1OpenSSL CHANGES 2=============== 3 4This is a high-level summary of the most important changes. 5For a full list of changes, see the [git commit log][log] and 6pick the appropriate release branch. 7 8 [log]: https://github.com/openssl/openssl/commits/ 9 10OpenSSL Releases 11---------------- 12 13 - [OpenSSL 3.0](#openssl-30) 14 - [OpenSSL 1.1.1](#openssl-111) 15 - [OpenSSL 1.1.0](#openssl-110) 16 - [OpenSSL 1.0.2](#openssl-102) 17 - [OpenSSL 1.0.1](#openssl-101) 18 - [OpenSSL 1.0.0](#openssl-100) 19 - [OpenSSL 0.9.x](#openssl-09x) 20 21OpenSSL 3.0 22----------- 23 24For OpenSSL 3.0 a [Migration guide][] has been added, so the CHANGES entries 25listed here are only a brief description. 26The migration guide contains more detailed information related to new features, 27breaking changes, and mappings for the large list of deprecated functions. 28 29[Migration guide]: https://github.com/openssl/openssl/tree/master/doc/man7/migration_guide.pod 30 31### Changes between 3.0.7 and 3.0.8 [7 Feb 2023] 32 33 * Fixed NULL dereference during PKCS7 data verification. 34 35 A NULL pointer can be dereferenced when signatures are being 36 verified on PKCS7 signed or signedAndEnveloped data. In case the hash 37 algorithm used for the signature is known to the OpenSSL library but 38 the implementation of the hash algorithm is not available the digest 39 initialization will fail. There is a missing check for the return 40 value from the initialization function which later leads to invalid 41 usage of the digest API most likely leading to a crash. 42 ([CVE-2023-0401]) 43 44 PKCS7 data is processed by the SMIME library calls and also by the 45 time stamp (TS) library calls. The TLS implementation in OpenSSL does 46 not call these functions however third party applications would be 47 affected if they call these functions to verify signatures on untrusted 48 data. 49 50 *Tomáš Mráz* 51 52 * Fixed X.400 address type confusion in X.509 GeneralName. 53 54 There is a type confusion vulnerability relating to X.400 address processing 55 inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING 56 but the public structure definition for GENERAL_NAME incorrectly specified 57 the type of the x400Address field as ASN1_TYPE. This field is subsequently 58 interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather 59 than an ASN1_STRING. 60 61 When CRL checking is enabled (i.e. the application sets the 62 X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to 63 pass arbitrary pointers to a memcmp call, enabling them to read memory 64 contents or enact a denial of service. 65 ([CVE-2023-0286]) 66 67 *Hugo Landau* 68 69 * Fixed NULL dereference validating DSA public key. 70 71 An invalid pointer dereference on read can be triggered when an 72 application tries to check a malformed DSA public key by the 73 EVP_PKEY_public_check() function. This will most likely lead 74 to an application crash. This function can be called on public 75 keys supplied from untrusted sources which could allow an attacker 76 to cause a denial of service attack. 77 78 The TLS implementation in OpenSSL does not call this function 79 but applications might call the function if there are additional 80 security requirements imposed by standards such as FIPS 140-3. 81 ([CVE-2023-0217]) 82 83 *Shane Lontis, Tomáš Mráz* 84 85 * Fixed Invalid pointer dereference in d2i_PKCS7 functions. 86 87 An invalid pointer dereference on read can be triggered when an 88 application tries to load malformed PKCS7 data with the 89 d2i_PKCS7(), d2i_PKCS7_bio() or d2i_PKCS7_fp() functions. 90 91 The result of the dereference is an application crash which could 92 lead to a denial of service attack. The TLS implementation in OpenSSL 93 does not call this function however third party applications might 94 call these functions on untrusted data. 95 ([CVE-2023-0216]) 96 97 *Tomáš Mráz* 98 99 * Fixed Use-after-free following BIO_new_NDEF. 100 101 The public API function BIO_new_NDEF is a helper function used for 102 streaming ASN.1 data via a BIO. It is primarily used internally to OpenSSL 103 to support the SMIME, CMS and PKCS7 streaming capabilities, but may also 104 be called directly by end user applications. 105 106 The function receives a BIO from the caller, prepends a new BIO_f_asn1 107 filter BIO onto the front of it to form a BIO chain, and then returns 108 the new head of the BIO chain to the caller. Under certain conditions, 109 for example if a CMS recipient public key is invalid, the new filter BIO 110 is freed and the function returns a NULL result indicating a failure. 111 However, in this case, the BIO chain is not properly cleaned up and the 112 BIO passed by the caller still retains internal pointers to the previously 113 freed filter BIO. If the caller then goes on to call BIO_pop() on the BIO 114 then a use-after-free will occur. This will most likely result in a crash. 115 ([CVE-2023-0215]) 116 117 *Viktor Dukhovni, Matt Caswell* 118 119 * Fixed Double free after calling PEM_read_bio_ex. 120 121 The function PEM_read_bio_ex() reads a PEM file from a BIO and parses and 122 decodes the "name" (e.g. "CERTIFICATE"), any header data and the payload 123 data. If the function succeeds then the "name_out", "header" and "data" 124 arguments are populated with pointers to buffers containing the relevant 125 decoded data. The caller is responsible for freeing those buffers. It is 126 possible to construct a PEM file that results in 0 bytes of payload data. 127 In this case PEM_read_bio_ex() will return a failure code but will populate 128 the header argument with a pointer to a buffer that has already been freed. 129 If the caller also frees this buffer then a double free will occur. This 130 will most likely lead to a crash. 131 132 The functions PEM_read_bio() and PEM_read() are simple wrappers around 133 PEM_read_bio_ex() and therefore these functions are also directly affected. 134 135 These functions are also called indirectly by a number of other OpenSSL 136 functions including PEM_X509_INFO_read_bio_ex() and 137 SSL_CTX_use_serverinfo_file() which are also vulnerable. Some OpenSSL 138 internal uses of these functions are not vulnerable because the caller does 139 not free the header argument if PEM_read_bio_ex() returns a failure code. 140 ([CVE-2022-4450]) 141 142 *Kurt Roeckx, Matt Caswell* 143 144 * Fixed Timing Oracle in RSA Decryption. 145 146 A timing based side channel exists in the OpenSSL RSA Decryption 147 implementation which could be sufficient to recover a plaintext across 148 a network in a Bleichenbacher style attack. To achieve a successful 149 decryption an attacker would have to be able to send a very large number 150 of trial messages for decryption. The vulnerability affects all RSA padding 151 modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. 152 ([CVE-2022-4304]) 153 154 *Dmitry Belyavsky, Hubert Kario* 155 156 * Fixed X.509 Name Constraints Read Buffer Overflow. 157 158 A read buffer overrun can be triggered in X.509 certificate verification, 159 specifically in name constraint checking. The read buffer overrun might 160 result in a crash which could lead to a denial of service attack. 161 In a TLS client, this can be triggered by connecting to a malicious 162 server. In a TLS server, this can be triggered if the server requests 163 client authentication and a malicious client connects. 164 ([CVE-2022-4203]) 165 166 *Viktor Dukhovni* 167 168 * Fixed X.509 Policy Constraints Double Locking security issue. 169 170 If an X.509 certificate contains a malformed policy constraint and 171 policy processing is enabled, then a write lock will be taken twice 172 recursively. On some operating systems (most widely: Windows) this 173 results in a denial of service when the affected process hangs. Policy 174 processing being enabled on a publicly facing server is not considered 175 to be a common setup. 176 ([CVE-2022-3996]) 177 178 *Paul Dale* 179 180 * Our provider implementations of `OSSL_FUNC_KEYMGMT_EXPORT` and 181 `OSSL_FUNC_KEYMGMT_GET_PARAMS` for EC and SM2 keys now honor 182 `OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT` as set (and 183 default to `POINT_CONVERSION_UNCOMPRESSED`) when exporting 184 `OSSL_PKEY_PARAM_PUB_KEY`, instead of unconditionally using 185 `POINT_CONVERSION_COMPRESSED` as in previous 3.x releases. 186 For symmetry, our implementation of `EVP_PKEY_ASN1_METHOD->export_to` 187 for legacy EC and SM2 keys is also changed similarly to honor the 188 equivalent conversion format flag as specified in the underlying 189 `EC_KEY` object being exported to a provider, when this function is 190 called through `EVP_PKEY_export()`. 191 192 *Nicola Tuveri* 193 194### Changes between 3.0.6 and 3.0.7 [1 Nov 2022] 195 196 * Fixed two buffer overflows in punycode decoding functions. 197 198 A buffer overrun can be triggered in X.509 certificate verification, 199 specifically in name constraint checking. Note that this occurs after 200 certificate chain signature verification and requires either a CA to 201 have signed the malicious certificate or for the application to continue 202 certificate verification despite failure to construct a path to a trusted 203 issuer. 204 205 In a TLS client, this can be triggered by connecting to a malicious 206 server. In a TLS server, this can be triggered if the server requests 207 client authentication and a malicious client connects. 208 209 An attacker can craft a malicious email address to overflow 210 an arbitrary number of bytes containing the `.` character (decimal 46) 211 on the stack. This buffer overflow could result in a crash (causing a 212 denial of service). 213 ([CVE-2022-3786]) 214 215 An attacker can craft a malicious email address to overflow four 216 attacker-controlled bytes on the stack. This buffer overflow could 217 result in a crash (causing a denial of service) or potentially remote code 218 execution depending on stack layout for any given platform/compiler. 219 ([CVE-2022-3602]) 220 221 *Paul Dale* 222 223 * Removed all references to invalid OSSL_PKEY_PARAM_RSA names for CRT 224 parameters in OpenSSL code. 225 Applications should not use the names OSSL_PKEY_PARAM_RSA_FACTOR, 226 OSSL_PKEY_PARAM_RSA_EXPONENT and OSSL_PKEY_PARAM_RSA_COEFFICIENT. 227 Use the numbered names such as OSSL_PKEY_PARAM_RSA_FACTOR1 instead. 228 Using these invalid names may cause algorithms to use slower methods 229 that ignore the CRT parameters. 230 231 *Shane Lontis* 232 233 * Fixed a regression introduced in 3.0.6 version raising errors on some stack 234 operations. 235 236 *Tomáš Mráz* 237 238 * Fixed a regression introduced in 3.0.6 version not refreshing the certificate 239 data to be signed before signing the certificate. 240 241 *Gibeom Gwon* 242 243 * Added RIPEMD160 to the default provider. 244 245 *Paul Dale* 246 247 * Ensured that the key share group sent or accepted for the key exchange 248 is allowed for the protocol version. 249 250 *Matt Caswell* 251 252### Changes between 3.0.5 and 3.0.6 [11 Oct 2022] 253 254 * OpenSSL supports creating a custom cipher via the legacy 255 EVP_CIPHER_meth_new() function and associated function calls. This function 256 was deprecated in OpenSSL 3.0 and application authors are instead encouraged 257 to use the new provider mechanism in order to implement custom ciphers. 258 259 OpenSSL versions 3.0.0 to 3.0.5 incorrectly handle legacy custom ciphers 260 passed to the EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() and 261 EVP_CipherInit_ex2() functions (as well as other similarly named encryption 262 and decryption initialisation functions). Instead of using the custom cipher 263 directly it incorrectly tries to fetch an equivalent cipher from the 264 available providers. An equivalent cipher is found based on the NID passed to 265 EVP_CIPHER_meth_new(). This NID is supposed to represent the unique NID for a 266 given cipher. However it is possible for an application to incorrectly pass 267 NID_undef as this value in the call to EVP_CIPHER_meth_new(). When NID_undef 268 is used in this way the OpenSSL encryption/decryption initialisation function 269 will match the NULL cipher as being equivalent and will fetch this from the 270 available providers. This will succeed if the default provider has been 271 loaded (or if a third party provider has been loaded that offers this 272 cipher). Using the NULL cipher means that the plaintext is emitted as the 273 ciphertext. 274 275 Applications are only affected by this issue if they call 276 EVP_CIPHER_meth_new() using NID_undef and subsequently use it in a call to an 277 encryption/decryption initialisation function. Applications that only use 278 SSL/TLS are not impacted by this issue. 279 ([CVE-2022-3358]) 280 281 *Matt Caswell* 282 283 * Fix LLVM vs Apple LLVM version numbering confusion that caused build failures 284 on MacOS 10.11 285 286 *Richard Levitte* 287 288 * Fixed the linux-mips64 Configure target which was missing the 289 SIXTY_FOUR_BIT bn_ops flag. This was causing heap corruption on that 290 platform. 291 292 *Adam Joseph* 293 294 * Fix handling of a ticket key callback that returns 0 in TLSv1.3 to not send a 295 ticket 296 297 *Matt Caswell* 298 299 * Correctly handle a retransmitted ClientHello in DTLS 300 301 *Matt Caswell* 302 303 * Fixed detection of ktls support in cross-compile environment on Linux 304 305 *Tomas Mraz* 306 307 * Fixed some regressions and test failures when running the 3.0.0 FIPS provider 308 against 3.0.x 309 310 *Paul Dale* 311 312 * Fixed SSL_pending() and SSL_has_pending() with DTLS which were failing to 313 report correct results in some cases 314 315 *Matt Caswell* 316 317 * Fix UWP builds by defining VirtualLock 318 319 *Charles Milette* 320 321 * For known safe primes use the minimum key length according to RFC 7919. 322 Longer private key sizes unnecessarily raise the cycles needed to compute the 323 shared secret without any increase of the real security. This fixes a 324 regression from 1.1.1 where these shorter keys were generated for the known 325 safe primes. 326 327 *Tomas Mraz* 328 329 * Added the loongarch64 target 330 331 *Shi Pujin* 332 333 * Fixed EC ASM flag passing. Flags for ASM implementations of EC curves were 334 only passed to the FIPS provider and not to the default or legacy provider. 335 336 *Juergen Christ* 337 338 * Fixed reported performance degradation on aarch64. Restored the 339 implementation prior to commit 2621751 ("aes/asm/aesv8-armx.pl: avoid 340 32-bit lane assignment in CTR mode") for 64bit targets only, since it is 341 reportedly 2-17% slower and the silicon errata only affects 32bit targets. 342 The new algorithm is still used for 32 bit targets. 343 344 *Bernd Edlinger* 345 346 * Added a missing header for memcmp that caused compilation failure on some 347 platforms 348 349 *Gregor Jasny* 350 351### Changes between 3.0.4 and 3.0.5 [5 Jul 2022] 352 353 * The OpenSSL 3.0.4 release introduced a serious bug in the RSA 354 implementation for X86_64 CPUs supporting the AVX512IFMA instructions. 355 This issue makes the RSA implementation with 2048 bit private keys 356 incorrect on such machines and memory corruption will happen during 357 the computation. As a consequence of the memory corruption an attacker 358 may be able to trigger a remote code execution on the machine performing 359 the computation. 360 361 SSL/TLS servers or other servers using 2048 bit RSA private keys running 362 on machines supporting AVX512IFMA instructions of the X86_64 architecture 363 are affected by this issue. 364 ([CVE-2022-2274]) 365 366 *Xi Ruoyao* 367 368 * AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimised 369 implementation would not encrypt the entirety of the data under some 370 circumstances. This could reveal sixteen bytes of data that was 371 preexisting in the memory that wasn't written. In the special case of 372 "in place" encryption, sixteen bytes of the plaintext would be revealed. 373 374 Since OpenSSL does not support OCB based cipher suites for TLS and DTLS, 375 they are both unaffected. 376 ([CVE-2022-2097]) 377 378 *Alex Chernyakhovsky, David Benjamin, Alejandro Sedeño* 379 380### Changes between 3.0.3 and 3.0.4 [21 Jun 2022] 381 382 * In addition to the c_rehash shell command injection identified in 383 CVE-2022-1292, further bugs where the c_rehash script does not 384 properly sanitise shell metacharacters to prevent command injection have been 385 fixed. 386 387 When the CVE-2022-1292 was fixed it was not discovered that there 388 are other places in the script where the file names of certificates 389 being hashed were possibly passed to a command executed through the shell. 390 391 This script is distributed by some operating systems in a manner where 392 it is automatically executed. On such operating systems, an attacker 393 could execute arbitrary commands with the privileges of the script. 394 395 Use of the c_rehash script is considered obsolete and should be replaced 396 by the OpenSSL rehash command line tool. 397 (CVE-2022-2068) 398 399 *Daniel Fiala, Tomáš Mráz* 400 401 * Case insensitive string comparison no longer uses locales. It has instead 402 been directly implemented. 403 404 *Paul Dale* 405 406### Changes between 3.0.2 and 3.0.3 [3 May 2022] 407 408 * Case insensitive string comparison is reimplemented via new locale-agnostic 409 comparison functions OPENSSL_str[n]casecmp always using the POSIX locale for 410 comparison. The previous implementation had problems when the Turkish locale 411 was used. 412 413 *Dmitry Belyavskiy* 414 415 * Fixed a bug in the c_rehash script which was not properly sanitising shell 416 metacharacters to prevent command injection. This script is distributed by 417 some operating systems in a manner where it is automatically executed. On 418 such operating systems, an attacker could execute arbitrary commands with the 419 privileges of the script. 420 421 Use of the c_rehash script is considered obsolete and should be replaced 422 by the OpenSSL rehash command line tool. 423 (CVE-2022-1292) 424 425 *Tomáš Mráz* 426 427 * Fixed a bug in the function `OCSP_basic_verify` that verifies the signer 428 certificate on an OCSP response. The bug caused the function in the case 429 where the (non-default) flag OCSP_NOCHECKS is used to return a postivie 430 response (meaning a successful verification) even in the case where the 431 response signing certificate fails to verify. 432 433 It is anticipated that most users of `OCSP_basic_verify` will not use the 434 OCSP_NOCHECKS flag. In this case the `OCSP_basic_verify` function will return 435 a negative value (indicating a fatal error) in the case of a certificate 436 verification failure. The normal expected return value in this case would be 437 0. 438 439 This issue also impacts the command line OpenSSL "ocsp" application. When 440 verifying an ocsp response with the "-no_cert_checks" option the command line 441 application will report that the verification is successful even though it 442 has in fact failed. In this case the incorrect successful response will also 443 be accompanied by error messages showing the failure and contradicting the 444 apparently successful result. 445 ([CVE-2022-1343]) 446 447 *Matt Caswell* 448 449 * Fixed a bug where the RC4-MD5 ciphersuite incorrectly used the 450 AAD data as the MAC key. This made the MAC key trivially predictable. 451 452 An attacker could exploit this issue by performing a man-in-the-middle attack 453 to modify data being sent from one endpoint to an OpenSSL 3.0 recipient such 454 that the modified data would still pass the MAC integrity check. 455 456 Note that data sent from an OpenSSL 3.0 endpoint to a non-OpenSSL 3.0 457 endpoint will always be rejected by the recipient and the connection will 458 fail at that point. Many application protocols require data to be sent from 459 the client to the server first. Therefore, in such a case, only an OpenSSL 460 3.0 server would be impacted when talking to a non-OpenSSL 3.0 client. 461 462 If both endpoints are OpenSSL 3.0 then the attacker could modify data being 463 sent in both directions. In this case both clients and servers could be 464 affected, regardless of the application protocol. 465 466 Note that in the absence of an attacker this bug means that an OpenSSL 3.0 467 endpoint communicating with a non-OpenSSL 3.0 endpoint will fail to complete 468 the handshake when using this ciphersuite. 469 470 The confidentiality of data is not impacted by this issue, i.e. an attacker 471 cannot decrypt data that has been encrypted using this ciphersuite - they can 472 only modify it. 473 474 In order for this attack to work both endpoints must legitimately negotiate 475 the RC4-MD5 ciphersuite. This ciphersuite is not compiled by default in 476 OpenSSL 3.0, and is not available within the default provider or the default 477 ciphersuite list. This ciphersuite will never be used if TLSv1.3 has been 478 negotiated. In order for an OpenSSL 3.0 endpoint to use this ciphersuite the 479 following must have occurred: 480 481 1) OpenSSL must have been compiled with the (non-default) compile time option 482 enable-weak-ssl-ciphers 483 484 2) OpenSSL must have had the legacy provider explicitly loaded (either 485 through application code or via configuration) 486 487 3) The ciphersuite must have been explicitly added to the ciphersuite list 488 489 4) The libssl security level must have been set to 0 (default is 1) 490 491 5) A version of SSL/TLS below TLSv1.3 must have been negotiated 492 493 6) Both endpoints must negotiate the RC4-MD5 ciphersuite in preference to any 494 others that both endpoints have in common 495 (CVE-2022-1434) 496 497 *Matt Caswell* 498 499 * Fix a bug in the OPENSSL_LH_flush() function that breaks reuse of the memory 500 occuppied by the removed hash table entries. 501 502 This function is used when decoding certificates or keys. If a long lived 503 process periodically decodes certificates or keys its memory usage will 504 expand without bounds and the process might be terminated by the operating 505 system causing a denial of service. Also traversing the empty hash table 506 entries will take increasingly more time. 507 508 Typically such long lived processes might be TLS clients or TLS servers 509 configured to accept client certificate authentication. 510 (CVE-2022-1473) 511 512 *Hugo Landau, Aliaksei Levin* 513 514 * The functions `OPENSSL_LH_stats` and `OPENSSL_LH_stats_bio` now only report 515 the `num_items`, `num_nodes` and `num_alloc_nodes` statistics. All other 516 statistics are no longer supported. For compatibility, these statistics are 517 still listed in the output but are now always reported as zero. 518 519 *Hugo Landau* 520 521### Changes between 3.0.1 and 3.0.2 [15 Mar 2022] 522 523 * Fixed a bug in the BN_mod_sqrt() function that can cause it to loop forever 524 for non-prime moduli. 525 526 Internally this function is used when parsing certificates that contain 527 elliptic curve public keys in compressed form or explicit elliptic curve 528 parameters with a base point encoded in compressed form. 529 530 It is possible to trigger the infinite loop by crafting a certificate that 531 has invalid explicit curve parameters. 532 533 Since certificate parsing happens prior to verification of the certificate 534 signature, any process that parses an externally supplied certificate may thus 535 be subject to a denial of service attack. The infinite loop can also be 536 reached when parsing crafted private keys as they can contain explicit 537 elliptic curve parameters. 538 539 Thus vulnerable situations include: 540 541 - TLS clients consuming server certificates 542 - TLS servers consuming client certificates 543 - Hosting providers taking certificates or private keys from customers 544 - Certificate authorities parsing certification requests from subscribers 545 - Anything else which parses ASN.1 elliptic curve parameters 546 547 Also any other applications that use the BN_mod_sqrt() where the attacker 548 can control the parameter values are vulnerable to this DoS issue. 549 ([CVE-2022-0778]) 550 551 *Tomáš Mráz* 552 553 * Add ciphersuites based on DHE_PSK (RFC 4279) and ECDHE_PSK (RFC 5489) 554 to the list of ciphersuites providing Perfect Forward Secrecy as 555 required by SECLEVEL >= 3. 556 557 *Dmitry Belyavskiy, Nicola Tuveri* 558 559 * Made the AES constant time code for no-asm configurations 560 optional due to the resulting 95% performance degradation. 561 The AES constant time code can be enabled, for no assembly 562 builds, with: ./config no-asm -DOPENSSL_AES_CONST_TIME 563 564 *Paul Dale* 565 566 * Fixed PEM_write_bio_PKCS8PrivateKey() to make it possible to use empty 567 passphrase strings. 568 569 *Darshan Sen* 570 571 * The negative return value handling of the certificate verification callback 572 was reverted. The replacement is to set the verification retry state with 573 the SSL_set_retry_verify() function. 574 575 *Tomáš Mráz* 576 577### Changes between 3.0.0 and 3.0.1 [14 Dec 2021] 578 579 * Fixed invalid handling of X509_verify_cert() internal errors in libssl 580 Internally libssl in OpenSSL calls X509_verify_cert() on the client side to 581 verify a certificate supplied by a server. That function may return a 582 negative return value to indicate an internal error (for example out of 583 memory). Such a negative return value is mishandled by OpenSSL and will cause 584 an IO function (such as SSL_connect() or SSL_do_handshake()) to not indicate 585 success and a subsequent call to SSL_get_error() to return the value 586 SSL_ERROR_WANT_RETRY_VERIFY. This return value is only supposed to be 587 returned by OpenSSL if the application has previously called 588 SSL_CTX_set_cert_verify_callback(). Since most applications do not do this 589 the SSL_ERROR_WANT_RETRY_VERIFY return value from SSL_get_error() will be 590 totally unexpected and applications may not behave correctly as a result. The 591 exact behaviour will depend on the application but it could result in 592 crashes, infinite loops or other similar incorrect responses. 593 594 This issue is made more serious in combination with a separate bug in OpenSSL 595 3.0 that will cause X509_verify_cert() to indicate an internal error when 596 processing a certificate chain. This will occur where a certificate does not 597 include the Subject Alternative Name extension but where a Certificate 598 Authority has enforced name constraints. This issue can occur even with valid 599 chains. 600 ([CVE-2021-4044]) 601 602 *Matt Caswell* 603 604 * Corrected a few file name and file reference bugs in the build, 605 installation and setup scripts, which lead to installation verification 606 failures. Slightly enhanced the installation verification script. 607 608 *Richard Levitte* 609 610 * Fixed EVP_PKEY_eq() to make it possible to use it with strictly private 611 keys. 612 613 *Richard Levitte* 614 615 * Fixed PVK encoder to properly query for the passphrase. 616 617 *Tomáš Mráz* 618 619 * Multiple fixes in the OSSL_HTTP API functions. 620 621 *David von Oheimb* 622 623 * Allow sign extension in OSSL_PARAM_allocate_from_text() for the 624 OSSL_PARAM_INTEGER data type and return error on negative numbers 625 used with the OSSL_PARAM_UNSIGNED_INTEGER data type. Make 626 OSSL_PARAM_BLD_push_BN{,_pad}() return an error on negative numbers. 627 628 *Richard Levitte* 629 630 * Allow copying uninitialized digest contexts with EVP_MD_CTX_copy_ex. 631 632 *Tomáš Mráz* 633 634 * Fixed detection of ARMv7 and ARM64 CPU features on FreeBSD. 635 636 *Allan Jude* 637 638 * Multiple threading fixes. 639 640 *Matt Caswell* 641 642 * Added NULL digest implementation to keep compatibility with 1.1.1 version. 643 644 *Tomáš Mráz* 645 646 * Allow fetching an operation from the provider that owns an unexportable key 647 as a fallback if that is still allowed by the property query. 648 649 *Richard Levitte* 650 651### Changes between 1.1.1 and 3.0.0 [7 sep 2021] 652 653 * TLS_MAX_VERSION, DTLS_MAX_VERSION and DTLS_MIN_VERSION constants are now 654 deprecated. 655 656 *Matt Caswell* 657 658 * The `OPENSSL_s390xcap` environment variable can be used to set bits in the 659 S390X capability vector to zero. This simplifies testing of different code 660 paths on S390X architecture. 661 662 *Patrick Steuer* 663 664 * Encrypting more than 2^64 TLS records with AES-GCM is disallowed 665 as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness Requirements from 666 SP 800-38D". The communication will fail at this point. 667 668 *Paul Dale* 669 670 * The EC_GROUP_clear_free() function is deprecated as there is nothing 671 confidential in EC_GROUP data. 672 673 *Nicola Tuveri* 674 675 * The byte order mark (BOM) character is ignored if encountered at the 676 beginning of a PEM-formatted file. 677 678 *Dmitry Belyavskiy* 679 680 * Added CMS support for the Russian GOST algorithms. 681 682 *Dmitry Belyavskiy* 683 684 * Due to move of the implementation of cryptographic operations 685 to the providers, validation of various operation parameters can 686 be postponed until the actual operation is executed where previously 687 it happened immediately when an operation parameter was set. 688 689 For example when setting an unsupported curve with 690 EVP_PKEY_CTX_set_ec_paramgen_curve_nid() this function call will not 691 fail but later keygen operations with the EVP_PKEY_CTX will fail. 692 693 *OpenSSL team members and many third party contributors* 694 695 * The EVP_get_cipherbyname() function will return NULL for algorithms such as 696 "AES-128-SIV", "AES-128-CBC-CTS" and "CAMELLIA-128-CBC-CTS" which were 697 previously only accessible via low level interfaces. Use EVP_CIPHER_fetch() 698 instead to retrieve these algorithms from a provider. 699 700 *Shane Lontis* 701 702 * On build targets where the multilib postfix is set in the build 703 configuration the libdir directory was changing based on whether 704 the lib directory with the multilib postfix exists on the system 705 or not. This unpredictable behavior was removed and eventual 706 multilib postfix is now always added to the default libdir. Use 707 `--libdir=lib` to override the libdir if adding the postfix is 708 undesirable. 709 710 *Jan Lána* 711 712 * The triple DES key wrap functionality now conforms to RFC 3217 but is 713 no longer interoperable with OpenSSL 1.1.1. 714 715 *Paul Dale* 716 717 * The ERR_GET_FUNC() function was removed. With the loss of meaningful 718 function codes, this function can only cause problems for calling 719 applications. 720 721 *Paul Dale* 722 723 * Add a configurable flag to output date formats as ISO 8601. Does not 724 change the default date format. 725 726 *William Edmisten* 727 728 * Version of MSVC earlier than 1300 could get link warnings, which could 729 be suppressed if the undocumented -DI_CAN_LIVE_WITH_LNK4049 was set. 730 Support for this flag has been removed. 731 732 *Rich Salz* 733 734 * Rework and make DEBUG macros consistent. Remove unused -DCONF_DEBUG, 735 -DBN_CTX_DEBUG, and REF_PRINT. Add a new tracing category and use it for 736 printing reference counts. Rename -DDEBUG_UNUSED to -DUNUSED_RESULT_DEBUG 737 Fix BN_DEBUG_RAND so it compiles and, when set, force DEBUG_RAND to be set 738 also. Rename engine_debug_ref to be ENGINE_REF_PRINT also for consistency. 739 740 *Rich Salz* 741 742 * The signatures of the functions to get and set options on SSL and 743 SSL_CTX objects changed from "unsigned long" to "uint64_t" type. 744 Some source code changes may be required. 745 746 *Rich Salz* 747 748 * The public definitions of conf_method_st and conf_st have been 749 deprecated. They will be made opaque in a future release. 750 751 *Rich Salz and Tomáš Mráz* 752 753 * Client-initiated renegotiation is disabled by default. To allow it, use 754 the -client_renegotiation option, the SSL_OP_ALLOW_CLIENT_RENEGOTIATION 755 flag, or the "ClientRenegotiation" config parameter as appropriate. 756 757 *Rich Salz* 758 759 * Add "abspath" and "includedir" pragma's to config files, to prevent, 760 or modify relative pathname inclusion. 761 762 *Rich Salz* 763 764 * OpenSSL includes a cryptographic module that is intended to be FIPS 140-2 765 validated. Please consult the README-FIPS and 766 README-PROVIDERS files, as well as the migration guide. 767 768 *OpenSSL team members and many third party contributors* 769 770 * For the key types DH and DHX the allowed settable parameters are now different. 771 772 *Shane Lontis* 773 774 * The openssl commands that read keys, certificates, and CRLs now 775 automatically detect the PEM or DER format of the input files. 776 777 *David von Oheimb, Richard Levitte, and Tomáš Mráz* 778 779 * Added enhanced PKCS#12 APIs which accept a library context. 780 781 *Jon Spillett* 782 783 * The default manual page suffix ($MANSUFFIX) has been changed to "ossl" 784 785 *Matt Caswell* 786 787 * Added support for Kernel TLS (KTLS). 788 789 *Boris Pismenny, John Baldwin and Andrew Gallatin* 790 791 * Support for RFC 5746 secure renegotiation is now required by default for 792 SSL or TLS connections to succeed. 793 794 *Benjamin Kaduk* 795 796 * The signature of the `copy` functional parameter of the 797 EVP_PKEY_meth_set_copy() function has changed so its `src` argument is 798 now `const EVP_PKEY_CTX *` instead of `EVP_PKEY_CTX *`. Similarly 799 the signature of the `pub_decode` functional parameter of the 800 EVP_PKEY_asn1_set_public() function has changed so its `pub` argument is 801 now `const X509_PUBKEY *` instead of `X509_PUBKEY *`. 802 803 *David von Oheimb* 804 805 * The error return values from some control calls (ctrl) have changed. 806 807 *Paul Dale* 808 809 * A public key check is now performed during EVP_PKEY_derive_set_peer(). 810 811 *Shane Lontis* 812 813 * Many functions in the EVP_ namespace that are getters of values from 814 implementations or contexts were renamed to include get or get0 in their 815 names. Old names are provided as macro aliases for compatibility and 816 are not deprecated. 817 818 *Tomáš Mráz* 819 820 * The EVP_PKEY_CTRL_PKCS7_ENCRYPT, EVP_PKEY_CTRL_PKCS7_DECRYPT, 821 EVP_PKEY_CTRL_PKCS7_SIGN, EVP_PKEY_CTRL_CMS_ENCRYPT, 822 EVP_PKEY_CTRL_CMS_DECRYPT, and EVP_PKEY_CTRL_CMS_SIGN control operations 823 are deprecated. 824 825 *Tomáš Mráz* 826 827 * The EVP_PKEY_public_check() and EVP_PKEY_param_check() functions now work for 828 more key types. 829 830 * The output from the command line applications may have minor 831 changes. 832 833 *Paul Dale* 834 835 * The output from numerous "printing" may have minor changes. 836 837 *David von Oheimb* 838 839 * Windows thread synchronization uses read/write primitives (SRWLock) when 840 supported by the OS, otherwise CriticalSection continues to be used. 841 842 *Vincent Drake* 843 844 * Add filter BIO BIO_f_readbuffer() that allows BIO_tell() and BIO_seek() to 845 work on read only BIO source/sinks that do not support these functions. 846 This allows piping or redirection of a file BIO using stdin to be buffered 847 into memory. This is used internally in OSSL_DECODER_from_bio(). 848 849 *Shane Lontis* 850 851 * OSSL_STORE_INFO_get_type() may now return an additional value. In 1.1.1 852 this function would return one of the values OSSL_STORE_INFO_NAME, 853 OSSL_STORE_INFO_PKEY, OSSL_STORE_INFO_PARAMS, OSSL_STORE_INFO_CERT or 854 OSSL_STORE_INFO_CRL. Decoded public keys would previously have been reported 855 as type OSSL_STORE_INFO_PKEY in 1.1.1. In 3.0 decoded public keys are now 856 reported as having the new type OSSL_STORE_INFO_PUBKEY. Applications 857 using this function should be amended to handle the changed return value. 858 859 *Richard Levitte* 860 861 * Improved adherence to Enhanced Security Services (ESS, RFC 2634 and RFC 5035) 862 for the TSP and CMS Advanced Electronic Signatures (CAdES) implementations. 863 As required by RFC 5035 check both ESSCertID and ESSCertIDv2 if both present. 864 Correct the semantics of checking the validation chain in case ESSCertID{,v2} 865 contains more than one certificate identifier: This means that all 866 certificates referenced there MUST be part of the validation chain. 867 868 *David von Oheimb* 869 870 * The implementation of older EVP ciphers related to CAST, IDEA, SEED, RC2, RC4, 871 RC5, DESX and DES have been moved to the legacy provider. 872 873 *Matt Caswell* 874 875 * The implementation of the EVP digests MD2, MD4, MDC2, WHIRLPOOL and 876 RIPEMD-160 have been moved to the legacy provider. 877 878 *Matt Caswell* 879 880 * The deprecated function EVP_PKEY_get0() now returns NULL being called for a 881 provided key. 882 883 *Dmitry Belyavskiy* 884 885 * The deprecated functions EVP_PKEY_get0_RSA(), 886 EVP_PKEY_get0_DSA(), EVP_PKEY_get0_EC_KEY(), EVP_PKEY_get0_DH(), 887 EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and EVP_PKEY_get0_siphash() as 888 well as the similarly named "get1" functions behave differently in 889 OpenSSL 3.0. 890 891 *Matt Caswell* 892 893 * A number of functions handling low-level keys or engines were deprecated 894 including EVP_PKEY_set1_engine(), EVP_PKEY_get0_engine(), EVP_PKEY_assign(), 895 EVP_PKEY_get0(), EVP_PKEY_get0_hmac(), EVP_PKEY_get0_poly1305() and 896 EVP_PKEY_get0_siphash(). 897 898 *Matt Caswell* 899 900 * PKCS#5 PBKDF1 key derivation has been moved from PKCS5_PBE_keyivgen() into 901 the legacy crypto provider as an EVP_KDF. Applications requiring this KDF 902 will need to load the legacy crypto provider. This includes these PBE 903 algorithms which use this KDF: 904 - NID_pbeWithMD2AndDES_CBC 905 - NID_pbeWithMD5AndDES_CBC 906 - NID_pbeWithSHA1AndRC2_CBC 907 - NID_pbeWithMD2AndRC2_CBC 908 - NID_pbeWithMD5AndRC2_CBC 909 - NID_pbeWithSHA1AndDES_CBC 910 911 *Jon Spillett* 912 913 * Deprecated obsolete BIO_set_callback(), BIO_get_callback(), and 914 BIO_debug_callback() functions. 915 916 *Tomáš Mráz* 917 918 * Deprecated obsolete EVP_PKEY_CTX_get0_dh_kdf_ukm() and 919 EVP_PKEY_CTX_get0_ecdh_kdf_ukm() functions. 920 921 *Tomáš Mráz* 922 923 * The RAND_METHOD APIs have been deprecated. 924 925 *Paul Dale* 926 927 * The SRP APIs have been deprecated. 928 929 *Matt Caswell* 930 931 * Add a compile time option to prevent the caching of provider fetched 932 algorithms. This is enabled by including the no-cached-fetch option 933 at configuration time. 934 935 *Paul Dale* 936 937 * pkcs12 now uses defaults of PBKDF2, AES and SHA-256, with a MAC iteration 938 count of PKCS12_DEFAULT_ITER. 939 940 *Tomáš Mráz and Sahana Prasad* 941 942 * The openssl speed command does not use low-level API calls anymore. 943 944 *Tomáš Mráz* 945 946 * Parallel dual-prime 1024-bit modular exponentiation for AVX512_IFMA 947 capable processors. 948 949 *Ilya Albrekht, Sergey Kirillov, Andrey Matyukov (Intel Corp)* 950 951 * Combining the Configure options no-ec and no-dh no longer disables TLSv1.3. 952 953 *Matt Caswell* 954 955 * Implemented support for fully "pluggable" TLSv1.3 groups. This means that 956 providers may supply their own group implementations (using either the "key 957 exchange" or the "key encapsulation" methods) which will automatically be 958 detected and used by libssl. 959 960 *Matt Caswell, Nicola Tuveri* 961 962 * The undocumented function X509_certificate_type() has been deprecated; 963 964 *Rich Salz* 965 966 * Deprecated the obsolete BN_pseudo_rand() and BN_pseudo_rand_range(). 967 968 *Tomáš Mráz* 969 970 * Removed RSA padding mode for SSLv23 (which was only used for 971 SSLv2). This includes the functions RSA_padding_check_SSLv23() and 972 RSA_padding_add_SSLv23() and the `-ssl` option in the deprecated 973 `rsautl` command. 974 975 *Rich Salz* 976 977 * Deprecated the obsolete X9.31 RSA key generation related functions. 978 979 * While a callback function set via `SSL_CTX_set_cert_verify_callback()` 980 is not allowed to return a value > 1, this is no more taken as failure. 981 982 *Viktor Dukhovni and David von Oheimb* 983 984 * Deprecated the obsolete X9.31 RSA key generation related functions 985 BN_X931_generate_Xpq(), BN_X931_derive_prime_ex(), and 986 BN_X931_generate_prime_ex(). 987 988 *Tomáš Mráz* 989 990 * The default key generation method for the regular 2-prime RSA keys was 991 changed to the FIPS 186-4 B.3.6 method. 992 993 *Shane Lontis* 994 995 * Deprecated the BN_is_prime_ex() and BN_is_prime_fasttest_ex() functions. 996 997 *Kurt Roeckx* 998 999 * Deprecated EVP_MD_CTX_set_update_fn() and EVP_MD_CTX_update_fn(). 1000 1001 *Rich Salz* 1002 1003 * Deprecated the type OCSP_REQ_CTX and the functions OCSP_REQ_CTX_*() and 1004 replaced with OSSL_HTTP_REQ_CTX and the functions OSSL_HTTP_REQ_CTX_*(). 1005 1006 *Rich Salz, Richard Levitte, and David von Oheimb* 1007 1008 * Deprecated `X509_http_nbio()` and `X509_CRL_http_nbio()`. 1009 1010 *David von Oheimb* 1011 1012 * Deprecated `OCSP_parse_url()`. 1013 1014 *David von Oheimb* 1015 1016 * Validation of SM2 keys has been separated from the validation of regular EC 1017 keys. 1018 1019 *Nicola Tuveri* 1020 1021 * Behavior of the `pkey` app is changed, when using the `-check` or `-pubcheck` 1022 switches: a validation failure triggers an early exit, returning a failure 1023 exit status to the parent process. 1024 1025 *Nicola Tuveri* 1026 1027 * Changed behavior of SSL_CTX_set_ciphersuites() and SSL_set_ciphersuites() 1028 to ignore unknown ciphers. 1029 1030 *Otto Hollmann* 1031 1032 * The `-cipher-commands` and `-digest-commands` options 1033 of the command line utility `list` have been deprecated. 1034 Instead use the `-cipher-algorithms` and `-digest-algorithms` options. 1035 1036 *Dmitry Belyavskiy* 1037 1038 * Added convenience functions for generating asymmetric key pairs: 1039 The 'quick' one-shot (yet somewhat limited) function L<EVP_PKEY_Q_keygen(3)> 1040 and macros for the most common cases: <EVP_RSA_gen(3)> and L<EVP_EC_gen(3)>. 1041 1042 *David von Oheimb* 1043 1044 * All of the low level EC_KEY functions have been deprecated. 1045 1046 *Shane Lontis, Paul Dale, Richard Levitte, and Tomáš Mráz* 1047 1048 * Deprecated all the libcrypto and libssl error string loading 1049 functions. 1050 1051 *Richard Levitte* 1052 1053 * The functions SSL_CTX_set_tmp_dh_callback and SSL_set_tmp_dh_callback, as 1054 well as the macros SSL_CTX_set_tmp_dh() and SSL_set_tmp_dh() have been 1055 deprecated. 1056 1057 *Matt Caswell* 1058 1059 * The `-crypt` option to the `passwd` command line tool has been removed. 1060 1061 *Paul Dale* 1062 1063 * The -C option to the `x509`, `dhparam`, `dsaparam`, and `ecparam` commands 1064 were removed. 1065 1066 *Rich Salz* 1067 1068 * Add support for AES Key Wrap inverse ciphers to the EVP layer. 1069 1070 *Shane Lontis* 1071 1072 * Deprecated EVP_PKEY_set1_tls_encodedpoint() and 1073 EVP_PKEY_get1_tls_encodedpoint(). 1074 1075 *Matt Caswell* 1076 1077 * The security callback, which can be customised by application code, supports 1078 the security operation SSL_SECOP_TMP_DH. One location of the "other" parameter 1079 was incorrectly passing a DH object. It now passed an EVP_PKEY in all cases. 1080 1081 *Matt Caswell* 1082 1083 * Add PKCS7_get_octet_string() and PKCS7_type_is_other() to the public 1084 interface. Their functionality remains unchanged. 1085 1086 *Jordan Montgomery* 1087 1088 * Added new option for 'openssl list', '-providers', which will display the 1089 list of loaded providers, their names, version and status. It optionally 1090 displays their gettable parameters. 1091 1092 *Paul Dale* 1093 1094 * Removed EVP_PKEY_set_alias_type(). 1095 1096 *Richard Levitte* 1097 1098 * Deprecated `EVP_PKEY_CTX_set_rsa_keygen_pubexp()` and introduced 1099 `EVP_PKEY_CTX_set1_rsa_keygen_pubexp()`, which is now preferred. 1100 1101 *Jeremy Walch* 1102 1103 * Changed all "STACK" functions to be macros instead of inline functions. Macro 1104 parameters are still checked for type safety at compile time via helper 1105 inline functions. 1106 1107 *Matt Caswell* 1108 1109 * Remove the RAND_DRBG API 1110 1111 *Paul Dale and Matthias St. Pierre* 1112 1113 * Allow `SSL_set1_host()` and `SSL_add1_host()` to take IP literal addresses 1114 as well as actual hostnames. 1115 1116 *David Woodhouse* 1117 1118 * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently 1119 ignore TLS protocol version bounds when configuring DTLS-based contexts, and 1120 conversely, silently ignore DTLS protocol version bounds when configuring 1121 TLS-based contexts. The commands can be repeated to set bounds of both 1122 types. The same applies with the corresponding "min_protocol" and 1123 "max_protocol" command-line switches, in case some application uses both TLS 1124 and DTLS. 1125 1126 SSL_CTX instances that are created for a fixed protocol version (e.g. 1127 `TLSv1_server_method()`) also silently ignore version bounds. Previously 1128 attempts to apply bounds to these protocol versions would result in an 1129 error. Now only the "version-flexible" SSL_CTX instances are subject to 1130 limits in configuration files in command-line options. 1131 1132 *Viktor Dukhovni* 1133 1134 * Deprecated the `ENGINE` API. Engines should be replaced with providers 1135 going forward. 1136 1137 *Paul Dale* 1138 1139 * Reworked the recorded ERR codes to make better space for system errors. 1140 To distinguish them, the macro `ERR_SYSTEM_ERROR()` indicates if the 1141 given code is a system error (true) or an OpenSSL error (false). 1142 1143 *Richard Levitte* 1144 1145 * Reworked the test perl framework to better allow parallel testing. 1146 1147 *Nicola Tuveri and David von Oheimb* 1148 1149 * Added ciphertext stealing algorithms AES-128-CBC-CTS, AES-192-CBC-CTS and 1150 AES-256-CBC-CTS to the providers. CS1, CS2 and CS3 variants are supported. 1151 1152 *Shane Lontis* 1153 1154 * 'Configure' has been changed to figure out the configuration target if 1155 none is given on the command line. Consequently, the 'config' script is 1156 now only a mere wrapper. All documentation is changed to only mention 1157 'Configure'. 1158 1159 *Rich Salz and Richard Levitte* 1160 1161 * Added a library context `OSSL_LIB_CTX` that applications as well as 1162 other libraries can use to form a separate context within which 1163 libcrypto operations are performed. 1164 1165 *Richard Levitte* 1166 1167 * Added various `_ex` functions to the OpenSSL API that support using 1168 a non-default `OSSL_LIB_CTX`. 1169 1170 *OpenSSL team* 1171 1172 * Handshake now fails if Extended Master Secret extension is dropped 1173 on renegotiation. 1174 1175 *Tomáš Mráz* 1176 1177 * Dropped interactive mode from the `openssl` program. 1178 1179 *Richard Levitte* 1180 1181 * Deprecated `EVP_PKEY_cmp()` and `EVP_PKEY_cmp_parameters()`. 1182 1183 *David von Oheimb and Shane Lontis* 1184 1185 * Deprecated `EC_METHOD_get_field_type()`. 1186 1187 *Billy Bob Brumley* 1188 1189 * Deprecated EC_GFp_simple_method(), EC_GFp_mont_method(), 1190 EC_GF2m_simple_method(), EC_GFp_nist_method(), EC_GFp_nistp224_method() 1191 EC_GFp_nistp256_method(), and EC_GFp_nistp521_method(). 1192 1193 *Billy Bob Brumley* 1194 1195 * Deprecated EC_GROUP_new(), EC_GROUP_method_of(), and EC_POINT_method_of(). 1196 1197 *Billy Bob Brumley* 1198 1199 * Add CAdES-BES signature verification support, mostly derived 1200 from ESSCertIDv2 TS (RFC 5816) contribution by Marek Klein. 1201 1202 *Filipe Raimundo da Silva* 1203 1204 * Add CAdES-BES signature scheme and attributes support (RFC 5126) to CMS API. 1205 1206 *Antonio Iacono* 1207 1208 * Added the AuthEnvelopedData content type structure (RFC 5083) with AES-GCM 1209 parameter (RFC 5084) for the Cryptographic Message Syntax (CMS). 1210 1211 *Jakub Zelenka* 1212 1213 * Deprecated EC_POINT_make_affine() and EC_POINTs_make_affine(). 1214 1215 *Billy Bob Brumley* 1216 1217 * Deprecated EC_GROUP_precompute_mult(), EC_GROUP_have_precompute_mult(), and 1218 EC_KEY_precompute_mult(). 1219 1220 *Billy Bob Brumley* 1221 1222 * Deprecated EC_POINTs_mul(). 1223 1224 *Billy Bob Brumley* 1225 1226 * Removed FIPS_mode() and FIPS_mode_set(). 1227 1228 *Shane Lontis* 1229 1230 * The SSL option SSL_OP_IGNORE_UNEXPECTED_EOF is introduced. 1231 1232 *Dmitry Belyavskiy* 1233 1234 * Deprecated EC_POINT_set_Jprojective_coordinates_GFp() and 1235 EC_POINT_get_Jprojective_coordinates_GFp(). 1236 1237 *Billy Bob Brumley* 1238 1239 * Added OSSL_PARAM_BLD to the public interface. This allows OSSL_PARAM 1240 arrays to be more easily constructed via a series of utility functions. 1241 Create a parameter builder using OSSL_PARAM_BLD_new(), add parameters using 1242 the various push functions and finally convert to a passable OSSL_PARAM 1243 array using OSSL_PARAM_BLD_to_param(). 1244 1245 *Paul Dale* 1246 1247 * The security strength of SHA1 and MD5 based signatures in TLS has been 1248 reduced. 1249 1250 *Kurt Roeckx* 1251 1252 * Added EVP_PKEY_set_type_by_keymgmt(), to initialise an EVP_PKEY to 1253 contain a provider side internal key. 1254 1255 *Richard Levitte* 1256 1257 * ASN1_verify(), ASN1_digest() and ASN1_sign() have been deprecated. 1258 1259 *Richard Levitte* 1260 1261 * Project text documents not yet having a proper file name extension 1262 (`HACKING`, `LICENSE`, `NOTES*`, `README*`, `VERSION`) have been renamed to 1263 `*.md` as far as reasonable, else `*.txt`, for better use with file managers. 1264 1265 *David von Oheimb* 1266 1267 * The main project documents (README, NEWS, CHANGES, INSTALL, SUPPORT) 1268 have been converted to Markdown with the goal to produce documents 1269 which not only look pretty when viewed online in the browser, but 1270 remain well readable inside a plain text editor. 1271 1272 To achieve this goal, a 'minimalistic' Markdown style has been applied 1273 which avoids formatting elements that interfere too much with the 1274 reading flow in the text file. For example, it 1275 1276 * avoids [ATX headings][] and uses [setext headings][] instead 1277 (which works for `<h1>` and `<h2>` headings only). 1278 * avoids [inline links][] and uses [reference links][] instead. 1279 * avoids [fenced code blocks][] and uses [indented code blocks][] instead. 1280 1281 [ATX headings]: https://github.github.com/gfm/#atx-headings 1282 [setext headings]: https://github.github.com/gfm/#setext-headings 1283 [inline links]: https://github.github.com/gfm/#inline-link 1284 [reference links]: https://github.github.com/gfm/#reference-link 1285 [fenced code blocks]: https://github.github.com/gfm/#fenced-code-blocks 1286 [indented code blocks]: https://github.github.com/gfm/#indented-code-blocks 1287 1288 *Matthias St. Pierre* 1289 1290 * The test suite is changed to preserve results of each test recipe. 1291 A new directory test-runs/ with subdirectories named like the 1292 test recipes are created in the build tree for this purpose. 1293 1294 *Richard Levitte* 1295 1296 * Added an implementation of CMP and CRMF (RFC 4210, RFC 4211 RFC 6712). 1297 This adds `crypto/cmp/`, `crpyto/crmf/`, `apps/cmp.c`, and `test/cmp_*`. 1298 See L<openssl-cmp(1)> and L<OSSL_CMP_exec_IR_ses(3)> as starting points. 1299 1300 *David von Oheimb, Martin Peylo* 1301 1302 * Generalized the HTTP client code from `crypto/ocsp/` into `crpyto/http/`. 1303 It supports arbitrary request and response content types, GET redirection, 1304 TLS, connections via HTTP(S) proxies, connections and exchange via 1305 user-defined BIOs (allowing implicit connections), persistent connections, 1306 and timeout checks. See L<OSSL_HTTP_transfer(3)> etc. for details. 1307 The legacy OCSP-focused (and only partly documented) API 1308 is retained for backward compatibility, while most of it is deprecated. 1309 1310 *David von Oheimb* 1311 1312 * Added `util/check-format.pl`, a tool for checking adherence to the 1313 OpenSSL coding style <https://www.openssl.org/policies/codingstyle.html>. 1314 The checks performed are incomplete and yield some false positives. 1315 Still the tool should be useful for detecting most typical glitches. 1316 1317 *David von Oheimb* 1318 1319 * `BIO_do_connect()` and `BIO_do_handshake()` have been extended: 1320 If domain name resolution yields multiple IP addresses all of them are tried 1321 after `connect()` failures. 1322 1323 *David von Oheimb* 1324 1325 * All of the low level RSA functions have been deprecated. 1326 1327 *Paul Dale* 1328 1329 * X509 certificates signed using SHA1 are no longer allowed at security 1330 level 1 and above. 1331 1332 *Kurt Roeckx* 1333 1334 * The command line utilities dhparam, dsa, gendsa and dsaparam have been 1335 modified to use PKEY APIs. These commands are now in maintenance mode 1336 and no new features will be added to them. 1337 1338 *Paul Dale* 1339 1340 * The command line utility rsautl has been deprecated. 1341 1342 *Paul Dale* 1343 1344 * The command line utilities genrsa and rsa have been modified to use PKEY 1345 APIs. They now write PKCS#8 keys by default. These commands are now in 1346 maintenance mode and no new features will be added to them. 1347 1348 *Paul Dale* 1349 1350 * All of the low level DH functions have been deprecated. 1351 1352 *Paul Dale and Matt Caswell* 1353 1354 * All of the low level DSA functions have been deprecated. 1355 1356 *Paul Dale* 1357 1358 * Reworked the treatment of EC EVP_PKEYs with the SM2 curve to 1359 automatically become EVP_PKEY_SM2 rather than EVP_PKEY_EC. 1360 1361 *Richard Levitte* 1362 1363 * Deprecated low level ECDH and ECDSA functions. 1364 1365 *Paul Dale* 1366 1367 * Deprecated EVP_PKEY_decrypt_old() and EVP_PKEY_encrypt_old(). 1368 1369 *Richard Levitte* 1370 1371 * Enhanced the documentation of EVP_PKEY_get_size(), EVP_PKEY_get_bits() 1372 and EVP_PKEY_get_security_bits(). Especially EVP_PKEY_get_size() needed 1373 a new formulation to include all the things it can be used for, 1374 as well as words of caution. 1375 1376 *Richard Levitte* 1377 1378 * The SSL_CTX_set_tlsext_ticket_key_cb(3) function has been deprecated. 1379 1380 *Paul Dale* 1381 1382 * All of the low level HMAC functions have been deprecated. 1383 1384 *Paul Dale and David von Oheimb* 1385 1386 * Over two thousand fixes were made to the documentation, including: 1387 - Common options (such as -rand/-writerand, TLS version control, etc) 1388 were refactored and point to newly-enhanced descriptions in openssl.pod. 1389 - Added style conformance for all options (with help from Richard Levitte), 1390 documented all reported missing options, added a CI build to check 1391 that all options are documented and that no unimplemented options 1392 are documented. 1393 - Documented some internals, such as all use of environment variables. 1394 - Addressed all internal broken L<> references. 1395 1396 *Rich Salz* 1397 1398 * All of the low level CMAC functions have been deprecated. 1399 1400 *Paul Dale* 1401 1402 * The low-level MD2, MD4, MD5, MDC2, RIPEMD160 and Whirlpool digest 1403 functions have been deprecated. 1404 1405 *Paul Dale and David von Oheimb* 1406 1407 * Corrected the documentation of the return values from the `EVP_DigestSign*` 1408 set of functions. The documentation mentioned negative values for some 1409 errors, but this was never the case, so the mention of negative values 1410 was removed. 1411 1412 Code that followed the documentation and thereby check with something 1413 like `EVP_DigestSignInit(...) <= 0` will continue to work undisturbed. 1414 1415 *Richard Levitte* 1416 1417 * All of the low level cipher functions have been deprecated. 1418 1419 *Matt Caswell and Paul Dale* 1420 1421 * Removed include/openssl/opensslconf.h.in and replaced it with 1422 include/openssl/configuration.h.in, which differs in not including 1423 <openssl/macros.h>. A short header include/openssl/opensslconf.h 1424 was added to include both. 1425 1426 This allows internal hacks where one might need to modify the set 1427 of configured macros, for example this if deprecated symbols are 1428 still supposed to be available internally: 1429 1430 #include <openssl/configuration.h> 1431 1432 #undef OPENSSL_NO_DEPRECATED 1433 #define OPENSSL_SUPPRESS_DEPRECATED 1434 1435 #include <openssl/macros.h> 1436 1437 This should not be used by applications that use the exported 1438 symbols, as that will lead to linking errors. 1439 1440 *Richard Levitte* 1441 1442 * Fixed an overflow bug in the x64_64 Montgomery squaring procedure 1443 used in exponentiation with 512-bit moduli. No EC algorithms are 1444 affected. Analysis suggests that attacks against 2-prime RSA1024, 1445 3-prime RSA1536, and DSA1024 as a result of this defect would be very 1446 difficult to perform and are not believed likely. Attacks against DH512 1447 are considered just feasible. However, for an attack the target would 1448 have to re-use the DH512 private key, which is not recommended anyway. 1449 Also applications directly using the low-level API BN_mod_exp may be 1450 affected if they use BN_FLG_CONSTTIME. 1451 ([CVE-2019-1551]) 1452 1453 *Andy Polyakov* 1454 1455 * Most memory-debug features have been deprecated, and the functionality 1456 replaced with no-ops. 1457 1458 *Rich Salz* 1459 1460 * Added documentation for the STACK API. 1461 1462 *Rich Salz* 1463 1464 * Introduced a new method type and API, OSSL_ENCODER, to represent 1465 generic encoders. These do the same sort of job that PEM writers 1466 and d2i functions do, but with support for methods supplied by 1467 providers, and the possibility for providers to support other 1468 formats as well. 1469 1470 *Richard Levitte* 1471 1472 * Introduced a new method type and API, OSSL_DECODER, to represent 1473 generic decoders. These do the same sort of job that PEM readers 1474 and i2d functions do, but with support for methods supplied by 1475 providers, and the possibility for providers to support other 1476 formats as well. 1477 1478 *Richard Levitte* 1479 1480 * Added a .pragma directive to the syntax of configuration files, to 1481 allow varying behavior in a supported and predictable manner. 1482 Currently added pragma: 1483 1484 .pragma dollarid:on 1485 1486 This allows dollar signs to be a keyword character unless it's 1487 followed by a opening brace or parenthesis. This is useful for 1488 platforms where dollar signs are commonly used in names, such as 1489 volume names and system directory names on VMS. 1490 1491 *Richard Levitte* 1492 1493 * Added functionality to create an EVP_PKEY from user data. 1494 1495 *Richard Levitte* 1496 1497 * Change the interpretation of the '--api' configuration option to 1498 mean that this is a desired API compatibility level with no 1499 further meaning. The previous interpretation, that this would 1500 also mean to remove all deprecated symbols up to and including 1501 the given version, no requires that 'no-deprecated' is also used 1502 in the configuration. 1503 1504 When building applications, the desired API compatibility level 1505 can be set with the OPENSSL_API_COMPAT macro like before. For 1506 API compatibility version below 3.0, the old style numerical 1507 value is valid as before, such as -DOPENSSL_API_COMPAT=0x10100000L. 1508 For version 3.0 and on, the value is expected to be the decimal 1509 value calculated from the major and minor version like this: 1510 1511 MAJOR * 10000 + MINOR * 100 1512 1513 Examples: 1514 1515 -DOPENSSL_API_COMPAT=30000 For 3.0 1516 -DOPENSSL_API_COMPAT=30200 For 3.2 1517 1518 To hide declarations that are deprecated up to and including the 1519 given API compatibility level, -DOPENSSL_NO_DEPRECATED must be 1520 given when building the application as well. 1521 1522 *Richard Levitte* 1523 1524 * Added the X509_LOOKUP_METHOD called X509_LOOKUP_store, to allow 1525 access to certificate and CRL stores via URIs and OSSL_STORE 1526 loaders. 1527 1528 This adds the following functions: 1529 1530 - X509_LOOKUP_store() 1531 - X509_STORE_load_file() 1532 - X509_STORE_load_path() 1533 - X509_STORE_load_store() 1534 - SSL_add_store_cert_subjects_to_stack() 1535 - SSL_CTX_set_default_verify_store() 1536 - SSL_CTX_load_verify_file() 1537 - SSL_CTX_load_verify_dir() 1538 - SSL_CTX_load_verify_store() 1539 1540 *Richard Levitte* 1541 1542 * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY. 1543 The presence of this system service is determined at run-time. 1544 1545 *Richard Levitte* 1546 1547 * Added functionality to create an EVP_PKEY context based on data 1548 for methods from providers. This takes an algorithm name and a 1549 property query string and simply stores them, with the intent 1550 that any operation that uses this context will use those strings 1551 to fetch the needed methods implicitly, thereby making the port 1552 of application written for pre-3.0 OpenSSL easier. 1553 1554 *Richard Levitte* 1555 1556 * The undocumented function NCONF_WIN32() has been deprecated; for 1557 conversion details see the HISTORY section of doc/man5/config.pod 1558 1559 *Rich Salz* 1560 1561 * Introduced the new functions EVP_DigestSignInit_ex() and 1562 EVP_DigestVerifyInit_ex(). The macros EVP_DigestSignUpdate() and 1563 EVP_DigestVerifyUpdate() have been converted to functions. See the man 1564 pages for further details. 1565 1566 *Matt Caswell* 1567 1568 * Over two thousand fixes were made to the documentation, including: 1569 adding missing command flags, better style conformance, documentation 1570 of internals, etc. 1571 1572 *Rich Salz, Richard Levitte* 1573 1574 * s390x assembly pack: add hardware-support for P-256, P-384, P-521, 1575 X25519, X448, Ed25519 and Ed448. 1576 1577 *Patrick Steuer* 1578 1579 * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just 1580 the first value. 1581 1582 *Jon Spillett* 1583 1584 * Deprecated the public definition of `ERR_STATE` as well as the function 1585 `ERR_get_state()`. This is done in preparation of making `ERR_STATE` an 1586 opaque type. 1587 1588 *Richard Levitte* 1589 1590 * Added ERR functionality to give callers access to the stored function 1591 names that have replaced the older function code based functions. 1592 1593 New functions are ERR_peek_error_func(), ERR_peek_last_error_func(), 1594 ERR_peek_error_data(), ERR_peek_last_error_data(), ERR_get_error_all(), 1595 ERR_peek_error_all() and ERR_peek_last_error_all(). 1596 1597 Deprecate ERR functions ERR_get_error_line(), ERR_get_error_line_data(), 1598 ERR_peek_error_line_data(), ERR_peek_last_error_line_data() and 1599 ERR_func_error_string(). 1600 1601 *Richard Levitte* 1602 1603 * Extended testing to be verbose for failing tests only. The make variables 1604 VERBOSE_FAILURE or VF can be used to enable this: 1605 1606 $ make VF=1 test # Unix 1607 $ mms /macro=(VF=1) test ! OpenVMS 1608 $ nmake VF=1 test # Windows 1609 1610 *Richard Levitte* 1611 1612 * Added the `-copy_extensions` option to the `x509` command for use with 1613 `-req` and `-x509toreq`. When given with the `copy` or `copyall` argument, 1614 all extensions in the request are copied to the certificate or vice versa. 1615 1616 *David von Oheimb*, *Kirill Stefanenkov <kirill_stefanenkov@rambler.ru>* 1617 1618 * Added the `-copy_extensions` option to the `req` command for use with 1619 `-x509`. When given with the `copy` or `copyall` argument, 1620 all extensions in the certification request are copied to the certificate. 1621 1622 *David von Oheimb* 1623 1624 * The `x509`, `req`, and `ca` commands now make sure that X.509v3 certificates 1625 they generate are by default RFC 5280 compliant in the following sense: 1626 There is a subjectKeyIdentifier extension with a hash value of the public key 1627 and for not self-signed certs there is an authorityKeyIdentifier extension 1628 with a keyIdentifier field or issuer information identifying the signing key. 1629 This is done unless some configuration overrides the new default behavior, 1630 such as `subjectKeyIdentifier = none` and `authorityKeyIdentifier = none`. 1631 1632 *David von Oheimb* 1633 1634 * Added several checks to `X509_verify_cert()` according to requirements in 1635 RFC 5280 in case `X509_V_FLAG_X509_STRICT` is set 1636 (which may be done by using the CLI option `-x509_strict`): 1637 * The basicConstraints of CA certificates must be marked critical. 1638 * CA certificates must explicitly include the keyUsage extension. 1639 * If a pathlenConstraint is given the key usage keyCertSign must be allowed. 1640 * The issuer name of any certificate must not be empty. 1641 * The subject name of CA certs, certs with keyUsage crlSign, 1642 and certs without subjectAlternativeName must not be empty. 1643 * If a subjectAlternativeName extension is given it must not be empty. 1644 * The signatureAlgorithm field and the cert signature must be consistent. 1645 * Any given authorityKeyIdentifier and any given subjectKeyIdentifier 1646 must not be marked critical. 1647 * The authorityKeyIdentifier must be given for X.509v3 certs 1648 unless they are self-signed. 1649 * The subjectKeyIdentifier must be given for all X.509v3 CA certs. 1650 1651 *David von Oheimb* 1652 1653 * Certificate verification using `X509_verify_cert()` meanwhile rejects EC keys 1654 with explicit curve parameters (specifiedCurve) as required by RFC 5480. 1655 1656 *Tomáš Mráz* 1657 1658 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 1659 used even when parsing explicit parameters, when loading a encoded key 1660 or calling `EC_GROUP_new_from_ecpkparameters()`/ 1661 `EC_GROUP_new_from_ecparameters()`. 1662 This prevents bypass of security hardening and performance gains, 1663 especially for curves with specialized EC_METHODs. 1664 By default, if a key encoded with explicit parameters is loaded and later 1665 encoded, the output is still encoded with explicit parameters, even if 1666 internally a "named" EC_GROUP is used for computation. 1667 1668 *Nicola Tuveri* 1669 1670 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 1671 this change, EC_GROUP_set_generator would accept order and/or cofactor as 1672 NULL. After this change, only the cofactor parameter can be NULL. It also 1673 does some minimal sanity checks on the passed order. 1674 ([CVE-2019-1547]) 1675 1676 *Billy Bob Brumley* 1677 1678 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 1679 An attack is simple, if the first CMS_recipientInfo is valid but the 1680 second CMS_recipientInfo is chosen ciphertext. If the second 1681 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 1682 encryption key will be replaced by garbage, and the message cannot be 1683 decoded, but if the RSA decryption fails, the correct encryption key is 1684 used and the recipient will not notice the attack. 1685 As a work around for this potential attack the length of the decrypted 1686 key must be equal to the cipher default key length, in case the 1687 certifiate is not given and all recipientInfo are tried out. 1688 The old behaviour can be re-enabled in the CMS code by setting the 1689 CMS_DEBUG_DECRYPT flag. 1690 1691 *Bernd Edlinger* 1692 1693 * Early start up entropy quality from the DEVRANDOM seed source has been 1694 improved for older Linux systems. The RAND subsystem will wait for 1695 /dev/random to be producing output before seeding from /dev/urandom. 1696 The seeded state is stored for future library initialisations using 1697 a system global shared memory segment. The shared memory identifier 1698 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to 1699 the desired value. The default identifier is 114. 1700 1701 *Paul Dale* 1702 1703 * Revised BN_generate_prime_ex to not avoid factors 2..17863 in p-1 1704 when primes for RSA keys are computed. 1705 Since we previously always generated primes == 2 (mod 3) for RSA keys, 1706 the 2-prime and 3-prime RSA modules were easy to distinguish, since 1707 `N = p*q = 1 (mod 3)`, but `N = p*q*r = 2 (mod 3)`. Therefore fingerprinting 1708 2-prime vs. 3-prime RSA keys was possible by computing N mod 3. 1709 This avoids possible fingerprinting of newly generated RSA modules. 1710 1711 *Bernd Edlinger* 1712 1713 * Correct the extended master secret constant on EBCDIC systems. Without this 1714 fix TLS connections between an EBCDIC system and a non-EBCDIC system that 1715 negotiate EMS will fail. Unfortunately this also means that TLS connections 1716 between EBCDIC systems with this fix, and EBCDIC systems without this 1717 fix will fail if they negotiate EMS. 1718 1719 *Matt Caswell* 1720 1721 * Changed the library initialisation so that the config file is now loaded 1722 by default. This was already the case for libssl. It now occurs for both 1723 libcrypto and libssl. Use the OPENSSL_INIT_NO_LOAD_CONFIG option to 1724 `OPENSSL_init_crypto()` to suppress automatic loading of a config file. 1725 1726 *Matt Caswell* 1727 1728 * Introduced new error raising macros, `ERR_raise()` and `ERR_raise_data()`, 1729 where the former acts as a replacement for `ERR_put_error()`, and the 1730 latter replaces the combination `ERR_put_error()` + `ERR_add_error_data()`. 1731 `ERR_raise_data()` adds more flexibility by taking a format string and 1732 an arbitrary number of arguments following it, to be processed with 1733 `BIO_snprintf()`. 1734 1735 *Richard Levitte* 1736 1737 * Introduced a new function, `OSSL_PROVIDER_available()`, which can be used 1738 to check if a named provider is loaded and available. When called, it 1739 will also activate all fallback providers if such are still present. 1740 1741 *Richard Levitte* 1742 1743 * Enforce a minimum DH modulus size of 512 bits. 1744 1745 *Bernd Edlinger* 1746 1747 * Changed DH parameters to generate the order q subgroup instead of 2q. 1748 Previously generated DH parameters are still accepted by DH_check 1749 but DH_generate_key works around that by clearing bit 0 of the 1750 private key for those. This avoids leaking bit 0 of the private key. 1751 1752 *Bernd Edlinger* 1753 1754 * Significantly reduce secure memory usage by the randomness pools. 1755 1756 *Paul Dale* 1757 1758 * `{CRYPTO,OPENSSL}_mem_debug_{push,pop}` are now no-ops and have been 1759 deprecated. 1760 1761 *Rich Salz* 1762 1763 * A new type, EVP_KEYEXCH, has been introduced to represent key exchange 1764 algorithms. An implementation of a key exchange algorithm can be obtained 1765 by using the function EVP_KEYEXCH_fetch(). An EVP_KEYEXCH algorithm can be 1766 used in a call to EVP_PKEY_derive_init_ex() which works in a similar way to 1767 the older EVP_PKEY_derive_init() function. See the man pages for the new 1768 functions for further details. 1769 1770 *Matt Caswell* 1771 1772 * The EVP_PKEY_CTX_set_dh_pad() macro has now been converted to a function. 1773 1774 *Matt Caswell* 1775 1776 * Removed the function names from error messages and deprecated the 1777 xxx_F_xxx define's. 1778 1779 *Richard Levitte* 1780 1781 * Removed NextStep support and the macro OPENSSL_UNISTD 1782 1783 *Rich Salz* 1784 1785 * Removed DES_check_key. Also removed OPENSSL_IMPLEMENT_GLOBAL, 1786 OPENSSL_GLOBAL_REF, OPENSSL_DECLARE_GLOBAL. 1787 Also removed "export var as function" capability; we do not export 1788 variables, only functions. 1789 1790 *Rich Salz* 1791 1792 * RC5_32_set_key has been changed to return an int type, with 0 indicating 1793 an error and 1 indicating success. In previous versions of OpenSSL this 1794 was a void type. If a key was set longer than the maximum possible this 1795 would crash. 1796 1797 *Matt Caswell* 1798 1799 * Support SM2 signing and verification schemes with X509 certificate. 1800 1801 *Paul Yang* 1802 1803 * Use SHA256 as the default digest for TS query in the `ts` app. 1804 1805 *Tomáš Mráz* 1806 1807 * Change PBKDF2 to conform to SP800-132 instead of the older PKCS5 RFC2898. 1808 1809 *Shane Lontis* 1810 1811 * Default cipher lists/suites are now available via a function, the 1812 #defines are deprecated. 1813 1814 *Todd Short* 1815 1816 * Add target VC-WIN32-UWP, VC-WIN64A-UWP, VC-WIN32-ARM-UWP and 1817 VC-WIN64-ARM-UWP in Windows OneCore target for making building libraries 1818 for Windows Store apps easier. Also, the "no-uplink" option has been added. 1819 1820 *Kenji Mouri* 1821 1822 * Join the directories crypto/x509 and crypto/x509v3 1823 1824 *Richard Levitte* 1825 1826 * Added command 'openssl kdf' that uses the EVP_KDF API. 1827 1828 *Shane Lontis* 1829 1830 * Added command 'openssl mac' that uses the EVP_MAC API. 1831 1832 *Shane Lontis* 1833 1834 * Added OPENSSL_info() to get diverse built-in OpenSSL data, such 1835 as default directories. Also added the command 'openssl info' 1836 for scripting purposes. 1837 1838 *Richard Levitte* 1839 1840 * The functions AES_ige_encrypt() and AES_bi_ige_encrypt() have been 1841 deprecated. 1842 1843 *Matt Caswell* 1844 1845 * Add prediction resistance to the DRBG reseeding process. 1846 1847 *Paul Dale* 1848 1849 * Limit the number of blocks in a data unit for AES-XTS to 2^20 as 1850 mandated by IEEE Std 1619-2018. 1851 1852 *Paul Dale* 1853 1854 * Added newline escaping functionality to a filename when using openssl dgst. 1855 This output format is to replicate the output format found in the `*sum` 1856 checksum programs. This aims to preserve backward compatibility. 1857 1858 *Matt Eaton, Richard Levitte, and Paul Dale* 1859 1860 * Removed the heartbeat message in DTLS feature, as it has very 1861 little usage and doesn't seem to fulfill a valuable purpose. 1862 The configuration option is now deprecated. 1863 1864 *Richard Levitte* 1865 1866 * Changed the output of 'openssl {digestname} < file' to display the 1867 digest name in its output. 1868 1869 *Richard Levitte* 1870 1871 * Added a new generic trace API which provides support for enabling 1872 instrumentation through trace output. 1873 1874 *Richard Levitte & Matthias St. Pierre* 1875 1876 * Added build tests for C++. These are generated files that only do one 1877 thing, to include one public OpenSSL head file each. This tests that 1878 the public header files can be usefully included in a C++ application. 1879 1880 This test isn't enabled by default. It can be enabled with the option 1881 'enable-buildtest-c++'. 1882 1883 *Richard Levitte* 1884 1885 * Added KB KDF (EVP_KDF_KB) to EVP_KDF. 1886 1887 *Robbie Harwood* 1888 1889 * Added SSH KDF (EVP_KDF_SSHKDF) and KRB5 KDF (EVP_KDF_KRB5KDF) to EVP_KDF. 1890 1891 *Simo Sorce* 1892 1893 * Added Single Step KDF (EVP_KDF_SS), X963 KDF, and X942 KDF to EVP_KDF. 1894 1895 *Shane Lontis* 1896 1897 * Added KMAC to EVP_MAC. 1898 1899 *Shane Lontis* 1900 1901 * Added property based algorithm implementation selection framework to 1902 the core. 1903 1904 *Paul Dale* 1905 1906 * Added SCA hardening for modular field inversion in EC_GROUP through 1907 a new dedicated field_inv() pointer in EC_METHOD. 1908 This also addresses a leakage affecting conversions from projective 1909 to affine coordinates. 1910 1911 *Billy Bob Brumley, Nicola Tuveri* 1912 1913 * Added EVP_KDF, an EVP layer KDF API, to simplify adding KDF and PRF 1914 implementations. This includes an EVP_PKEY to EVP_KDF bridge for 1915 those algorithms that were already supported through the EVP_PKEY API 1916 (scrypt, TLS1 PRF and HKDF). The low-level KDF functions for PBKDF2 1917 and scrypt are now wrappers that call EVP_KDF. 1918 1919 *David Makepeace* 1920 1921 * Build devcrypto engine as a dynamic engine. 1922 1923 *Eneas U de Queiroz* 1924 1925 * Add keyed BLAKE2 to EVP_MAC. 1926 1927 *Antoine Salon* 1928 1929 * Fix a bug in the computation of the endpoint-pair shared secret used 1930 by DTLS over SCTP. This breaks interoperability with older versions 1931 of OpenSSL like OpenSSL 1.1.0 and OpenSSL 1.0.2. There is a runtime 1932 switch SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG (off by default) enabling 1933 interoperability with such broken implementations. However, enabling 1934 this switch breaks interoperability with correct implementations. 1935 1936 * Fix a use after free bug in d2i_X509_PUBKEY when overwriting a 1937 re-used X509_PUBKEY object if the second PUBKEY is malformed. 1938 1939 *Bernd Edlinger* 1940 1941 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 1942 1943 *Richard Levitte* 1944 1945 * Changed the license to the Apache License v2.0. 1946 1947 *Richard Levitte* 1948 1949 * Switch to a new version scheme using three numbers MAJOR.MINOR.PATCH. 1950 1951 - Major releases (indicated by incrementing the MAJOR release number) 1952 may introduce incompatible API/ABI changes. 1953 - Minor releases (indicated by incrementing the MINOR release number) 1954 may introduce new features but retain API/ABI compatibility. 1955 - Patch releases (indicated by incrementing the PATCH number) 1956 are intended for bug fixes and other improvements of existing 1957 features only (like improving performance or adding documentation) 1958 and retain API/ABI compatibility. 1959 1960 *Richard Levitte* 1961 1962 * Add support for RFC5297 SIV mode (siv128), including AES-SIV. 1963 1964 *Todd Short* 1965 1966 * Remove the 'dist' target and add a tarball building script. The 1967 'dist' target has fallen out of use, and it shouldn't be 1968 necessary to configure just to create a source distribution. 1969 1970 *Richard Levitte* 1971 1972 * Recreate the OS390-Unix config target. It no longer relies on a 1973 special script like it did for OpenSSL pre-1.1.0. 1974 1975 *Richard Levitte* 1976 1977 * Instead of having the source directories listed in Configure, add 1978 a 'build.info' keyword SUBDIRS to indicate what sub-directories to 1979 look into. 1980 1981 *Richard Levitte* 1982 1983 * Add GMAC to EVP_MAC. 1984 1985 *Paul Dale* 1986 1987 * Ported the HMAC, CMAC and SipHash EVP_PKEY_METHODs to EVP_MAC. 1988 1989 *Richard Levitte* 1990 1991 * Added EVP_MAC, an EVP layer MAC API, to simplify adding MAC 1992 implementations. This includes a generic EVP_PKEY to EVP_MAC bridge, 1993 to facilitate the continued use of MACs through raw private keys in 1994 functionality such as `EVP_DigestSign*` and `EVP_DigestVerify*`. 1995 1996 *Richard Levitte* 1997 1998 * Deprecate ECDH_KDF_X9_62(). 1999 2000 *Antoine Salon* 2001 2002 * Added EVP_PKEY_ECDH_KDF_X9_63 and ecdh_KDF_X9_63() as replacements for 2003 the EVP_PKEY_ECDH_KDF_X9_62 KDF type and ECDH_KDF_X9_62(). The old names 2004 are retained for backwards compatibility. 2005 2006 *Antoine Salon* 2007 2008 * AES-XTS mode now enforces that its two keys are different to mitigate 2009 the attacked described in "Efficient Instantiations of Tweakable 2010 Blockciphers and Refinements to Modes OCB and PMAC" by Phillip Rogaway. 2011 Details of this attack can be obtained from: 2012 <http://web.cs.ucdavis.edu/%7Erogaway/papers/offsets.pdf> 2013 2014 *Paul Dale* 2015 2016 * Rename the object files, i.e. give them other names than in previous 2017 versions. Their names now include the name of the final product, as 2018 well as its type mnemonic (bin, lib, shlib). 2019 2020 *Richard Levitte* 2021 2022 * Added new option for 'openssl list', '-objects', which will display the 2023 list of built in objects, i.e. OIDs with names. 2024 2025 *Richard Levitte* 2026 2027 * Added the options `-crl_lastupdate` and `-crl_nextupdate` to `openssl ca`, 2028 allowing the `lastUpdate` and `nextUpdate` fields in the generated CRL to 2029 be set explicitly. 2030 2031 *Chris Novakovic* 2032 2033 * Added support for Linux Kernel TLS data-path. The Linux Kernel data-path 2034 improves application performance by removing data copies and providing 2035 applications with zero-copy system calls such as sendfile and splice. 2036 2037 *Boris Pismenny* 2038 2039 * The SSL option SSL_OP_CLEANSE_PLAINTEXT is introduced. 2040 2041 *Martin Elshuber* 2042 2043 * `PKCS12_parse` now maintains the order of the parsed certificates 2044 when outputting them via `*ca` (rather than reversing it). 2045 2046 *David von Oheimb* 2047 2048 * Deprecated pthread fork support methods. 2049 2050 *Randall S. Becker* 2051 2052 * Added support for FFDHE key exchange in TLS 1.3. 2053 2054 *Raja Ashok* 2055 2056 * Added a new concept for OpenSSL plugability: providers. This 2057 functionality is designed to replace the ENGINE API and ENGINE 2058 implementations, and to be much more dynamic, allowing provider 2059 authors to introduce new algorithms among other things, as long as 2060 there's an API that supports the algorithm type. 2061 2062 With this concept comes a new core API for interaction between 2063 libcrypto and provider implementations. Public libcrypto functions 2064 that want to use providers do so through this core API. 2065 2066 The main documentation for this core API is found in 2067 doc/man7/provider.pod, doc/man7/provider-base.pod, and they in turn 2068 refer to other manuals describing the API specific for supported 2069 algorithm types (also called operations). 2070 2071 *The OpenSSL team* 2072 2073OpenSSL 1.1.1 2074------------- 2075 2076### Changes between 1.1.1l and 1.1.1m [xx XXX xxxx] 2077 2078 * Avoid loading of a dynamic engine twice. 2079 2080 *Bernd Edlinger* 2081 2082 * Prioritise DANE TLSA issuer certs over peer certs 2083 2084 *Viktor Dukhovni* 2085 2086 * Fixed random API for MacOS prior to 10.12 2087 2088 These MacOS versions don't support the CommonCrypto APIs 2089 2090 *Lenny Primak* 2091 2092### Changes between 1.1.1k and 1.1.1l [24 Aug 2021] 2093 2094 * Fixed an SM2 Decryption Buffer Overflow. 2095 2096 In order to decrypt SM2 encrypted data an application is expected to 2097 call the API function EVP_PKEY_decrypt(). Typically an application will 2098 call this function twice. The first time, on entry, the "out" parameter 2099 can be NULL and, on exit, the "outlen" parameter is populated with the 2100 buffer size required to hold the decrypted plaintext. The application 2101 can then allocate a sufficiently sized buffer and call EVP_PKEY_decrypt() 2102 again, but this time passing a non-NULL value for the "out" parameter. 2103 2104 A bug in the implementation of the SM2 decryption code means that the 2105 calculation of the buffer size required to hold the plaintext returned 2106 by the first call to EVP_PKEY_decrypt() can be smaller than the actual 2107 size required by the second call. This can lead to a buffer overflow 2108 when EVP_PKEY_decrypt() is called by the application a second time with 2109 a buffer that is too small. 2110 2111 A malicious attacker who is able present SM2 content for decryption to 2112 an application could cause attacker chosen data to overflow the buffer 2113 by up to a maximum of 62 bytes altering the contents of other data held 2114 after the buffer, possibly changing application behaviour or causing 2115 the application to crash. The location of the buffer is application 2116 dependent but is typically heap allocated. 2117 ([CVE-2021-3711]) 2118 2119 *Matt Caswell* 2120 2121 * Fixed various read buffer overruns processing ASN.1 strings 2122 2123 ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING 2124 structure which contains a buffer holding the string data and a field 2125 holding the buffer length. This contrasts with normal C strings which 2126 are repesented as a buffer for the string data which is terminated 2127 with a NUL (0) byte. 2128 2129 Although not a strict requirement, ASN.1 strings that are parsed using 2130 OpenSSL's own "d2i" functions (and other similar parsing functions) as 2131 well as any string whose value has been set with the ASN1_STRING_set() 2132 function will additionally NUL terminate the byte array in the 2133 ASN1_STRING structure. 2134 2135 However, it is possible for applications to directly construct valid 2136 ASN1_STRING structures which do not NUL terminate the byte array by 2137 directly setting the "data" and "length" fields in the ASN1_STRING 2138 array. This can also happen by using the ASN1_STRING_set0() function. 2139 2140 Numerous OpenSSL functions that print ASN.1 data have been found to 2141 assume that the ASN1_STRING byte array will be NUL terminated, even 2142 though this is not guaranteed for strings that have been directly 2143 constructed. Where an application requests an ASN.1 structure to be 2144 printed, and where that ASN.1 structure contains ASN1_STRINGs that have 2145 been directly constructed by the application without NUL terminating 2146 the "data" field, then a read buffer overrun can occur. 2147 2148 The same thing can also occur during name constraints processing 2149 of certificates (for example if a certificate has been directly 2150 constructed by the application instead of loading it via the OpenSSL 2151 parsing functions, and the certificate contains non NUL terminated 2152 ASN1_STRING structures). It can also occur in the X509_get1_email(), 2153 X509_REQ_get1_email() and X509_get1_ocsp() functions. 2154 2155 If a malicious actor can cause an application to directly construct an 2156 ASN1_STRING and then process it through one of the affected OpenSSL 2157 functions then this issue could be hit. This might result in a crash 2158 (causing a Denial of Service attack). It could also result in the 2159 disclosure of private memory contents (such as private keys, or 2160 sensitive plaintext). 2161 ([CVE-2021-3712]) 2162 2163 *Matt Caswell* 2164 2165### Changes between 1.1.1j and 1.1.1k [25 Mar 2021] 2166 2167 * Fixed a problem with verifying a certificate chain when using the 2168 X509_V_FLAG_X509_STRICT flag. This flag enables additional security checks of 2169 the certificates present in a certificate chain. It is not set by default. 2170 2171 Starting from OpenSSL version 1.1.1h a check to disallow certificates in 2172 the chain that have explicitly encoded elliptic curve parameters was added 2173 as an additional strict check. 2174 2175 An error in the implementation of this check meant that the result of a 2176 previous check to confirm that certificates in the chain are valid CA 2177 certificates was overwritten. This effectively bypasses the check 2178 that non-CA certificates must not be able to issue other certificates. 2179 2180 If a "purpose" has been configured then there is a subsequent opportunity 2181 for checks that the certificate is a valid CA. All of the named "purpose" 2182 values implemented in libcrypto perform this check. Therefore, where 2183 a purpose is set the certificate chain will still be rejected even when the 2184 strict flag has been used. A purpose is set by default in libssl client and 2185 server certificate verification routines, but it can be overridden or 2186 removed by an application. 2187 2188 In order to be affected, an application must explicitly set the 2189 X509_V_FLAG_X509_STRICT verification flag and either not set a purpose 2190 for the certificate verification or, in the case of TLS client or server 2191 applications, override the default purpose. 2192 ([CVE-2021-3450]) 2193 2194 *Tomáš Mráz* 2195 2196 * Fixed an issue where an OpenSSL TLS server may crash if sent a maliciously 2197 crafted renegotiation ClientHello message from a client. If a TLSv1.2 2198 renegotiation ClientHello omits the signature_algorithms extension (where it 2199 was present in the initial ClientHello), but includes a 2200 signature_algorithms_cert extension then a NULL pointer dereference will 2201 result, leading to a crash and a denial of service attack. 2202 2203 A server is only vulnerable if it has TLSv1.2 and renegotiation enabled 2204 (which is the default configuration). OpenSSL TLS clients are not impacted by 2205 this issue. 2206 ([CVE-2021-3449]) 2207 2208 *Peter Kästle and Samuel Sapalski* 2209 2210### Changes between 1.1.1i and 1.1.1j [16 Feb 2021] 2211 2212 * Fixed the X509_issuer_and_serial_hash() function. It attempts to 2213 create a unique hash value based on the issuer and serial number data 2214 contained within an X509 certificate. However it was failing to correctly 2215 handle any errors that may occur while parsing the issuer field (which might 2216 occur if the issuer field is maliciously constructed). This may subsequently 2217 result in a NULL pointer deref and a crash leading to a potential denial of 2218 service attack. 2219 ([CVE-2021-23841]) 2220 2221 *Matt Caswell* 2222 2223 * Fixed the RSA_padding_check_SSLv23() function and the RSA_SSLV23_PADDING 2224 padding mode to correctly check for rollback attacks. This is considered a 2225 bug in OpenSSL 1.1.1 because it does not support SSLv2. In 1.0.2 this is 2226 CVE-2021-23839. 2227 2228 *Matt Caswell* 2229 2230 Fixed the EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate 2231 functions. Previously they could overflow the output length argument in some 2232 cases where the input length is close to the maximum permissable length for 2233 an integer on the platform. In such cases the return value from the function 2234 call would be 1 (indicating success), but the output length value would be 2235 negative. This could cause applications to behave incorrectly or crash. 2236 ([CVE-2021-23840]) 2237 2238 *Matt Caswell* 2239 2240 * Fixed SRP_Calc_client_key so that it runs in constant time. The previous 2241 implementation called BN_mod_exp without setting BN_FLG_CONSTTIME. This 2242 could be exploited in a side channel attack to recover the password. Since 2243 the attack is local host only this is outside of the current OpenSSL 2244 threat model and therefore no CVE is assigned. 2245 2246 Thanks to Mohammed Sabt and Daniel De Almeida Braga for reporting this 2247 issue. 2248 2249 *Matt Caswell* 2250 2251### Changes between 1.1.1h and 1.1.1i [8 Dec 2020] 2252 2253 * Fixed NULL pointer deref in the GENERAL_NAME_cmp function 2254 This function could crash if both GENERAL_NAMEs contain an EDIPARTYNAME. 2255 If an attacker can control both items being compared then this could lead 2256 to a possible denial of service attack. OpenSSL itself uses the 2257 GENERAL_NAME_cmp function for two purposes: 2258 1) Comparing CRL distribution point names between an available CRL and a 2259 CRL distribution point embedded in an X509 certificate 2260 2) When verifying that a timestamp response token signer matches the 2261 timestamp authority name (exposed via the API functions 2262 TS_RESP_verify_response and TS_RESP_verify_token) 2263 ([CVE-2020-1971]) 2264 2265 *Matt Caswell* 2266 2267### Changes between 1.1.1g and 1.1.1h [22 Sep 2020] 2268 2269 * Certificates with explicit curve parameters are now disallowed in 2270 verification chains if the X509_V_FLAG_X509_STRICT flag is used. 2271 2272 *Tomáš Mráz* 2273 2274 * The 'MinProtocol' and 'MaxProtocol' configuration commands now silently 2275 ignore TLS protocol version bounds when configuring DTLS-based contexts, and 2276 conversely, silently ignore DTLS protocol version bounds when configuring 2277 TLS-based contexts. The commands can be repeated to set bounds of both 2278 types. The same applies with the corresponding "min_protocol" and 2279 "max_protocol" command-line switches, in case some application uses both TLS 2280 and DTLS. 2281 2282 SSL_CTX instances that are created for a fixed protocol version (e.g. 2283 TLSv1_server_method()) also silently ignore version bounds. Previously 2284 attempts to apply bounds to these protocol versions would result in an 2285 error. Now only the "version-flexible" SSL_CTX instances are subject to 2286 limits in configuration files in command-line options. 2287 2288 *Viktor Dukhovni* 2289 2290 * Handshake now fails if Extended Master Secret extension is dropped 2291 on renegotiation. 2292 2293 *Tomáš Mráz* 2294 2295 * The Oracle Developer Studio compiler will start reporting deprecated APIs 2296 2297### Changes between 1.1.1f and 1.1.1g [21 Apr 2020] 2298 2299 * Fixed segmentation fault in SSL_check_chain() 2300 Server or client applications that call the SSL_check_chain() function 2301 during or after a TLS 1.3 handshake may crash due to a NULL pointer 2302 dereference as a result of incorrect handling of the 2303 "signature_algorithms_cert" TLS extension. The crash occurs if an invalid 2304 or unrecognised signature algorithm is received from the peer. This could 2305 be exploited by a malicious peer in a Denial of Service attack. 2306 ([CVE-2020-1967]) 2307 2308 *Benjamin Kaduk* 2309 2310 * Added AES consttime code for no-asm configurations 2311 an optional constant time support for AES was added 2312 when building openssl for no-asm. 2313 Enable with: ./config no-asm -DOPENSSL_AES_CONST_TIME 2314 Disable with: ./config no-asm -DOPENSSL_NO_AES_CONST_TIME 2315 At this time this feature is by default disabled. 2316 It will be enabled by default in 3.0. 2317 2318 *Bernd Edlinger* 2319 2320### Changes between 1.1.1e and 1.1.1f [31 Mar 2020] 2321 2322 * Revert the change of EOF detection while reading in libssl to avoid 2323 regressions in applications depending on the current way of reporting 2324 the EOF. As the existing method is not fully accurate the change to 2325 reporting the EOF via SSL_ERROR_SSL is kept on the current development 2326 branch and will be present in the 3.0 release. 2327 2328 *Tomáš Mráz* 2329 2330 * Revised BN_generate_prime_ex to not avoid factors 3..17863 in p-1 2331 when primes for RSA keys are computed. 2332 Since we previously always generated primes == 2 (mod 3) for RSA keys, 2333 the 2-prime and 3-prime RSA modules were easy to distinguish, since 2334 N = p*q = 1 (mod 3), but N = p*q*r = 2 (mod 3). Therefore fingerprinting 2335 2-prime vs. 3-prime RSA keys was possible by computing N mod 3. 2336 This avoids possible fingerprinting of newly generated RSA modules. 2337 2338 *Bernd Edlinger* 2339 2340### Changes between 1.1.1d and 1.1.1e [17 Mar 2020] 2341 2342 * Properly detect EOF while reading in libssl. Previously if we hit an EOF 2343 while reading in libssl then we would report an error back to the 2344 application (SSL_ERROR_SYSCALL) but errno would be 0. We now add 2345 an error to the stack (which means we instead return SSL_ERROR_SSL) and 2346 therefore give a hint as to what went wrong. 2347 2348 *Matt Caswell* 2349 2350 * Check that ed25519 and ed448 are allowed by the security level. Previously 2351 signature algorithms not using an MD were not being checked that they were 2352 allowed by the security level. 2353 2354 *Kurt Roeckx* 2355 2356 * Fixed SSL_get_servername() behaviour. The behaviour of SSL_get_servername() 2357 was not quite right. The behaviour was not consistent between resumption 2358 and normal handshakes, and also not quite consistent with historical 2359 behaviour. The behaviour in various scenarios has been clarified and 2360 it has been updated to make it match historical behaviour as closely as 2361 possible. 2362 2363 *Matt Caswell* 2364 2365 * *[VMS only]* The header files that the VMS compilers include automatically, 2366 `__DECC_INCLUDE_PROLOGUE.H` and `__DECC_INCLUDE_EPILOGUE.H`, use pragmas 2367 that the C++ compiler doesn't understand. This is a shortcoming in the 2368 compiler, but can be worked around with `__cplusplus` guards. 2369 2370 C++ applications that use OpenSSL libraries must be compiled using the 2371 qualifier `/NAMES=(AS_IS,SHORTENED)` to be able to use all the OpenSSL 2372 functions. Otherwise, only functions with symbols of less than 31 2373 characters can be used, as the linker will not be able to successfully 2374 resolve symbols with longer names. 2375 2376 *Richard Levitte* 2377 2378 * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY. 2379 The presence of this system service is determined at run-time. 2380 2381 *Richard Levitte* 2382 2383 * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just 2384 the first value. 2385 2386 *Jon Spillett* 2387 2388### Changes between 1.1.1c and 1.1.1d [10 Sep 2019] 2389 2390 * Fixed a fork protection issue. OpenSSL 1.1.1 introduced a rewritten random 2391 number generator (RNG). This was intended to include protection in the 2392 event of a fork() system call in order to ensure that the parent and child 2393 processes did not share the same RNG state. However this protection was not 2394 being used in the default case. 2395 2396 A partial mitigation for this issue is that the output from a high 2397 precision timer is mixed into the RNG state so the likelihood of a parent 2398 and child process sharing state is significantly reduced. 2399 2400 If an application already calls OPENSSL_init_crypto() explicitly using 2401 OPENSSL_INIT_ATFORK then this problem does not occur at all. 2402 ([CVE-2019-1549]) 2403 2404 *Matthias St. Pierre* 2405 2406 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 2407 used even when parsing explicit parameters, when loading a encoded key 2408 or calling `EC_GROUP_new_from_ecpkparameters()`/ 2409 `EC_GROUP_new_from_ecparameters()`. 2410 This prevents bypass of security hardening and performance gains, 2411 especially for curves with specialized EC_METHODs. 2412 By default, if a key encoded with explicit parameters is loaded and later 2413 encoded, the output is still encoded with explicit parameters, even if 2414 internally a "named" EC_GROUP is used for computation. 2415 2416 *Nicola Tuveri* 2417 2418 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 2419 this change, EC_GROUP_set_generator would accept order and/or cofactor as 2420 NULL. After this change, only the cofactor parameter can be NULL. It also 2421 does some minimal sanity checks on the passed order. 2422 ([CVE-2019-1547]) 2423 2424 *Billy Bob Brumley* 2425 2426 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 2427 An attack is simple, if the first CMS_recipientInfo is valid but the 2428 second CMS_recipientInfo is chosen ciphertext. If the second 2429 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 2430 encryption key will be replaced by garbage, and the message cannot be 2431 decoded, but if the RSA decryption fails, the correct encryption key is 2432 used and the recipient will not notice the attack. 2433 As a work around for this potential attack the length of the decrypted 2434 key must be equal to the cipher default key length, in case the 2435 certifiate is not given and all recipientInfo are tried out. 2436 The old behaviour can be re-enabled in the CMS code by setting the 2437 CMS_DEBUG_DECRYPT flag. 2438 ([CVE-2019-1563]) 2439 2440 *Bernd Edlinger* 2441 2442 * Early start up entropy quality from the DEVRANDOM seed source has been 2443 improved for older Linux systems. The RAND subsystem will wait for 2444 /dev/random to be producing output before seeding from /dev/urandom. 2445 The seeded state is stored for future library initialisations using 2446 a system global shared memory segment. The shared memory identifier 2447 can be configured by defining OPENSSL_RAND_SEED_DEVRANDOM_SHM_ID to 2448 the desired value. The default identifier is 114. 2449 2450 *Paul Dale* 2451 2452 * Correct the extended master secret constant on EBCDIC systems. Without this 2453 fix TLS connections between an EBCDIC system and a non-EBCDIC system that 2454 negotiate EMS will fail. Unfortunately this also means that TLS connections 2455 between EBCDIC systems with this fix, and EBCDIC systems without this 2456 fix will fail if they negotiate EMS. 2457 2458 *Matt Caswell* 2459 2460 * Use Windows installation paths in the mingw builds 2461 2462 Mingw isn't a POSIX environment per se, which means that Windows 2463 paths should be used for installation. 2464 ([CVE-2019-1552]) 2465 2466 *Richard Levitte* 2467 2468 * Changed DH_check to accept parameters with order q and 2q subgroups. 2469 With order 2q subgroups the bit 0 of the private key is not secret 2470 but DH_generate_key works around that by clearing bit 0 of the 2471 private key for those. This avoids leaking bit 0 of the private key. 2472 2473 *Bernd Edlinger* 2474 2475 * Significantly reduce secure memory usage by the randomness pools. 2476 2477 *Paul Dale* 2478 2479 * Revert the DEVRANDOM_WAIT feature for Linux systems 2480 2481 The DEVRANDOM_WAIT feature added a select() call to wait for the 2482 /dev/random device to become readable before reading from the 2483 /dev/urandom device. 2484 2485 It turned out that this change had negative side effects on 2486 performance which were not acceptable. After some discussion it 2487 was decided to revert this feature and leave it up to the OS 2488 resp. the platform maintainer to ensure a proper initialization 2489 during early boot time. 2490 2491 *Matthias St. Pierre* 2492 2493### Changes between 1.1.1b and 1.1.1c [28 May 2019] 2494 2495 * Add build tests for C++. These are generated files that only do one 2496 thing, to include one public OpenSSL head file each. This tests that 2497 the public header files can be usefully included in a C++ application. 2498 2499 This test isn't enabled by default. It can be enabled with the option 2500 'enable-buildtest-c++'. 2501 2502 *Richard Levitte* 2503 2504 * Enable SHA3 pre-hashing for ECDSA and DSA. 2505 2506 *Patrick Steuer* 2507 2508 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 2509 This changes the size when using the `genpkey` command when no size is given. 2510 It fixes an omission in earlier changes that changed all RSA, DSA and DH 2511 generation commands to use 2048 bits by default. 2512 2513 *Kurt Roeckx* 2514 2515 * Reorganize the manual pages to consistently have RETURN VALUES, 2516 EXAMPLES, SEE ALSO and HISTORY come in that order, and adjust 2517 util/fix-doc-nits accordingly. 2518 2519 *Paul Yang, Joshua Lock* 2520 2521 * Add the missing accessor EVP_PKEY_get0_engine() 2522 2523 *Matt Caswell* 2524 2525 * Have commands like `s_client` and `s_server` output the signature scheme 2526 along with other cipher suite parameters when debugging. 2527 2528 *Lorinczy Zsigmond* 2529 2530 * Make OPENSSL_config() error agnostic again. 2531 2532 *Richard Levitte* 2533 2534 * Do the error handling in RSA decryption constant time. 2535 2536 *Bernd Edlinger* 2537 2538 * Prevent over long nonces in ChaCha20-Poly1305. 2539 2540 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input 2541 for every encryption operation. RFC 7539 specifies that the nonce value 2542 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length 2543 and front pads the nonce with 0 bytes if it is less than 12 2544 bytes. However it also incorrectly allows a nonce to be set of up to 16 2545 bytes. In this case only the last 12 bytes are significant and any 2546 additional leading bytes are ignored. 2547 2548 It is a requirement of using this cipher that nonce values are 2549 unique. Messages encrypted using a reused nonce value are susceptible to 2550 serious confidentiality and integrity attacks. If an application changes 2551 the default nonce length to be longer than 12 bytes and then makes a 2552 change to the leading bytes of the nonce expecting the new value to be a 2553 new unique nonce then such an application could inadvertently encrypt 2554 messages with a reused nonce. 2555 2556 Additionally the ignored bytes in a long nonce are not covered by the 2557 integrity guarantee of this cipher. Any application that relies on the 2558 integrity of these ignored leading bytes of a long nonce may be further 2559 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, 2560 is safe because no such use sets such a long nonce value. However user 2561 applications that use this cipher directly and set a non-default nonce 2562 length to be longer than 12 bytes may be vulnerable. 2563 2564 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk 2565 Greef of Ronomon. 2566 ([CVE-2019-1543]) 2567 2568 *Matt Caswell* 2569 2570 * Add DEVRANDOM_WAIT feature for Linux systems 2571 2572 On older Linux systems where the getrandom() system call is not available, 2573 OpenSSL normally uses the /dev/urandom device for seeding its CSPRNG. 2574 Contrary to getrandom(), the /dev/urandom device will not block during 2575 early boot when the kernel CSPRNG has not been seeded yet. 2576 2577 To mitigate this known weakness, use select() to wait for /dev/random to 2578 become readable before reading from /dev/urandom. 2579 2580 * Ensure that SM2 only uses SM3 as digest algorithm 2581 2582 *Paul Yang* 2583 2584### Changes between 1.1.1a and 1.1.1b [26 Feb 2019] 2585 2586 * Change the info callback signals for the start and end of a post-handshake 2587 message exchange in TLSv1.3. In 1.1.1/1.1.1a we used SSL_CB_HANDSHAKE_START 2588 and SSL_CB_HANDSHAKE_DONE. Experience has shown that many applications get 2589 confused by this and assume that a TLSv1.2 renegotiation has started. This 2590 can break KeyUpdate handling. Instead we no longer signal the start and end 2591 of a post handshake message exchange (although the messages themselves are 2592 still signalled). This could break some applications that were expecting 2593 the old signals. However without this KeyUpdate is not usable for many 2594 applications. 2595 2596 *Matt Caswell* 2597 2598### Changes between 1.1.1 and 1.1.1a [20 Nov 2018] 2599 2600 * Timing vulnerability in DSA signature generation 2601 2602 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 2603 timing side channel attack. An attacker could use variations in the signing 2604 algorithm to recover the private key. 2605 2606 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 2607 ([CVE-2018-0734]) 2608 2609 *Paul Dale* 2610 2611 * Timing vulnerability in ECDSA signature generation 2612 2613 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a 2614 timing side channel attack. An attacker could use variations in the signing 2615 algorithm to recover the private key. 2616 2617 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser. 2618 ([CVE-2018-0735]) 2619 2620 *Paul Dale* 2621 2622 * Fixed the issue that RAND_add()/RAND_seed() silently discards random input 2623 if its length exceeds 4096 bytes. The limit has been raised to a buffer size 2624 of two gigabytes and the error handling improved. 2625 2626 This issue was reported to OpenSSL by Dr. Falko Strenzke. It has been 2627 categorized as a normal bug, not a security issue, because the DRBG reseeds 2628 automatically and is fully functional even without additional randomness 2629 provided by the application. 2630 2631### Changes between 1.1.0i and 1.1.1 [11 Sep 2018] 2632 2633 * Add a new ClientHello callback. Provides a callback interface that gives 2634 the application the ability to adjust the nascent SSL object at the 2635 earliest stage of ClientHello processing, immediately after extensions have 2636 been collected but before they have been processed. In particular, this 2637 callback can adjust the supported TLS versions in response to the contents 2638 of the ClientHello 2639 2640 *Benjamin Kaduk* 2641 2642 * Add SM2 base algorithm support. 2643 2644 *Jack Lloyd* 2645 2646 * s390x assembly pack: add (improved) hardware-support for the following 2647 cryptographic primitives: sha3, shake, aes-gcm, aes-ccm, aes-ctr, aes-ofb, 2648 aes-cfb/cfb8, aes-ecb. 2649 2650 *Patrick Steuer* 2651 2652 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 2653 parameter is no longer accepted, as it leads to a corrupt table. NULL 2654 pem_str is reserved for alias entries only. 2655 2656 *Richard Levitte* 2657 2658 * Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 2659 step for prime curves. The new implementation is based on formulae from 2660 differential addition-and-doubling in homogeneous projective coordinates 2661 from Izu-Takagi "A fast parallel elliptic curve multiplication resistant 2662 against side channel attacks" and Brier-Joye "Weierstrass Elliptic Curves 2663 and Side-Channel Attacks" Eq. (8) for y-coordinate recovery, modified 2664 to work in projective coordinates. 2665 2666 *Billy Bob Brumley, Nicola Tuveri* 2667 2668 * Change generating and checking of primes so that the error rate of not 2669 being prime depends on the intended use based on the size of the input. 2670 For larger primes this will result in more rounds of Miller-Rabin. 2671 The maximal error rate for primes with more than 1080 bits is lowered 2672 to 2^-128. 2673 2674 *Kurt Roeckx, Annie Yousar* 2675 2676 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 2677 2678 *Kurt Roeckx* 2679 2680 * The 'tsget' script is renamed to 'tsget.pl', to avoid confusion when 2681 moving between systems, and to avoid confusion when a Windows build is 2682 done with mingw vs with MSVC. For POSIX installs, there's still a 2683 symlink or copy named 'tsget' to avoid that confusion as well. 2684 2685 *Richard Levitte* 2686 2687 * Revert blinding in ECDSA sign and instead make problematic addition 2688 length-invariant. Switch even to fixed-length Montgomery multiplication. 2689 2690 *Andy Polyakov* 2691 2692 * Use the new ec_scalar_mul_ladder scaffold to implement a specialized ladder 2693 step for binary curves. The new implementation is based on formulae from 2694 differential addition-and-doubling in mixed Lopez-Dahab projective 2695 coordinates, modified to independently blind the operands. 2696 2697 *Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri* 2698 2699 * Add a scaffold to optionally enhance the Montgomery ladder implementation 2700 for `ec_scalar_mul_ladder` (formerly `ec_mul_consttime`) allowing 2701 EC_METHODs to implement their own specialized "ladder step", to take 2702 advantage of more favorable coordinate systems or more efficient 2703 differential addition-and-doubling algorithms. 2704 2705 *Billy Bob Brumley, Sohaib ul Hassan, Nicola Tuveri* 2706 2707 * Modified the random device based seed sources to keep the relevant 2708 file descriptors open rather than reopening them on each access. 2709 This allows such sources to operate in a chroot() jail without 2710 the associated device nodes being available. This behaviour can be 2711 controlled using RAND_keep_random_devices_open(). 2712 2713 *Paul Dale* 2714 2715 * Numerous side-channel attack mitigations have been applied. This may have 2716 performance impacts for some algorithms for the benefit of improved 2717 security. Specific changes are noted in this change log by their respective 2718 authors. 2719 2720 *Matt Caswell* 2721 2722 * AIX shared library support overhaul. Switch to AIX "natural" way of 2723 handling shared libraries, which means collecting shared objects of 2724 different versions and bitnesses in one common archive. This allows to 2725 mitigate conflict between 1.0 and 1.1 side-by-side installations. It 2726 doesn't affect the way 3rd party applications are linked, only how 2727 multi-version installation is managed. 2728 2729 *Andy Polyakov* 2730 2731 * Make ec_group_do_inverse_ord() more robust and available to other 2732 EC cryptosystems, so that irrespective of BN_FLG_CONSTTIME, SCA 2733 mitigations are applied to the fallback BN_mod_inverse(). 2734 When using this function rather than BN_mod_inverse() directly, new 2735 EC cryptosystem implementations are then safer-by-default. 2736 2737 *Billy Bob Brumley* 2738 2739 * Add coordinate blinding for EC_POINT and implement projective 2740 coordinate blinding for generic prime curves as a countermeasure to 2741 chosen point SCA attacks. 2742 2743 *Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley* 2744 2745 * Add blinding to ECDSA and DSA signatures to protect against side channel 2746 attacks discovered by Keegan Ryan (NCC Group). 2747 2748 *Matt Caswell* 2749 2750 * Enforce checking in the `pkeyutl` command to ensure that the input 2751 length does not exceed the maximum supported digest length when performing 2752 a sign, verify or verifyrecover operation. 2753 2754 *Matt Caswell* 2755 2756 * SSL_MODE_AUTO_RETRY is enabled by default. Applications that use blocking 2757 I/O in combination with something like select() or poll() will hang. This 2758 can be turned off again using SSL_CTX_clear_mode(). 2759 Many applications do not properly handle non-application data records, and 2760 TLS 1.3 sends more of such records. Setting SSL_MODE_AUTO_RETRY works 2761 around the problems in those applications, but can also break some. 2762 It's recommended to read the manpages about SSL_read(), SSL_write(), 2763 SSL_get_error(), SSL_shutdown(), SSL_CTX_set_mode() and 2764 SSL_CTX_set_read_ahead() again. 2765 2766 *Kurt Roeckx* 2767 2768 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 2769 now allow empty (zero character) pass phrases. 2770 2771 *Richard Levitte* 2772 2773 * Apply blinding to binary field modular inversion and remove patent 2774 pending (OPENSSL_SUN_GF2M_DIV) BN_GF2m_mod_div implementation. 2775 2776 *Billy Bob Brumley* 2777 2778 * Deprecate ec2_mult.c and unify scalar multiplication code paths for 2779 binary and prime elliptic curves. 2780 2781 *Billy Bob Brumley* 2782 2783 * Remove ECDSA nonce padding: EC_POINT_mul is now responsible for 2784 constant time fixed point multiplication. 2785 2786 *Billy Bob Brumley* 2787 2788 * Revise elliptic curve scalar multiplication with timing attack 2789 defenses: ec_wNAF_mul redirects to a constant time implementation 2790 when computing fixed point and variable point multiplication (which 2791 in OpenSSL are mostly used with secret scalars in keygen, sign, 2792 ECDH derive operations). 2793 *Billy Bob Brumley, Nicola Tuveri, Cesar Pereida García, 2794 Sohaib ul Hassan* 2795 2796 * Updated CONTRIBUTING 2797 2798 *Rich Salz* 2799 2800 * Updated DRBG / RAND to request nonce and additional low entropy 2801 randomness from the system. 2802 2803 *Matthias St. Pierre* 2804 2805 * Updated 'openssl rehash' to use OpenSSL consistent default. 2806 2807 *Richard Levitte* 2808 2809 * Moved the load of the ssl_conf module to libcrypto, which helps 2810 loading engines that libssl uses before libssl is initialised. 2811 2812 *Matt Caswell* 2813 2814 * Added EVP_PKEY_sign() and EVP_PKEY_verify() for EdDSA 2815 2816 *Matt Caswell* 2817 2818 * Fixed X509_NAME_ENTRY_set to get multi-valued RDNs right in all cases. 2819 2820 *Ingo Schwarze, Rich Salz* 2821 2822 * Added output of accepting IP address and port for 'openssl s_server' 2823 2824 *Richard Levitte* 2825 2826 * Added a new API for TLSv1.3 ciphersuites: 2827 SSL_CTX_set_ciphersuites() 2828 SSL_set_ciphersuites() 2829 2830 *Matt Caswell* 2831 2832 * Memory allocation failures consistently add an error to the error 2833 stack. 2834 2835 *Rich Salz* 2836 2837 * Don't use OPENSSL_ENGINES and OPENSSL_CONF environment values 2838 in libcrypto when run as setuid/setgid. 2839 2840 *Bernd Edlinger* 2841 2842 * Load any config file by default when libssl is used. 2843 2844 *Matt Caswell* 2845 2846 * Added new public header file <openssl/rand_drbg.h> and documentation 2847 for the RAND_DRBG API. See manual page RAND_DRBG(7) for an overview. 2848 2849 *Matthias St. Pierre* 2850 2851 * QNX support removed (cannot find contributors to get their approval 2852 for the license change). 2853 2854 *Rich Salz* 2855 2856 * TLSv1.3 replay protection for early data has been implemented. See the 2857 SSL_read_early_data() man page for further details. 2858 2859 *Matt Caswell* 2860 2861 * Separated TLSv1.3 ciphersuite configuration out from TLSv1.2 ciphersuite 2862 configuration. TLSv1.3 ciphersuites are not compatible with TLSv1.2 and 2863 below. Similarly TLSv1.2 ciphersuites are not compatible with TLSv1.3. 2864 In order to avoid issues where legacy TLSv1.2 ciphersuite configuration 2865 would otherwise inadvertently disable all TLSv1.3 ciphersuites the 2866 configuration has been separated out. See the ciphers man page or the 2867 SSL_CTX_set_ciphersuites() man page for more information. 2868 2869 *Matt Caswell* 2870 2871 * On POSIX (BSD, Linux, ...) systems the ocsp(1) command running 2872 in responder mode now supports the new "-multi" option, which 2873 spawns the specified number of child processes to handle OCSP 2874 requests. The "-timeout" option now also limits the OCSP 2875 responder's patience to wait to receive the full client request 2876 on a newly accepted connection. Child processes are respawned 2877 as needed, and the CA index file is automatically reloaded 2878 when changed. This makes it possible to run the "ocsp" responder 2879 as a long-running service, making the OpenSSL CA somewhat more 2880 feature-complete. In this mode, most diagnostic messages logged 2881 after entering the event loop are logged via syslog(3) rather than 2882 written to stderr. 2883 2884 *Viktor Dukhovni* 2885 2886 * Added support for X448 and Ed448. Heavily based on original work by 2887 Mike Hamburg. 2888 2889 *Matt Caswell* 2890 2891 * Extend OSSL_STORE with capabilities to search and to narrow the set of 2892 objects loaded. This adds the functions OSSL_STORE_expect() and 2893 OSSL_STORE_find() as well as needed tools to construct searches and 2894 get the search data out of them. 2895 2896 *Richard Levitte* 2897 2898 * Support for TLSv1.3 added. Note that users upgrading from an earlier 2899 version of OpenSSL should review their configuration settings to ensure 2900 that they are still appropriate for TLSv1.3. For further information see: 2901 <https://wiki.openssl.org/index.php/TLS1.3> 2902 2903 *Matt Caswell* 2904 2905 * Grand redesign of the OpenSSL random generator 2906 2907 The default RAND method now utilizes an AES-CTR DRBG according to 2908 NIST standard SP 800-90Ar1. The new random generator is essentially 2909 a port of the default random generator from the OpenSSL FIPS 2.0 2910 object module. It is a hybrid deterministic random bit generator 2911 using an AES-CTR bit stream and which seeds and reseeds itself 2912 automatically using trusted system entropy sources. 2913 2914 Some of its new features are: 2915 - Support for multiple DRBG instances with seed chaining. 2916 - The default RAND method makes use of a DRBG. 2917 - There is a public and private DRBG instance. 2918 - The DRBG instances are fork-safe. 2919 - Keep all global DRBG instances on the secure heap if it is enabled. 2920 - The public and private DRBG instance are per thread for lock free 2921 operation 2922 2923 *Paul Dale, Benjamin Kaduk, Kurt Roeckx, Rich Salz, Matthias St. Pierre* 2924 2925 * Changed Configure so it only says what it does and doesn't dump 2926 so much data. Instead, ./configdata.pm should be used as a script 2927 to display all sorts of configuration data. 2928 2929 *Richard Levitte* 2930 2931 * Added processing of "make variables" to Configure. 2932 2933 *Richard Levitte* 2934 2935 * Added SHA512/224 and SHA512/256 algorithm support. 2936 2937 *Paul Dale* 2938 2939 * The last traces of Netware support, first removed in 1.1.0, have 2940 now been removed. 2941 2942 *Rich Salz* 2943 2944 * Get rid of Makefile.shared, and in the process, make the processing 2945 of certain files (rc.obj, or the .def/.map/.opt files produced from 2946 the ordinal files) more visible and hopefully easier to trace and 2947 debug (or make silent). 2948 2949 *Richard Levitte* 2950 2951 * Make it possible to have environment variable assignments as 2952 arguments to config / Configure. 2953 2954 *Richard Levitte* 2955 2956 * Add multi-prime RSA (RFC 8017) support. 2957 2958 *Paul Yang* 2959 2960 * Add SM3 implemented according to GB/T 32905-2016 2961 *Jack Lloyd <jack.lloyd@ribose.com>,* 2962 *Ronald Tse <ronald.tse@ribose.com>,* 2963 *Erick Borsboom <erick.borsboom@ribose.com>* 2964 2965 * Add 'Maximum Fragment Length' TLS extension negotiation and support 2966 as documented in RFC6066. 2967 Based on a patch from Tomasz Moń 2968 2969 *Filipe Raimundo da Silva* 2970 2971 * Add SM4 implemented according to GB/T 32907-2016. 2972 *Jack Lloyd <jack.lloyd@ribose.com>,* 2973 *Ronald Tse <ronald.tse@ribose.com>,* 2974 *Erick Borsboom <erick.borsboom@ribose.com>* 2975 2976 * Reimplement -newreq-nodes and ERR_error_string_n; the 2977 original author does not agree with the license change. 2978 2979 *Rich Salz* 2980 2981 * Add ARIA AEAD TLS support. 2982 2983 *Jon Spillett* 2984 2985 * Some macro definitions to support VS6 have been removed. Visual 2986 Studio 6 has not worked since 1.1.0 2987 2988 *Rich Salz* 2989 2990 * Add ERR_clear_last_mark(), to allow callers to clear the last mark 2991 without clearing the errors. 2992 2993 *Richard Levitte* 2994 2995 * Add "atfork" functions. If building on a system that without 2996 pthreads, see doc/man3/OPENSSL_fork_prepare.pod for application 2997 requirements. The RAND facility now uses/requires this. 2998 2999 *Rich Salz* 3000 3001 * Add SHA3. 3002 3003 *Andy Polyakov* 3004 3005 * The UI API becomes a permanent and integral part of libcrypto, i.e. 3006 not possible to disable entirely. However, it's still possible to 3007 disable the console reading UI method, UI_OpenSSL() (use UI_null() 3008 as a fallback). 3009 3010 To disable, configure with 'no-ui-console'. 'no-ui' is still 3011 possible to use as an alias. Check at compile time with the 3012 macro OPENSSL_NO_UI_CONSOLE. The macro OPENSSL_NO_UI is still 3013 possible to check and is an alias for OPENSSL_NO_UI_CONSOLE. 3014 3015 *Richard Levitte* 3016 3017 * Add a STORE module, which implements a uniform and URI based reader of 3018 stores that can contain keys, certificates, CRLs and numerous other 3019 objects. The main API is loosely based on a few stdio functions, 3020 and includes OSSL_STORE_open, OSSL_STORE_load, OSSL_STORE_eof, 3021 OSSL_STORE_error and OSSL_STORE_close. 3022 The implementation uses backends called "loaders" to implement arbitrary 3023 URI schemes. There is one built in "loader" for the 'file' scheme. 3024 3025 *Richard Levitte* 3026 3027 * Add devcrypto engine. This has been implemented against cryptodev-linux, 3028 then adjusted to work on FreeBSD 8.4 as well. 3029 Enable by configuring with 'enable-devcryptoeng'. This is done by default 3030 on BSD implementations, as cryptodev.h is assumed to exist on all of them. 3031 3032 *Richard Levitte* 3033 3034 * Module names can prefixed with OSSL_ or OPENSSL_. This affects 3035 util/mkerr.pl, which is adapted to allow those prefixes, leading to 3036 error code calls like this: 3037 3038 OSSL_FOOerr(OSSL_FOO_F_SOMETHING, OSSL_FOO_R_WHATEVER); 3039 3040 With this change, we claim the namespaces OSSL and OPENSSL in a manner 3041 that can be encoded in C. For the foreseeable future, this will only 3042 affect new modules. 3043 3044 *Richard Levitte and Tim Hudson* 3045 3046 * Removed BSD cryptodev engine. 3047 3048 *Rich Salz* 3049 3050 * Add a build target 'build_all_generated', to build all generated files 3051 and only that. This can be used to prepare everything that requires 3052 things like perl for a system that lacks perl and then move everything 3053 to that system and do the rest of the build there. 3054 3055 *Richard Levitte* 3056 3057 * In the UI interface, make it possible to duplicate the user data. This 3058 can be used by engines that need to retain the data for a longer time 3059 than just the call where this user data is passed. 3060 3061 *Richard Levitte* 3062 3063 * Ignore the '-named_curve auto' value for compatibility of applications 3064 with OpenSSL 1.0.2. 3065 3066 *Tomáš Mráz <tmraz@fedoraproject.org>* 3067 3068 * Fragmented SSL/TLS alerts are no longer accepted. An alert message is 2 3069 bytes long. In theory it is permissible in SSLv3 - TLSv1.2 to fragment such 3070 alerts across multiple records (some of which could be empty). In practice 3071 it make no sense to send an empty alert record, or to fragment one. TLSv1.3 3072 prohibits this altogether and other libraries (BoringSSL, NSS) do not 3073 support this at all. Supporting it adds significant complexity to the 3074 record layer, and its removal is unlikely to cause interoperability 3075 issues. 3076 3077 *Matt Caswell* 3078 3079 * Add the ASN.1 types INT32, UINT32, INT64, UINT64 and variants prefixed 3080 with Z. These are meant to replace LONG and ZLONG and to be size safe. 3081 The use of LONG and ZLONG is discouraged and scheduled for deprecation 3082 in OpenSSL 1.2.0. 3083 3084 *Richard Levitte* 3085 3086 * Add the 'z' and 'j' modifiers to BIO_printf() et al formatting string, 3087 'z' is to be used for [s]size_t, and 'j' - with [u]int64_t. 3088 3089 *Richard Levitte, Andy Polyakov* 3090 3091 * Add EC_KEY_get0_engine(), which does for EC_KEY what RSA_get0_engine() 3092 does for RSA, etc. 3093 3094 *Richard Levitte* 3095 3096 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 3097 platform rather than 'mingw'. 3098 3099 *Richard Levitte* 3100 3101 * The functions X509_STORE_add_cert and X509_STORE_add_crl return 3102 success if they are asked to add an object which already exists 3103 in the store. This change cascades to other functions which load 3104 certificates and CRLs. 3105 3106 *Paul Dale* 3107 3108 * x86_64 assembly pack: annotate code with DWARF CFI directives to 3109 facilitate stack unwinding even from assembly subroutines. 3110 3111 *Andy Polyakov* 3112 3113 * Remove VAX C specific definitions of OPENSSL_EXPORT, OPENSSL_EXTERN. 3114 Also remove OPENSSL_GLOBAL entirely, as it became a no-op. 3115 3116 *Richard Levitte* 3117 3118 * Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 3119 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 3120 which is the minimum version we support. 3121 3122 *Richard Levitte* 3123 3124 * Certificate time validation (X509_cmp_time) enforces stricter 3125 compliance with RFC 5280. Fractional seconds and timezone offsets 3126 are no longer allowed. 3127 3128 *Emilia Käsper* 3129 3130 * Add support for ARIA 3131 3132 *Paul Dale* 3133 3134 * s_client will now send the Server Name Indication (SNI) extension by 3135 default unless the new "-noservername" option is used. The server name is 3136 based on the host provided to the "-connect" option unless overridden by 3137 using "-servername". 3138 3139 *Matt Caswell* 3140 3141 * Add support for SipHash 3142 3143 *Todd Short* 3144 3145 * OpenSSL now fails if it receives an unrecognised record type in TLS1.0 3146 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 3147 prevent issues where no progress is being made and the peer continually 3148 sends unrecognised record types, using up resources processing them. 3149 3150 *Matt Caswell* 3151 3152 * 'openssl passwd' can now produce SHA256 and SHA512 based output, 3153 using the algorithm defined in 3154 <https://www.akkadia.org/drepper/SHA-crypt.txt> 3155 3156 *Richard Levitte* 3157 3158 * Heartbeat support has been removed; the ABI is changed for now. 3159 3160 *Richard Levitte, Rich Salz* 3161 3162 * Support for SSL_OP_NO_ENCRYPT_THEN_MAC in SSL_CONF_cmd. 3163 3164 *Emilia Käsper* 3165 3166 * The RSA "null" method, which was partially supported to avoid patent 3167 issues, has been replaced to always returns NULL. 3168 3169 *Rich Salz* 3170 3171OpenSSL 1.1.0 3172------------- 3173 3174### Changes between 1.1.0k and 1.1.0l [10 Sep 2019] 3175 3176 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 3177 used even when parsing explicit parameters, when loading a encoded key 3178 or calling `EC_GROUP_new_from_ecpkparameters()`/ 3179 `EC_GROUP_new_from_ecparameters()`. 3180 This prevents bypass of security hardening and performance gains, 3181 especially for curves with specialized EC_METHODs. 3182 By default, if a key encoded with explicit parameters is loaded and later 3183 encoded, the output is still encoded with explicit parameters, even if 3184 internally a "named" EC_GROUP is used for computation. 3185 3186 *Nicola Tuveri* 3187 3188 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 3189 this change, EC_GROUP_set_generator would accept order and/or cofactor as 3190 NULL. After this change, only the cofactor parameter can be NULL. It also 3191 does some minimal sanity checks on the passed order. 3192 ([CVE-2019-1547]) 3193 3194 *Billy Bob Brumley* 3195 3196 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 3197 An attack is simple, if the first CMS_recipientInfo is valid but the 3198 second CMS_recipientInfo is chosen ciphertext. If the second 3199 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 3200 encryption key will be replaced by garbage, and the message cannot be 3201 decoded, but if the RSA decryption fails, the correct encryption key is 3202 used and the recipient will not notice the attack. 3203 As a work around for this potential attack the length of the decrypted 3204 key must be equal to the cipher default key length, in case the 3205 certifiate is not given and all recipientInfo are tried out. 3206 The old behaviour can be re-enabled in the CMS code by setting the 3207 CMS_DEBUG_DECRYPT flag. 3208 ([CVE-2019-1563]) 3209 3210 *Bernd Edlinger* 3211 3212 * Use Windows installation paths in the mingw builds 3213 3214 Mingw isn't a POSIX environment per se, which means that Windows 3215 paths should be used for installation. 3216 ([CVE-2019-1552]) 3217 3218 *Richard Levitte* 3219 3220### Changes between 1.1.0j and 1.1.0k [28 May 2019] 3221 3222 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 3223 This changes the size when using the `genpkey` command when no size is given. 3224 It fixes an omission in earlier changes that changed all RSA, DSA and DH 3225 generation commands to use 2048 bits by default. 3226 3227 *Kurt Roeckx* 3228 3229 * Prevent over long nonces in ChaCha20-Poly1305. 3230 3231 ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input 3232 for every encryption operation. RFC 7539 specifies that the nonce value 3233 (IV) should be 96 bits (12 bytes). OpenSSL allows a variable nonce length 3234 and front pads the nonce with 0 bytes if it is less than 12 3235 bytes. However it also incorrectly allows a nonce to be set of up to 16 3236 bytes. In this case only the last 12 bytes are significant and any 3237 additional leading bytes are ignored. 3238 3239 It is a requirement of using this cipher that nonce values are 3240 unique. Messages encrypted using a reused nonce value are susceptible to 3241 serious confidentiality and integrity attacks. If an application changes 3242 the default nonce length to be longer than 12 bytes and then makes a 3243 change to the leading bytes of the nonce expecting the new value to be a 3244 new unique nonce then such an application could inadvertently encrypt 3245 messages with a reused nonce. 3246 3247 Additionally the ignored bytes in a long nonce are not covered by the 3248 integrity guarantee of this cipher. Any application that relies on the 3249 integrity of these ignored leading bytes of a long nonce may be further 3250 affected. Any OpenSSL internal use of this cipher, including in SSL/TLS, 3251 is safe because no such use sets such a long nonce value. However user 3252 applications that use this cipher directly and set a non-default nonce 3253 length to be longer than 12 bytes may be vulnerable. 3254 3255 This issue was reported to OpenSSL on 16th of March 2019 by Joran Dirk 3256 Greef of Ronomon. 3257 ([CVE-2019-1543]) 3258 3259 *Matt Caswell* 3260 3261 * Added SCA hardening for modular field inversion in EC_GROUP through 3262 a new dedicated field_inv() pointer in EC_METHOD. 3263 This also addresses a leakage affecting conversions from projective 3264 to affine coordinates. 3265 3266 *Billy Bob Brumley, Nicola Tuveri* 3267 3268 * Fix a use after free bug in d2i_X509_PUBKEY when overwriting a 3269 re-used X509_PUBKEY object if the second PUBKEY is malformed. 3270 3271 *Bernd Edlinger* 3272 3273 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 3274 3275 *Richard Levitte* 3276 3277 * Remove the 'dist' target and add a tarball building script. The 3278 'dist' target has fallen out of use, and it shouldn't be 3279 necessary to configure just to create a source distribution. 3280 3281 *Richard Levitte* 3282 3283### Changes between 1.1.0i and 1.1.0j [20 Nov 2018] 3284 3285 * Timing vulnerability in DSA signature generation 3286 3287 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 3288 timing side channel attack. An attacker could use variations in the signing 3289 algorithm to recover the private key. 3290 3291 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 3292 ([CVE-2018-0734]) 3293 3294 *Paul Dale* 3295 3296 * Timing vulnerability in ECDSA signature generation 3297 3298 The OpenSSL ECDSA signature algorithm has been shown to be vulnerable to a 3299 timing side channel attack. An attacker could use variations in the signing 3300 algorithm to recover the private key. 3301 3302 This issue was reported to OpenSSL on 25th October 2018 by Samuel Weiser. 3303 ([CVE-2018-0735]) 3304 3305 *Paul Dale* 3306 3307 * Add coordinate blinding for EC_POINT and implement projective 3308 coordinate blinding for generic prime curves as a countermeasure to 3309 chosen point SCA attacks. 3310 3311 *Sohaib ul Hassan, Nicola Tuveri, Billy Bob Brumley* 3312 3313### Changes between 1.1.0h and 1.1.0i [14 Aug 2018] 3314 3315 * Client DoS due to large DH parameter 3316 3317 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 3318 malicious server can send a very large prime value to the client. This will 3319 cause the client to spend an unreasonably long period of time generating a 3320 key for this prime resulting in a hang until the client has finished. This 3321 could be exploited in a Denial Of Service attack. 3322 3323 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 3324 ([CVE-2018-0732]) 3325 3326 *Guido Vranken* 3327 3328 * Cache timing vulnerability in RSA Key Generation 3329 3330 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 3331 a cache timing side channel attack. An attacker with sufficient access to 3332 mount cache timing attacks during the RSA key generation process could 3333 recover the private key. 3334 3335 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 3336 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 3337 ([CVE-2018-0737]) 3338 3339 *Billy Brumley* 3340 3341 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 3342 parameter is no longer accepted, as it leads to a corrupt table. NULL 3343 pem_str is reserved for alias entries only. 3344 3345 *Richard Levitte* 3346 3347 * Revert blinding in ECDSA sign and instead make problematic addition 3348 length-invariant. Switch even to fixed-length Montgomery multiplication. 3349 3350 *Andy Polyakov* 3351 3352 * Change generating and checking of primes so that the error rate of not 3353 being prime depends on the intended use based on the size of the input. 3354 For larger primes this will result in more rounds of Miller-Rabin. 3355 The maximal error rate for primes with more than 1080 bits is lowered 3356 to 2^-128. 3357 3358 *Kurt Roeckx, Annie Yousar* 3359 3360 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 3361 3362 *Kurt Roeckx* 3363 3364 * Add blinding to ECDSA and DSA signatures to protect against side channel 3365 attacks discovered by Keegan Ryan (NCC Group). 3366 3367 *Matt Caswell* 3368 3369 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 3370 now allow empty (zero character) pass phrases. 3371 3372 *Richard Levitte* 3373 3374 * Certificate time validation (X509_cmp_time) enforces stricter 3375 compliance with RFC 5280. Fractional seconds and timezone offsets 3376 are no longer allowed. 3377 3378 *Emilia Käsper* 3379 3380 * Fixed a text canonicalisation bug in CMS 3381 3382 Where a CMS detached signature is used with text content the text goes 3383 through a canonicalisation process first prior to signing or verifying a 3384 signature. This process strips trailing space at the end of lines, converts 3385 line terminators to CRLF and removes additional trailing line terminators 3386 at the end of a file. A bug in the canonicalisation process meant that 3387 some characters, such as form-feed, were incorrectly treated as whitespace 3388 and removed. This is contrary to the specification (RFC5485). This fix 3389 could mean that detached text data signed with an earlier version of 3390 OpenSSL 1.1.0 may fail to verify using the fixed version, or text data 3391 signed with a fixed OpenSSL may fail to verify with an earlier version of 3392 OpenSSL 1.1.0. A workaround is to only verify the canonicalised text data 3393 and use the "-binary" flag (for the "cms" command line application) or set 3394 the SMIME_BINARY/PKCS7_BINARY/CMS_BINARY flags (if using CMS_verify()). 3395 3396 *Matt Caswell* 3397 3398### Changes between 1.1.0g and 1.1.0h [27 Mar 2018] 3399 3400 * Constructed ASN.1 types with a recursive definition could exceed the stack 3401 3402 Constructed ASN.1 types with a recursive definition (such as can be found 3403 in PKCS7) could eventually exceed the stack given malicious input with 3404 excessive recursion. This could result in a Denial Of Service attack. There 3405 are no such structures used within SSL/TLS that come from untrusted sources 3406 so this is considered safe. 3407 3408 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 3409 project. 3410 ([CVE-2018-0739]) 3411 3412 *Matt Caswell* 3413 3414 * Incorrect CRYPTO_memcmp on HP-UX PA-RISC 3415 3416 Because of an implementation bug the PA-RISC CRYPTO_memcmp function is 3417 effectively reduced to only comparing the least significant bit of each 3418 byte. This allows an attacker to forge messages that would be considered as 3419 authenticated in an amount of tries lower than that guaranteed by the 3420 security claims of the scheme. The module can only be compiled by the 3421 HP-UX assembler, so that only HP-UX PA-RISC targets are affected. 3422 3423 This issue was reported to OpenSSL on 2nd March 2018 by Peter Waltenberg 3424 (IBM). 3425 ([CVE-2018-0733]) 3426 3427 *Andy Polyakov* 3428 3429 * Add a build target 'build_all_generated', to build all generated files 3430 and only that. This can be used to prepare everything that requires 3431 things like perl for a system that lacks perl and then move everything 3432 to that system and do the rest of the build there. 3433 3434 *Richard Levitte* 3435 3436 * Backport SSL_OP_NO_RENGOTIATION 3437 3438 OpenSSL 1.0.2 and below had the ability to disable renegotiation using the 3439 (undocumented) SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS flag. Due to the opacity 3440 changes this is no longer possible in 1.1.0. Therefore the new 3441 SSL_OP_NO_RENEGOTIATION option from 1.1.1-dev has been backported to 3442 1.1.0 to provide equivalent functionality. 3443 3444 Note that if an application built against 1.1.0h headers (or above) is run 3445 using an older version of 1.1.0 (prior to 1.1.0h) then the option will be 3446 accepted but nothing will happen, i.e. renegotiation will not be prevented. 3447 3448 *Matt Caswell* 3449 3450 * Removed the OS390-Unix config target. It relied on a script that doesn't 3451 exist. 3452 3453 *Rich Salz* 3454 3455 * rsaz_1024_mul_avx2 overflow bug on x86_64 3456 3457 There is an overflow bug in the AVX2 Montgomery multiplication procedure 3458 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 3459 Analysis suggests that attacks against RSA and DSA as a result of this 3460 defect would be very difficult to perform and are not believed likely. 3461 Attacks against DH1024 are considered just feasible, because most of the 3462 work necessary to deduce information about a private key may be performed 3463 offline. The amount of resources required for such an attack would be 3464 significant. However, for an attack on TLS to be meaningful, the server 3465 would have to share the DH1024 private key among multiple clients, which is 3466 no longer an option since CVE-2016-0701. 3467 3468 This only affects processors that support the AVX2 but not ADX extensions 3469 like Intel Haswell (4th generation). 3470 3471 This issue was reported to OpenSSL by David Benjamin (Google). The issue 3472 was originally found via the OSS-Fuzz project. 3473 ([CVE-2017-3738]) 3474 3475 *Andy Polyakov* 3476 3477### Changes between 1.1.0f and 1.1.0g [2 Nov 2017] 3478 3479 * bn_sqrx8x_internal carry bug on x86_64 3480 3481 There is a carry propagating bug in the x86_64 Montgomery squaring 3482 procedure. No EC algorithms are affected. Analysis suggests that attacks 3483 against RSA and DSA as a result of this defect would be very difficult to 3484 perform and are not believed likely. Attacks against DH are considered just 3485 feasible (although very difficult) because most of the work necessary to 3486 deduce information about a private key may be performed offline. The amount 3487 of resources required for such an attack would be very significant and 3488 likely only accessible to a limited number of attackers. An attacker would 3489 additionally need online access to an unpatched system using the target 3490 private key in a scenario with persistent DH parameters and a private 3491 key that is shared between multiple clients. 3492 3493 This only affects processors that support the BMI1, BMI2 and ADX extensions 3494 like Intel Broadwell (5th generation) and later or AMD Ryzen. 3495 3496 This issue was reported to OpenSSL by the OSS-Fuzz project. 3497 ([CVE-2017-3736]) 3498 3499 *Andy Polyakov* 3500 3501 * Malformed X.509 IPAddressFamily could cause OOB read 3502 3503 If an X.509 certificate has a malformed IPAddressFamily extension, 3504 OpenSSL could do a one-byte buffer overread. The most likely result 3505 would be an erroneous display of the certificate in text format. 3506 3507 This issue was reported to OpenSSL by the OSS-Fuzz project. 3508 ([CVE-2017-3735]) 3509 3510 *Rich Salz* 3511 3512### Changes between 1.1.0e and 1.1.0f [25 May 2017] 3513 3514 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 3515 platform rather than 'mingw'. 3516 3517 *Richard Levitte* 3518 3519 * Remove the VMS-specific reimplementation of gmtime from crypto/o_times.c. 3520 VMS C's RTL has a fully up to date gmtime() and gmtime_r() since V7.1, 3521 which is the minimum version we support. 3522 3523 *Richard Levitte* 3524 3525### Changes between 1.1.0d and 1.1.0e [16 Feb 2017] 3526 3527 * Encrypt-Then-Mac renegotiation crash 3528 3529 During a renegotiation handshake if the Encrypt-Then-Mac extension is 3530 negotiated where it was not in the original handshake (or vice-versa) then 3531 this can cause OpenSSL to crash (dependant on ciphersuite). Both clients 3532 and servers are affected. 3533 3534 This issue was reported to OpenSSL by Joe Orton (Red Hat). 3535 ([CVE-2017-3733]) 3536 3537 *Matt Caswell* 3538 3539### Changes between 1.1.0c and 1.1.0d [26 Jan 2017] 3540 3541 * Truncated packet could crash via OOB read 3542 3543 If one side of an SSL/TLS path is running on a 32-bit host and a specific 3544 cipher is being used, then a truncated packet can cause that host to 3545 perform an out-of-bounds read, usually resulting in a crash. 3546 3547 This issue was reported to OpenSSL by Robert Święcki of Google. 3548 ([CVE-2017-3731]) 3549 3550 *Andy Polyakov* 3551 3552 * Bad (EC)DHE parameters cause a client crash 3553 3554 If a malicious server supplies bad parameters for a DHE or ECDHE key 3555 exchange then this can result in the client attempting to dereference a 3556 NULL pointer leading to a client crash. This could be exploited in a Denial 3557 of Service attack. 3558 3559 This issue was reported to OpenSSL by Guido Vranken. 3560 ([CVE-2017-3730]) 3561 3562 *Matt Caswell* 3563 3564 * BN_mod_exp may produce incorrect results on x86_64 3565 3566 There is a carry propagating bug in the x86_64 Montgomery squaring 3567 procedure. No EC algorithms are affected. Analysis suggests that attacks 3568 against RSA and DSA as a result of this defect would be very difficult to 3569 perform and are not believed likely. Attacks against DH are considered just 3570 feasible (although very difficult) because most of the work necessary to 3571 deduce information about a private key may be performed offline. The amount 3572 of resources required for such an attack would be very significant and 3573 likely only accessible to a limited number of attackers. An attacker would 3574 additionally need online access to an unpatched system using the target 3575 private key in a scenario with persistent DH parameters and a private 3576 key that is shared between multiple clients. For example this can occur by 3577 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 3578 similar to CVE-2015-3193 but must be treated as a separate problem. 3579 3580 This issue was reported to OpenSSL by the OSS-Fuzz project. 3581 ([CVE-2017-3732]) 3582 3583 *Andy Polyakov* 3584 3585### Changes between 1.1.0b and 1.1.0c [10 Nov 2016] 3586 3587 * ChaCha20/Poly1305 heap-buffer-overflow 3588 3589 TLS connections using `*-CHACHA20-POLY1305` ciphersuites are susceptible to 3590 a DoS attack by corrupting larger payloads. This can result in an OpenSSL 3591 crash. This issue is not considered to be exploitable beyond a DoS. 3592 3593 This issue was reported to OpenSSL by Robert Święcki (Google Security Team) 3594 ([CVE-2016-7054]) 3595 3596 *Richard Levitte* 3597 3598 * CMS Null dereference 3599 3600 Applications parsing invalid CMS structures can crash with a NULL pointer 3601 dereference. This is caused by a bug in the handling of the ASN.1 CHOICE 3602 type in OpenSSL 1.1.0 which can result in a NULL value being passed to the 3603 structure callback if an attempt is made to free certain invalid encodings. 3604 Only CHOICE structures using a callback which do not handle NULL value are 3605 affected. 3606 3607 This issue was reported to OpenSSL by Tyler Nighswander of ForAllSecure. 3608 ([CVE-2016-7053]) 3609 3610 *Stephen Henson* 3611 3612 * Montgomery multiplication may produce incorrect results 3613 3614 There is a carry propagating bug in the Broadwell-specific Montgomery 3615 multiplication procedure that handles input lengths divisible by, but 3616 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 3617 and DH private keys are impossible. This is because the subroutine in 3618 question is not used in operations with the private key itself and an input 3619 of the attacker's direct choice. Otherwise the bug can manifest itself as 3620 transient authentication and key negotiation failures or reproducible 3621 erroneous outcome of public-key operations with specially crafted input. 3622 Among EC algorithms only Brainpool P-512 curves are affected and one 3623 presumably can attack ECDH key negotiation. Impact was not analyzed in 3624 detail, because pre-requisites for attack are considered unlikely. Namely 3625 multiple clients have to choose the curve in question and the server has to 3626 share the private key among them, neither of which is default behaviour. 3627 Even then only clients that chose the curve will be affected. 3628 3629 This issue was publicly reported as transient failures and was not 3630 initially recognized as a security issue. Thanks to Richard Morgan for 3631 providing reproducible case. 3632 ([CVE-2016-7055]) 3633 3634 *Andy Polyakov* 3635 3636 * Removed automatic addition of RPATH in shared libraries and executables, 3637 as this was a remainder from OpenSSL 1.0.x and isn't needed any more. 3638 3639 *Richard Levitte* 3640 3641### Changes between 1.1.0a and 1.1.0b [26 Sep 2016] 3642 3643 * Fix Use After Free for large message sizes 3644 3645 The patch applied to address CVE-2016-6307 resulted in an issue where if a 3646 message larger than approx 16k is received then the underlying buffer to 3647 store the incoming message is reallocated and moved. Unfortunately a 3648 dangling pointer to the old location is left which results in an attempt to 3649 write to the previously freed location. This is likely to result in a 3650 crash, however it could potentially lead to execution of arbitrary code. 3651 3652 This issue only affects OpenSSL 1.1.0a. 3653 3654 This issue was reported to OpenSSL by Robert Święcki. 3655 ([CVE-2016-6309]) 3656 3657 *Matt Caswell* 3658 3659### Changes between 1.1.0 and 1.1.0a [22 Sep 2016] 3660 3661 * OCSP Status Request extension unbounded memory growth 3662 3663 A malicious client can send an excessively large OCSP Status Request 3664 extension. If that client continually requests renegotiation, sending a 3665 large OCSP Status Request extension each time, then there will be unbounded 3666 memory growth on the server. This will eventually lead to a Denial Of 3667 Service attack through memory exhaustion. Servers with a default 3668 configuration are vulnerable even if they do not support OCSP. Builds using 3669 the "no-ocsp" build time option are not affected. 3670 3671 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 3672 ([CVE-2016-6304]) 3673 3674 *Matt Caswell* 3675 3676 * SSL_peek() hang on empty record 3677 3678 OpenSSL 1.1.0 SSL/TLS will hang during a call to SSL_peek() if the peer 3679 sends an empty record. This could be exploited by a malicious peer in a 3680 Denial Of Service attack. 3681 3682 This issue was reported to OpenSSL by Alex Gaynor. 3683 ([CVE-2016-6305]) 3684 3685 *Matt Caswell* 3686 3687 * Excessive allocation of memory in tls_get_message_header() and 3688 dtls1_preprocess_fragment() 3689 3690 A (D)TLS message includes 3 bytes for its length in the header for the 3691 message. This would allow for messages up to 16Mb in length. Messages of 3692 this length are excessive and OpenSSL includes a check to ensure that a 3693 peer is sending reasonably sized messages in order to avoid too much memory 3694 being consumed to service a connection. A flaw in the logic of version 3695 1.1.0 means that memory for the message is allocated too early, prior to 3696 the excessive message length check. Due to way memory is allocated in 3697 OpenSSL this could mean an attacker could force up to 21Mb to be allocated 3698 to service a connection. This could lead to a Denial of Service through 3699 memory exhaustion. However, the excessive message length check still takes 3700 place, and this would cause the connection to immediately fail. Assuming 3701 that the application calls SSL_free() on the failed connection in a timely 3702 manner then the 21Mb of allocated memory will then be immediately freed 3703 again. Therefore the excessive memory allocation will be transitory in 3704 nature. This then means that there is only a security impact if: 3705 3706 1) The application does not call SSL_free() in a timely manner in the event 3707 that the connection fails 3708 or 3709 2) The application is working in a constrained environment where there is 3710 very little free memory 3711 or 3712 3) The attacker initiates multiple connection attempts such that there are 3713 multiple connections in a state where memory has been allocated for the 3714 connection; SSL_free() has not yet been called; and there is insufficient 3715 memory to service the multiple requests. 3716 3717 Except in the instance of (1) above any Denial Of Service is likely to be 3718 transitory because as soon as the connection fails the memory is 3719 subsequently freed again in the SSL_free() call. However there is an 3720 increased risk during this period of application crashes due to the lack of 3721 memory - which would then mean a more serious Denial of Service. 3722 3723 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 3724 (CVE-2016-6307 and CVE-2016-6308) 3725 3726 *Matt Caswell* 3727 3728 * solaris-x86-cc, i.e. 32-bit configuration with vendor compiler, 3729 had to be removed. Primary reason is that vendor assembler can't 3730 assemble our modules with -KPIC flag. As result it, assembly 3731 support, was not even available as option. But its lack means 3732 lack of side-channel resistant code, which is incompatible with 3733 security by todays standards. Fortunately gcc is readily available 3734 prepackaged option, which we firmly point at... 3735 3736 *Andy Polyakov* 3737 3738### Changes between 1.0.2h and 1.1.0 [25 Aug 2016] 3739 3740 * Windows command-line tool supports UTF-8 opt-in option for arguments 3741 and console input. Setting OPENSSL_WIN32_UTF8 environment variable 3742 (to any value) allows Windows user to access PKCS#12 file generated 3743 with Windows CryptoAPI and protected with non-ASCII password, as well 3744 as files generated under UTF-8 locale on Linux also protected with 3745 non-ASCII password. 3746 3747 *Andy Polyakov* 3748 3749 * To mitigate the SWEET32 attack ([CVE-2016-2183]), 3DES cipher suites 3750 have been disabled by default and removed from DEFAULT, just like RC4. 3751 See the RC4 item below to re-enable both. 3752 3753 *Rich Salz* 3754 3755 * The method for finding the storage location for the Windows RAND seed file 3756 has changed. First we check %RANDFILE%. If that is not set then we check 3757 the directories %HOME%, %USERPROFILE% and %SYSTEMROOT% in that order. If 3758 all else fails we fall back to C:\. 3759 3760 *Matt Caswell* 3761 3762 * The EVP_EncryptUpdate() function has had its return type changed from void 3763 to int. A return of 0 indicates and error while a return of 1 indicates 3764 success. 3765 3766 *Matt Caswell* 3767 3768 * The flags RSA_FLAG_NO_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME and 3769 DH_FLAG_NO_EXP_CONSTTIME which previously provided the ability to switch 3770 off the constant time implementation for RSA, DSA and DH have been made 3771 no-ops and deprecated. 3772 3773 *Matt Caswell* 3774 3775 * Windows RAND implementation was simplified to only get entropy by 3776 calling CryptGenRandom(). Various other RAND-related tickets 3777 were also closed. 3778 3779 *Joseph Wylie Yandle, Rich Salz* 3780 3781 * The stack and lhash API's were renamed to start with `OPENSSL_SK_` 3782 and `OPENSSL_LH_`, respectively. The old names are available 3783 with API compatibility. They new names are now completely documented. 3784 3785 *Rich Salz* 3786 3787 * Unify TYPE_up_ref(obj) methods signature. 3788 SSL_CTX_up_ref(), SSL_up_ref(), X509_up_ref(), EVP_PKEY_up_ref(), 3789 X509_CRL_up_ref(), X509_OBJECT_up_ref_count() methods are now returning an 3790 int (instead of void) like all others TYPE_up_ref() methods. 3791 So now these methods also check the return value of CRYPTO_atomic_add(), 3792 and the validity of object reference counter. 3793 3794 *fdasilvayy@gmail.com* 3795 3796 * With Windows Visual Studio builds, the .pdb files are installed 3797 alongside the installed libraries and executables. For a static 3798 library installation, ossl_static.pdb is the associate compiler 3799 generated .pdb file to be used when linking programs. 3800 3801 *Richard Levitte* 3802 3803 * Remove openssl.spec. Packaging files belong with the packagers. 3804 3805 *Richard Levitte* 3806 3807 * Automatic Darwin/OSX configuration has had a refresh, it will now 3808 recognise x86_64 architectures automatically. You can still decide 3809 to build for a different bitness with the environment variable 3810 KERNEL_BITS (can be 32 or 64), for example: 3811 3812 KERNEL_BITS=32 ./config 3813 3814 *Richard Levitte* 3815 3816 * Change default algorithms in pkcs8 utility to use PKCS#5 v2.0, 3817 256 bit AES and HMAC with SHA256. 3818 3819 *Steve Henson* 3820 3821 * Remove support for MIPS o32 ABI on IRIX (and IRIX only). 3822 3823 *Andy Polyakov* 3824 3825 * Triple-DES ciphers have been moved from HIGH to MEDIUM. 3826 3827 *Rich Salz* 3828 3829 * To enable users to have their own config files and build file templates, 3830 Configure looks in the directory indicated by the environment variable 3831 OPENSSL_LOCAL_CONFIG_DIR as well as the in-source Configurations/ 3832 directory. On VMS, OPENSSL_LOCAL_CONFIG_DIR is expected to be a logical 3833 name and is used as is. 3834 3835 *Richard Levitte* 3836 3837 * The following datatypes were made opaque: X509_OBJECT, X509_STORE_CTX, 3838 X509_STORE, X509_LOOKUP, and X509_LOOKUP_METHOD. The unused type 3839 X509_CERT_FILE_CTX was removed. 3840 3841 *Rich Salz* 3842 3843 * "shared" builds are now the default. To create only static libraries use 3844 the "no-shared" Configure option. 3845 3846 *Matt Caswell* 3847 3848 * Remove the no-aes, no-hmac, no-rsa, no-sha and no-md5 Configure options. 3849 All of these option have not worked for some while and are fundamental 3850 algorithms. 3851 3852 *Matt Caswell* 3853 3854 * Make various cleanup routines no-ops and mark them as deprecated. Most 3855 global cleanup functions are no longer required because they are handled 3856 via auto-deinit (see OPENSSL_init_crypto and OPENSSL_init_ssl man pages). 3857 Explicitly de-initing can cause problems (e.g. where a library that uses 3858 OpenSSL de-inits, but an application is still using it). The affected 3859 functions are CONF_modules_free(), ENGINE_cleanup(), OBJ_cleanup(), 3860 EVP_cleanup(), BIO_sock_cleanup(), CRYPTO_cleanup_all_ex_data(), 3861 RAND_cleanup(), SSL_COMP_free_compression_methods(), ERR_free_strings() and 3862 COMP_zlib_cleanup(). 3863 3864 *Matt Caswell* 3865 3866 * --strict-warnings no longer enables runtime debugging options 3867 such as REF_DEBUG. Instead, debug options are automatically 3868 enabled with '--debug' builds. 3869 3870 *Andy Polyakov, Emilia Käsper* 3871 3872 * Made DH and DH_METHOD opaque. The structures for managing DH objects 3873 have been moved out of the public header files. New functions for managing 3874 these have been added. 3875 3876 *Matt Caswell* 3877 3878 * Made RSA and RSA_METHOD opaque. The structures for managing RSA 3879 objects have been moved out of the public header files. New 3880 functions for managing these have been added. 3881 3882 *Richard Levitte* 3883 3884 * Made DSA and DSA_METHOD opaque. The structures for managing DSA objects 3885 have been moved out of the public header files. New functions for managing 3886 these have been added. 3887 3888 *Matt Caswell* 3889 3890 * Made BIO and BIO_METHOD opaque. The structures for managing BIOs have been 3891 moved out of the public header files. New functions for managing these 3892 have been added. 3893 3894 *Matt Caswell* 3895 3896 * Removed no-rijndael as a config option. Rijndael is an old name for AES. 3897 3898 *Matt Caswell* 3899 3900 * Removed the mk1mf build scripts. 3901 3902 *Richard Levitte* 3903 3904 * Headers are now wrapped, if necessary, with OPENSSL_NO_xxx, so 3905 it is always safe to #include a header now. 3906 3907 *Rich Salz* 3908 3909 * Removed the aged BC-32 config and all its supporting scripts 3910 3911 *Richard Levitte* 3912 3913 * Removed support for Ultrix, Netware, and OS/2. 3914 3915 *Rich Salz* 3916 3917 * Add support for HKDF. 3918 3919 *Alessandro Ghedini* 3920 3921 * Add support for blake2b and blake2s 3922 3923 *Bill Cox* 3924 3925 * Added support for "pipelining". Ciphers that have the 3926 EVP_CIPH_FLAG_PIPELINE flag set have a capability to process multiple 3927 encryptions/decryptions simultaneously. There are currently no built-in 3928 ciphers with this property but the expectation is that engines will be able 3929 to offer it to significantly improve throughput. Support has been extended 3930 into libssl so that multiple records for a single connection can be 3931 processed in one go (for >=TLS 1.1). 3932 3933 *Matt Caswell* 3934 3935 * Added the AFALG engine. This is an async capable engine which is able to 3936 offload work to the Linux kernel. In this initial version it only supports 3937 AES128-CBC. The kernel must be version 4.1.0 or greater. 3938 3939 *Catriona Lucey* 3940 3941 * OpenSSL now uses a new threading API. It is no longer necessary to 3942 set locking callbacks to use OpenSSL in a multi-threaded environment. There 3943 are two supported threading models: pthreads and windows threads. It is 3944 also possible to configure OpenSSL at compile time for "no-threads". The 3945 old threading API should no longer be used. The functions have been 3946 replaced with "no-op" compatibility macros. 3947 3948 *Alessandro Ghedini, Matt Caswell* 3949 3950 * Modify behavior of ALPN to invoke callback after SNI/servername 3951 callback, such that updates to the SSL_CTX affect ALPN. 3952 3953 *Todd Short* 3954 3955 * Add SSL_CIPHER queries for authentication and key-exchange. 3956 3957 *Todd Short* 3958 3959 * Changes to the DEFAULT cipherlist: 3960 - Prefer (EC)DHE handshakes over plain RSA. 3961 - Prefer AEAD ciphers over legacy ciphers. 3962 - Prefer ECDSA over RSA when both certificates are available. 3963 - Prefer TLSv1.2 ciphers/PRF. 3964 - Remove DSS, SEED, IDEA, CAMELLIA, and AES-CCM from the 3965 default cipherlist. 3966 3967 *Emilia Käsper* 3968 3969 * Change the ECC default curve list to be this, in order: x25519, 3970 secp256r1, secp521r1, secp384r1. 3971 3972 *Rich Salz* 3973 3974 * RC4 based libssl ciphersuites are now classed as "weak" ciphers and are 3975 disabled by default. They can be re-enabled using the 3976 enable-weak-ssl-ciphers option to Configure. 3977 3978 *Matt Caswell* 3979 3980 * If the server has ALPN configured, but supports no protocols that the 3981 client advertises, send a fatal "no_application_protocol" alert. 3982 This behaviour is SHALL in RFC 7301, though it isn't universally 3983 implemented by other servers. 3984 3985 *Emilia Käsper* 3986 3987 * Add X25519 support. 3988 Add ASN.1 and EVP_PKEY methods for X25519. This includes support 3989 for public and private key encoding using the format documented in 3990 draft-ietf-curdle-pkix-02. The corresponding EVP_PKEY method supports 3991 key generation and key derivation. 3992 3993 TLS support complies with draft-ietf-tls-rfc4492bis-08 and uses 3994 X25519(29). 3995 3996 *Steve Henson* 3997 3998 * Deprecate SRP_VBASE_get_by_user. 3999 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 4000 In order to fix an unavoidable memory leak ([CVE-2016-0798]), 4001 SRP_VBASE_get_by_user was changed to ignore the "fake user" SRP 4002 seed, even if the seed is configured. 4003 4004 Users should use SRP_VBASE_get1_by_user instead. Note that in 4005 SRP_VBASE_get1_by_user, caller must free the returned value. Note 4006 also that even though configuring the SRP seed attempts to hide 4007 invalid usernames by continuing the handshake with fake 4008 credentials, this behaviour is not constant time and no strong 4009 guarantees are made that the handshake is indistinguishable from 4010 that of a valid user. 4011 4012 *Emilia Käsper* 4013 4014 * Configuration change; it's now possible to build dynamic engines 4015 without having to build shared libraries and vice versa. This 4016 only applies to the engines in `engines/`, those in `crypto/engine/` 4017 will always be built into libcrypto (i.e. "static"). 4018 4019 Building dynamic engines is enabled by default; to disable, use 4020 the configuration option "disable-dynamic-engine". 4021 4022 The only requirements for building dynamic engines are the 4023 presence of the DSO module and building with position independent 4024 code, so they will also automatically be disabled if configuring 4025 with "disable-dso" or "disable-pic". 4026 4027 The macros OPENSSL_NO_STATIC_ENGINE and OPENSSL_NO_DYNAMIC_ENGINE 4028 are also taken away from openssl/opensslconf.h, as they are 4029 irrelevant. 4030 4031 *Richard Levitte* 4032 4033 * Configuration change; if there is a known flag to compile 4034 position independent code, it will always be applied on the 4035 libcrypto and libssl object files, and never on the application 4036 object files. This means other libraries that use routines from 4037 libcrypto / libssl can be made into shared libraries regardless 4038 of how OpenSSL was configured. 4039 4040 If this isn't desirable, the configuration options "disable-pic" 4041 or "no-pic" can be used to disable the use of PIC. This will 4042 also disable building shared libraries and dynamic engines. 4043 4044 *Richard Levitte* 4045 4046 * Removed JPAKE code. It was experimental and has no wide use. 4047 4048 *Rich Salz* 4049 4050 * The INSTALL_PREFIX Makefile variable has been renamed to 4051 DESTDIR. That makes for less confusion on what this variable 4052 is for. Also, the configuration option --install_prefix is 4053 removed. 4054 4055 *Richard Levitte* 4056 4057 * Heartbeat for TLS has been removed and is disabled by default 4058 for DTLS; configure with enable-heartbeats. Code that uses the 4059 old #define's might need to be updated. 4060 4061 *Emilia Käsper, Rich Salz* 4062 4063 * Rename REF_CHECK to REF_DEBUG. 4064 4065 *Rich Salz* 4066 4067 * New "unified" build system 4068 4069 The "unified" build system is aimed to be a common system for all 4070 platforms we support. With it comes new support for VMS. 4071 4072 This system builds supports building in a different directory tree 4073 than the source tree. It produces one Makefile (for unix family 4074 or lookalikes), or one descrip.mms (for VMS). 4075 4076 The source of information to make the Makefile / descrip.mms is 4077 small files called 'build.info', holding the necessary 4078 information for each directory with source to compile, and a 4079 template in Configurations, like unix-Makefile.tmpl or 4080 descrip.mms.tmpl. 4081 4082 With this change, the library names were also renamed on Windows 4083 and on VMS. They now have names that are closer to the standard 4084 on Unix, and include the major version number, and in certain 4085 cases, the architecture they are built for. See "Notes on shared 4086 libraries" in INSTALL. 4087 4088 We rely heavily on the perl module Text::Template. 4089 4090 *Richard Levitte* 4091 4092 * Added support for auto-initialisation and de-initialisation of the library. 4093 OpenSSL no longer requires explicit init or deinit routines to be called, 4094 except in certain circumstances. See the OPENSSL_init_crypto() and 4095 OPENSSL_init_ssl() man pages for further information. 4096 4097 *Matt Caswell* 4098 4099 * The arguments to the DTLSv1_listen function have changed. Specifically the 4100 "peer" argument is now expected to be a BIO_ADDR object. 4101 4102 * Rewrite of BIO networking library. The BIO library lacked consistent 4103 support of IPv6, and adding it required some more extensive 4104 modifications. This introduces the BIO_ADDR and BIO_ADDRINFO types, 4105 which hold all types of addresses and chains of address information. 4106 It also introduces a new API, with functions like BIO_socket, 4107 BIO_connect, BIO_listen, BIO_lookup and a rewrite of BIO_accept. 4108 The source/sink BIOs BIO_s_connect, BIO_s_accept and BIO_s_datagram 4109 have been adapted accordingly. 4110 4111 *Richard Levitte* 4112 4113 * RSA_padding_check_PKCS1_type_1 now accepts inputs with and without 4114 the leading 0-byte. 4115 4116 *Emilia Käsper* 4117 4118 * CRIME protection: disable compression by default, even if OpenSSL is 4119 compiled with zlib enabled. Applications can still enable compression 4120 by calling SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION), or by 4121 using the SSL_CONF library to configure compression. 4122 4123 *Emilia Käsper* 4124 4125 * The signature of the session callback configured with 4126 SSL_CTX_sess_set_get_cb was changed. The read-only input buffer 4127 was explicitly marked as `const unsigned char*` instead of 4128 `unsigned char*`. 4129 4130 *Emilia Käsper* 4131 4132 * Always DPURIFY. Remove the use of uninitialized memory in the 4133 RNG, and other conditional uses of DPURIFY. This makes -DPURIFY a no-op. 4134 4135 *Emilia Käsper* 4136 4137 * Removed many obsolete configuration items, including 4138 DES_PTR, DES_RISC1, DES_RISC2, DES_INT 4139 MD2_CHAR, MD2_INT, MD2_LONG 4140 BF_PTR, BF_PTR2 4141 IDEA_SHORT, IDEA_LONG 4142 RC2_SHORT, RC2_LONG, RC4_LONG, RC4_CHUNK, RC4_INDEX 4143 4144 *Rich Salz, with advice from Andy Polyakov* 4145 4146 * Many BN internals have been moved to an internal header file. 4147 4148 *Rich Salz with help from Andy Polyakov* 4149 4150 * Configuration and writing out the results from it has changed. 4151 Files such as Makefile include/openssl/opensslconf.h and are now 4152 produced through general templates, such as Makefile.in and 4153 crypto/opensslconf.h.in and some help from the perl module 4154 Text::Template. 4155 4156 Also, the center of configuration information is no longer 4157 Makefile. Instead, Configure produces a perl module in 4158 configdata.pm which holds most of the config data (in the hash 4159 table %config), the target data that comes from the target 4160 configuration in one of the `Configurations/*.conf` files (in 4161 %target). 4162 4163 *Richard Levitte* 4164 4165 * To clarify their intended purposes, the Configure options 4166 --prefix and --openssldir change their semantics, and become more 4167 straightforward and less interdependent. 4168 4169 --prefix shall be used exclusively to give the location INSTALLTOP 4170 where programs, scripts, libraries, include files and manuals are 4171 going to be installed. The default is now /usr/local. 4172 4173 --openssldir shall be used exclusively to give the default 4174 location OPENSSLDIR where certificates, private keys, CRLs are 4175 managed. This is also where the default openssl.cnf gets 4176 installed. 4177 If the directory given with this option is a relative path, the 4178 values of both the --prefix value and the --openssldir value will 4179 be combined to become OPENSSLDIR. 4180 The default for --openssldir is INSTALLTOP/ssl. 4181 4182 Anyone who uses --openssldir to specify where OpenSSL is to be 4183 installed MUST change to use --prefix instead. 4184 4185 *Richard Levitte* 4186 4187 * The GOST engine was out of date and therefore it has been removed. An up 4188 to date GOST engine is now being maintained in an external repository. 4189 See: <https://wiki.openssl.org/index.php/Binaries>. Libssl still retains 4190 support for GOST ciphersuites (these are only activated if a GOST engine 4191 is present). 4192 4193 *Matt Caswell* 4194 4195 * EGD is no longer supported by default; use enable-egd when 4196 configuring. 4197 4198 *Ben Kaduk and Rich Salz* 4199 4200 * The distribution now has Makefile.in files, which are used to 4201 create Makefile's when Configure is run. *Configure must be run 4202 before trying to build now.* 4203 4204 *Rich Salz* 4205 4206 * The return value for SSL_CIPHER_description() for error conditions 4207 has changed. 4208 4209 *Rich Salz* 4210 4211 * Support for RFC6698/RFC7671 DANE TLSA peer authentication. 4212 4213 Obtaining and performing DNSSEC validation of TLSA records is 4214 the application's responsibility. The application provides 4215 the TLSA records of its choice to OpenSSL, and these are then 4216 used to authenticate the peer. 4217 4218 The TLSA records need not even come from DNS. They can, for 4219 example, be used to implement local end-entity certificate or 4220 trust-anchor "pinning", where the "pin" data takes the form 4221 of TLSA records, which can augment or replace verification 4222 based on the usual WebPKI public certification authorities. 4223 4224 *Viktor Dukhovni* 4225 4226 * Revert default OPENSSL_NO_DEPRECATED setting. Instead OpenSSL 4227 continues to support deprecated interfaces in default builds. 4228 However, applications are strongly advised to compile their 4229 source files with -DOPENSSL_API_COMPAT=0x10100000L, which hides 4230 the declarations of all interfaces deprecated in 0.9.8, 1.0.0 4231 or the 1.1.0 releases. 4232 4233 In environments in which all applications have been ported to 4234 not use any deprecated interfaces OpenSSL's Configure script 4235 should be used with the --api=1.1.0 option to entirely remove 4236 support for the deprecated features from the library and 4237 unconditionally disable them in the installed headers. 4238 Essentially the same effect can be achieved with the "no-deprecated" 4239 argument to Configure, except that this will always restrict 4240 the build to just the latest API, rather than a fixed API 4241 version. 4242 4243 As applications are ported to future revisions of the API, 4244 they should update their compile-time OPENSSL_API_COMPAT define 4245 accordingly, but in most cases should be able to continue to 4246 compile with later releases. 4247 4248 The OPENSSL_API_COMPAT versions for 1.0.0, and 0.9.8 are 4249 0x10000000L and 0x00908000L, respectively. However those 4250 versions did not support the OPENSSL_API_COMPAT feature, and 4251 so applications are not typically tested for explicit support 4252 of just the undeprecated features of either release. 4253 4254 *Viktor Dukhovni* 4255 4256 * Add support for setting the minimum and maximum supported protocol. 4257 It can bet set via the SSL_set_min_proto_version() and 4258 SSL_set_max_proto_version(), or via the SSL_CONF's MinProtocol and 4259 MaxProtocol. It's recommended to use the new APIs to disable 4260 protocols instead of disabling individual protocols using 4261 SSL_set_options() or SSL_CONF's Protocol. This change also 4262 removes support for disabling TLS 1.2 in the OpenSSL TLS 4263 client at compile time by defining OPENSSL_NO_TLS1_2_CLIENT. 4264 4265 *Kurt Roeckx* 4266 4267 * Support for ChaCha20 and Poly1305 added to libcrypto and libssl. 4268 4269 *Andy Polyakov* 4270 4271 * New EC_KEY_METHOD, this replaces the older ECDSA_METHOD and ECDH_METHOD 4272 and integrates ECDSA and ECDH functionality into EC. Implementations can 4273 now redirect key generation and no longer need to convert to or from 4274 ECDSA_SIG format. 4275 4276 Note: the ecdsa.h and ecdh.h headers are now no longer needed and just 4277 include the ec.h header file instead. 4278 4279 *Steve Henson* 4280 4281 * Remove support for all 40 and 56 bit ciphers. This includes all the export 4282 ciphers who are no longer supported and drops support the ephemeral RSA key 4283 exchange. The LOW ciphers currently doesn't have any ciphers in it. 4284 4285 *Kurt Roeckx* 4286 4287 * Made EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX, EVP_CIPHER and HMAC_CTX 4288 opaque. For HMAC_CTX, the following constructors and destructors 4289 were added: 4290 4291 HMAC_CTX *HMAC_CTX_new(void); 4292 void HMAC_CTX_free(HMAC_CTX *ctx); 4293 4294 For EVP_MD and EVP_CIPHER, complete APIs to create, fill and 4295 destroy such methods has been added. See EVP_MD_meth_new(3) and 4296 EVP_CIPHER_meth_new(3) for documentation. 4297 4298 Additional changes: 4299 1) `EVP_MD_CTX_cleanup()`, `EVP_CIPHER_CTX_cleanup()` and 4300 `HMAC_CTX_cleanup()` were removed. `HMAC_CTX_reset()` and 4301 `EVP_MD_CTX_reset()` should be called instead to reinitialise 4302 an already created structure. 4303 2) For consistency with the majority of our object creators and 4304 destructors, `EVP_MD_CTX_(create|destroy)` were renamed to 4305 `EVP_MD_CTX_(new|free)`. The old names are retained as macros 4306 for deprecated builds. 4307 4308 *Richard Levitte* 4309 4310 * Added ASYNC support. Libcrypto now includes the async sub-library to enable 4311 cryptographic operations to be performed asynchronously as long as an 4312 asynchronous capable engine is used. See the ASYNC_start_job() man page for 4313 further details. Libssl has also had this capability integrated with the 4314 introduction of the new mode SSL_MODE_ASYNC and associated error 4315 SSL_ERROR_WANT_ASYNC. See the SSL_CTX_set_mode() and SSL_get_error() man 4316 pages. This work was developed in partnership with Intel Corp. 4317 4318 *Matt Caswell* 4319 4320 * SSL_{CTX_}set_ecdh_auto() has been removed and ECDH is support is 4321 always enabled now. If you want to disable the support you should 4322 exclude it using the list of supported ciphers. This also means that the 4323 "-no_ecdhe" option has been removed from s_server. 4324 4325 *Kurt Roeckx* 4326 4327 * SSL_{CTX}_set_tmp_ecdh() which can set 1 EC curve now internally calls 4328 SSL_{CTX_}set1_curves() which can set a list. 4329 4330 *Kurt Roeckx* 4331 4332 * Remove support for SSL_{CTX_}set_tmp_ecdh_callback(). You should set the 4333 curve you want to support using SSL_{CTX_}set1_curves(). 4334 4335 *Kurt Roeckx* 4336 4337 * State machine rewrite. The state machine code has been significantly 4338 refactored in order to remove much duplication of code and solve issues 4339 with the old code (see [ssl/statem/README.md](ssl/statem/README.md) for 4340 further details). This change does have some associated API changes. 4341 Notably the SSL_state() function has been removed and replaced by 4342 SSL_get_state which now returns an "OSSL_HANDSHAKE_STATE" instead of an int. 4343 SSL_set_state() has been removed altogether. The previous handshake states 4344 defined in ssl.h and ssl3.h have also been removed. 4345 4346 *Matt Caswell* 4347 4348 * All instances of the string "ssleay" in the public API were replaced 4349 with OpenSSL (case-matching; e.g., OPENSSL_VERSION for #define's) 4350 Some error codes related to internal RSA_eay API's were renamed. 4351 4352 *Rich Salz* 4353 4354 * The demo files in crypto/threads were moved to demo/threads. 4355 4356 *Rich Salz* 4357 4358 * Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron, gmp, 4359 sureware and ubsec. 4360 4361 *Matt Caswell, Rich Salz* 4362 4363 * New ASN.1 embed macro. 4364 4365 New ASN.1 macro ASN1_EMBED. This is the same as ASN1_SIMPLE except the 4366 structure is not allocated: it is part of the parent. That is instead of 4367 4368 FOO *x; 4369 4370 it must be: 4371 4372 FOO x; 4373 4374 This reduces memory fragmentation and make it impossible to accidentally 4375 set a mandatory field to NULL. 4376 4377 This currently only works for some fields specifically a SEQUENCE, CHOICE, 4378 or ASN1_STRING type which is part of a parent SEQUENCE. Since it is 4379 equivalent to ASN1_SIMPLE it cannot be tagged, OPTIONAL, SET OF or 4380 SEQUENCE OF. 4381 4382 *Steve Henson* 4383 4384 * Remove EVP_CHECK_DES_KEY, a compile-time option that never compiled. 4385 4386 *Emilia Käsper* 4387 4388 * Removed DES and RC4 ciphersuites from DEFAULT. Also removed RC2 although 4389 in 1.0.2 EXPORT was already removed and the only RC2 ciphersuite is also 4390 an EXPORT one. COMPLEMENTOFDEFAULT has been updated accordingly to add 4391 DES and RC4 ciphersuites. 4392 4393 *Matt Caswell* 4394 4395 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 4396 This changes the decoding behaviour for some invalid messages, 4397 though the change is mostly in the more lenient direction, and 4398 legacy behaviour is preserved as much as possible. 4399 4400 *Emilia Käsper* 4401 4402 * Fix no-stdio build. 4403 *David Woodhouse <David.Woodhouse@intel.com> and also* 4404 *Ivan Nestlerode <ivan.nestlerode@sonos.com>* 4405 4406 * New testing framework 4407 The testing framework has been largely rewritten and is now using 4408 perl and the perl modules Test::Harness and an extended variant of 4409 Test::More called OpenSSL::Test to do its work. All test scripts in 4410 test/ have been rewritten into test recipes, and all direct calls to 4411 executables in test/Makefile have become individual recipes using the 4412 simplified testing OpenSSL::Test::Simple. 4413 4414 For documentation on our testing modules, do: 4415 4416 perldoc test/testlib/OpenSSL/Test/Simple.pm 4417 perldoc test/testlib/OpenSSL/Test.pm 4418 4419 *Richard Levitte* 4420 4421 * Revamped memory debug; only -DCRYPTO_MDEBUG and -DCRYPTO_MDEBUG_ABORT 4422 are used; the latter aborts on memory leaks (usually checked on exit). 4423 Some undocumented "set malloc, etc., hooks" functions were removed 4424 and others were changed. All are now documented. 4425 4426 *Rich Salz* 4427 4428 * In DSA_generate_parameters_ex, if the provided seed is too short, 4429 return an error 4430 4431 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 4432 4433 * Rewrite PSK to support ECDHE_PSK, DHE_PSK and RSA_PSK. Add ciphersuites 4434 from RFC4279, RFC4785, RFC5487, RFC5489. 4435 4436 Thanks to Christian J. Dietrich and Giuseppe D'Angelo for the 4437 original RSA_PSK patch. 4438 4439 *Steve Henson* 4440 4441 * Dropped support for the SSL3_FLAGS_DELAY_CLIENT_FINISHED flag. This SSLeay 4442 era flag was never set throughout the codebase (only read). Also removed 4443 SSL3_FLAGS_POP_BUFFER which was only used if 4444 SSL3_FLAGS_DELAY_CLIENT_FINISHED was also set. 4445 4446 *Matt Caswell* 4447 4448 * Changed the default name options in the "ca", "crl", "req" and "x509" 4449 to be "oneline" instead of "compat". 4450 4451 *Richard Levitte* 4452 4453 * Remove SSL_OP_TLS_BLOCK_PADDING_BUG. This is SSLeay legacy, we're 4454 not aware of clients that still exhibit this bug, and the workaround 4455 hasn't been working properly for a while. 4456 4457 *Emilia Käsper* 4458 4459 * The return type of BIO_number_read() and BIO_number_written() as well as 4460 the corresponding num_read and num_write members in the BIO structure has 4461 changed from unsigned long to uint64_t. On platforms where an unsigned 4462 long is 32 bits (e.g. Windows) these counters could overflow if >4Gb is 4463 transferred. 4464 4465 *Matt Caswell* 4466 4467 * Given the pervasive nature of TLS extensions it is inadvisable to run 4468 OpenSSL without support for them. It also means that maintaining 4469 the OPENSSL_NO_TLSEXT option within the code is very invasive (and probably 4470 not well tested). Therefore the OPENSSL_NO_TLSEXT option has been removed. 4471 4472 *Matt Caswell* 4473 4474 * Removed support for the two export grade static DH ciphersuites 4475 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites 4476 were newly added (along with a number of other static DH ciphersuites) to 4477 1.0.2. However the two export ones have *never* worked since they were 4478 introduced. It seems strange in any case to be adding new export 4479 ciphersuites, and given "logjam" it also does not seem correct to fix them. 4480 4481 *Matt Caswell* 4482 4483 * Version negotiation has been rewritten. In particular SSLv23_method(), 4484 SSLv23_client_method() and SSLv23_server_method() have been deprecated, 4485 and turned into macros which simply call the new preferred function names 4486 TLS_method(), TLS_client_method() and TLS_server_method(). All new code 4487 should use the new names instead. Also as part of this change the ssl23.h 4488 header file has been removed. 4489 4490 *Matt Caswell* 4491 4492 * Support for Kerberos ciphersuites in TLS (RFC2712) has been removed. This 4493 code and the associated standard is no longer considered fit-for-purpose. 4494 4495 *Matt Caswell* 4496 4497 * RT2547 was closed. When generating a private key, try to make the 4498 output file readable only by the owner. This behavior change might 4499 be noticeable when interacting with other software. 4500 4501 * Documented all exdata functions. Added CRYPTO_free_ex_index. 4502 Added a test. 4503 4504 *Rich Salz* 4505 4506 * Added HTTP GET support to the ocsp command. 4507 4508 *Rich Salz* 4509 4510 * Changed default digest for the dgst and enc commands from MD5 to 4511 sha256 4512 4513 *Rich Salz* 4514 4515 * RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead. 4516 4517 *Matt Caswell* 4518 4519 * Added support for TLS extended master secret from 4520 draft-ietf-tls-session-hash-03.txt. Thanks for Alfredo Pironti for an 4521 initial patch which was a great help during development. 4522 4523 *Steve Henson* 4524 4525 * All libssl internal structures have been removed from the public header 4526 files, and the OPENSSL_NO_SSL_INTERN option has been removed (since it is 4527 now redundant). Users should not attempt to access internal structures 4528 directly. Instead they should use the provided API functions. 4529 4530 *Matt Caswell* 4531 4532 * config has been changed so that by default OPENSSL_NO_DEPRECATED is used. 4533 Access to deprecated functions can be re-enabled by running config with 4534 "enable-deprecated". In addition applications wishing to use deprecated 4535 functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour 4536 will, by default, disable some transitive includes that previously existed 4537 in the header files (e.g. ec.h will no longer, by default, include bn.h) 4538 4539 *Matt Caswell* 4540 4541 * Added support for OCB mode. OpenSSL has been granted a patent license 4542 compatible with the OpenSSL license for use of OCB. Details are available 4543 at <https://www.openssl.org/source/OCB-patent-grant-OpenSSL.pdf>. Support 4544 for OCB can be removed by calling config with no-ocb. 4545 4546 *Matt Caswell* 4547 4548 * SSLv2 support has been removed. It still supports receiving a SSLv2 4549 compatible client hello. 4550 4551 *Kurt Roeckx* 4552 4553 * Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz], 4554 done while fixing the error code for the key-too-small case. 4555 4556 *Annie Yousar <a.yousar@informatik.hu-berlin.de>* 4557 4558 * CA.sh has been removed; use CA.pl instead. 4559 4560 *Rich Salz* 4561 4562 * Removed old DES API. 4563 4564 *Rich Salz* 4565 4566 * Remove various unsupported platforms: 4567 Sony NEWS4 4568 BEOS and BEOS_R5 4569 NeXT 4570 SUNOS 4571 MPE/iX 4572 Sinix/ReliantUNIX RM400 4573 DGUX 4574 NCR 4575 Tandem 4576 Cray 4577 16-bit platforms such as WIN16 4578 4579 *Rich Salz* 4580 4581 * Clean up OPENSSL_NO_xxx #define's 4582 - Use setbuf() and remove OPENSSL_NO_SETVBUF_IONBF 4583 - Rename OPENSSL_SYSNAME_xxx to OPENSSL_SYS_xxx 4584 - OPENSSL_NO_EC{DH,DSA} merged into OPENSSL_NO_EC 4585 - OPENSSL_NO_RIPEMD160, OPENSSL_NO_RIPEMD merged into OPENSSL_NO_RMD160 4586 - OPENSSL_NO_FP_API merged into OPENSSL_NO_STDIO 4587 - Remove OPENSSL_NO_BIO OPENSSL_NO_BUFFER OPENSSL_NO_CHAIN_VERIFY 4588 OPENSSL_NO_EVP OPENSSL_NO_FIPS_ERR OPENSSL_NO_HASH_COMP 4589 OPENSSL_NO_LHASH OPENSSL_NO_OBJECT OPENSSL_NO_SPEED OPENSSL_NO_STACK 4590 OPENSSL_NO_X509 OPENSSL_NO_X509_VERIFY 4591 - Remove MS_STATIC; it's a relic from platforms <32 bits. 4592 4593 *Rich Salz* 4594 4595 * Cleaned up dead code 4596 Remove all but one '#ifdef undef' which is to be looked at. 4597 4598 *Rich Salz* 4599 4600 * Clean up calling of xxx_free routines. 4601 Just like free(), fix most of the xxx_free routines to accept 4602 NULL. Remove the non-null checks from callers. Save much code. 4603 4604 *Rich Salz* 4605 4606 * Add secure heap for storage of private keys (when possible). 4607 Add BIO_s_secmem(), CBIGNUM, etc. 4608 Contributed by Akamai Technologies under our Corporate CLA. 4609 4610 *Rich Salz* 4611 4612 * Experimental support for a new, fast, unbiased prime candidate generator, 4613 bn_probable_prime_dh_coprime(). Not currently used by any prime generator. 4614 4615 *Felix Laurie von Massenbach <felix@erbridge.co.uk>* 4616 4617 * New output format NSS in the sess_id command line tool. This allows 4618 exporting the session id and the master key in NSS keylog format. 4619 4620 *Martin Kaiser <martin@kaiser.cx>* 4621 4622 * Harmonize version and its documentation. -f flag is used to display 4623 compilation flags. 4624 4625 *mancha <mancha1@zoho.com>* 4626 4627 * Fix eckey_priv_encode so it immediately returns an error upon a failure 4628 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue. 4629 4630 *mancha <mancha1@zoho.com>* 4631 4632 * Fix some double frees. These are not thought to be exploitable. 4633 4634 *mancha <mancha1@zoho.com>* 4635 4636 * A missing bounds check in the handling of the TLS heartbeat extension 4637 can be used to reveal up to 64k of memory to a connected client or 4638 server. 4639 4640 Thanks for Neel Mehta of Google Security for discovering this bug and to 4641 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 4642 preparing the fix ([CVE-2014-0160]) 4643 4644 *Adam Langley, Bodo Moeller* 4645 4646 * Fix for the attack described in the paper "Recovering OpenSSL 4647 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 4648 by Yuval Yarom and Naomi Benger. Details can be obtained from: 4649 <http://eprint.iacr.org/2014/140> 4650 4651 Thanks to Yuval Yarom and Naomi Benger for discovering this 4652 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 4653 4654 *Yuval Yarom and Naomi Benger* 4655 4656 * Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 4657 this fixes a limitation in previous versions of OpenSSL. 4658 4659 *Steve Henson* 4660 4661 * Experimental encrypt-then-mac support. 4662 4663 Experimental support for encrypt then mac from 4664 draft-gutmann-tls-encrypt-then-mac-02.txt 4665 4666 To enable it set the appropriate extension number (0x42 for the test 4667 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42 4668 4669 For non-compliant peers (i.e. just about everything) this should have no 4670 effect. 4671 4672 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE. 4673 4674 *Steve Henson* 4675 4676 * Add EVP support for key wrapping algorithms, to avoid problems with 4677 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 4678 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 4679 algorithms and include tests cases. 4680 4681 *Steve Henson* 4682 4683 * Extend CMS code to support RSA-PSS signatures and RSA-OAEP for 4684 enveloped data. 4685 4686 *Steve Henson* 4687 4688 * Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 4689 MGF1 digest and OAEP label. 4690 4691 *Steve Henson* 4692 4693 * Make openssl verify return errors. 4694 4695 *Chris Palmer <palmer@google.com> and Ben Laurie* 4696 4697 * New function ASN1_TIME_diff to calculate the difference between two 4698 ASN1_TIME structures or one structure and the current time. 4699 4700 *Steve Henson* 4701 4702 * Update fips_test_suite to support multiple command line options. New 4703 test to induce all self test errors in sequence and check expected 4704 failures. 4705 4706 *Steve Henson* 4707 4708 * Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and 4709 sign or verify all in one operation. 4710 4711 *Steve Henson* 4712 4713 * Add fips_algvs: a multicall fips utility incorporating all the algorithm 4714 test programs and fips_test_suite. Includes functionality to parse 4715 the minimal script output of fipsalgest.pl directly. 4716 4717 *Steve Henson* 4718 4719 * Add authorisation parameter to FIPS_module_mode_set(). 4720 4721 *Steve Henson* 4722 4723 * Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves. 4724 4725 *Steve Henson* 4726 4727 * Use separate DRBG fields for internal and external flags. New function 4728 FIPS_drbg_health_check() to perform on demand health checking. Add 4729 generation tests to fips_test_suite with reduced health check interval to 4730 demonstrate periodic health checking. Add "nodh" option to 4731 fips_test_suite to skip very slow DH test. 4732 4733 *Steve Henson* 4734 4735 * New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers 4736 based on NID. 4737 4738 *Steve Henson* 4739 4740 * More extensive health check for DRBG checking many more failure modes. 4741 New function FIPS_selftest_drbg_all() to handle every possible DRBG 4742 combination: call this in fips_test_suite. 4743 4744 *Steve Henson* 4745 4746 * Add support for canonical generation of DSA parameter 'g'. See 4747 FIPS 186-3 A.2.3. 4748 4749 * Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and 4750 POST to handle HMAC cases. 4751 4752 *Steve Henson* 4753 4754 * Add functions FIPS_module_version() and FIPS_module_version_text() 4755 to return numerical and string versions of the FIPS module number. 4756 4757 *Steve Henson* 4758 4759 * Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and 4760 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented 4761 outside the validated module in the FIPS capable OpenSSL. 4762 4763 *Steve Henson* 4764 4765 * Minor change to DRBG entropy callback semantics. In some cases 4766 there is no multiple of the block length between min_len and 4767 max_len. Allow the callback to return more than max_len bytes 4768 of entropy but discard any extra: it is the callback's responsibility 4769 to ensure that the extra data discarded does not impact the 4770 requested amount of entropy. 4771 4772 *Steve Henson* 4773 4774 * Add PRNG security strength checks to RSA, DSA and ECDSA using 4775 information in FIPS186-3, SP800-57 and SP800-131A. 4776 4777 *Steve Henson* 4778 4779 * CCM support via EVP. Interface is very similar to GCM case except we 4780 must supply all data in one chunk (i.e. no update, final) and the 4781 message length must be supplied if AAD is used. Add algorithm test 4782 support. 4783 4784 *Steve Henson* 4785 4786 * Initial version of POST overhaul. Add POST callback to allow the status 4787 of POST to be monitored and/or failures induced. Modify fips_test_suite 4788 to use callback. Always run all selftests even if one fails. 4789 4790 *Steve Henson* 4791 4792 * XTS support including algorithm test driver in the fips_gcmtest program. 4793 Note: this does increase the maximum key length from 32 to 64 bytes but 4794 there should be no binary compatibility issues as existing applications 4795 will never use XTS mode. 4796 4797 *Steve Henson* 4798 4799 * Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies 4800 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also 4801 performs algorithm blocking for unapproved PRNG types. Also do not 4802 set PRNG type in FIPS_mode_set(): leave this to the application. 4803 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with 4804 the standard OpenSSL PRNG: set additional data to a date time vector. 4805 4806 *Steve Henson* 4807 4808 * Rename old X9.31 PRNG functions of the form `FIPS_rand*` to `FIPS_x931*`. 4809 This shouldn't present any incompatibility problems because applications 4810 shouldn't be using these directly and any that are will need to rethink 4811 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2 4812 4813 *Steve Henson* 4814 4815 * Extensive self tests and health checking required by SP800-90 DRBG. 4816 Remove strength parameter from FIPS_drbg_instantiate and always 4817 instantiate at maximum supported strength. 4818 4819 *Steve Henson* 4820 4821 * Add ECDH code to fips module and fips_ecdhvs for primitives only testing. 4822 4823 *Steve Henson* 4824 4825 * New algorithm test program fips_dhvs to handle DH primitives only testing. 4826 4827 *Steve Henson* 4828 4829 * New function DH_compute_key_padded() to compute a DH key and pad with 4830 leading zeroes if needed: this complies with SP800-56A et al. 4831 4832 *Steve Henson* 4833 4834 * Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by 4835 anything, incomplete, subject to change and largely untested at present. 4836 4837 *Steve Henson* 4838 4839 * Modify fipscanisteronly build option to only build the necessary object 4840 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile. 4841 4842 *Steve Henson* 4843 4844 * Add experimental option FIPSSYMS to give all symbols in 4845 fipscanister.o and FIPS or fips prefix. This will avoid 4846 conflicts with future versions of OpenSSL. Add perl script 4847 util/fipsas.pl to preprocess assembly language source files 4848 and rename any affected symbols. 4849 4850 *Steve Henson* 4851 4852 * Add selftest checks and algorithm block of non-fips algorithms in 4853 FIPS mode. Remove DES2 from selftests. 4854 4855 *Steve Henson* 4856 4857 * Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just 4858 return internal method without any ENGINE dependencies. Add new 4859 tiny fips sign and verify functions. 4860 4861 *Steve Henson* 4862 4863 * New build option no-ec2m to disable characteristic 2 code. 4864 4865 *Steve Henson* 4866 4867 * New build option "fipscanisteronly". This only builds fipscanister.o 4868 and (currently) associated fips utilities. Uses the file Makefile.fips 4869 instead of Makefile.org as the prototype. 4870 4871 *Steve Henson* 4872 4873 * Add some FIPS mode restrictions to GCM. Add internal IV generator. 4874 Update fips_gcmtest to use IV generator. 4875 4876 *Steve Henson* 4877 4878 * Initial, experimental EVP support for AES-GCM. AAD can be input by 4879 setting output buffer to NULL. The `*Final` function must be 4880 called although it will not retrieve any additional data. The tag 4881 can be set or retrieved with a ctrl. The IV length is by default 12 4882 bytes (96 bits) but can be set to an alternative value. If the IV 4883 length exceeds the maximum IV length (currently 16 bytes) it cannot be 4884 set before the key. 4885 4886 *Steve Henson* 4887 4888 * New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the 4889 underlying do_cipher function handles all cipher semantics itself 4890 including padding and finalisation. This is useful if (for example) 4891 an ENGINE cipher handles block padding itself. The behaviour of 4892 do_cipher is subtly changed if this flag is set: the return value 4893 is the number of characters written to the output buffer (zero is 4894 no longer an error code) or a negative error code. Also if the 4895 input buffer is NULL and length 0 finalisation should be performed. 4896 4897 *Steve Henson* 4898 4899 * If a candidate issuer certificate is already part of the constructed 4900 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case. 4901 4902 *Steve Henson* 4903 4904 * Improve forward-security support: add functions 4905 4906 void SSL_CTX_set_not_resumable_session_callback( 4907 SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure)) 4908 void SSL_set_not_resumable_session_callback( 4909 SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure)) 4910 4911 for use by SSL/TLS servers; the callback function will be called whenever a 4912 new session is created, and gets to decide whether the session may be 4913 cached to make it resumable (return 0) or not (return 1). (As by the 4914 SSL/TLS protocol specifications, the session_id sent by the server will be 4915 empty to indicate that the session is not resumable; also, the server will 4916 not generate RFC 4507 (RFC 5077) session tickets.) 4917 4918 A simple reasonable callback implementation is to return is_forward_secure. 4919 This parameter will be set to 1 or 0 depending on the ciphersuite selected 4920 by the SSL/TLS server library, indicating whether it can provide forward 4921 security. 4922 4923 *Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)* 4924 4925 * New -verify_name option in command line utilities to set verification 4926 parameters by name. 4927 4928 *Steve Henson* 4929 4930 * Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE. 4931 Add CMAC pkey methods. 4932 4933 *Steve Henson* 4934 4935 * Experimental renegotiation in s_server -www mode. If the client 4936 browses /reneg connection is renegotiated. If /renegcert it is 4937 renegotiated requesting a certificate. 4938 4939 *Steve Henson* 4940 4941 * Add an "external" session cache for debugging purposes to s_server. This 4942 should help trace issues which normally are only apparent in deployed 4943 multi-process servers. 4944 4945 *Steve Henson* 4946 4947 * Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where 4948 return value is ignored. NB. The functions RAND_add(), RAND_seed(), 4949 BIO_set_cipher() and some obscure PEM functions were changed so they 4950 can now return an error. The RAND changes required a change to the 4951 RAND_METHOD structure. 4952 4953 *Steve Henson* 4954 4955 * New macro `__owur` for "OpenSSL Warn Unused Result". This makes use of 4956 a gcc attribute to warn if the result of a function is ignored. This 4957 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h 4958 whose return value is often ignored. 4959 4960 *Steve Henson* 4961 4962 * New -noct, -requestct, -requirect and -ctlogfile options for s_client. 4963 These allow SCTs (signed certificate timestamps) to be requested and 4964 validated when establishing a connection. 4965 4966 *Rob Percival <robpercival@google.com>* 4967 4968OpenSSL 1.0.2 4969------------- 4970 4971### Changes between 1.0.2s and 1.0.2t [10 Sep 2019] 4972 4973 * For built-in EC curves, ensure an EC_GROUP built from the curve name is 4974 used even when parsing explicit parameters, when loading a encoded key 4975 or calling `EC_GROUP_new_from_ecpkparameters()`/ 4976 `EC_GROUP_new_from_ecparameters()`. 4977 This prevents bypass of security hardening and performance gains, 4978 especially for curves with specialized EC_METHODs. 4979 By default, if a key encoded with explicit parameters is loaded and later 4980 encoded, the output is still encoded with explicit parameters, even if 4981 internally a "named" EC_GROUP is used for computation. 4982 4983 *Nicola Tuveri* 4984 4985 * Compute ECC cofactors if not provided during EC_GROUP construction. Before 4986 this change, EC_GROUP_set_generator would accept order and/or cofactor as 4987 NULL. After this change, only the cofactor parameter can be NULL. It also 4988 does some minimal sanity checks on the passed order. 4989 ([CVE-2019-1547]) 4990 4991 *Billy Bob Brumley* 4992 4993 * Fixed a padding oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey. 4994 An attack is simple, if the first CMS_recipientInfo is valid but the 4995 second CMS_recipientInfo is chosen ciphertext. If the second 4996 recipientInfo decodes to PKCS #1 v1.5 form plaintext, the correct 4997 encryption key will be replaced by garbage, and the message cannot be 4998 decoded, but if the RSA decryption fails, the correct encryption key is 4999 used and the recipient will not notice the attack. 5000 As a work around for this potential attack the length of the decrypted 5001 key must be equal to the cipher default key length, in case the 5002 certifiate is not given and all recipientInfo are tried out. 5003 The old behaviour can be re-enabled in the CMS code by setting the 5004 CMS_DEBUG_DECRYPT flag. 5005 ([CVE-2019-1563]) 5006 5007 *Bernd Edlinger* 5008 5009 * Document issue with installation paths in diverse Windows builds 5010 5011 '/usr/local/ssl' is an unsafe prefix for location to install OpenSSL 5012 binaries and run-time config file. 5013 ([CVE-2019-1552]) 5014 5015 *Richard Levitte* 5016 5017### Changes between 1.0.2r and 1.0.2s [28 May 2019] 5018 5019 * Change the default RSA, DSA and DH size to 2048 bit instead of 1024. 5020 This changes the size when using the `genpkey` command when no size is given. 5021 It fixes an omission in earlier changes that changed all RSA, DSA and DH 5022 generation commands to use 2048 bits by default. 5023 5024 *Kurt Roeckx* 5025 5026 * Add FIPS support for Android Arm 64-bit 5027 5028 Support for Android Arm 64-bit was added to the OpenSSL FIPS Object 5029 Module in Version 2.0.10. For some reason, the corresponding target 5030 'android64-aarch64' was missing OpenSSL 1.0.2, whence it could not be 5031 built with FIPS support on Android Arm 64-bit. This omission has been 5032 fixed. 5033 5034 *Matthias St. Pierre* 5035 5036### Changes between 1.0.2q and 1.0.2r [26 Feb 2019] 5037 5038 * 0-byte record padding oracle 5039 5040 If an application encounters a fatal protocol error and then calls 5041 SSL_shutdown() twice (once to send a close_notify, and once to receive one) 5042 then OpenSSL can respond differently to the calling application if a 0 byte 5043 record is received with invalid padding compared to if a 0 byte record is 5044 received with an invalid MAC. If the application then behaves differently 5045 based on that in a way that is detectable to the remote peer, then this 5046 amounts to a padding oracle that could be used to decrypt data. 5047 5048 In order for this to be exploitable "non-stitched" ciphersuites must be in 5049 use. Stitched ciphersuites are optimised implementations of certain 5050 commonly used ciphersuites. Also the application must call SSL_shutdown() 5051 twice even if a protocol error has occurred (applications should not do 5052 this but some do anyway). 5053 5054 This issue was discovered by Juraj Somorovsky, Robert Merget and Nimrod 5055 Aviram, with additional investigation by Steven Collison and Andrew 5056 Hourselt. It was reported to OpenSSL on 10th December 2018. 5057 ([CVE-2019-1559]) 5058 5059 *Matt Caswell* 5060 5061 * Move strictness check from EVP_PKEY_asn1_new() to EVP_PKEY_asn1_add0(). 5062 5063 *Richard Levitte* 5064 5065### Changes between 1.0.2p and 1.0.2q [20 Nov 2018] 5066 5067 * Microarchitecture timing vulnerability in ECC scalar multiplication 5068 5069 OpenSSL ECC scalar multiplication, used in e.g. ECDSA and ECDH, has been 5070 shown to be vulnerable to a microarchitecture timing side channel attack. 5071 An attacker with sufficient access to mount local timing attacks during 5072 ECDSA signature generation could recover the private key. 5073 5074 This issue was reported to OpenSSL on 26th October 2018 by Alejandro 5075 Cabrera Aldaya, Billy Brumley, Sohaib ul Hassan, Cesar Pereida Garcia and 5076 Nicola Tuveri. 5077 ([CVE-2018-5407]) 5078 5079 *Billy Brumley* 5080 5081 * Timing vulnerability in DSA signature generation 5082 5083 The OpenSSL DSA signature algorithm has been shown to be vulnerable to a 5084 timing side channel attack. An attacker could use variations in the signing 5085 algorithm to recover the private key. 5086 5087 This issue was reported to OpenSSL on 16th October 2018 by Samuel Weiser. 5088 ([CVE-2018-0734]) 5089 5090 *Paul Dale* 5091 5092 * Resolve a compatibility issue in EC_GROUP handling with the FIPS Object 5093 Module, accidentally introduced while backporting security fixes from the 5094 development branch and hindering the use of ECC in FIPS mode. 5095 5096 *Nicola Tuveri* 5097 5098### Changes between 1.0.2o and 1.0.2p [14 Aug 2018] 5099 5100 * Client DoS due to large DH parameter 5101 5102 During key agreement in a TLS handshake using a DH(E) based ciphersuite a 5103 malicious server can send a very large prime value to the client. This will 5104 cause the client to spend an unreasonably long period of time generating a 5105 key for this prime resulting in a hang until the client has finished. This 5106 could be exploited in a Denial Of Service attack. 5107 5108 This issue was reported to OpenSSL on 5th June 2018 by Guido Vranken 5109 ([CVE-2018-0732]) 5110 5111 *Guido Vranken* 5112 5113 * Cache timing vulnerability in RSA Key Generation 5114 5115 The OpenSSL RSA Key generation algorithm has been shown to be vulnerable to 5116 a cache timing side channel attack. An attacker with sufficient access to 5117 mount cache timing attacks during the RSA key generation process could 5118 recover the private key. 5119 5120 This issue was reported to OpenSSL on 4th April 2018 by Alejandro Cabrera 5121 Aldaya, Billy Brumley, Cesar Pereida Garcia and Luis Manuel Alvarez Tapia. 5122 ([CVE-2018-0737]) 5123 5124 *Billy Brumley* 5125 5126 * Make EVP_PKEY_asn1_new() a bit stricter about its input. A NULL pem_str 5127 parameter is no longer accepted, as it leads to a corrupt table. NULL 5128 pem_str is reserved for alias entries only. 5129 5130 *Richard Levitte* 5131 5132 * Revert blinding in ECDSA sign and instead make problematic addition 5133 length-invariant. Switch even to fixed-length Montgomery multiplication. 5134 5135 *Andy Polyakov* 5136 5137 * Change generating and checking of primes so that the error rate of not 5138 being prime depends on the intended use based on the size of the input. 5139 For larger primes this will result in more rounds of Miller-Rabin. 5140 The maximal error rate for primes with more than 1080 bits is lowered 5141 to 2^-128. 5142 5143 *Kurt Roeckx, Annie Yousar* 5144 5145 * Increase the number of Miller-Rabin rounds for DSA key generating to 64. 5146 5147 *Kurt Roeckx* 5148 5149 * Add blinding to ECDSA and DSA signatures to protect against side channel 5150 attacks discovered by Keegan Ryan (NCC Group). 5151 5152 *Matt Caswell* 5153 5154 * When unlocking a pass phrase protected PEM file or PKCS#8 container, we 5155 now allow empty (zero character) pass phrases. 5156 5157 *Richard Levitte* 5158 5159 * Certificate time validation (X509_cmp_time) enforces stricter 5160 compliance with RFC 5280. Fractional seconds and timezone offsets 5161 are no longer allowed. 5162 5163 *Emilia Käsper* 5164 5165### Changes between 1.0.2n and 1.0.2o [27 Mar 2018] 5166 5167 * Constructed ASN.1 types with a recursive definition could exceed the stack 5168 5169 Constructed ASN.1 types with a recursive definition (such as can be found 5170 in PKCS7) could eventually exceed the stack given malicious input with 5171 excessive recursion. This could result in a Denial Of Service attack. There 5172 are no such structures used within SSL/TLS that come from untrusted sources 5173 so this is considered safe. 5174 5175 This issue was reported to OpenSSL on 4th January 2018 by the OSS-fuzz 5176 project. 5177 ([CVE-2018-0739]) 5178 5179 *Matt Caswell* 5180 5181### Changes between 1.0.2m and 1.0.2n [7 Dec 2017] 5182 5183 * Read/write after SSL object in error state 5184 5185 OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an "error state" 5186 mechanism. The intent was that if a fatal error occurred during a handshake 5187 then OpenSSL would move into the error state and would immediately fail if 5188 you attempted to continue the handshake. This works as designed for the 5189 explicit handshake functions (SSL_do_handshake(), SSL_accept() and 5190 SSL_connect()), however due to a bug it does not work correctly if 5191 SSL_read() or SSL_write() is called directly. In that scenario, if the 5192 handshake fails then a fatal error will be returned in the initial function 5193 call. If SSL_read()/SSL_write() is subsequently called by the application 5194 for the same SSL object then it will succeed and the data is passed without 5195 being decrypted/encrypted directly from the SSL/TLS record layer. 5196 5197 In order to exploit this issue an application bug would have to be present 5198 that resulted in a call to SSL_read()/SSL_write() being issued after having 5199 already received a fatal error. 5200 5201 This issue was reported to OpenSSL by David Benjamin (Google). 5202 ([CVE-2017-3737]) 5203 5204 *Matt Caswell* 5205 5206 * rsaz_1024_mul_avx2 overflow bug on x86_64 5207 5208 There is an overflow bug in the AVX2 Montgomery multiplication procedure 5209 used in exponentiation with 1024-bit moduli. No EC algorithms are affected. 5210 Analysis suggests that attacks against RSA and DSA as a result of this 5211 defect would be very difficult to perform and are not believed likely. 5212 Attacks against DH1024 are considered just feasible, because most of the 5213 work necessary to deduce information about a private key may be performed 5214 offline. The amount of resources required for such an attack would be 5215 significant. However, for an attack on TLS to be meaningful, the server 5216 would have to share the DH1024 private key among multiple clients, which is 5217 no longer an option since CVE-2016-0701. 5218 5219 This only affects processors that support the AVX2 but not ADX extensions 5220 like Intel Haswell (4th generation). 5221 5222 This issue was reported to OpenSSL by David Benjamin (Google). The issue 5223 was originally found via the OSS-Fuzz project. 5224 ([CVE-2017-3738]) 5225 5226 *Andy Polyakov* 5227 5228### Changes between 1.0.2l and 1.0.2m [2 Nov 2017] 5229 5230 * bn_sqrx8x_internal carry bug on x86_64 5231 5232 There is a carry propagating bug in the x86_64 Montgomery squaring 5233 procedure. No EC algorithms are affected. Analysis suggests that attacks 5234 against RSA and DSA as a result of this defect would be very difficult to 5235 perform and are not believed likely. Attacks against DH are considered just 5236 feasible (although very difficult) because most of the work necessary to 5237 deduce information about a private key may be performed offline. The amount 5238 of resources required for such an attack would be very significant and 5239 likely only accessible to a limited number of attackers. An attacker would 5240 additionally need online access to an unpatched system using the target 5241 private key in a scenario with persistent DH parameters and a private 5242 key that is shared between multiple clients. 5243 5244 This only affects processors that support the BMI1, BMI2 and ADX extensions 5245 like Intel Broadwell (5th generation) and later or AMD Ryzen. 5246 5247 This issue was reported to OpenSSL by the OSS-Fuzz project. 5248 ([CVE-2017-3736]) 5249 5250 *Andy Polyakov* 5251 5252 * Malformed X.509 IPAddressFamily could cause OOB read 5253 5254 If an X.509 certificate has a malformed IPAddressFamily extension, 5255 OpenSSL could do a one-byte buffer overread. The most likely result 5256 would be an erroneous display of the certificate in text format. 5257 5258 This issue was reported to OpenSSL by the OSS-Fuzz project. 5259 5260 *Rich Salz* 5261 5262### Changes between 1.0.2k and 1.0.2l [25 May 2017] 5263 5264 * Have 'config' recognise 64-bit mingw and choose 'mingw64' as the target 5265 platform rather than 'mingw'. 5266 5267 *Richard Levitte* 5268 5269### Changes between 1.0.2j and 1.0.2k [26 Jan 2017] 5270 5271 * Truncated packet could crash via OOB read 5272 5273 If one side of an SSL/TLS path is running on a 32-bit host and a specific 5274 cipher is being used, then a truncated packet can cause that host to 5275 perform an out-of-bounds read, usually resulting in a crash. 5276 5277 This issue was reported to OpenSSL by Robert Święcki of Google. 5278 ([CVE-2017-3731]) 5279 5280 *Andy Polyakov* 5281 5282 * BN_mod_exp may produce incorrect results on x86_64 5283 5284 There is a carry propagating bug in the x86_64 Montgomery squaring 5285 procedure. No EC algorithms are affected. Analysis suggests that attacks 5286 against RSA and DSA as a result of this defect would be very difficult to 5287 perform and are not believed likely. Attacks against DH are considered just 5288 feasible (although very difficult) because most of the work necessary to 5289 deduce information about a private key may be performed offline. The amount 5290 of resources required for such an attack would be very significant and 5291 likely only accessible to a limited number of attackers. An attacker would 5292 additionally need online access to an unpatched system using the target 5293 private key in a scenario with persistent DH parameters and a private 5294 key that is shared between multiple clients. For example this can occur by 5295 default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very 5296 similar to CVE-2015-3193 but must be treated as a separate problem. 5297 5298 This issue was reported to OpenSSL by the OSS-Fuzz project. 5299 ([CVE-2017-3732]) 5300 5301 *Andy Polyakov* 5302 5303 * Montgomery multiplication may produce incorrect results 5304 5305 There is a carry propagating bug in the Broadwell-specific Montgomery 5306 multiplication procedure that handles input lengths divisible by, but 5307 longer than 256 bits. Analysis suggests that attacks against RSA, DSA 5308 and DH private keys are impossible. This is because the subroutine in 5309 question is not used in operations with the private key itself and an input 5310 of the attacker's direct choice. Otherwise the bug can manifest itself as 5311 transient authentication and key negotiation failures or reproducible 5312 erroneous outcome of public-key operations with specially crafted input. 5313 Among EC algorithms only Brainpool P-512 curves are affected and one 5314 presumably can attack ECDH key negotiation. Impact was not analyzed in 5315 detail, because pre-requisites for attack are considered unlikely. Namely 5316 multiple clients have to choose the curve in question and the server has to 5317 share the private key among them, neither of which is default behaviour. 5318 Even then only clients that chose the curve will be affected. 5319 5320 This issue was publicly reported as transient failures and was not 5321 initially recognized as a security issue. Thanks to Richard Morgan for 5322 providing reproducible case. 5323 ([CVE-2016-7055]) 5324 5325 *Andy Polyakov* 5326 5327 * OpenSSL now fails if it receives an unrecognised record type in TLS1.0 5328 or TLS1.1. Previously this only happened in SSLv3 and TLS1.2. This is to 5329 prevent issues where no progress is being made and the peer continually 5330 sends unrecognised record types, using up resources processing them. 5331 5332 *Matt Caswell* 5333 5334### Changes between 1.0.2i and 1.0.2j [26 Sep 2016] 5335 5336 * Missing CRL sanity check 5337 5338 A bug fix which included a CRL sanity check was added to OpenSSL 1.1.0 5339 but was omitted from OpenSSL 1.0.2i. As a result any attempt to use 5340 CRLs in OpenSSL 1.0.2i will crash with a null pointer exception. 5341 5342 This issue only affects the OpenSSL 1.0.2i 5343 ([CVE-2016-7052]) 5344 5345 *Matt Caswell* 5346 5347### Changes between 1.0.2h and 1.0.2i [22 Sep 2016] 5348 5349 * OCSP Status Request extension unbounded memory growth 5350 5351 A malicious client can send an excessively large OCSP Status Request 5352 extension. If that client continually requests renegotiation, sending a 5353 large OCSP Status Request extension each time, then there will be unbounded 5354 memory growth on the server. This will eventually lead to a Denial Of 5355 Service attack through memory exhaustion. Servers with a default 5356 configuration are vulnerable even if they do not support OCSP. Builds using 5357 the "no-ocsp" build time option are not affected. 5358 5359 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5360 ([CVE-2016-6304]) 5361 5362 *Matt Caswell* 5363 5364 * In order to mitigate the SWEET32 attack, the DES ciphers were moved from 5365 HIGH to MEDIUM. 5366 5367 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 5368 Leurent (INRIA) 5369 ([CVE-2016-2183]) 5370 5371 *Rich Salz* 5372 5373 * OOB write in MDC2_Update() 5374 5375 An overflow can occur in MDC2_Update() either if called directly or 5376 through the EVP_DigestUpdate() function using MDC2. If an attacker 5377 is able to supply very large amounts of input data after a previous 5378 call to EVP_EncryptUpdate() with a partial block then a length check 5379 can overflow resulting in a heap corruption. 5380 5381 The amount of data needed is comparable to SIZE_MAX which is impractical 5382 on most platforms. 5383 5384 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5385 ([CVE-2016-6303]) 5386 5387 *Stephen Henson* 5388 5389 * Malformed SHA512 ticket DoS 5390 5391 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 5392 DoS attack where a malformed ticket will result in an OOB read which will 5393 ultimately crash. 5394 5395 The use of SHA512 in TLS session tickets is comparatively rare as it requires 5396 a custom server callback and ticket lookup mechanism. 5397 5398 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5399 ([CVE-2016-6302]) 5400 5401 *Stephen Henson* 5402 5403 * OOB write in BN_bn2dec() 5404 5405 The function BN_bn2dec() does not check the return value of BN_div_word(). 5406 This can cause an OOB write if an application uses this function with an 5407 overly large BIGNUM. This could be a problem if an overly large certificate 5408 or CRL is printed out from an untrusted source. TLS is not affected because 5409 record limits will reject an oversized certificate before it is parsed. 5410 5411 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5412 ([CVE-2016-2182]) 5413 5414 *Stephen Henson* 5415 5416 * OOB read in TS_OBJ_print_bio() 5417 5418 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 5419 the total length the OID text representation would use and not the amount 5420 of data written. This will result in OOB reads when large OIDs are 5421 presented. 5422 5423 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5424 ([CVE-2016-2180]) 5425 5426 *Stephen Henson* 5427 5428 * Pointer arithmetic undefined behaviour 5429 5430 Avoid some undefined pointer arithmetic 5431 5432 A common idiom in the codebase is to check limits in the following manner: 5433 "p + len > limit" 5434 5435 Where "p" points to some malloc'd data of SIZE bytes and 5436 limit == p + SIZE 5437 5438 "len" here could be from some externally supplied data (e.g. from a TLS 5439 message). 5440 5441 The rules of C pointer arithmetic are such that "p + len" is only well 5442 defined where len <= SIZE. Therefore the above idiom is actually 5443 undefined behaviour. 5444 5445 For example this could cause problems if some malloc implementation 5446 provides an address for "p" such that "p + len" actually overflows for 5447 values of len that are too big and therefore p + len < limit. 5448 5449 This issue was reported to OpenSSL by Guido Vranken 5450 ([CVE-2016-2177]) 5451 5452 *Matt Caswell* 5453 5454 * Constant time flag not preserved in DSA signing 5455 5456 Operations in the DSA signing algorithm should run in constant time in 5457 order to avoid side channel attacks. A flaw in the OpenSSL DSA 5458 implementation means that a non-constant time codepath is followed for 5459 certain operations. This has been demonstrated through a cache-timing 5460 attack to be sufficient for an attacker to recover the private DSA key. 5461 5462 This issue was reported by César Pereida (Aalto University), Billy Brumley 5463 (Tampere University of Technology), and Yuval Yarom (The University of 5464 Adelaide and NICTA). 5465 ([CVE-2016-2178]) 5466 5467 *César Pereida* 5468 5469 * DTLS buffered message DoS 5470 5471 In a DTLS connection where handshake messages are delivered out-of-order 5472 those messages that OpenSSL is not yet ready to process will be buffered 5473 for later use. Under certain circumstances, a flaw in the logic means that 5474 those messages do not get removed from the buffer even though the handshake 5475 has been completed. An attacker could force up to approx. 15 messages to 5476 remain in the buffer when they are no longer required. These messages will 5477 be cleared when the DTLS connection is closed. The default maximum size for 5478 a message is 100k. Therefore the attacker could force an additional 1500k 5479 to be consumed per connection. By opening many simulataneous connections an 5480 attacker could cause a DoS attack through memory exhaustion. 5481 5482 This issue was reported to OpenSSL by Quan Luo. 5483 ([CVE-2016-2179]) 5484 5485 *Matt Caswell* 5486 5487 * DTLS replay protection DoS 5488 5489 A flaw in the DTLS replay attack protection mechanism means that records 5490 that arrive for future epochs update the replay protection "window" before 5491 the MAC for the record has been validated. This could be exploited by an 5492 attacker by sending a record for the next epoch (which does not have to 5493 decrypt or have a valid MAC), with a very large sequence number. This means 5494 that all subsequent legitimate packets are dropped causing a denial of 5495 service for a specific DTLS connection. 5496 5497 This issue was reported to OpenSSL by the OCAP audit team. 5498 ([CVE-2016-2181]) 5499 5500 *Matt Caswell* 5501 5502 * Certificate message OOB reads 5503 5504 In OpenSSL 1.0.2 and earlier some missing message length checks can result 5505 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 5506 theoretical DoS risk but this has not been observed in practice on common 5507 platforms. 5508 5509 The messages affected are client certificate, client certificate request 5510 and server certificate. As a result the attack can only be performed 5511 against a client or a server which enables client authentication. 5512 5513 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 5514 ([CVE-2016-6306]) 5515 5516 *Stephen Henson* 5517 5518### Changes between 1.0.2g and 1.0.2h [3 May 2016] 5519 5520 * Prevent padding oracle in AES-NI CBC MAC check 5521 5522 A MITM attacker can use a padding oracle attack to decrypt traffic 5523 when the connection uses an AES CBC cipher and the server support 5524 AES-NI. 5525 5526 This issue was introduced as part of the fix for Lucky 13 padding 5527 attack ([CVE-2013-0169]). The padding check was rewritten to be in 5528 constant time by making sure that always the same bytes are read and 5529 compared against either the MAC or padding bytes. But it no longer 5530 checked that there was enough data to have both the MAC and padding 5531 bytes. 5532 5533 This issue was reported by Juraj Somorovsky using TLS-Attacker. 5534 5535 *Kurt Roeckx* 5536 5537 * Fix EVP_EncodeUpdate overflow 5538 5539 An overflow can occur in the EVP_EncodeUpdate() function which is used for 5540 Base64 encoding of binary data. If an attacker is able to supply very large 5541 amounts of input data then a length check can overflow resulting in a heap 5542 corruption. 5543 5544 Internally to OpenSSL the EVP_EncodeUpdate() function is primarily used by 5545 the `PEM_write_bio*` family of functions. These are mainly used within the 5546 OpenSSL command line applications, so any application which processes data 5547 from an untrusted source and outputs it as a PEM file should be considered 5548 vulnerable to this issue. User applications that call these APIs directly 5549 with large amounts of untrusted data may also be vulnerable. 5550 5551 This issue was reported by Guido Vranken. 5552 ([CVE-2016-2105]) 5553 5554 *Matt Caswell* 5555 5556 * Fix EVP_EncryptUpdate overflow 5557 5558 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 5559 is able to supply very large amounts of input data after a previous call to 5560 EVP_EncryptUpdate() with a partial block then a length check can overflow 5561 resulting in a heap corruption. Following an analysis of all OpenSSL 5562 internal usage of the EVP_EncryptUpdate() function all usage is one of two 5563 forms. The first form is where the EVP_EncryptUpdate() call is known to be 5564 the first called function after an EVP_EncryptInit(), and therefore that 5565 specific call must be safe. The second form is where the length passed to 5566 EVP_EncryptUpdate() can be seen from the code to be some small value and 5567 therefore there is no possibility of an overflow. Since all instances are 5568 one of these two forms, it is believed that there can be no overflows in 5569 internal code due to this problem. It should be noted that 5570 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 5571 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 5572 of these calls have also been analysed too and it is believed there are no 5573 instances in internal usage where an overflow could occur. 5574 5575 This issue was reported by Guido Vranken. 5576 ([CVE-2016-2106]) 5577 5578 *Matt Caswell* 5579 5580 * Prevent ASN.1 BIO excessive memory allocation 5581 5582 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 5583 a short invalid encoding can cause allocation of large amounts of memory 5584 potentially consuming excessive resources or exhausting memory. 5585 5586 Any application parsing untrusted data through d2i BIO functions is 5587 affected. The memory based functions such as d2i_X509() are *not* affected. 5588 Since the memory based functions are used by the TLS library, TLS 5589 applications are not affected. 5590 5591 This issue was reported by Brian Carpenter. 5592 ([CVE-2016-2109]) 5593 5594 *Stephen Henson* 5595 5596 * EBCDIC overread 5597 5598 ASN1 Strings that are over 1024 bytes can cause an overread in applications 5599 using the X509_NAME_oneline() function on EBCDIC systems. This could result 5600 in arbitrary stack data being returned in the buffer. 5601 5602 This issue was reported by Guido Vranken. 5603 ([CVE-2016-2176]) 5604 5605 *Matt Caswell* 5606 5607 * Modify behavior of ALPN to invoke callback after SNI/servername 5608 callback, such that updates to the SSL_CTX affect ALPN. 5609 5610 *Todd Short* 5611 5612 * Remove LOW from the DEFAULT cipher list. This removes singles DES from the 5613 default. 5614 5615 *Kurt Roeckx* 5616 5617 * Only remove the SSLv2 methods with the no-ssl2-method option. When the 5618 methods are enabled and ssl2 is disabled the methods return NULL. 5619 5620 *Kurt Roeckx* 5621 5622### Changes between 1.0.2f and 1.0.2g [1 Mar 2016] 5623 5624* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 5625 Builds that are not configured with "enable-weak-ssl-ciphers" will not 5626 provide any "EXPORT" or "LOW" strength ciphers. 5627 5628 *Viktor Dukhovni* 5629 5630* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 5631 is by default disabled at build-time. Builds that are not configured with 5632 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 5633 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 5634 will need to explicitly call either of: 5635 5636 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 5637 or 5638 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 5639 5640 as appropriate. Even if either of those is used, or the application 5641 explicitly uses the version-specific SSLv2_method() or its client and 5642 server variants, SSLv2 ciphers vulnerable to exhaustive search key 5643 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 5644 ciphers, and SSLv2 56-bit DES are no longer available. 5645 ([CVE-2016-0800]) 5646 5647 *Viktor Dukhovni* 5648 5649 * Fix a double-free in DSA code 5650 5651 A double free bug was discovered when OpenSSL parses malformed DSA private 5652 keys and could lead to a DoS attack or memory corruption for applications 5653 that receive DSA private keys from untrusted sources. This scenario is 5654 considered rare. 5655 5656 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 5657 libFuzzer. 5658 ([CVE-2016-0705]) 5659 5660 *Stephen Henson* 5661 5662 * Disable SRP fake user seed to address a server memory leak. 5663 5664 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 5665 5666 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 5667 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 5668 was changed to ignore the "fake user" SRP seed, even if the seed 5669 is configured. 5670 5671 Users should use SRP_VBASE_get1_by_user instead. Note that in 5672 SRP_VBASE_get1_by_user, caller must free the returned value. Note 5673 also that even though configuring the SRP seed attempts to hide 5674 invalid usernames by continuing the handshake with fake 5675 credentials, this behaviour is not constant time and no strong 5676 guarantees are made that the handshake is indistinguishable from 5677 that of a valid user. 5678 ([CVE-2016-0798]) 5679 5680 *Emilia Käsper* 5681 5682 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 5683 5684 In the BN_hex2bn function the number of hex digits is calculated using an 5685 int value `i`. Later `bn_expand` is called with a value of `i * 4`. For 5686 large values of `i` this can result in `bn_expand` not allocating any 5687 memory because `i * 4` is negative. This can leave the internal BIGNUM data 5688 field as NULL leading to a subsequent NULL ptr deref. For very large values 5689 of `i`, the calculation `i * 4` could be a positive value smaller than `i`. 5690 In this case memory is allocated to the internal BIGNUM data field, but it 5691 is insufficiently sized leading to heap corruption. A similar issue exists 5692 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 5693 is ever called by user applications with very large untrusted hex/dec data. 5694 This is anticipated to be a rare occurrence. 5695 5696 All OpenSSL internal usage of these functions use data that is not expected 5697 to be untrusted, e.g. config file data or application command line 5698 arguments. If user developed applications generate config file data based 5699 on untrusted data then it is possible that this could also lead to security 5700 consequences. This is also anticipated to be rare. 5701 5702 This issue was reported to OpenSSL by Guido Vranken. 5703 ([CVE-2016-0797]) 5704 5705 *Matt Caswell* 5706 5707 * Fix memory issues in `BIO_*printf` functions 5708 5709 The internal `fmtstr` function used in processing a "%s" format string in 5710 the `BIO_*printf` functions could overflow while calculating the length of a 5711 string and cause an OOB read when printing very long strings. 5712 5713 Additionally the internal `doapr_outch` function can attempt to write to an 5714 OOB memory location (at an offset from the NULL pointer) in the event of a 5715 memory allocation failure. In 1.0.2 and below this could be caused where 5716 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 5717 could be in processing a very long "%s" format string. Memory leaks can 5718 also occur. 5719 5720 The first issue may mask the second issue dependent on compiler behaviour. 5721 These problems could enable attacks where large amounts of untrusted data 5722 is passed to the `BIO_*printf` functions. If applications use these functions 5723 in this way then they could be vulnerable. OpenSSL itself uses these 5724 functions when printing out human-readable dumps of ASN.1 data. Therefore 5725 applications that print this data could be vulnerable if the data is from 5726 untrusted sources. OpenSSL command line applications could also be 5727 vulnerable where they print out ASN.1 data, or if untrusted data is passed 5728 as command line arguments. 5729 5730 Libssl is not considered directly vulnerable. Additionally certificates etc 5731 received via remote connections via libssl are also unlikely to be able to 5732 trigger these issues because of message size limits enforced within libssl. 5733 5734 This issue was reported to OpenSSL Guido Vranken. 5735 ([CVE-2016-0799]) 5736 5737 *Matt Caswell* 5738 5739 * Side channel attack on modular exponentiation 5740 5741 A side-channel attack was found which makes use of cache-bank conflicts on 5742 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 5743 of RSA keys. The ability to exploit this issue is limited as it relies on 5744 an attacker who has control of code in a thread running on the same 5745 hyper-threaded core as the victim thread which is performing decryptions. 5746 5747 This issue was reported to OpenSSL by Yuval Yarom, The University of 5748 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 5749 Nadia Heninger, University of Pennsylvania with more information at 5750 <http://cachebleed.info>. 5751 ([CVE-2016-0702]) 5752 5753 *Andy Polyakov* 5754 5755 * Change the `req` command to generate a 2048-bit RSA/DSA key by default, 5756 if no keysize is specified with default_bits. This fixes an 5757 omission in an earlier change that changed all RSA/DSA key generation 5758 commands to use 2048 bits by default. 5759 5760 *Emilia Käsper* 5761 5762### Changes between 1.0.2e and 1.0.2f [28 Jan 2016] 5763 5764 * DH small subgroups 5765 5766 Historically OpenSSL only ever generated DH parameters based on "safe" 5767 primes. More recently (in version 1.0.2) support was provided for 5768 generating X9.42 style parameter files such as those required for RFC 5114 5769 support. The primes used in such files may not be "safe". Where an 5770 application is using DH configured with parameters based on primes that are 5771 not "safe" then an attacker could use this fact to find a peer's private 5772 DH exponent. This attack requires that the attacker complete multiple 5773 handshakes in which the peer uses the same private DH exponent. For example 5774 this could be used to discover a TLS server's private DH exponent if it's 5775 reusing the private DH exponent or it's using a static DH ciphersuite. 5776 5777 OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in 5778 TLS. It is not on by default. If the option is not set then the server 5779 reuses the same private DH exponent for the life of the server process and 5780 would be vulnerable to this attack. It is believed that many popular 5781 applications do set this option and would therefore not be at risk. 5782 5783 The fix for this issue adds an additional check where a "q" parameter is 5784 available (as is the case in X9.42 based parameters). This detects the 5785 only known attack, and is the only possible defense for static DH 5786 ciphersuites. This could have some performance impact. 5787 5788 Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by 5789 default and cannot be disabled. This could have some performance impact. 5790 5791 This issue was reported to OpenSSL by Antonio Sanso (Adobe). 5792 ([CVE-2016-0701]) 5793 5794 *Matt Caswell* 5795 5796 * SSLv2 doesn't block disabled ciphers 5797 5798 A malicious client can negotiate SSLv2 ciphers that have been disabled on 5799 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 5800 been disabled, provided that the SSLv2 protocol was not also disabled via 5801 SSL_OP_NO_SSLv2. 5802 5803 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 5804 and Sebastian Schinzel. 5805 ([CVE-2015-3197]) 5806 5807 *Viktor Dukhovni* 5808 5809### Changes between 1.0.2d and 1.0.2e [3 Dec 2015] 5810 5811 * BN_mod_exp may produce incorrect results on x86_64 5812 5813 There is a carry propagating bug in the x86_64 Montgomery squaring 5814 procedure. No EC algorithms are affected. Analysis suggests that attacks 5815 against RSA and DSA as a result of this defect would be very difficult to 5816 perform and are not believed likely. Attacks against DH are considered just 5817 feasible (although very difficult) because most of the work necessary to 5818 deduce information about a private key may be performed offline. The amount 5819 of resources required for such an attack would be very significant and 5820 likely only accessible to a limited number of attackers. An attacker would 5821 additionally need online access to an unpatched system using the target 5822 private key in a scenario with persistent DH parameters and a private 5823 key that is shared between multiple clients. For example this can occur by 5824 default in OpenSSL DHE based SSL/TLS ciphersuites. 5825 5826 This issue was reported to OpenSSL by Hanno Böck. 5827 ([CVE-2015-3193]) 5828 5829 *Andy Polyakov* 5830 5831 * Certificate verify crash with missing PSS parameter 5832 5833 The signature verification routines will crash with a NULL pointer 5834 dereference if presented with an ASN.1 signature using the RSA PSS 5835 algorithm and absent mask generation function parameter. Since these 5836 routines are used to verify certificate signature algorithms this can be 5837 used to crash any certificate verification operation and exploited in a 5838 DoS attack. Any application which performs certificate verification is 5839 vulnerable including OpenSSL clients and servers which enable client 5840 authentication. 5841 5842 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 5843 ([CVE-2015-3194]) 5844 5845 *Stephen Henson* 5846 5847 * X509_ATTRIBUTE memory leak 5848 5849 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 5850 memory. This structure is used by the PKCS#7 and CMS routines so any 5851 application which reads PKCS#7 or CMS data from untrusted sources is 5852 affected. SSL/TLS is not affected. 5853 5854 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 5855 libFuzzer. 5856 ([CVE-2015-3195]) 5857 5858 *Stephen Henson* 5859 5860 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 5861 This changes the decoding behaviour for some invalid messages, 5862 though the change is mostly in the more lenient direction, and 5863 legacy behaviour is preserved as much as possible. 5864 5865 *Emilia Käsper* 5866 5867 * In DSA_generate_parameters_ex, if the provided seed is too short, 5868 return an error 5869 5870 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 5871 5872### Changes between 1.0.2c and 1.0.2d [9 Jul 2015] 5873 5874 * Alternate chains certificate forgery 5875 5876 During certificate verification, OpenSSL will attempt to find an 5877 alternative certificate chain if the first attempt to build such a chain 5878 fails. An error in the implementation of this logic can mean that an 5879 attacker could cause certain checks on untrusted certificates to be 5880 bypassed, such as the CA flag, enabling them to use a valid leaf 5881 certificate to act as a CA and "issue" an invalid certificate. 5882 5883 This issue was reported to OpenSSL by Adam Langley/David Benjamin 5884 (Google/BoringSSL). 5885 5886 *Matt Caswell* 5887 5888### Changes between 1.0.2b and 1.0.2c [12 Jun 2015] 5889 5890 * Fix HMAC ABI incompatibility. The previous version introduced an ABI 5891 incompatibility in the handling of HMAC. The previous ABI has now been 5892 restored. 5893 5894 *Matt Caswell* 5895 5896### Changes between 1.0.2a and 1.0.2b [11 Jun 2015] 5897 5898 * Malformed ECParameters causes infinite loop 5899 5900 When processing an ECParameters structure OpenSSL enters an infinite loop 5901 if the curve specified is over a specially malformed binary polynomial 5902 field. 5903 5904 This can be used to perform denial of service against any 5905 system which processes public keys, certificate requests or 5906 certificates. This includes TLS clients and TLS servers with 5907 client authentication enabled. 5908 5909 This issue was reported to OpenSSL by Joseph Barr-Pixton. 5910 ([CVE-2015-1788]) 5911 5912 *Andy Polyakov* 5913 5914 * Exploitable out-of-bounds read in X509_cmp_time 5915 5916 X509_cmp_time does not properly check the length of the ASN1_TIME 5917 string and can read a few bytes out of bounds. In addition, 5918 X509_cmp_time accepts an arbitrary number of fractional seconds in the 5919 time string. 5920 5921 An attacker can use this to craft malformed certificates and CRLs of 5922 various sizes and potentially cause a segmentation fault, resulting in 5923 a DoS on applications that verify certificates or CRLs. TLS clients 5924 that verify CRLs are affected. TLS clients and servers with client 5925 authentication enabled may be affected if they use custom verification 5926 callbacks. 5927 5928 This issue was reported to OpenSSL by Robert Swiecki (Google), and 5929 independently by Hanno Böck. 5930 ([CVE-2015-1789]) 5931 5932 *Emilia Käsper* 5933 5934 * PKCS7 crash with missing EnvelopedContent 5935 5936 The PKCS#7 parsing code does not handle missing inner EncryptedContent 5937 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 5938 with missing content and trigger a NULL pointer dereference on parsing. 5939 5940 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 5941 structures from untrusted sources are affected. OpenSSL clients and 5942 servers are not affected. 5943 5944 This issue was reported to OpenSSL by Michal Zalewski (Google). 5945 ([CVE-2015-1790]) 5946 5947 *Emilia Käsper* 5948 5949 * CMS verify infinite loop with unknown hash function 5950 5951 When verifying a signedData message the CMS code can enter an infinite loop 5952 if presented with an unknown hash function OID. This can be used to perform 5953 denial of service against any system which verifies signedData messages using 5954 the CMS code. 5955 This issue was reported to OpenSSL by Johannes Bauer. 5956 ([CVE-2015-1792]) 5957 5958 *Stephen Henson* 5959 5960 * Race condition handling NewSessionTicket 5961 5962 If a NewSessionTicket is received by a multi-threaded client when attempting to 5963 reuse a previous ticket then a race condition can occur potentially leading to 5964 a double free of the ticket data. 5965 ([CVE-2015-1791]) 5966 5967 *Matt Caswell* 5968 5969 * Only support 256-bit or stronger elliptic curves with the 5970 'ecdh_auto' setting (server) or by default (client). Of supported 5971 curves, prefer P-256 (both). 5972 5973 *Emilia Kasper* 5974 5975### Changes between 1.0.2 and 1.0.2a [19 Mar 2015] 5976 5977 * ClientHello sigalgs DoS fix 5978 5979 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an 5980 invalid signature algorithms extension a NULL pointer dereference will 5981 occur. This can be exploited in a DoS attack against the server. 5982 5983 This issue was was reported to OpenSSL by David Ramos of Stanford 5984 University. 5985 ([CVE-2015-0291]) 5986 5987 *Stephen Henson and Matt Caswell* 5988 5989 * Multiblock corrupted pointer fix 5990 5991 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This 5992 feature only applies on 64 bit x86 architecture platforms that support AES 5993 NI instructions. A defect in the implementation of "multiblock" can cause 5994 OpenSSL's internal write buffer to become incorrectly set to NULL when 5995 using non-blocking IO. Typically, when the user application is using a 5996 socket BIO for writing, this will only result in a failed connection. 5997 However if some other BIO is used then it is likely that a segmentation 5998 fault will be triggered, thus enabling a potential DoS attack. 5999 6000 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller. 6001 ([CVE-2015-0290]) 6002 6003 *Matt Caswell* 6004 6005 * Segmentation fault in DTLSv1_listen fix 6006 6007 The DTLSv1_listen function is intended to be stateless and processes the 6008 initial ClientHello from many peers. It is common for user code to loop 6009 over the call to DTLSv1_listen until a valid ClientHello is received with 6010 an associated cookie. A defect in the implementation of DTLSv1_listen means 6011 that state is preserved in the SSL object from one invocation to the next 6012 that can lead to a segmentation fault. Errors processing the initial 6013 ClientHello can trigger this scenario. An example of such an error could be 6014 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only 6015 server. 6016 6017 This issue was reported to OpenSSL by Per Allansson. 6018 ([CVE-2015-0207]) 6019 6020 *Matt Caswell* 6021 6022 * Segmentation fault in ASN1_TYPE_cmp fix 6023 6024 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 6025 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 6026 certificate signature algorithm consistency this can be used to crash any 6027 certificate verification operation and exploited in a DoS attack. Any 6028 application which performs certificate verification is vulnerable including 6029 OpenSSL clients and servers which enable client authentication. 6030 ([CVE-2015-0286]) 6031 6032 *Stephen Henson* 6033 6034 * Segmentation fault for invalid PSS parameters fix 6035 6036 The signature verification routines will crash with a NULL pointer 6037 dereference if presented with an ASN.1 signature using the RSA PSS 6038 algorithm and invalid parameters. Since these routines are used to verify 6039 certificate signature algorithms this can be used to crash any 6040 certificate verification operation and exploited in a DoS attack. Any 6041 application which performs certificate verification is vulnerable including 6042 OpenSSL clients and servers which enable client authentication. 6043 6044 This issue was was reported to OpenSSL by Brian Carpenter. 6045 ([CVE-2015-0208]) 6046 6047 *Stephen Henson* 6048 6049 * ASN.1 structure reuse memory corruption fix 6050 6051 Reusing a structure in ASN.1 parsing may allow an attacker to cause 6052 memory corruption via an invalid write. Such reuse is and has been 6053 strongly discouraged and is believed to be rare. 6054 6055 Applications that parse structures containing CHOICE or ANY DEFINED BY 6056 components may be affected. Certificate parsing (d2i_X509 and related 6057 functions) are however not affected. OpenSSL clients and servers are 6058 not affected. 6059 ([CVE-2015-0287]) 6060 6061 *Stephen Henson* 6062 6063 * PKCS7 NULL pointer dereferences fix 6064 6065 The PKCS#7 parsing code does not handle missing outer ContentInfo 6066 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 6067 missing content and trigger a NULL pointer dereference on parsing. 6068 6069 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 6070 otherwise parse PKCS#7 structures from untrusted sources are 6071 affected. OpenSSL clients and servers are not affected. 6072 6073 This issue was reported to OpenSSL by Michal Zalewski (Google). 6074 ([CVE-2015-0289]) 6075 6076 *Emilia Käsper* 6077 6078 * DoS via reachable assert in SSLv2 servers fix 6079 6080 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 6081 servers that both support SSLv2 and enable export cipher suites by sending 6082 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 6083 6084 This issue was discovered by Sean Burford (Google) and Emilia Käsper 6085 (OpenSSL development team). 6086 ([CVE-2015-0293]) 6087 6088 *Emilia Käsper* 6089 6090 * Empty CKE with client auth and DHE fix 6091 6092 If client auth is used then a server can seg fault in the event of a DHE 6093 ciphersuite being selected and a zero length ClientKeyExchange message 6094 being sent by the client. This could be exploited in a DoS attack. 6095 ([CVE-2015-1787]) 6096 6097 *Matt Caswell* 6098 6099 * Handshake with unseeded PRNG fix 6100 6101 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake 6102 with an unseeded PRNG. The conditions are: 6103 - The client is on a platform where the PRNG has not been seeded 6104 automatically, and the user has not seeded manually 6105 - A protocol specific client method version has been used (i.e. not 6106 SSL_client_methodv23) 6107 - A ciphersuite is used that does not require additional random data from 6108 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA). 6109 6110 If the handshake succeeds then the client random that has been used will 6111 have been generated from a PRNG with insufficient entropy and therefore the 6112 output may be predictable. 6113 6114 For example using the following command with an unseeded openssl will 6115 succeed on an unpatched platform: 6116 6117 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA 6118 ([CVE-2015-0285]) 6119 6120 *Matt Caswell* 6121 6122 * Use After Free following d2i_ECPrivatekey error fix 6123 6124 A malformed EC private key file consumed via the d2i_ECPrivateKey function 6125 could cause a use after free condition. This, in turn, could cause a double 6126 free in several private key parsing functions (such as d2i_PrivateKey 6127 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 6128 for applications that receive EC private keys from untrusted 6129 sources. This scenario is considered rare. 6130 6131 This issue was discovered by the BoringSSL project and fixed in their 6132 commit 517073cd4b. 6133 ([CVE-2015-0209]) 6134 6135 *Matt Caswell* 6136 6137 * X509_to_X509_REQ NULL pointer deref fix 6138 6139 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 6140 the certificate key is invalid. This function is rarely used in practice. 6141 6142 This issue was discovered by Brian Carpenter. 6143 ([CVE-2015-0288]) 6144 6145 *Stephen Henson* 6146 6147 * Removed the export ciphers from the DEFAULT ciphers 6148 6149 *Kurt Roeckx* 6150 6151### Changes between 1.0.1l and 1.0.2 [22 Jan 2015] 6152 6153 * Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g. 6154 ARMv5 through ARMv8, as opposite to "locking" it to single one. 6155 So far those who have to target multiple platforms would compromise 6156 and argue that binary targeting say ARMv5 would still execute on 6157 ARMv8. "Universal" build resolves this compromise by providing 6158 near-optimal performance even on newer platforms. 6159 6160 *Andy Polyakov* 6161 6162 * Accelerated NIST P-256 elliptic curve implementation for x86_64 6163 (other platforms pending). 6164 6165 *Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov* 6166 6167 * Add support for the SignedCertificateTimestampList certificate and 6168 OCSP response extensions from RFC6962. 6169 6170 *Rob Stradling* 6171 6172 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 6173 for corner cases. (Certain input points at infinity could lead to 6174 bogus results, with non-infinity inputs mapped to infinity too.) 6175 6176 *Bodo Moeller* 6177 6178 * Initial support for PowerISA 2.0.7, first implemented in POWER8. 6179 This covers AES, SHA256/512 and GHASH. "Initial" means that most 6180 common cases are optimized and there still is room for further 6181 improvements. Vector Permutation AES for Altivec is also added. 6182 6183 *Andy Polyakov* 6184 6185 * Add support for little-endian ppc64 Linux target. 6186 6187 *Marcelo Cerri (IBM)* 6188 6189 * Initial support for AMRv8 ISA crypto extensions. This covers AES, 6190 SHA1, SHA256 and GHASH. "Initial" means that most common cases 6191 are optimized and there still is room for further improvements. 6192 Both 32- and 64-bit modes are supported. 6193 6194 *Andy Polyakov, Ard Biesheuvel (Linaro)* 6195 6196 * Improved ARMv7 NEON support. 6197 6198 *Andy Polyakov* 6199 6200 * Support for SPARC Architecture 2011 crypto extensions, first 6201 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1, 6202 SHA256/512, MD5, GHASH and modular exponentiation. 6203 6204 *Andy Polyakov, David Miller* 6205 6206 * Accelerated modular exponentiation for Intel processors, a.k.a. 6207 RSAZ. 6208 6209 *Shay Gueron & Vlad Krasnov (Intel Corp)* 6210 6211 * Support for new and upcoming Intel processors, including AVX2, 6212 BMI and SHA ISA extensions. This includes additional "stitched" 6213 implementations, AESNI-SHA256 and GCM, and multi-buffer support 6214 for TLS encrypt. 6215 6216 This work was sponsored by Intel Corp. 6217 6218 *Andy Polyakov* 6219 6220 * Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method() 6221 supports both DTLS 1.2 and 1.0 and should use whatever version the peer 6222 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only. 6223 6224 *Steve Henson* 6225 6226 * Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 6227 this fixes a limitation in previous versions of OpenSSL. 6228 6229 *Steve Henson* 6230 6231 * Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 6232 MGF1 digest and OAEP label. 6233 6234 *Steve Henson* 6235 6236 * Add EVP support for key wrapping algorithms, to avoid problems with 6237 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 6238 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 6239 algorithms and include tests cases. 6240 6241 *Steve Henson* 6242 6243 * Add functions to allocate and set the fields of an ECDSA_METHOD 6244 structure. 6245 6246 *Douglas E. Engert, Steve Henson* 6247 6248 * New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the 6249 difference in days and seconds between two tm or ASN1_TIME structures. 6250 6251 *Steve Henson* 6252 6253 * Add -rev test option to s_server to just reverse order of characters 6254 received by client and send back to server. Also prints an abbreviated 6255 summary of the connection parameters. 6256 6257 *Steve Henson* 6258 6259 * New option -brief for s_client and s_server to print out a brief summary 6260 of connection parameters. 6261 6262 *Steve Henson* 6263 6264 * Add callbacks for arbitrary TLS extensions. 6265 6266 *Trevor Perrin <trevp@trevp.net> and Ben Laurie* 6267 6268 * New option -crl_download in several openssl utilities to download CRLs 6269 from CRLDP extension in certificates. 6270 6271 *Steve Henson* 6272 6273 * New options -CRL and -CRLform for s_client and s_server for CRLs. 6274 6275 *Steve Henson* 6276 6277 * New function X509_CRL_diff to generate a delta CRL from the difference 6278 of two full CRLs. Add support to "crl" utility. 6279 6280 *Steve Henson* 6281 6282 * New functions to set lookup_crls function and to retrieve 6283 X509_STORE from X509_STORE_CTX. 6284 6285 *Steve Henson* 6286 6287 * Print out deprecated issuer and subject unique ID fields in 6288 certificates. 6289 6290 *Steve Henson* 6291 6292 * Extend OCSP I/O functions so they can be used for simple general purpose 6293 HTTP as well as OCSP. New wrapper function which can be used to download 6294 CRLs using the OCSP API. 6295 6296 *Steve Henson* 6297 6298 * Delegate command line handling in s_client/s_server to SSL_CONF APIs. 6299 6300 *Steve Henson* 6301 6302 * `SSL_CONF*` functions. These provide a common framework for application 6303 configuration using configuration files or command lines. 6304 6305 *Steve Henson* 6306 6307 * SSL/TLS tracing code. This parses out SSL/TLS records using the 6308 message callback and prints the results. Needs compile time option 6309 "enable-ssl-trace". New options to s_client and s_server to enable 6310 tracing. 6311 6312 *Steve Henson* 6313 6314 * New ctrl and macro to retrieve supported points extensions. 6315 Print out extension in s_server and s_client. 6316 6317 *Steve Henson* 6318 6319 * New functions to retrieve certificate signature and signature 6320 OID NID. 6321 6322 *Steve Henson* 6323 6324 * Add functions to retrieve and manipulate the raw cipherlist sent by a 6325 client to OpenSSL. 6326 6327 *Steve Henson* 6328 6329 * New Suite B modes for TLS code. These use and enforce the requirements 6330 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and 6331 only use Suite B curves. The Suite B modes can be set by using the 6332 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring. 6333 6334 *Steve Henson* 6335 6336 * New chain verification flags for Suite B levels of security. Check 6337 algorithms are acceptable when flags are set in X509_verify_cert. 6338 6339 *Steve Henson* 6340 6341 * Make tls1_check_chain return a set of flags indicating checks passed 6342 by a certificate chain. Add additional tests to handle client 6343 certificates: checks for matching certificate type and issuer name 6344 comparison. 6345 6346 *Steve Henson* 6347 6348 * If an attempt is made to use a signature algorithm not in the peer 6349 preference list abort the handshake. If client has no suitable 6350 signature algorithms in response to a certificate request do not 6351 use the certificate. 6352 6353 *Steve Henson* 6354 6355 * If server EC tmp key is not in client preference list abort handshake. 6356 6357 *Steve Henson* 6358 6359 * Add support for certificate stores in CERT structure. This makes it 6360 possible to have different stores per SSL structure or one store in 6361 the parent SSL_CTX. Include distinct stores for certificate chain 6362 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN 6363 to build and store a certificate chain in CERT structure: returning 6364 an error if the chain cannot be built: this will allow applications 6365 to test if a chain is correctly configured. 6366 6367 Note: if the CERT based stores are not set then the parent SSL_CTX 6368 store is used to retain compatibility with existing behaviour. 6369 6370 *Steve Henson* 6371 6372 * New function ssl_set_client_disabled to set a ciphersuite disabled 6373 mask based on the current session, check mask when sending client 6374 hello and checking the requested ciphersuite. 6375 6376 *Steve Henson* 6377 6378 * New ctrls to retrieve and set certificate types in a certificate 6379 request message. Print out received values in s_client. If certificate 6380 types is not set with custom values set sensible values based on 6381 supported signature algorithms. 6382 6383 *Steve Henson* 6384 6385 * Support for distinct client and server supported signature algorithms. 6386 6387 *Steve Henson* 6388 6389 * Add certificate callback. If set this is called whenever a certificate 6390 is required by client or server. An application can decide which 6391 certificate chain to present based on arbitrary criteria: for example 6392 supported signature algorithms. Add very simple example to s_server. 6393 This fixes many of the problems and restrictions of the existing client 6394 certificate callback: for example you can now clear an existing 6395 certificate and specify the whole chain. 6396 6397 *Steve Henson* 6398 6399 * Add new "valid_flags" field to CERT_PKEY structure which determines what 6400 the certificate can be used for (if anything). Set valid_flags field 6401 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used 6402 to have similar checks in it. 6403 6404 Add new "cert_flags" field to CERT structure and include a "strict mode". 6405 This enforces some TLS certificate requirements (such as only permitting 6406 certificate signature algorithms contained in the supported algorithms 6407 extension) which some implementations ignore: this option should be used 6408 with caution as it could cause interoperability issues. 6409 6410 *Steve Henson* 6411 6412 * Update and tidy signature algorithm extension processing. Work out 6413 shared signature algorithms based on preferences and peer algorithms 6414 and print them out in s_client and s_server. Abort handshake if no 6415 shared signature algorithms. 6416 6417 *Steve Henson* 6418 6419 * Add new functions to allow customised supported signature algorithms 6420 for SSL and SSL_CTX structures. Add options to s_client and s_server 6421 to support them. 6422 6423 *Steve Henson* 6424 6425 * New function SSL_certs_clear() to delete all references to certificates 6426 from an SSL structure. Before this once a certificate had been added 6427 it couldn't be removed. 6428 6429 *Steve Henson* 6430 6431 * Integrate hostname, email address and IP address checking with certificate 6432 verification. New verify options supporting checking in openssl utility. 6433 6434 *Steve Henson* 6435 6436 * Fixes and wildcard matching support to hostname and email checking 6437 functions. Add manual page. 6438 6439 *Florian Weimer (Red Hat Product Security Team)* 6440 6441 * New functions to check a hostname email or IP address against a 6442 certificate. Add options x509 utility to print results of checks against 6443 a certificate. 6444 6445 *Steve Henson* 6446 6447 * Fix OCSP checking. 6448 6449 *Rob Stradling <rob.stradling@comodo.com> and Ben Laurie* 6450 6451 * Initial experimental support for explicitly trusted non-root CAs. 6452 OpenSSL still tries to build a complete chain to a root but if an 6453 intermediate CA has a trust setting included that is used. The first 6454 setting is used: whether to trust (e.g., -addtrust option to the x509 6455 utility) or reject. 6456 6457 *Steve Henson* 6458 6459 * Add -trusted_first option which attempts to find certificates in the 6460 trusted store even if an untrusted chain is also supplied. 6461 6462 *Steve Henson* 6463 6464 * MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE, 6465 platform support for Linux and Android. 6466 6467 *Andy Polyakov* 6468 6469 * Support for linux-x32, ILP32 environment in x86_64 framework. 6470 6471 *Andy Polyakov* 6472 6473 * Experimental multi-implementation support for FIPS capable OpenSSL. 6474 When in FIPS mode the approved implementations are used as normal, 6475 when not in FIPS mode the internal unapproved versions are used instead. 6476 This means that the FIPS capable OpenSSL isn't forced to use the 6477 (often lower performance) FIPS implementations outside FIPS mode. 6478 6479 *Steve Henson* 6480 6481 * Transparently support X9.42 DH parameters when calling 6482 PEM_read_bio_DHparameters. This means existing applications can handle 6483 the new parameter format automatically. 6484 6485 *Steve Henson* 6486 6487 * Initial experimental support for X9.42 DH parameter format: mainly 6488 to support use of 'q' parameter for RFC5114 parameters. 6489 6490 *Steve Henson* 6491 6492 * Add DH parameters from RFC5114 including test data to dhtest. 6493 6494 *Steve Henson* 6495 6496 * Support for automatic EC temporary key parameter selection. If enabled 6497 the most preferred EC parameters are automatically used instead of 6498 hardcoded fixed parameters. Now a server just has to call: 6499 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically 6500 support ECDH and use the most appropriate parameters. 6501 6502 *Steve Henson* 6503 6504 * Enhance and tidy EC curve and point format TLS extension code. Use 6505 static structures instead of allocation if default values are used. 6506 New ctrls to set curves we wish to support and to retrieve shared curves. 6507 Print out shared curves in s_server. New options to s_server and s_client 6508 to set list of supported curves. 6509 6510 *Steve Henson* 6511 6512 * New ctrls to retrieve supported signature algorithms and 6513 supported curve values as an array of NIDs. Extend openssl utility 6514 to print out received values. 6515 6516 *Steve Henson* 6517 6518 * Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert 6519 between NIDs and the more common NIST names such as "P-256". Enhance 6520 ecparam utility and ECC method to recognise the NIST names for curves. 6521 6522 *Steve Henson* 6523 6524 * Enhance SSL/TLS certificate chain handling to support different 6525 chains for each certificate instead of one chain in the parent SSL_CTX. 6526 6527 *Steve Henson* 6528 6529 * Support for fixed DH ciphersuite client authentication: where both 6530 server and client use DH certificates with common parameters. 6531 6532 *Steve Henson* 6533 6534 * Support for fixed DH ciphersuites: those requiring DH server 6535 certificates. 6536 6537 *Steve Henson* 6538 6539 * New function i2d_re_X509_tbs for re-encoding the TBS portion of 6540 the certificate. 6541 Note: Related 1.0.2-beta specific macros X509_get_cert_info, 6542 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and 6543 X509_CINF_get_signature were reverted post internal team review. 6544 6545OpenSSL 1.0.1 6546------------- 6547 6548### Changes between 1.0.1t and 1.0.1u [22 Sep 2016] 6549 6550 * OCSP Status Request extension unbounded memory growth 6551 6552 A malicious client can send an excessively large OCSP Status Request 6553 extension. If that client continually requests renegotiation, sending a 6554 large OCSP Status Request extension each time, then there will be unbounded 6555 memory growth on the server. This will eventually lead to a Denial Of 6556 Service attack through memory exhaustion. Servers with a default 6557 configuration are vulnerable even if they do not support OCSP. Builds using 6558 the "no-ocsp" build time option are not affected. 6559 6560 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6561 ([CVE-2016-6304]) 6562 6563 *Matt Caswell* 6564 6565 * In order to mitigate the SWEET32 attack, the DES ciphers were moved from 6566 HIGH to MEDIUM. 6567 6568 This issue was reported to OpenSSL Karthikeyan Bhargavan and Gaetan 6569 Leurent (INRIA) 6570 ([CVE-2016-2183]) 6571 6572 *Rich Salz* 6573 6574 * OOB write in MDC2_Update() 6575 6576 An overflow can occur in MDC2_Update() either if called directly or 6577 through the EVP_DigestUpdate() function using MDC2. If an attacker 6578 is able to supply very large amounts of input data after a previous 6579 call to EVP_EncryptUpdate() with a partial block then a length check 6580 can overflow resulting in a heap corruption. 6581 6582 The amount of data needed is comparable to SIZE_MAX which is impractical 6583 on most platforms. 6584 6585 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6586 ([CVE-2016-6303]) 6587 6588 *Stephen Henson* 6589 6590 * Malformed SHA512 ticket DoS 6591 6592 If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a 6593 DoS attack where a malformed ticket will result in an OOB read which will 6594 ultimately crash. 6595 6596 The use of SHA512 in TLS session tickets is comparatively rare as it requires 6597 a custom server callback and ticket lookup mechanism. 6598 6599 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6600 ([CVE-2016-6302]) 6601 6602 *Stephen Henson* 6603 6604 * OOB write in BN_bn2dec() 6605 6606 The function BN_bn2dec() does not check the return value of BN_div_word(). 6607 This can cause an OOB write if an application uses this function with an 6608 overly large BIGNUM. This could be a problem if an overly large certificate 6609 or CRL is printed out from an untrusted source. TLS is not affected because 6610 record limits will reject an oversized certificate before it is parsed. 6611 6612 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6613 ([CVE-2016-2182]) 6614 6615 *Stephen Henson* 6616 6617 * OOB read in TS_OBJ_print_bio() 6618 6619 The function TS_OBJ_print_bio() misuses OBJ_obj2txt(): the return value is 6620 the total length the OID text representation would use and not the amount 6621 of data written. This will result in OOB reads when large OIDs are 6622 presented. 6623 6624 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6625 ([CVE-2016-2180]) 6626 6627 *Stephen Henson* 6628 6629 * Pointer arithmetic undefined behaviour 6630 6631 Avoid some undefined pointer arithmetic 6632 6633 A common idiom in the codebase is to check limits in the following manner: 6634 "p + len > limit" 6635 6636 Where "p" points to some malloc'd data of SIZE bytes and 6637 limit == p + SIZE 6638 6639 "len" here could be from some externally supplied data (e.g. from a TLS 6640 message). 6641 6642 The rules of C pointer arithmetic are such that "p + len" is only well 6643 defined where len <= SIZE. Therefore the above idiom is actually 6644 undefined behaviour. 6645 6646 For example this could cause problems if some malloc implementation 6647 provides an address for "p" such that "p + len" actually overflows for 6648 values of len that are too big and therefore p + len < limit. 6649 6650 This issue was reported to OpenSSL by Guido Vranken 6651 ([CVE-2016-2177]) 6652 6653 *Matt Caswell* 6654 6655 * Constant time flag not preserved in DSA signing 6656 6657 Operations in the DSA signing algorithm should run in constant time in 6658 order to avoid side channel attacks. A flaw in the OpenSSL DSA 6659 implementation means that a non-constant time codepath is followed for 6660 certain operations. This has been demonstrated through a cache-timing 6661 attack to be sufficient for an attacker to recover the private DSA key. 6662 6663 This issue was reported by César Pereida (Aalto University), Billy Brumley 6664 (Tampere University of Technology), and Yuval Yarom (The University of 6665 Adelaide and NICTA). 6666 ([CVE-2016-2178]) 6667 6668 *César Pereida* 6669 6670 * DTLS buffered message DoS 6671 6672 In a DTLS connection where handshake messages are delivered out-of-order 6673 those messages that OpenSSL is not yet ready to process will be buffered 6674 for later use. Under certain circumstances, a flaw in the logic means that 6675 those messages do not get removed from the buffer even though the handshake 6676 has been completed. An attacker could force up to approx. 15 messages to 6677 remain in the buffer when they are no longer required. These messages will 6678 be cleared when the DTLS connection is closed. The default maximum size for 6679 a message is 100k. Therefore the attacker could force an additional 1500k 6680 to be consumed per connection. By opening many simulataneous connections an 6681 attacker could cause a DoS attack through memory exhaustion. 6682 6683 This issue was reported to OpenSSL by Quan Luo. 6684 ([CVE-2016-2179]) 6685 6686 *Matt Caswell* 6687 6688 * DTLS replay protection DoS 6689 6690 A flaw in the DTLS replay attack protection mechanism means that records 6691 that arrive for future epochs update the replay protection "window" before 6692 the MAC for the record has been validated. This could be exploited by an 6693 attacker by sending a record for the next epoch (which does not have to 6694 decrypt or have a valid MAC), with a very large sequence number. This means 6695 that all subsequent legitimate packets are dropped causing a denial of 6696 service for a specific DTLS connection. 6697 6698 This issue was reported to OpenSSL by the OCAP audit team. 6699 ([CVE-2016-2181]) 6700 6701 *Matt Caswell* 6702 6703 * Certificate message OOB reads 6704 6705 In OpenSSL 1.0.2 and earlier some missing message length checks can result 6706 in OOB reads of up to 2 bytes beyond an allocated buffer. There is a 6707 theoretical DoS risk but this has not been observed in practice on common 6708 platforms. 6709 6710 The messages affected are client certificate, client certificate request 6711 and server certificate. As a result the attack can only be performed 6712 against a client or a server which enables client authentication. 6713 6714 This issue was reported to OpenSSL by Shi Lei (Gear Team, Qihoo 360 Inc.) 6715 ([CVE-2016-6306]) 6716 6717 *Stephen Henson* 6718 6719### Changes between 1.0.1s and 1.0.1t [3 May 2016] 6720 6721 * Prevent padding oracle in AES-NI CBC MAC check 6722 6723 A MITM attacker can use a padding oracle attack to decrypt traffic 6724 when the connection uses an AES CBC cipher and the server support 6725 AES-NI. 6726 6727 This issue was introduced as part of the fix for Lucky 13 padding 6728 attack ([CVE-2013-0169]). The padding check was rewritten to be in 6729 constant time by making sure that always the same bytes are read and 6730 compared against either the MAC or padding bytes. But it no longer 6731 checked that there was enough data to have both the MAC and padding 6732 bytes. 6733 6734 This issue was reported by Juraj Somorovsky using TLS-Attacker. 6735 ([CVE-2016-2107]) 6736 6737 *Kurt Roeckx* 6738 6739 * Fix EVP_EncodeUpdate overflow 6740 6741 An overflow can occur in the EVP_EncodeUpdate() function which is used for 6742 Base64 encoding of binary data. If an attacker is able to supply very large 6743 amounts of input data then a length check can overflow resulting in a heap 6744 corruption. 6745 6746 Internally to OpenSSL the EVP_EncodeUpdate() function is primarly used by 6747 the `PEM_write_bio*` family of functions. These are mainly used within the 6748 OpenSSL command line applications, so any application which processes data 6749 from an untrusted source and outputs it as a PEM file should be considered 6750 vulnerable to this issue. User applications that call these APIs directly 6751 with large amounts of untrusted data may also be vulnerable. 6752 6753 This issue was reported by Guido Vranken. 6754 ([CVE-2016-2105]) 6755 6756 *Matt Caswell* 6757 6758 * Fix EVP_EncryptUpdate overflow 6759 6760 An overflow can occur in the EVP_EncryptUpdate() function. If an attacker 6761 is able to supply very large amounts of input data after a previous call to 6762 EVP_EncryptUpdate() with a partial block then a length check can overflow 6763 resulting in a heap corruption. Following an analysis of all OpenSSL 6764 internal usage of the EVP_EncryptUpdate() function all usage is one of two 6765 forms. The first form is where the EVP_EncryptUpdate() call is known to be 6766 the first called function after an EVP_EncryptInit(), and therefore that 6767 specific call must be safe. The second form is where the length passed to 6768 EVP_EncryptUpdate() can be seen from the code to be some small value and 6769 therefore there is no possibility of an overflow. Since all instances are 6770 one of these two forms, it is believed that there can be no overflows in 6771 internal code due to this problem. It should be noted that 6772 EVP_DecryptUpdate() can call EVP_EncryptUpdate() in certain code paths. 6773 Also EVP_CipherUpdate() is a synonym for EVP_EncryptUpdate(). All instances 6774 of these calls have also been analysed too and it is believed there are no 6775 instances in internal usage where an overflow could occur. 6776 6777 This issue was reported by Guido Vranken. 6778 ([CVE-2016-2106]) 6779 6780 *Matt Caswell* 6781 6782 * Prevent ASN.1 BIO excessive memory allocation 6783 6784 When ASN.1 data is read from a BIO using functions such as d2i_CMS_bio() 6785 a short invalid encoding can casuse allocation of large amounts of memory 6786 potentially consuming excessive resources or exhausting memory. 6787 6788 Any application parsing untrusted data through d2i BIO functions is 6789 affected. The memory based functions such as d2i_X509() are *not* affected. 6790 Since the memory based functions are used by the TLS library, TLS 6791 applications are not affected. 6792 6793 This issue was reported by Brian Carpenter. 6794 ([CVE-2016-2109]) 6795 6796 *Stephen Henson* 6797 6798 * EBCDIC overread 6799 6800 ASN1 Strings that are over 1024 bytes can cause an overread in applications 6801 using the X509_NAME_oneline() function on EBCDIC systems. This could result 6802 in arbitrary stack data being returned in the buffer. 6803 6804 This issue was reported by Guido Vranken. 6805 ([CVE-2016-2176]) 6806 6807 *Matt Caswell* 6808 6809 * Modify behavior of ALPN to invoke callback after SNI/servername 6810 callback, such that updates to the SSL_CTX affect ALPN. 6811 6812 *Todd Short* 6813 6814 * Remove LOW from the DEFAULT cipher list. This removes singles DES from the 6815 default. 6816 6817 *Kurt Roeckx* 6818 6819 * Only remove the SSLv2 methods with the no-ssl2-method option. When the 6820 methods are enabled and ssl2 is disabled the methods return NULL. 6821 6822 *Kurt Roeckx* 6823 6824### Changes between 1.0.1r and 1.0.1s [1 Mar 2016] 6825 6826* Disable weak ciphers in SSLv3 and up in default builds of OpenSSL. 6827 Builds that are not configured with "enable-weak-ssl-ciphers" will not 6828 provide any "EXPORT" or "LOW" strength ciphers. 6829 6830 *Viktor Dukhovni* 6831 6832* Disable SSLv2 default build, default negotiation and weak ciphers. SSLv2 6833 is by default disabled at build-time. Builds that are not configured with 6834 "enable-ssl2" will not support SSLv2. Even if "enable-ssl2" is used, 6835 users who want to negotiate SSLv2 via the version-flexible SSLv23_method() 6836 will need to explicitly call either of: 6837 6838 SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2); 6839 or 6840 SSL_clear_options(ssl, SSL_OP_NO_SSLv2); 6841 6842 as appropriate. Even if either of those is used, or the application 6843 explicitly uses the version-specific SSLv2_method() or its client and 6844 server variants, SSLv2 ciphers vulnerable to exhaustive search key 6845 recovery have been removed. Specifically, the SSLv2 40-bit EXPORT 6846 ciphers, and SSLv2 56-bit DES are no longer available. 6847 ([CVE-2016-0800]) 6848 6849 *Viktor Dukhovni* 6850 6851 * Fix a double-free in DSA code 6852 6853 A double free bug was discovered when OpenSSL parses malformed DSA private 6854 keys and could lead to a DoS attack or memory corruption for applications 6855 that receive DSA private keys from untrusted sources. This scenario is 6856 considered rare. 6857 6858 This issue was reported to OpenSSL by Adam Langley(Google/BoringSSL) using 6859 libFuzzer. 6860 ([CVE-2016-0705]) 6861 6862 *Stephen Henson* 6863 6864 * Disable SRP fake user seed to address a server memory leak. 6865 6866 Add a new method SRP_VBASE_get1_by_user that handles the seed properly. 6867 6868 SRP_VBASE_get_by_user had inconsistent memory management behaviour. 6869 In order to fix an unavoidable memory leak, SRP_VBASE_get_by_user 6870 was changed to ignore the "fake user" SRP seed, even if the seed 6871 is configured. 6872 6873 Users should use SRP_VBASE_get1_by_user instead. Note that in 6874 SRP_VBASE_get1_by_user, caller must free the returned value. Note 6875 also that even though configuring the SRP seed attempts to hide 6876 invalid usernames by continuing the handshake with fake 6877 credentials, this behaviour is not constant time and no strong 6878 guarantees are made that the handshake is indistinguishable from 6879 that of a valid user. 6880 ([CVE-2016-0798]) 6881 6882 *Emilia Käsper* 6883 6884 * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption 6885 6886 In the BN_hex2bn function the number of hex digits is calculated using an 6887 int value `i`. Later `bn_expand` is called with a value of `i * 4`. For 6888 large values of `i` this can result in `bn_expand` not allocating any 6889 memory because `i * 4` is negative. This can leave the internal BIGNUM data 6890 field as NULL leading to a subsequent NULL ptr deref. For very large values 6891 of `i`, the calculation `i * 4` could be a positive value smaller than `i`. 6892 In this case memory is allocated to the internal BIGNUM data field, but it 6893 is insufficiently sized leading to heap corruption. A similar issue exists 6894 in BN_dec2bn. This could have security consequences if BN_hex2bn/BN_dec2bn 6895 is ever called by user applications with very large untrusted hex/dec data. 6896 This is anticipated to be a rare occurrence. 6897 6898 All OpenSSL internal usage of these functions use data that is not expected 6899 to be untrusted, e.g. config file data or application command line 6900 arguments. If user developed applications generate config file data based 6901 on untrusted data then it is possible that this could also lead to security 6902 consequences. This is also anticipated to be rare. 6903 6904 This issue was reported to OpenSSL by Guido Vranken. 6905 ([CVE-2016-0797]) 6906 6907 *Matt Caswell* 6908 6909 * Fix memory issues in `BIO_*printf` functions 6910 6911 The internal `fmtstr` function used in processing a "%s" format string in 6912 the `BIO_*printf` functions could overflow while calculating the length of a 6913 string and cause an OOB read when printing very long strings. 6914 6915 Additionally the internal `doapr_outch` function can attempt to write to an 6916 OOB memory location (at an offset from the NULL pointer) in the event of a 6917 memory allocation failure. In 1.0.2 and below this could be caused where 6918 the size of a buffer to be allocated is greater than INT_MAX. E.g. this 6919 could be in processing a very long "%s" format string. Memory leaks can 6920 also occur. 6921 6922 The first issue may mask the second issue dependent on compiler behaviour. 6923 These problems could enable attacks where large amounts of untrusted data 6924 is passed to the `BIO_*printf` functions. If applications use these functions 6925 in this way then they could be vulnerable. OpenSSL itself uses these 6926 functions when printing out human-readable dumps of ASN.1 data. Therefore 6927 applications that print this data could be vulnerable if the data is from 6928 untrusted sources. OpenSSL command line applications could also be 6929 vulnerable where they print out ASN.1 data, or if untrusted data is passed 6930 as command line arguments. 6931 6932 Libssl is not considered directly vulnerable. Additionally certificates etc 6933 received via remote connections via libssl are also unlikely to be able to 6934 trigger these issues because of message size limits enforced within libssl. 6935 6936 This issue was reported to OpenSSL Guido Vranken. 6937 ([CVE-2016-0799]) 6938 6939 *Matt Caswell* 6940 6941 * Side channel attack on modular exponentiation 6942 6943 A side-channel attack was found which makes use of cache-bank conflicts on 6944 the Intel Sandy-Bridge microarchitecture which could lead to the recovery 6945 of RSA keys. The ability to exploit this issue is limited as it relies on 6946 an attacker who has control of code in a thread running on the same 6947 hyper-threaded core as the victim thread which is performing decryptions. 6948 6949 This issue was reported to OpenSSL by Yuval Yarom, The University of 6950 Adelaide and NICTA, Daniel Genkin, Technion and Tel Aviv University, and 6951 Nadia Heninger, University of Pennsylvania with more information at 6952 <http://cachebleed.info>. 6953 ([CVE-2016-0702]) 6954 6955 *Andy Polyakov* 6956 6957 * Change the req command to generate a 2048-bit RSA/DSA key by default, 6958 if no keysize is specified with default_bits. This fixes an 6959 omission in an earlier change that changed all RSA/DSA key generation 6960 commands to use 2048 bits by default. 6961 6962 *Emilia Käsper* 6963 6964### Changes between 1.0.1q and 1.0.1r [28 Jan 2016] 6965 6966 * Protection for DH small subgroup attacks 6967 6968 As a precautionary measure the SSL_OP_SINGLE_DH_USE option has been 6969 switched on by default and cannot be disabled. This could have some 6970 performance impact. 6971 6972 *Matt Caswell* 6973 6974 * SSLv2 doesn't block disabled ciphers 6975 6976 A malicious client can negotiate SSLv2 ciphers that have been disabled on 6977 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have 6978 been disabled, provided that the SSLv2 protocol was not also disabled via 6979 SSL_OP_NO_SSLv2. 6980 6981 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram 6982 and Sebastian Schinzel. 6983 ([CVE-2015-3197]) 6984 6985 *Viktor Dukhovni* 6986 6987 * Reject DH handshakes with parameters shorter than 1024 bits. 6988 6989 *Kurt Roeckx* 6990 6991### Changes between 1.0.1p and 1.0.1q [3 Dec 2015] 6992 6993 * Certificate verify crash with missing PSS parameter 6994 6995 The signature verification routines will crash with a NULL pointer 6996 dereference if presented with an ASN.1 signature using the RSA PSS 6997 algorithm and absent mask generation function parameter. Since these 6998 routines are used to verify certificate signature algorithms this can be 6999 used to crash any certificate verification operation and exploited in a 7000 DoS attack. Any application which performs certificate verification is 7001 vulnerable including OpenSSL clients and servers which enable client 7002 authentication. 7003 7004 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG). 7005 ([CVE-2015-3194]) 7006 7007 *Stephen Henson* 7008 7009 * X509_ATTRIBUTE memory leak 7010 7011 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 7012 memory. This structure is used by the PKCS#7 and CMS routines so any 7013 application which reads PKCS#7 or CMS data from untrusted sources is 7014 affected. SSL/TLS is not affected. 7015 7016 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 7017 libFuzzer. 7018 ([CVE-2015-3195]) 7019 7020 *Stephen Henson* 7021 7022 * Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs. 7023 This changes the decoding behaviour for some invalid messages, 7024 though the change is mostly in the more lenient direction, and 7025 legacy behaviour is preserved as much as possible. 7026 7027 *Emilia Käsper* 7028 7029 * In DSA_generate_parameters_ex, if the provided seed is too short, 7030 use a random seed, as already documented. 7031 7032 *Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>* 7033 7034### Changes between 1.0.1o and 1.0.1p [9 Jul 2015] 7035 7036 * Alternate chains certificate forgery 7037 7038 During certificate verfification, OpenSSL will attempt to find an 7039 alternative certificate chain if the first attempt to build such a chain 7040 fails. An error in the implementation of this logic can mean that an 7041 attacker could cause certain checks on untrusted certificates to be 7042 bypassed, such as the CA flag, enabling them to use a valid leaf 7043 certificate to act as a CA and "issue" an invalid certificate. 7044 7045 This issue was reported to OpenSSL by Adam Langley/David Benjamin 7046 (Google/BoringSSL). 7047 ([CVE-2015-1793]) 7048 7049 *Matt Caswell* 7050 7051 * Race condition handling PSK identify hint 7052 7053 If PSK identity hints are received by a multi-threaded client then 7054 the values are wrongly updated in the parent SSL_CTX structure. This can 7055 result in a race condition potentially leading to a double free of the 7056 identify hint data. 7057 ([CVE-2015-3196]) 7058 7059 *Stephen Henson* 7060 7061### Changes between 1.0.1n and 1.0.1o [12 Jun 2015] 7062 7063 * Fix HMAC ABI incompatibility. The previous version introduced an ABI 7064 incompatibility in the handling of HMAC. The previous ABI has now been 7065 restored. 7066 7067### Changes between 1.0.1m and 1.0.1n [11 Jun 2015] 7068 7069 * Malformed ECParameters causes infinite loop 7070 7071 When processing an ECParameters structure OpenSSL enters an infinite loop 7072 if the curve specified is over a specially malformed binary polynomial 7073 field. 7074 7075 This can be used to perform denial of service against any 7076 system which processes public keys, certificate requests or 7077 certificates. This includes TLS clients and TLS servers with 7078 client authentication enabled. 7079 7080 This issue was reported to OpenSSL by Joseph Barr-Pixton. 7081 ([CVE-2015-1788]) 7082 7083 *Andy Polyakov* 7084 7085 * Exploitable out-of-bounds read in X509_cmp_time 7086 7087 X509_cmp_time does not properly check the length of the ASN1_TIME 7088 string and can read a few bytes out of bounds. In addition, 7089 X509_cmp_time accepts an arbitrary number of fractional seconds in the 7090 time string. 7091 7092 An attacker can use this to craft malformed certificates and CRLs of 7093 various sizes and potentially cause a segmentation fault, resulting in 7094 a DoS on applications that verify certificates or CRLs. TLS clients 7095 that verify CRLs are affected. TLS clients and servers with client 7096 authentication enabled may be affected if they use custom verification 7097 callbacks. 7098 7099 This issue was reported to OpenSSL by Robert Swiecki (Google), and 7100 independently by Hanno Böck. 7101 ([CVE-2015-1789]) 7102 7103 *Emilia Käsper* 7104 7105 * PKCS7 crash with missing EnvelopedContent 7106 7107 The PKCS#7 parsing code does not handle missing inner EncryptedContent 7108 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 7109 with missing content and trigger a NULL pointer dereference on parsing. 7110 7111 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 7112 structures from untrusted sources are affected. OpenSSL clients and 7113 servers are not affected. 7114 7115 This issue was reported to OpenSSL by Michal Zalewski (Google). 7116 ([CVE-2015-1790]) 7117 7118 *Emilia Käsper* 7119 7120 * CMS verify infinite loop with unknown hash function 7121 7122 When verifying a signedData message the CMS code can enter an infinite loop 7123 if presented with an unknown hash function OID. This can be used to perform 7124 denial of service against any system which verifies signedData messages using 7125 the CMS code. 7126 This issue was reported to OpenSSL by Johannes Bauer. 7127 ([CVE-2015-1792]) 7128 7129 *Stephen Henson* 7130 7131 * Race condition handling NewSessionTicket 7132 7133 If a NewSessionTicket is received by a multi-threaded client when attempting to 7134 reuse a previous ticket then a race condition can occur potentially leading to 7135 a double free of the ticket data. 7136 ([CVE-2015-1791]) 7137 7138 *Matt Caswell* 7139 7140 * Reject DH handshakes with parameters shorter than 768 bits. 7141 7142 *Kurt Roeckx and Emilia Kasper* 7143 7144 * dhparam: generate 2048-bit parameters by default. 7145 7146 *Kurt Roeckx and Emilia Kasper* 7147 7148### Changes between 1.0.1l and 1.0.1m [19 Mar 2015] 7149 7150 * Segmentation fault in ASN1_TYPE_cmp fix 7151 7152 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 7153 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 7154 certificate signature algorithm consistency this can be used to crash any 7155 certificate verification operation and exploited in a DoS attack. Any 7156 application which performs certificate verification is vulnerable including 7157 OpenSSL clients and servers which enable client authentication. 7158 ([CVE-2015-0286]) 7159 7160 *Stephen Henson* 7161 7162 * ASN.1 structure reuse memory corruption fix 7163 7164 Reusing a structure in ASN.1 parsing may allow an attacker to cause 7165 memory corruption via an invalid write. Such reuse is and has been 7166 strongly discouraged and is believed to be rare. 7167 7168 Applications that parse structures containing CHOICE or ANY DEFINED BY 7169 components may be affected. Certificate parsing (d2i_X509 and related 7170 functions) are however not affected. OpenSSL clients and servers are 7171 not affected. 7172 ([CVE-2015-0287]) 7173 7174 *Stephen Henson* 7175 7176 * PKCS7 NULL pointer dereferences fix 7177 7178 The PKCS#7 parsing code does not handle missing outer ContentInfo 7179 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 7180 missing content and trigger a NULL pointer dereference on parsing. 7181 7182 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 7183 otherwise parse PKCS#7 structures from untrusted sources are 7184 affected. OpenSSL clients and servers are not affected. 7185 7186 This issue was reported to OpenSSL by Michal Zalewski (Google). 7187 ([CVE-2015-0289]) 7188 7189 *Emilia Käsper* 7190 7191 * DoS via reachable assert in SSLv2 servers fix 7192 7193 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 7194 servers that both support SSLv2 and enable export cipher suites by sending 7195 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 7196 7197 This issue was discovered by Sean Burford (Google) and Emilia Käsper 7198 (OpenSSL development team). 7199 ([CVE-2015-0293]) 7200 7201 *Emilia Käsper* 7202 7203 * Use After Free following d2i_ECPrivatekey error fix 7204 7205 A malformed EC private key file consumed via the d2i_ECPrivateKey function 7206 could cause a use after free condition. This, in turn, could cause a double 7207 free in several private key parsing functions (such as d2i_PrivateKey 7208 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 7209 for applications that receive EC private keys from untrusted 7210 sources. This scenario is considered rare. 7211 7212 This issue was discovered by the BoringSSL project and fixed in their 7213 commit 517073cd4b. 7214 ([CVE-2015-0209]) 7215 7216 *Matt Caswell* 7217 7218 * X509_to_X509_REQ NULL pointer deref fix 7219 7220 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 7221 the certificate key is invalid. This function is rarely used in practice. 7222 7223 This issue was discovered by Brian Carpenter. 7224 ([CVE-2015-0288]) 7225 7226 *Stephen Henson* 7227 7228 * Removed the export ciphers from the DEFAULT ciphers 7229 7230 *Kurt Roeckx* 7231 7232### Changes between 1.0.1k and 1.0.1l [15 Jan 2015] 7233 7234 * Build fixes for the Windows and OpenVMS platforms 7235 7236 *Matt Caswell and Richard Levitte* 7237 7238### Changes between 1.0.1j and 1.0.1k [8 Jan 2015] 7239 7240 * Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 7241 message can cause a segmentation fault in OpenSSL due to a NULL pointer 7242 dereference. This could lead to a Denial Of Service attack. Thanks to 7243 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 7244 ([CVE-2014-3571]) 7245 7246 *Steve Henson* 7247 7248 * Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 7249 dtls1_buffer_record function under certain conditions. In particular this 7250 could occur if an attacker sent repeated DTLS records with the same 7251 sequence number but for the next epoch. The memory leak could be exploited 7252 by an attacker in a Denial of Service attack through memory exhaustion. 7253 Thanks to Chris Mueller for reporting this issue. 7254 ([CVE-2015-0206]) 7255 7256 *Matt Caswell* 7257 7258 * Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 7259 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 7260 method would be set to NULL which could later result in a NULL pointer 7261 dereference. Thanks to Frank Schmirler for reporting this issue. 7262 ([CVE-2014-3569]) 7263 7264 *Kurt Roeckx* 7265 7266 * Abort handshake if server key exchange message is omitted for ephemeral 7267 ECDH ciphersuites. 7268 7269 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 7270 reporting this issue. 7271 ([CVE-2014-3572]) 7272 7273 *Steve Henson* 7274 7275 * Remove non-export ephemeral RSA code on client and server. This code 7276 violated the TLS standard by allowing the use of temporary RSA keys in 7277 non-export ciphersuites and could be used by a server to effectively 7278 downgrade the RSA key length used to a value smaller than the server 7279 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 7280 INRIA or reporting this issue. 7281 ([CVE-2015-0204]) 7282 7283 *Steve Henson* 7284 7285 * Fixed issue where DH client certificates are accepted without verification. 7286 An OpenSSL server will accept a DH certificate for client authentication 7287 without the certificate verify message. This effectively allows a client to 7288 authenticate without the use of a private key. This only affects servers 7289 which trust a client certificate authority which issues certificates 7290 containing DH keys: these are extremely rare and hardly ever encountered. 7291 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 7292 this issue. 7293 ([CVE-2015-0205]) 7294 7295 *Steve Henson* 7296 7297 * Ensure that the session ID context of an SSL is updated when its 7298 SSL_CTX is updated via SSL_set_SSL_CTX. 7299 7300 The session ID context is typically set from the parent SSL_CTX, 7301 and can vary with the CTX. 7302 7303 *Adam Langley* 7304 7305 * Fix various certificate fingerprint issues. 7306 7307 By using non-DER or invalid encodings outside the signed portion of a 7308 certificate the fingerprint can be changed without breaking the signature. 7309 Although no details of the signed portion of the certificate can be changed 7310 this can cause problems with some applications: e.g. those using the 7311 certificate fingerprint for blacklists. 7312 7313 1. Reject signatures with non zero unused bits. 7314 7315 If the BIT STRING containing the signature has non zero unused bits reject 7316 the signature. All current signature algorithms require zero unused bits. 7317 7318 2. Check certificate algorithm consistency. 7319 7320 Check the AlgorithmIdentifier inside TBS matches the one in the 7321 certificate signature. NB: this will result in signature failure 7322 errors for some broken certificates. 7323 7324 Thanks to Konrad Kraszewski from Google for reporting this issue. 7325 7326 3. Check DSA/ECDSA signatures use DER. 7327 7328 Re-encode DSA/ECDSA signatures and compare with the original received 7329 signature. Return an error if there is a mismatch. 7330 7331 This will reject various cases including garbage after signature 7332 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 7333 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 7334 (negative or with leading zeroes). 7335 7336 Further analysis was conducted and fixes were developed by Stephen Henson 7337 of the OpenSSL core team. 7338 7339 ([CVE-2014-8275]) 7340 7341 *Steve Henson* 7342 7343 * Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 7344 results on some platforms, including x86_64. This bug occurs at random 7345 with a very low probability, and is not known to be exploitable in any 7346 way, though its exact impact is difficult to determine. Thanks to Pieter 7347 Wuille (Blockstream) who reported this issue and also suggested an initial 7348 fix. Further analysis was conducted by the OpenSSL development team and 7349 Adam Langley of Google. The final fix was developed by Andy Polyakov of 7350 the OpenSSL core team. 7351 ([CVE-2014-3570]) 7352 7353 *Andy Polyakov* 7354 7355 * Do not resume sessions on the server if the negotiated protocol 7356 version does not match the session's version. Resuming with a different 7357 version, while not strictly forbidden by the RFC, is of questionable 7358 sanity and breaks all known clients. 7359 7360 *David Benjamin, Emilia Käsper* 7361 7362 * Tighten handling of the ChangeCipherSpec (CCS) message: reject 7363 early CCS messages during renegotiation. (Note that because 7364 renegotiation is encrypted, this early CCS was not exploitable.) 7365 7366 *Emilia Käsper* 7367 7368 * Tighten client-side session ticket handling during renegotiation: 7369 ensure that the client only accepts a session ticket if the server sends 7370 the extension anew in the ServerHello. Previously, a TLS client would 7371 reuse the old extension state and thus accept a session ticket if one was 7372 announced in the initial ServerHello. 7373 7374 Similarly, ensure that the client requires a session ticket if one 7375 was advertised in the ServerHello. Previously, a TLS client would 7376 ignore a missing NewSessionTicket message. 7377 7378 *Emilia Käsper* 7379 7380### Changes between 1.0.1i and 1.0.1j [15 Oct 2014] 7381 7382 * SRTP Memory Leak. 7383 7384 A flaw in the DTLS SRTP extension parsing code allows an attacker, who 7385 sends a carefully crafted handshake message, to cause OpenSSL to fail 7386 to free up to 64k of memory causing a memory leak. This could be 7387 exploited in a Denial Of Service attack. This issue affects OpenSSL 7388 1.0.1 server implementations for both SSL/TLS and DTLS regardless of 7389 whether SRTP is used or configured. Implementations of OpenSSL that 7390 have been compiled with OPENSSL_NO_SRTP defined are not affected. 7391 7392 The fix was developed by the OpenSSL team. 7393 ([CVE-2014-3513]) 7394 7395 *OpenSSL team* 7396 7397 * Session Ticket Memory Leak. 7398 7399 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 7400 integrity of that ticket is first verified. In the event of a session 7401 ticket integrity check failing, OpenSSL will fail to free memory 7402 causing a memory leak. By sending a large number of invalid session 7403 tickets an attacker could exploit this issue in a Denial Of Service 7404 attack. 7405 ([CVE-2014-3567]) 7406 7407 *Steve Henson* 7408 7409 * Build option no-ssl3 is incomplete. 7410 7411 When OpenSSL is configured with "no-ssl3" as a build option, servers 7412 could accept and complete a SSL 3.0 handshake, and clients could be 7413 configured to send them. 7414 ([CVE-2014-3568]) 7415 7416 *Akamai and the OpenSSL team* 7417 7418 * Add support for TLS_FALLBACK_SCSV. 7419 Client applications doing fallback retries should call 7420 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 7421 ([CVE-2014-3566]) 7422 7423 *Adam Langley, Bodo Moeller* 7424 7425 * Add additional DigestInfo checks. 7426 7427 Re-encode DigestInto in DER and check against the original when 7428 verifying RSA signature: this will reject any improperly encoded 7429 DigestInfo structures. 7430 7431 Note: this is a precautionary measure and no attacks are currently known. 7432 7433 *Steve Henson* 7434 7435### Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 7436 7437 * Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 7438 SRP code can be overrun an internal buffer. Add sanity check that 7439 g, A, B < N to SRP code. 7440 7441 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 7442 Group for discovering this issue. 7443 ([CVE-2014-3512]) 7444 7445 *Steve Henson* 7446 7447 * A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 7448 TLS 1.0 instead of higher protocol versions when the ClientHello message 7449 is badly fragmented. This allows a man-in-the-middle attacker to force a 7450 downgrade to TLS 1.0 even if both the server and the client support a 7451 higher protocol version, by modifying the client's TLS records. 7452 7453 Thanks to David Benjamin and Adam Langley (Google) for discovering and 7454 researching this issue. 7455 ([CVE-2014-3511]) 7456 7457 *David Benjamin* 7458 7459 * OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 7460 to a denial of service attack. A malicious server can crash the client 7461 with a null pointer dereference (read) by specifying an anonymous (EC)DH 7462 ciphersuite and sending carefully crafted handshake messages. 7463 7464 Thanks to Felix Gröbert (Google) for discovering and researching this 7465 issue. 7466 ([CVE-2014-3510]) 7467 7468 *Emilia Käsper* 7469 7470 * By sending carefully crafted DTLS packets an attacker could cause openssl 7471 to leak memory. This can be exploited through a Denial of Service attack. 7472 Thanks to Adam Langley for discovering and researching this issue. 7473 ([CVE-2014-3507]) 7474 7475 *Adam Langley* 7476 7477 * An attacker can force openssl to consume large amounts of memory whilst 7478 processing DTLS handshake messages. This can be exploited through a 7479 Denial of Service attack. 7480 Thanks to Adam Langley for discovering and researching this issue. 7481 ([CVE-2014-3506]) 7482 7483 *Adam Langley* 7484 7485 * An attacker can force an error condition which causes openssl to crash 7486 whilst processing DTLS packets due to memory being freed twice. This 7487 can be exploited through a Denial of Service attack. 7488 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 7489 this issue. 7490 ([CVE-2014-3505]) 7491 7492 *Adam Langley* 7493 7494 * If a multithreaded client connects to a malicious server using a resumed 7495 session and the server sends an ec point format extension it could write 7496 up to 255 bytes to freed memory. 7497 7498 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 7499 issue. 7500 ([CVE-2014-3509]) 7501 7502 *Gabor Tyukasz* 7503 7504 * A malicious server can crash an OpenSSL client with a null pointer 7505 dereference (read) by specifying an SRP ciphersuite even though it was not 7506 properly negotiated with the client. This can be exploited through a 7507 Denial of Service attack. 7508 7509 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for 7510 discovering and researching this issue. 7511 ([CVE-2014-5139]) 7512 7513 *Steve Henson* 7514 7515 * A flaw in OBJ_obj2txt may cause pretty printing functions such as 7516 X509_name_oneline, X509_name_print_ex et al. to leak some information 7517 from the stack. Applications may be affected if they echo pretty printing 7518 output to the attacker. 7519 7520 Thanks to Ivan Fratric (Google) for discovering this issue. 7521 ([CVE-2014-3508]) 7522 7523 *Emilia Käsper, and Steve Henson* 7524 7525 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 7526 for corner cases. (Certain input points at infinity could lead to 7527 bogus results, with non-infinity inputs mapped to infinity too.) 7528 7529 *Bodo Moeller* 7530 7531### Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 7532 7533 * Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 7534 handshake can force the use of weak keying material in OpenSSL 7535 SSL/TLS clients and servers. 7536 7537 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 7538 researching this issue. ([CVE-2014-0224]) 7539 7540 *KIKUCHI Masashi, Steve Henson* 7541 7542 * Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 7543 OpenSSL DTLS client the code can be made to recurse eventually crashing 7544 in a DoS attack. 7545 7546 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 7547 ([CVE-2014-0221]) 7548 7549 *Imre Rad, Steve Henson* 7550 7551 * Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 7552 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 7553 client or server. This is potentially exploitable to run arbitrary 7554 code on a vulnerable client or server. 7555 7556 Thanks to Jüri Aedla for reporting this issue. ([CVE-2014-0195]) 7557 7558 *Jüri Aedla, Steve Henson* 7559 7560 * Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 7561 are subject to a denial of service attack. 7562 7563 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 7564 this issue. ([CVE-2014-3470]) 7565 7566 *Felix Gröbert, Ivan Fratric, Steve Henson* 7567 7568 * Harmonize version and its documentation. -f flag is used to display 7569 compilation flags. 7570 7571 *mancha <mancha1@zoho.com>* 7572 7573 * Fix eckey_priv_encode so it immediately returns an error upon a failure 7574 in i2d_ECPrivateKey. 7575 7576 *mancha <mancha1@zoho.com>* 7577 7578 * Fix some double frees. These are not thought to be exploitable. 7579 7580 *mancha <mancha1@zoho.com>* 7581 7582### Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 7583 7584 * A missing bounds check in the handling of the TLS heartbeat extension 7585 can be used to reveal up to 64k of memory to a connected client or 7586 server. 7587 7588 Thanks for Neel Mehta of Google Security for discovering this bug and to 7589 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 7590 preparing the fix ([CVE-2014-0160]) 7591 7592 *Adam Langley, Bodo Moeller* 7593 7594 * Fix for the attack described in the paper "Recovering OpenSSL 7595 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 7596 by Yuval Yarom and Naomi Benger. Details can be obtained from: 7597 <http://eprint.iacr.org/2014/140> 7598 7599 Thanks to Yuval Yarom and Naomi Benger for discovering this 7600 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 7601 7602 *Yuval Yarom and Naomi Benger* 7603 7604 * TLS pad extension: draft-agl-tls-padding-03 7605 7606 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 7607 TLS client Hello record length value would otherwise be > 255 and 7608 less that 512 pad with a dummy extension containing zeroes so it 7609 is at least 512 bytes long. 7610 7611 *Adam Langley, Steve Henson* 7612 7613### Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 7614 7615 * Fix for TLS record tampering bug. A carefully crafted invalid 7616 handshake could crash OpenSSL with a NULL pointer exception. 7617 Thanks to Anton Johansson for reporting this issues. 7618 ([CVE-2013-4353]) 7619 7620 * Keep original DTLS digest and encryption contexts in retransmission 7621 structures so we can use the previous session parameters if they need 7622 to be resent. ([CVE-2013-6450]) 7623 7624 *Steve Henson* 7625 7626 * Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 7627 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 7628 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 7629 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 7630 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 7631 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 7632 7633 *Rob Stradling, Adam Langley* 7634 7635### Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 7636 7637 * Correct fix for CVE-2013-0169. The original didn't work on AES-NI 7638 supporting platforms or when small records were transferred. 7639 7640 *Andy Polyakov, Steve Henson* 7641 7642### Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 7643 7644 * Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 7645 7646 This addresses the flaw in CBC record processing discovered by 7647 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 7648 at: <http://www.isg.rhul.ac.uk/tls/> 7649 7650 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 7651 Security Group at Royal Holloway, University of London 7652 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 7653 Emilia Käsper for the initial patch. 7654 ([CVE-2013-0169]) 7655 7656 *Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson* 7657 7658 * Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 7659 ciphersuites which can be exploited in a denial of service attack. 7660 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 7661 and detecting this bug and to Wolfgang Ettlinger 7662 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 7663 ([CVE-2012-2686]) 7664 7665 *Adam Langley* 7666 7667 * Return an error when checking OCSP signatures when key is NULL. 7668 This fixes a DoS attack. ([CVE-2013-0166]) 7669 7670 *Steve Henson* 7671 7672 * Make openssl verify return errors. 7673 7674 *Chris Palmer <palmer@google.com> and Ben Laurie* 7675 7676 * Call OCSP Stapling callback after ciphersuite has been chosen, so 7677 the right response is stapled. Also change SSL_get_certificate() 7678 so it returns the certificate actually sent. 7679 See <http://rt.openssl.org/Ticket/Display.html?id=2836>. 7680 7681 *Rob Stradling <rob.stradling@comodo.com>* 7682 7683 * Fix possible deadlock when decoding public keys. 7684 7685 *Steve Henson* 7686 7687 * Don't use TLS 1.0 record version number in initial client hello 7688 if renegotiating. 7689 7690 *Steve Henson* 7691 7692### Changes between 1.0.1b and 1.0.1c [10 May 2012] 7693 7694 * Sanity check record length before skipping explicit IV in TLS 7695 1.2, 1.1 and DTLS to fix DoS attack. 7696 7697 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 7698 fuzzing as a service testing platform. 7699 ([CVE-2012-2333]) 7700 7701 *Steve Henson* 7702 7703 * Initialise tkeylen properly when encrypting CMS messages. 7704 Thanks to Solar Designer of Openwall for reporting this issue. 7705 7706 *Steve Henson* 7707 7708 * In FIPS mode don't try to use composite ciphers as they are not 7709 approved. 7710 7711 *Steve Henson* 7712 7713### Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 7714 7715 * OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 7716 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 7717 mean any application compiled against OpenSSL 1.0.0 headers setting 7718 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disabling 7719 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 7720 0x10000000L Any application which was previously compiled against 7721 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 7722 will need to be recompiled as a result. Letting be results in 7723 inability to disable specifically TLS 1.1 and in client context, 7724 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 7725 7726 *Steve Henson* 7727 7728 * In order to ensure interoperability SSL_OP_NO_protocolX does not 7729 disable just protocol X, but all protocols above X *if* there are 7730 protocols *below* X still enabled. In more practical terms it means 7731 that if application wants to disable TLS1.0 in favor of TLS1.1 and 7732 above, it's not sufficient to pass `SSL_OP_NO_TLSv1`, one has to pass 7733 `SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2`. This applies to 7734 client side. 7735 7736 *Andy Polyakov* 7737 7738### Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 7739 7740 * Check for potentially exploitable overflows in asn1_d2i_read_bio 7741 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 7742 in CRYPTO_realloc_clean. 7743 7744 Thanks to Tavis Ormandy, Google Security Team, for discovering this 7745 issue and to Adam Langley <agl@chromium.org> for fixing it. 7746 ([CVE-2012-2110]) 7747 7748 *Adam Langley (Google), Tavis Ormandy, Google Security Team* 7749 7750 * Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 7751 7752 *Adam Langley* 7753 7754 * Workarounds for some broken servers that "hang" if a client hello 7755 record length exceeds 255 bytes. 7756 7757 1. Do not use record version number > TLS 1.0 in initial client 7758 hello: some (but not all) hanging servers will now work. 7759 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 7760 the number of ciphers sent in the client hello. This should be 7761 set to an even number, such as 50, for example by passing: 7762 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 7763 Most broken servers should now work. 7764 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 7765 TLS 1.2 client support entirely. 7766 7767 *Steve Henson* 7768 7769 * Fix SEGV in Vector Permutation AES module observed in OpenSSH. 7770 7771 *Andy Polyakov* 7772 7773### Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 7774 7775 * Add compatibility with old MDC2 signatures which use an ASN1 OCTET 7776 STRING form instead of a DigestInfo. 7777 7778 *Steve Henson* 7779 7780 * The format used for MDC2 RSA signatures is inconsistent between EVP 7781 and the RSA_sign/RSA_verify functions. This was made more apparent when 7782 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 7783 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 7784 the correct format in RSA_verify so both forms transparently work. 7785 7786 *Steve Henson* 7787 7788 * Some servers which support TLS 1.0 can choke if we initially indicate 7789 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 7790 encrypted premaster secret. As a workaround use the maximum permitted 7791 client version in client hello, this should keep such servers happy 7792 and still work with previous versions of OpenSSL. 7793 7794 *Steve Henson* 7795 7796 * Add support for TLS/DTLS heartbeats. 7797 7798 *Robin Seggelmann <seggelmann@fh-muenster.de>* 7799 7800 * Add support for SCTP. 7801 7802 *Robin Seggelmann <seggelmann@fh-muenster.de>* 7803 7804 * Improved PRNG seeding for VOS. 7805 7806 *Paul Green <Paul.Green@stratus.com>* 7807 7808 * Extensive assembler packs updates, most notably: 7809 7810 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 7811 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 7812 - x86_64: bit-sliced AES implementation; 7813 - ARM: NEON support, contemporary platforms optimizations; 7814 - s390x: z196 support; 7815 - `*`: GHASH and GF(2^m) multiplication implementations; 7816 7817 *Andy Polyakov* 7818 7819 * Make TLS-SRP code conformant with RFC 5054 API cleanup 7820 (removal of unnecessary code) 7821 7822 *Peter Sylvester <peter.sylvester@edelweb.fr>* 7823 7824 * Add TLS key material exporter from RFC 5705. 7825 7826 *Eric Rescorla* 7827 7828 * Add DTLS-SRTP negotiation from RFC 5764. 7829 7830 *Eric Rescorla* 7831 7832 * Add Next Protocol Negotiation, 7833 <http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00>. Can be 7834 disabled with a no-npn flag to config or Configure. Code donated 7835 by Google. 7836 7837 *Adam Langley <agl@google.com> and Ben Laurie* 7838 7839 * Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 7840 NIST-P256, NIST-P521, with constant-time single point multiplication on 7841 typical inputs. Compiler support for the nonstandard type `__uint128_t` is 7842 required to use this (present in gcc 4.4 and later, for 64-bit builds). 7843 Code made available under Apache License version 2.0. 7844 7845 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 7846 line to include this in your build of OpenSSL, and run "make depend" (or 7847 "make update"). This enables the following EC_METHODs: 7848 7849 EC_GFp_nistp224_method() 7850 EC_GFp_nistp256_method() 7851 EC_GFp_nistp521_method() 7852 7853 EC_GROUP_new_by_curve_name() will automatically use these (while 7854 EC_GROUP_new_curve_GFp() currently prefers the more flexible 7855 implementations). 7856 7857 *Emilia Käsper, Adam Langley, Bodo Moeller (Google)* 7858 7859 * Use type ossl_ssize_t instead of ssize_t which isn't available on 7860 all platforms. Move ssize_t definition from e_os.h to the public 7861 header file e_os2.h as it now appears in public header file cms.h 7862 7863 *Steve Henson* 7864 7865 * New -sigopt option to the ca, req and x509 utilities. Additional 7866 signature parameters can be passed using this option and in 7867 particular PSS. 7868 7869 *Steve Henson* 7870 7871 * Add RSA PSS signing function. This will generate and set the 7872 appropriate AlgorithmIdentifiers for PSS based on those in the 7873 corresponding EVP_MD_CTX structure. No application support yet. 7874 7875 *Steve Henson* 7876 7877 * Support for companion algorithm specific ASN1 signing routines. 7878 New function ASN1_item_sign_ctx() signs a pre-initialised 7879 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 7880 the appropriate parameters. 7881 7882 *Steve Henson* 7883 7884 * Add new algorithm specific ASN1 verification initialisation function 7885 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 7886 handling will be the same no matter what EVP_PKEY_METHOD is used. 7887 Add a PSS handler to support verification of PSS signatures: checked 7888 against a number of sample certificates. 7889 7890 *Steve Henson* 7891 7892 * Add signature printing for PSS. Add PSS OIDs. 7893 7894 *Steve Henson, Martin Kaiser <lists@kaiser.cx>* 7895 7896 * Add algorithm specific signature printing. An individual ASN1 method 7897 can now print out signatures instead of the standard hex dump. 7898 7899 More complex signatures (e.g. PSS) can print out more meaningful 7900 information. Include DSA version that prints out the signature 7901 parameters r, s. 7902 7903 *Steve Henson* 7904 7905 * Password based recipient info support for CMS library: implementing 7906 RFC3211. 7907 7908 *Steve Henson* 7909 7910 * Split password based encryption into PBES2 and PBKDF2 functions. This 7911 neatly separates the code into cipher and PBE sections and is required 7912 for some algorithms that split PBES2 into separate pieces (such as 7913 password based CMS). 7914 7915 *Steve Henson* 7916 7917 * Session-handling fixes: 7918 - Fix handling of connections that are resuming with a session ID, 7919 but also support Session Tickets. 7920 - Fix a bug that suppressed issuing of a new ticket if the client 7921 presented a ticket with an expired session. 7922 - Try to set the ticket lifetime hint to something reasonable. 7923 - Make tickets shorter by excluding irrelevant information. 7924 - On the client side, don't ignore renewed tickets. 7925 7926 *Adam Langley, Bodo Moeller (Google)* 7927 7928 * Fix PSK session representation. 7929 7930 *Bodo Moeller* 7931 7932 * Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 7933 7934 This work was sponsored by Intel. 7935 7936 *Andy Polyakov* 7937 7938 * Add GCM support to TLS library. Some custom code is needed to split 7939 the IV between the fixed (from PRF) and explicit (from TLS record) 7940 portions. This adds all GCM ciphersuites supported by RFC5288 and 7941 RFC5289. Generalise some `AES*` cipherstrings to include GCM and 7942 add a special AESGCM string for GCM only. 7943 7944 *Steve Henson* 7945 7946 * Expand range of ctrls for AES GCM. Permit setting invocation 7947 field on decrypt and retrieval of invocation field only on encrypt. 7948 7949 *Steve Henson* 7950 7951 * Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 7952 As required by RFC5289 these ciphersuites cannot be used if for 7953 versions of TLS earlier than 1.2. 7954 7955 *Steve Henson* 7956 7957 * For FIPS capable OpenSSL interpret a NULL default public key method 7958 as unset and return the appropriate default but do *not* set the default. 7959 This means we can return the appropriate method in applications that 7960 switch between FIPS and non-FIPS modes. 7961 7962 *Steve Henson* 7963 7964 * Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 7965 ENGINE is used then we cannot handle that in the FIPS module so we 7966 keep original code iff non-FIPS operations are allowed. 7967 7968 *Steve Henson* 7969 7970 * Add -attime option to openssl utilities. 7971 7972 *Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson* 7973 7974 * Redirect DSA and DH operations to FIPS module in FIPS mode. 7975 7976 *Steve Henson* 7977 7978 * Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 7979 FIPS EC methods unconditionally for now. 7980 7981 *Steve Henson* 7982 7983 * New build option no-ec2m to disable characteristic 2 code. 7984 7985 *Steve Henson* 7986 7987 * Backport libcrypto audit of return value checking from 1.1.0-dev; not 7988 all cases can be covered as some introduce binary incompatibilities. 7989 7990 *Steve Henson* 7991 7992 * Redirect RSA operations to FIPS module including keygen, 7993 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 7994 7995 *Steve Henson* 7996 7997 * Add similar low-level API blocking to ciphers. 7998 7999 *Steve Henson* 8000 8001 * low-level digest APIs are not approved in FIPS mode: any attempt 8002 to use these will cause a fatal error. Applications that *really* want 8003 to use them can use the `private_*` version instead. 8004 8005 *Steve Henson* 8006 8007 * Redirect cipher operations to FIPS module for FIPS builds. 8008 8009 *Steve Henson* 8010 8011 * Redirect digest operations to FIPS module for FIPS builds. 8012 8013 *Steve Henson* 8014 8015 * Update build system to add "fips" flag which will link in fipscanister.o 8016 for static and shared library builds embedding a signature if needed. 8017 8018 *Steve Henson* 8019 8020 * Output TLS supported curves in preference order instead of numerical 8021 order. This is currently hardcoded for the highest order curves first. 8022 This should be configurable so applications can judge speed vs strength. 8023 8024 *Steve Henson* 8025 8026 * Add TLS v1.2 server support for client authentication. 8027 8028 *Steve Henson* 8029 8030 * Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 8031 and enable MD5. 8032 8033 *Steve Henson* 8034 8035 * Functions FIPS_mode_set() and FIPS_mode() which call the underlying 8036 FIPS modules versions. 8037 8038 *Steve Henson* 8039 8040 * Add TLS v1.2 client side support for client authentication. Keep cache 8041 of handshake records longer as we don't know the hash algorithm to use 8042 until after the certificate request message is received. 8043 8044 *Steve Henson* 8045 8046 * Initial TLS v1.2 client support. Add a default signature algorithms 8047 extension including all the algorithms we support. Parse new signature 8048 format in client key exchange. Relax some ECC signing restrictions for 8049 TLS v1.2 as indicated in RFC5246. 8050 8051 *Steve Henson* 8052 8053 * Add server support for TLS v1.2 signature algorithms extension. Switch 8054 to new signature format when needed using client digest preference. 8055 All server ciphersuites should now work correctly in TLS v1.2. No client 8056 support yet and no support for client certificates. 8057 8058 *Steve Henson* 8059 8060 * Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 8061 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 8062 ciphersuites. At present only RSA key exchange ciphersuites work with 8063 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 8064 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 8065 and version checking. 8066 8067 *Steve Henson* 8068 8069 * New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 8070 with this defined it will not be affected by any changes to ssl internal 8071 structures. Add several utility functions to allow openssl application 8072 to work with OPENSSL_NO_SSL_INTERN defined. 8073 8074 *Steve Henson* 8075 8076 * A long standing patch to add support for SRP from EdelWeb (Peter 8077 Sylvester and Christophe Renou) was integrated. 8078 *Christophe Renou <christophe.renou@edelweb.fr>, Peter Sylvester 8079 <peter.sylvester@edelweb.fr>, Tom Wu <tjw@cs.stanford.edu>, and 8080 Ben Laurie* 8081 8082 * Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 8083 8084 *Steve Henson* 8085 8086 * Permit abbreviated handshakes when renegotiating using the function 8087 SSL_renegotiate_abbreviated(). 8088 8089 *Robin Seggelmann <seggelmann@fh-muenster.de>* 8090 8091 * Add call to ENGINE_register_all_complete() to 8092 ENGINE_load_builtin_engines(), so some implementations get used 8093 automatically instead of needing explicit application support. 8094 8095 *Steve Henson* 8096 8097 * Add support for TLS key exporter as described in RFC5705. 8098 8099 *Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson* 8100 8101 * Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 8102 a few changes are required: 8103 8104 Add SSL_OP_NO_TLSv1_1 flag. 8105 Add TLSv1_1 methods. 8106 Update version checking logic to handle version 1.1. 8107 Add explicit IV handling (ported from DTLS code). 8108 Add command line options to s_client/s_server. 8109 8110 *Steve Henson* 8111 8112OpenSSL 1.0.0 8113------------- 8114 8115### Changes between 1.0.0s and 1.0.0t [3 Dec 2015] 8116 8117 * X509_ATTRIBUTE memory leak 8118 8119 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak 8120 memory. This structure is used by the PKCS#7 and CMS routines so any 8121 application which reads PKCS#7 or CMS data from untrusted sources is 8122 affected. SSL/TLS is not affected. 8123 8124 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using 8125 libFuzzer. 8126 ([CVE-2015-3195]) 8127 8128 *Stephen Henson* 8129 8130 * Race condition handling PSK identify hint 8131 8132 If PSK identity hints are received by a multi-threaded client then 8133 the values are wrongly updated in the parent SSL_CTX structure. This can 8134 result in a race condition potentially leading to a double free of the 8135 identify hint data. 8136 ([CVE-2015-3196]) 8137 8138 *Stephen Henson* 8139 8140### Changes between 1.0.0r and 1.0.0s [11 Jun 2015] 8141 8142 * Malformed ECParameters causes infinite loop 8143 8144 When processing an ECParameters structure OpenSSL enters an infinite loop 8145 if the curve specified is over a specially malformed binary polynomial 8146 field. 8147 8148 This can be used to perform denial of service against any 8149 system which processes public keys, certificate requests or 8150 certificates. This includes TLS clients and TLS servers with 8151 client authentication enabled. 8152 8153 This issue was reported to OpenSSL by Joseph Barr-Pixton. 8154 ([CVE-2015-1788]) 8155 8156 *Andy Polyakov* 8157 8158 * Exploitable out-of-bounds read in X509_cmp_time 8159 8160 X509_cmp_time does not properly check the length of the ASN1_TIME 8161 string and can read a few bytes out of bounds. In addition, 8162 X509_cmp_time accepts an arbitrary number of fractional seconds in the 8163 time string. 8164 8165 An attacker can use this to craft malformed certificates and CRLs of 8166 various sizes and potentially cause a segmentation fault, resulting in 8167 a DoS on applications that verify certificates or CRLs. TLS clients 8168 that verify CRLs are affected. TLS clients and servers with client 8169 authentication enabled may be affected if they use custom verification 8170 callbacks. 8171 8172 This issue was reported to OpenSSL by Robert Swiecki (Google), and 8173 independently by Hanno Böck. 8174 ([CVE-2015-1789]) 8175 8176 *Emilia Käsper* 8177 8178 * PKCS7 crash with missing EnvelopedContent 8179 8180 The PKCS#7 parsing code does not handle missing inner EncryptedContent 8181 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 8182 with missing content and trigger a NULL pointer dereference on parsing. 8183 8184 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 8185 structures from untrusted sources are affected. OpenSSL clients and 8186 servers are not affected. 8187 8188 This issue was reported to OpenSSL by Michal Zalewski (Google). 8189 ([CVE-2015-1790]) 8190 8191 *Emilia Käsper* 8192 8193 * CMS verify infinite loop with unknown hash function 8194 8195 When verifying a signedData message the CMS code can enter an infinite loop 8196 if presented with an unknown hash function OID. This can be used to perform 8197 denial of service against any system which verifies signedData messages using 8198 the CMS code. 8199 This issue was reported to OpenSSL by Johannes Bauer. 8200 ([CVE-2015-1792]) 8201 8202 *Stephen Henson* 8203 8204 * Race condition handling NewSessionTicket 8205 8206 If a NewSessionTicket is received by a multi-threaded client when attempting to 8207 reuse a previous ticket then a race condition can occur potentially leading to 8208 a double free of the ticket data. 8209 ([CVE-2015-1791]) 8210 8211 *Matt Caswell* 8212 8213### Changes between 1.0.0q and 1.0.0r [19 Mar 2015] 8214 8215 * Segmentation fault in ASN1_TYPE_cmp fix 8216 8217 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 8218 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 8219 certificate signature algorithm consistency this can be used to crash any 8220 certificate verification operation and exploited in a DoS attack. Any 8221 application which performs certificate verification is vulnerable including 8222 OpenSSL clients and servers which enable client authentication. 8223 ([CVE-2015-0286]) 8224 8225 *Stephen Henson* 8226 8227 * ASN.1 structure reuse memory corruption fix 8228 8229 Reusing a structure in ASN.1 parsing may allow an attacker to cause 8230 memory corruption via an invalid write. Such reuse is and has been 8231 strongly discouraged and is believed to be rare. 8232 8233 Applications that parse structures containing CHOICE or ANY DEFINED BY 8234 components may be affected. Certificate parsing (d2i_X509 and related 8235 functions) are however not affected. OpenSSL clients and servers are 8236 not affected. 8237 ([CVE-2015-0287]) 8238 8239 *Stephen Henson* 8240 8241 * PKCS7 NULL pointer dereferences fix 8242 8243 The PKCS#7 parsing code does not handle missing outer ContentInfo 8244 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 8245 missing content and trigger a NULL pointer dereference on parsing. 8246 8247 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 8248 otherwise parse PKCS#7 structures from untrusted sources are 8249 affected. OpenSSL clients and servers are not affected. 8250 8251 This issue was reported to OpenSSL by Michal Zalewski (Google). 8252 ([CVE-2015-0289]) 8253 8254 *Emilia Käsper* 8255 8256 * DoS via reachable assert in SSLv2 servers fix 8257 8258 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 8259 servers that both support SSLv2 and enable export cipher suites by sending 8260 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 8261 8262 This issue was discovered by Sean Burford (Google) and Emilia Käsper 8263 (OpenSSL development team). 8264 ([CVE-2015-0293]) 8265 8266 *Emilia Käsper* 8267 8268 * Use After Free following d2i_ECPrivatekey error fix 8269 8270 A malformed EC private key file consumed via the d2i_ECPrivateKey function 8271 could cause a use after free condition. This, in turn, could cause a double 8272 free in several private key parsing functions (such as d2i_PrivateKey 8273 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 8274 for applications that receive EC private keys from untrusted 8275 sources. This scenario is considered rare. 8276 8277 This issue was discovered by the BoringSSL project and fixed in their 8278 commit 517073cd4b. 8279 ([CVE-2015-0209]) 8280 8281 *Matt Caswell* 8282 8283 * X509_to_X509_REQ NULL pointer deref fix 8284 8285 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 8286 the certificate key is invalid. This function is rarely used in practice. 8287 8288 This issue was discovered by Brian Carpenter. 8289 ([CVE-2015-0288]) 8290 8291 *Stephen Henson* 8292 8293 * Removed the export ciphers from the DEFAULT ciphers 8294 8295 *Kurt Roeckx* 8296 8297### Changes between 1.0.0p and 1.0.0q [15 Jan 2015] 8298 8299 * Build fixes for the Windows and OpenVMS platforms 8300 8301 *Matt Caswell and Richard Levitte* 8302 8303### Changes between 1.0.0o and 1.0.0p [8 Jan 2015] 8304 8305 * Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 8306 message can cause a segmentation fault in OpenSSL due to a NULL pointer 8307 dereference. This could lead to a Denial Of Service attack. Thanks to 8308 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 8309 ([CVE-2014-3571]) 8310 8311 *Steve Henson* 8312 8313 * Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 8314 dtls1_buffer_record function under certain conditions. In particular this 8315 could occur if an attacker sent repeated DTLS records with the same 8316 sequence number but for the next epoch. The memory leak could be exploited 8317 by an attacker in a Denial of Service attack through memory exhaustion. 8318 Thanks to Chris Mueller for reporting this issue. 8319 ([CVE-2015-0206]) 8320 8321 *Matt Caswell* 8322 8323 * Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 8324 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 8325 method would be set to NULL which could later result in a NULL pointer 8326 dereference. Thanks to Frank Schmirler for reporting this issue. 8327 ([CVE-2014-3569]) 8328 8329 *Kurt Roeckx* 8330 8331 * Abort handshake if server key exchange message is omitted for ephemeral 8332 ECDH ciphersuites. 8333 8334 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 8335 reporting this issue. 8336 ([CVE-2014-3572]) 8337 8338 *Steve Henson* 8339 8340 * Remove non-export ephemeral RSA code on client and server. This code 8341 violated the TLS standard by allowing the use of temporary RSA keys in 8342 non-export ciphersuites and could be used by a server to effectively 8343 downgrade the RSA key length used to a value smaller than the server 8344 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 8345 INRIA or reporting this issue. 8346 ([CVE-2015-0204]) 8347 8348 *Steve Henson* 8349 8350 * Fixed issue where DH client certificates are accepted without verification. 8351 An OpenSSL server will accept a DH certificate for client authentication 8352 without the certificate verify message. This effectively allows a client to 8353 authenticate without the use of a private key. This only affects servers 8354 which trust a client certificate authority which issues certificates 8355 containing DH keys: these are extremely rare and hardly ever encountered. 8356 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 8357 this issue. 8358 ([CVE-2015-0205]) 8359 8360 *Steve Henson* 8361 8362 * Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 8363 results on some platforms, including x86_64. This bug occurs at random 8364 with a very low probability, and is not known to be exploitable in any 8365 way, though its exact impact is difficult to determine. Thanks to Pieter 8366 Wuille (Blockstream) who reported this issue and also suggested an initial 8367 fix. Further analysis was conducted by the OpenSSL development team and 8368 Adam Langley of Google. The final fix was developed by Andy Polyakov of 8369 the OpenSSL core team. 8370 ([CVE-2014-3570]) 8371 8372 *Andy Polyakov* 8373 8374 * Fix various certificate fingerprint issues. 8375 8376 By using non-DER or invalid encodings outside the signed portion of a 8377 certificate the fingerprint can be changed without breaking the signature. 8378 Although no details of the signed portion of the certificate can be changed 8379 this can cause problems with some applications: e.g. those using the 8380 certificate fingerprint for blacklists. 8381 8382 1. Reject signatures with non zero unused bits. 8383 8384 If the BIT STRING containing the signature has non zero unused bits reject 8385 the signature. All current signature algorithms require zero unused bits. 8386 8387 2. Check certificate algorithm consistency. 8388 8389 Check the AlgorithmIdentifier inside TBS matches the one in the 8390 certificate signature. NB: this will result in signature failure 8391 errors for some broken certificates. 8392 8393 Thanks to Konrad Kraszewski from Google for reporting this issue. 8394 8395 3. Check DSA/ECDSA signatures use DER. 8396 8397 Reencode DSA/ECDSA signatures and compare with the original received 8398 signature. Return an error if there is a mismatch. 8399 8400 This will reject various cases including garbage after signature 8401 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 8402 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 8403 (negative or with leading zeroes). 8404 8405 Further analysis was conducted and fixes were developed by Stephen Henson 8406 of the OpenSSL core team. 8407 8408 ([CVE-2014-8275]) 8409 8410 *Steve Henson* 8411 8412### Changes between 1.0.0n and 1.0.0o [15 Oct 2014] 8413 8414 * Session Ticket Memory Leak. 8415 8416 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 8417 integrity of that ticket is first verified. In the event of a session 8418 ticket integrity check failing, OpenSSL will fail to free memory 8419 causing a memory leak. By sending a large number of invalid session 8420 tickets an attacker could exploit this issue in a Denial Of Service 8421 attack. 8422 ([CVE-2014-3567]) 8423 8424 *Steve Henson* 8425 8426 * Build option no-ssl3 is incomplete. 8427 8428 When OpenSSL is configured with "no-ssl3" as a build option, servers 8429 could accept and complete a SSL 3.0 handshake, and clients could be 8430 configured to send them. 8431 ([CVE-2014-3568]) 8432 8433 *Akamai and the OpenSSL team* 8434 8435 * Add support for TLS_FALLBACK_SCSV. 8436 Client applications doing fallback retries should call 8437 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 8438 ([CVE-2014-3566]) 8439 8440 *Adam Langley, Bodo Moeller* 8441 8442 * Add additional DigestInfo checks. 8443 8444 Reencode DigestInto in DER and check against the original when 8445 verifying RSA signature: this will reject any improperly encoded 8446 DigestInfo structures. 8447 8448 Note: this is a precautionary measure and no attacks are currently known. 8449 8450 *Steve Henson* 8451 8452### Changes between 1.0.0m and 1.0.0n [6 Aug 2014] 8453 8454 * OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 8455 to a denial of service attack. A malicious server can crash the client 8456 with a null pointer dereference (read) by specifying an anonymous (EC)DH 8457 ciphersuite and sending carefully crafted handshake messages. 8458 8459 Thanks to Felix Gröbert (Google) for discovering and researching this 8460 issue. 8461 ([CVE-2014-3510]) 8462 8463 *Emilia Käsper* 8464 8465 * By sending carefully crafted DTLS packets an attacker could cause openssl 8466 to leak memory. This can be exploited through a Denial of Service attack. 8467 Thanks to Adam Langley for discovering and researching this issue. 8468 ([CVE-2014-3507]) 8469 8470 *Adam Langley* 8471 8472 * An attacker can force openssl to consume large amounts of memory whilst 8473 processing DTLS handshake messages. This can be exploited through a 8474 Denial of Service attack. 8475 Thanks to Adam Langley for discovering and researching this issue. 8476 ([CVE-2014-3506]) 8477 8478 *Adam Langley* 8479 8480 * An attacker can force an error condition which causes openssl to crash 8481 whilst processing DTLS packets due to memory being freed twice. This 8482 can be exploited through a Denial of Service attack. 8483 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 8484 this issue. 8485 ([CVE-2014-3505]) 8486 8487 *Adam Langley* 8488 8489 * If a multithreaded client connects to a malicious server using a resumed 8490 session and the server sends an ec point format extension it could write 8491 up to 255 bytes to freed memory. 8492 8493 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 8494 issue. 8495 ([CVE-2014-3509]) 8496 8497 *Gabor Tyukasz* 8498 8499 * A flaw in OBJ_obj2txt may cause pretty printing functions such as 8500 X509_name_oneline, X509_name_print_ex et al. to leak some information 8501 from the stack. Applications may be affected if they echo pretty printing 8502 output to the attacker. 8503 8504 Thanks to Ivan Fratric (Google) for discovering this issue. 8505 ([CVE-2014-3508]) 8506 8507 *Emilia Käsper, and Steve Henson* 8508 8509 * Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 8510 for corner cases. (Certain input points at infinity could lead to 8511 bogus results, with non-infinity inputs mapped to infinity too.) 8512 8513 *Bodo Moeller* 8514 8515### Changes between 1.0.0l and 1.0.0m [5 Jun 2014] 8516 8517 * Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 8518 handshake can force the use of weak keying material in OpenSSL 8519 SSL/TLS clients and servers. 8520 8521 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 8522 researching this issue. ([CVE-2014-0224]) 8523 8524 *KIKUCHI Masashi, Steve Henson* 8525 8526 * Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 8527 OpenSSL DTLS client the code can be made to recurse eventually crashing 8528 in a DoS attack. 8529 8530 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 8531 ([CVE-2014-0221]) 8532 8533 *Imre Rad, Steve Henson* 8534 8535 * Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 8536 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 8537 client or server. This is potentially exploitable to run arbitrary 8538 code on a vulnerable client or server. 8539 8540 Thanks to Jüri Aedla for reporting this issue. ([CVE-2014-0195]) 8541 8542 *Jüri Aedla, Steve Henson* 8543 8544 * Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 8545 are subject to a denial of service attack. 8546 8547 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering 8548 this issue. ([CVE-2014-3470]) 8549 8550 *Felix Gröbert, Ivan Fratric, Steve Henson* 8551 8552 * Harmonize version and its documentation. -f flag is used to display 8553 compilation flags. 8554 8555 *mancha <mancha1@zoho.com>* 8556 8557 * Fix eckey_priv_encode so it immediately returns an error upon a failure 8558 in i2d_ECPrivateKey. 8559 8560 *mancha <mancha1@zoho.com>* 8561 8562 * Fix some double frees. These are not thought to be exploitable. 8563 8564 *mancha <mancha1@zoho.com>* 8565 8566 * Fix for the attack described in the paper "Recovering OpenSSL 8567 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 8568 by Yuval Yarom and Naomi Benger. Details can be obtained from: 8569 <http://eprint.iacr.org/2014/140> 8570 8571 Thanks to Yuval Yarom and Naomi Benger for discovering this 8572 flaw and to Yuval Yarom for supplying a fix ([CVE-2014-0076]) 8573 8574 *Yuval Yarom and Naomi Benger* 8575 8576### Changes between 1.0.0k and 1.0.0l [6 Jan 2014] 8577 8578 * Keep original DTLS digest and encryption contexts in retransmission 8579 structures so we can use the previous session parameters if they need 8580 to be resent. ([CVE-2013-6450]) 8581 8582 *Steve Henson* 8583 8584 * Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 8585 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 8586 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 8587 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 8588 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 8589 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 8590 8591 *Rob Stradling, Adam Langley* 8592 8593### Changes between 1.0.0j and 1.0.0k [5 Feb 2013] 8594 8595 * Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 8596 8597 This addresses the flaw in CBC record processing discovered by 8598 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 8599 at: <http://www.isg.rhul.ac.uk/tls/> 8600 8601 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 8602 Security Group at Royal Holloway, University of London 8603 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 8604 Emilia Käsper for the initial patch. 8605 ([CVE-2013-0169]) 8606 8607 *Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson* 8608 8609 * Return an error when checking OCSP signatures when key is NULL. 8610 This fixes a DoS attack. ([CVE-2013-0166]) 8611 8612 *Steve Henson* 8613 8614 * Call OCSP Stapling callback after ciphersuite has been chosen, so 8615 the right response is stapled. Also change SSL_get_certificate() 8616 so it returns the certificate actually sent. 8617 See <http://rt.openssl.org/Ticket/Display.html?id=2836>. 8618 (This is a backport) 8619 8620 *Rob Stradling <rob.stradling@comodo.com>* 8621 8622 * Fix possible deadlock when decoding public keys. 8623 8624 *Steve Henson* 8625 8626### Changes between 1.0.0i and 1.0.0j [10 May 2012] 8627 8628[NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after 8629OpenSSL 1.0.1.] 8630 8631 * Sanity check record length before skipping explicit IV in DTLS 8632 to fix DoS attack. 8633 8634 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 8635 fuzzing as a service testing platform. 8636 ([CVE-2012-2333]) 8637 8638 *Steve Henson* 8639 8640 * Initialise tkeylen properly when encrypting CMS messages. 8641 Thanks to Solar Designer of Openwall for reporting this issue. 8642 8643 *Steve Henson* 8644 8645### Changes between 1.0.0h and 1.0.0i [19 Apr 2012] 8646 8647 * Check for potentially exploitable overflows in asn1_d2i_read_bio 8648 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 8649 in CRYPTO_realloc_clean. 8650 8651 Thanks to Tavis Ormandy, Google Security Team, for discovering this 8652 issue and to Adam Langley <agl@chromium.org> for fixing it. 8653 ([CVE-2012-2110]) 8654 8655 *Adam Langley (Google), Tavis Ormandy, Google Security Team* 8656 8657### Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 8658 8659 * Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 8660 in CMS and PKCS7 code. When RSA decryption fails use a random key for 8661 content decryption and always return the same error. Note: this attack 8662 needs on average 2^20 messages so it only affects automated senders. The 8663 old behaviour can be re-enabled in the CMS code by setting the 8664 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 8665 an MMA defence is not necessary. 8666 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 8667 this issue. ([CVE-2012-0884]) 8668 8669 *Steve Henson* 8670 8671 * Fix CVE-2011-4619: make sure we really are receiving a 8672 client hello before rejecting multiple SGC restarts. Thanks to 8673 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 8674 8675 *Steve Henson* 8676 8677### Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 8678 8679 * Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 8680 Thanks to Antonio Martin, Enterprise Secure Access Research and 8681 Development, Cisco Systems, Inc. for discovering this bug and 8682 preparing a fix. ([CVE-2012-0050]) 8683 8684 *Antonio Martin* 8685 8686### Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 8687 8688 * Nadhem Alfardan and Kenny Paterson have discovered an extension 8689 of the Vaudenay padding oracle attack on CBC mode encryption 8690 which enables an efficient plaintext recovery attack against 8691 the OpenSSL implementation of DTLS. Their attack exploits timing 8692 differences arising during decryption processing. A research 8693 paper describing this attack can be found at: 8694 <http://www.isg.rhul.ac.uk/~kp/dtls.pdf> 8695 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 8696 Security Group at Royal Holloway, University of London 8697 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 8698 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 8699 for preparing the fix. ([CVE-2011-4108]) 8700 8701 *Robin Seggelmann, Michael Tuexen* 8702 8703 * Clear bytes used for block padding of SSL 3.0 records. 8704 ([CVE-2011-4576]) 8705 8706 *Adam Langley (Google)* 8707 8708 * Only allow one SGC handshake restart for SSL/TLS. Thanks to George 8709 Kadianakis <desnacked@gmail.com> for discovering this issue and 8710 Adam Langley for preparing the fix. ([CVE-2011-4619]) 8711 8712 *Adam Langley (Google)* 8713 8714 * Check parameters are not NULL in GOST ENGINE. ([CVE-2012-0027]) 8715 8716 *Andrey Kulikov <amdeich@gmail.com>* 8717 8718 * Prevent malformed RFC3779 data triggering an assertion failure. 8719 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 8720 and Rob Austein <sra@hactrn.net> for fixing it. ([CVE-2011-4577]) 8721 8722 *Rob Austein <sra@hactrn.net>* 8723 8724 * Improved PRNG seeding for VOS. 8725 8726 *Paul Green <Paul.Green@stratus.com>* 8727 8728 * Fix ssl_ciph.c set-up race. 8729 8730 *Adam Langley (Google)* 8731 8732 * Fix spurious failures in ecdsatest.c. 8733 8734 *Emilia Käsper (Google)* 8735 8736 * Fix the BIO_f_buffer() implementation (which was mixing different 8737 interpretations of the `..._len` fields). 8738 8739 *Adam Langley (Google)* 8740 8741 * Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 8742 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 8743 threads won't reuse the same blinding coefficients. 8744 8745 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 8746 lock to call BN_BLINDING_invert_ex, and avoids one use of 8747 BN_BLINDING_update for each BN_BLINDING structure (previously, 8748 the last update always remained unused). 8749 8750 *Emilia Käsper (Google)* 8751 8752 * In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 8753 8754 *Bob Buckholz (Google)* 8755 8756### Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 8757 8758 * Fix bug where CRLs with nextUpdate in the past are sometimes accepted 8759 by initialising X509_STORE_CTX properly. ([CVE-2011-3207]) 8760 8761 *Kaspar Brand <ossl@velox.ch>* 8762 8763 * Fix SSL memory handling for (EC)DH ciphersuites, in particular 8764 for multi-threaded use of ECDH. ([CVE-2011-3210]) 8765 8766 *Adam Langley (Google)* 8767 8768 * Fix x509_name_ex_d2i memory leak on bad inputs. 8769 8770 *Bodo Moeller* 8771 8772 * Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 8773 signature public key algorithm by using OID xref utilities instead. 8774 Before this you could only use some ECC ciphersuites with SHA1 only. 8775 8776 *Steve Henson* 8777 8778 * Add protection against ECDSA timing attacks as mentioned in the paper 8779 by Billy Bob Brumley and Nicola Tuveri, see: 8780 <http://eprint.iacr.org/2011/232.pdf> 8781 8782 *Billy Bob Brumley and Nicola Tuveri* 8783 8784### Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 8785 8786 * Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 8787 8788 *Neel Mehta, Adam Langley, Bodo Moeller (Google)* 8789 8790 * Fix bug in string printing code: if *any* escaping is enabled we must 8791 escape the escape character (backslash) or the resulting string is 8792 ambiguous. 8793 8794 *Steve Henson* 8795 8796### Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 8797 8798 * Disable code workaround for ancient and obsolete Netscape browsers 8799 and servers: an attacker can use it in a ciphersuite downgrade attack. 8800 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 8801 8802 *Steve Henson* 8803 8804 * Fixed J-PAKE implementation error, originally discovered by 8805 Sebastien Martini, further info and confirmation from Stefan 8806 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 8807 8808 *Ben Laurie* 8809 8810### Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 8811 8812 * Fix extension code to avoid race conditions which can result in a buffer 8813 overrun vulnerability: resumed sessions must not be modified as they can 8814 be shared by multiple threads. CVE-2010-3864 8815 8816 *Steve Henson* 8817 8818 * Fix WIN32 build system to correctly link an ENGINE directory into 8819 a DLL. 8820 8821 *Steve Henson* 8822 8823### Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 8824 8825 * Check return value of int_rsa_verify in pkey_rsa_verifyrecover 8826 ([CVE-2010-1633]) 8827 8828 *Steve Henson, Peter-Michael Hager <hager@dortmund.net>* 8829 8830### Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 8831 8832 * Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 8833 context. The operation can be customised via the ctrl mechanism in 8834 case ENGINEs want to include additional functionality. 8835 8836 *Steve Henson* 8837 8838 * Tolerate yet another broken PKCS#8 key format: private key value negative. 8839 8840 *Steve Henson* 8841 8842 * Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 8843 output hashes compatible with older versions of OpenSSL. 8844 8845 *Willy Weisz <weisz@vcpc.univie.ac.at>* 8846 8847 * Fix compression algorithm handling: if resuming a session use the 8848 compression algorithm of the resumed session instead of determining 8849 it from client hello again. Don't allow server to change algorithm. 8850 8851 *Steve Henson* 8852 8853 * Add load_crls() function to commands tidying load_certs() too. Add option 8854 to verify utility to allow additional CRLs to be included. 8855 8856 *Steve Henson* 8857 8858 * Update OCSP request code to permit adding custom headers to the request: 8859 some responders need this. 8860 8861 *Steve Henson* 8862 8863 * The function EVP_PKEY_sign() returns <=0 on error: check return code 8864 correctly. 8865 8866 *Julia Lawall <julia@diku.dk>* 8867 8868 * Update verify callback code in `apps/s_cb.c` and `apps/verify.c`, it 8869 needlessly dereferenced structures, used obsolete functions and 8870 didn't handle all updated verify codes correctly. 8871 8872 *Steve Henson* 8873 8874 * Disable MD2 in the default configuration. 8875 8876 *Steve Henson* 8877 8878 * In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 8879 indicate the initial BIO being pushed or popped. This makes it possible 8880 to determine whether the BIO is the one explicitly called or as a result 8881 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 8882 it handles reference counts correctly and doesn't zero out the I/O bio 8883 when it is not being explicitly popped. WARNING: applications which 8884 included workarounds for the old buggy behaviour will need to be modified 8885 or they could free up already freed BIOs. 8886 8887 *Steve Henson* 8888 8889 * Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 8890 renaming to all platforms (within the 0.9.8 branch, this was 8891 done conditionally on Netware platforms to avoid a name clash). 8892 8893 *Guenter <lists@gknw.net>* 8894 8895 * Add ECDHE and PSK support to DTLS. 8896 8897 *Michael Tuexen <tuexen@fh-muenster.de>* 8898 8899 * Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 8900 be used on C++. 8901 8902 *Steve Henson* 8903 8904 * Add "missing" function EVP_MD_flags() (without this the only way to 8905 retrieve a digest flags is by accessing the structure directly. Update 8906 `EVP_MD_do_all*()` and `EVP_CIPHER_do_all*()` to include the name a digest 8907 or cipher is registered as in the "from" argument. Print out all 8908 registered digests in the dgst usage message instead of manually 8909 attempting to work them out. 8910 8911 *Steve Henson* 8912 8913 * If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 8914 this allows the use of compression and extensions. Change default cipher 8915 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 8916 by default unless an application cipher string requests it. 8917 8918 *Steve Henson* 8919 8920 * Alter match criteria in PKCS12_parse(). It used to try to use local 8921 key ids to find matching certificates and keys but some PKCS#12 files 8922 don't follow the (somewhat unwritten) rules and this strategy fails. 8923 Now just gather all certificates together and the first private key 8924 then look for the first certificate that matches the key. 8925 8926 *Steve Henson* 8927 8928 * Support use of registered digest and cipher names for dgst and cipher 8929 commands instead of having to add each one as a special case. So now 8930 you can do: 8931 8932 openssl sha256 foo 8933 8934 as well as: 8935 8936 openssl dgst -sha256 foo 8937 8938 and this works for ENGINE based algorithms too. 8939 8940 *Steve Henson* 8941 8942 * Update Gost ENGINE to support parameter files. 8943 8944 *Victor B. Wagner <vitus@cryptocom.ru>* 8945 8946 * Support GeneralizedTime in ca utility. 8947 8948 *Oliver Martin <oliver@volatilevoid.net>, Steve Henson* 8949 8950 * Enhance the hash format used for certificate directory links. The new 8951 form uses the canonical encoding (meaning equivalent names will work 8952 even if they aren't identical) and uses SHA1 instead of MD5. This form 8953 is incompatible with the older format and as a result c_rehash should 8954 be used to rebuild symbolic links. 8955 8956 *Steve Henson* 8957 8958 * Make PKCS#8 the default write format for private keys, replacing the 8959 traditional format. This form is standardised, more secure and doesn't 8960 include an implicit MD5 dependency. 8961 8962 *Steve Henson* 8963 8964 * Add a $gcc_devteam_warn option to Configure. The idea is that any code 8965 committed to OpenSSL should pass this lot as a minimum. 8966 8967 *Steve Henson* 8968 8969 * Add session ticket override functionality for use by EAP-FAST. 8970 8971 *Jouni Malinen <j@w1.fi>* 8972 8973 * Modify HMAC functions to return a value. Since these can be implemented 8974 in an ENGINE errors can occur. 8975 8976 *Steve Henson* 8977 8978 * Type-checked OBJ_bsearch_ex. 8979 8980 *Ben Laurie* 8981 8982 * Type-checked OBJ_bsearch. Also some constification necessitated 8983 by type-checking. Still to come: TXT_DB, bsearch(?), 8984 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 8985 CONF_VALUE. 8986 8987 *Ben Laurie* 8988 8989 * New function OPENSSL_gmtime_adj() to add a specific number of days and 8990 seconds to a tm structure directly, instead of going through OS 8991 specific date routines. This avoids any issues with OS routines such 8992 as the year 2038 bug. New `*_adj()` functions for ASN1 time structures 8993 and X509_time_adj_ex() to cover the extended range. The existing 8994 X509_time_adj() is still usable and will no longer have any date issues. 8995 8996 *Steve Henson* 8997 8998 * Delta CRL support. New use deltas option which will attempt to locate 8999 and search any appropriate delta CRLs available. 9000 9001 This work was sponsored by Google. 9002 9003 *Steve Henson* 9004 9005 * Support for CRLs partitioned by reason code. Reorganise CRL processing 9006 code and add additional score elements. Validate alternate CRL paths 9007 as part of the CRL checking and indicate a new error "CRL path validation 9008 error" in this case. Applications wanting additional details can use 9009 the verify callback and check the new "parent" field. If this is not 9010 NULL CRL path validation is taking place. Existing applications won't 9011 see this because it requires extended CRL support which is off by 9012 default. 9013 9014 This work was sponsored by Google. 9015 9016 *Steve Henson* 9017 9018 * Support for freshest CRL extension. 9019 9020 This work was sponsored by Google. 9021 9022 *Steve Henson* 9023 9024 * Initial indirect CRL support. Currently only supported in the CRLs 9025 passed directly and not via lookup. Process certificate issuer 9026 CRL entry extension and lookup CRL entries by bother issuer name 9027 and serial number. Check and process CRL issuer entry in IDP extension. 9028 9029 This work was sponsored by Google. 9030 9031 *Steve Henson* 9032 9033 * Add support for distinct certificate and CRL paths. The CRL issuer 9034 certificate is validated separately in this case. Only enabled if 9035 an extended CRL support flag is set: this flag will enable additional 9036 CRL functionality in future. 9037 9038 This work was sponsored by Google. 9039 9040 *Steve Henson* 9041 9042 * Add support for policy mappings extension. 9043 9044 This work was sponsored by Google. 9045 9046 *Steve Henson* 9047 9048 * Fixes to pathlength constraint, self issued certificate handling, 9049 policy processing to align with RFC3280 and PKITS tests. 9050 9051 This work was sponsored by Google. 9052 9053 *Steve Henson* 9054 9055 * Support for name constraints certificate extension. DN, email, DNS 9056 and URI types are currently supported. 9057 9058 This work was sponsored by Google. 9059 9060 *Steve Henson* 9061 9062 * To cater for systems that provide a pointer-based thread ID rather 9063 than numeric, deprecate the current numeric thread ID mechanism and 9064 replace it with a structure and associated callback type. This 9065 mechanism allows a numeric "hash" to be extracted from a thread ID in 9066 either case, and on platforms where pointers are larger than 'long', 9067 mixing is done to help ensure the numeric 'hash' is usable even if it 9068 can't be guaranteed unique. The default mechanism is to use "&errno" 9069 as a pointer-based thread ID to distinguish between threads. 9070 9071 Applications that want to provide their own thread IDs should now use 9072 CRYPTO_THREADID_set_callback() to register a callback that will call 9073 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 9074 9075 Note that ERR_remove_state() is now deprecated, because it is tied 9076 to the assumption that thread IDs are numeric. ERR_remove_state(0) 9077 to free the current thread's error state should be replaced by 9078 ERR_remove_thread_state(NULL). 9079 9080 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 9081 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 9082 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 9083 application was previously providing a numeric thread callback that 9084 was inappropriate for distinguishing threads, then uniqueness might 9085 have been obtained with &errno that happened immediately in the 9086 intermediate development versions of OpenSSL; this is no longer the 9087 case, the numeric thread callback will now override the automatic use 9088 of &errno.) 9089 9090 *Geoff Thorpe, with help from Bodo Moeller* 9091 9092 * Initial support for different CRL issuing certificates. This covers a 9093 simple case where the self issued certificates in the chain exist and 9094 the real CRL issuer is higher in the existing chain. 9095 9096 This work was sponsored by Google. 9097 9098 *Steve Henson* 9099 9100 * Removed effectively defunct crypto/store from the build. 9101 9102 *Ben Laurie* 9103 9104 * Revamp of STACK to provide stronger type-checking. Still to come: 9105 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 9106 ASN1_STRING, CONF_VALUE. 9107 9108 *Ben Laurie* 9109 9110 * Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 9111 RAM on SSL connections. This option can save about 34k per idle SSL. 9112 9113 *Nick Mathewson* 9114 9115 * Revamp of LHASH to provide stronger type-checking. Still to come: 9116 STACK, TXT_DB, bsearch, qsort. 9117 9118 *Ben Laurie* 9119 9120 * Initial support for Cryptographic Message Syntax (aka CMS) based 9121 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 9122 support for data, signedData, compressedData, digestedData and 9123 encryptedData, envelopedData types included. Scripts to check against 9124 RFC4134 examples draft and interop and consistency checks of many 9125 content types and variants. 9126 9127 *Steve Henson* 9128 9129 * Add options to enc utility to support use of zlib compression BIO. 9130 9131 *Steve Henson* 9132 9133 * Extend mk1mf to support importing of options and assembly language 9134 files from Configure script, currently only included in VC-WIN32. 9135 The assembly language rules can now optionally generate the source 9136 files from the associated perl scripts. 9137 9138 *Steve Henson* 9139 9140 * Implement remaining functionality needed to support GOST ciphersuites. 9141 Interop testing has been performed using CryptoPro implementations. 9142 9143 *Victor B. Wagner <vitus@cryptocom.ru>* 9144 9145 * s390x assembler pack. 9146 9147 *Andy Polyakov* 9148 9149 * ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 9150 "family." 9151 9152 *Andy Polyakov* 9153 9154 * Implement Opaque PRF Input TLS extension as specified in 9155 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 9156 official specification yet and no extension type assignment by 9157 IANA exists, this extension (for now) will have to be explicitly 9158 enabled when building OpenSSL by providing the extension number 9159 to use. For example, specify an option 9160 9161 -DTLSEXT_TYPE_opaque_prf_input=0x9527 9162 9163 to the "config" or "Configure" script to enable the extension, 9164 assuming extension number 0x9527 (which is a completely arbitrary 9165 and unofficial assignment based on the MD5 hash of the Internet 9166 Draft). Note that by doing so, you potentially lose 9167 interoperability with other TLS implementations since these might 9168 be using the same extension number for other purposes. 9169 9170 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 9171 opaque PRF input value to use in the handshake. This will create 9172 an internal copy of the length-'len' string at 'src', and will 9173 return non-zero for success. 9174 9175 To get more control and flexibility, provide a callback function 9176 by using 9177 9178 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 9179 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 9180 9181 where 9182 9183 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 9184 void *arg; 9185 9186 Callback function 'cb' will be called in handshakes, and is 9187 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 9188 Argument 'arg' is for application purposes (the value as given to 9189 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 9190 be provided to the callback function). The callback function 9191 has to return non-zero to report success: usually 1 to use opaque 9192 PRF input just if possible, or 2 to enforce use of the opaque PRF 9193 input. In the latter case, the library will abort the handshake 9194 if opaque PRF input is not successfully negotiated. 9195 9196 Arguments 'peerinput' and 'len' given to the callback function 9197 will always be NULL and 0 in the case of a client. A server will 9198 see the client's opaque PRF input through these variables if 9199 available (NULL and 0 otherwise). Note that if the server 9200 provides an opaque PRF input, the length must be the same as the 9201 length of the client's opaque PRF input. 9202 9203 Note that the callback function will only be called when creating 9204 a new session (session resumption can resume whatever was 9205 previously negotiated), and will not be called in SSL 2.0 9206 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 9207 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 9208 for applications that need to enforce opaque PRF input. 9209 9210 *Bodo Moeller* 9211 9212 * Update ssl code to support digests other than SHA1+MD5 for handshake 9213 MAC. 9214 9215 *Victor B. Wagner <vitus@cryptocom.ru>* 9216 9217 * Add RFC4507 support to OpenSSL. This includes the corrections in 9218 RFC4507bis. The encrypted ticket format is an encrypted encoded 9219 SSL_SESSION structure, that way new session features are automatically 9220 supported. 9221 9222 If a client application caches session in an SSL_SESSION structure 9223 support is transparent because tickets are now stored in the encoded 9224 SSL_SESSION. 9225 9226 The SSL_CTX structure automatically generates keys for ticket 9227 protection in servers so again support should be possible 9228 with no application modification. 9229 9230 If a client or server wishes to disable RFC4507 support then the option 9231 SSL_OP_NO_TICKET can be set. 9232 9233 Add a TLS extension debugging callback to allow the contents of any client 9234 or server extensions to be examined. 9235 9236 This work was sponsored by Google. 9237 9238 *Steve Henson* 9239 9240 * Final changes to avoid use of pointer pointer casts in OpenSSL. 9241 OpenSSL should now compile cleanly on gcc 4.2 9242 9243 *Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson* 9244 9245 * Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 9246 support including streaming MAC support: this is required for GOST 9247 ciphersuite support. 9248 9249 *Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson* 9250 9251 * Add option -stream to use PKCS#7 streaming in smime utility. New 9252 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 9253 to output in BER and PEM format. 9254 9255 *Steve Henson* 9256 9257 * Experimental support for use of HMAC via EVP_PKEY interface. This 9258 allows HMAC to be handled via the `EVP_DigestSign*()` interface. The 9259 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 9260 ENGINE support for HMAC keys which are unextractable. New -mac and 9261 -macopt options to dgst utility. 9262 9263 *Steve Henson* 9264 9265 * New option -sigopt to dgst utility. Update dgst to use 9266 `EVP_Digest{Sign,Verify}*`. These two changes make it possible to use 9267 alternative signing parameters such as X9.31 or PSS in the dgst 9268 utility. 9269 9270 *Steve Henson* 9271 9272 * Change ssl_cipher_apply_rule(), the internal function that does 9273 the work each time a ciphersuite string requests enabling 9274 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 9275 removing ("!foo+bar") a class of ciphersuites: Now it maintains 9276 the order of disabled ciphersuites such that those ciphersuites 9277 that most recently went from enabled to disabled not only stay 9278 in order with respect to each other, but also have higher priority 9279 than other disabled ciphersuites the next time ciphersuites are 9280 enabled again. 9281 9282 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 9283 the same ciphersuites as with "HIGH" alone, but in a specific 9284 order where the PSK ciphersuites come first (since they are the 9285 most recently disabled ciphersuites when "HIGH" is parsed). 9286 9287 Also, change ssl_create_cipher_list() (using this new 9288 functionality) such that between otherwise identical 9289 ciphersuites, ephemeral ECDH is preferred over ephemeral DH in 9290 the default order. 9291 9292 *Bodo Moeller* 9293 9294 * Change ssl_create_cipher_list() so that it automatically 9295 arranges the ciphersuites in reasonable order before starting 9296 to process the rule string. Thus, the definition for "DEFAULT" 9297 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 9298 remains equivalent to `"AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH"`. 9299 This makes it much easier to arrive at a reasonable default order 9300 in applications for which anonymous ciphers are OK (meaning 9301 that you can't actually use DEFAULT). 9302 9303 *Bodo Moeller; suggested by Victor Duchovni* 9304 9305 * Split the SSL/TLS algorithm mask (as used for ciphersuite string 9306 processing) into multiple integers instead of setting 9307 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 9308 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 9309 (These masks as well as the individual bit definitions are hidden 9310 away into the non-exported interface ssl/ssl_locl.h, so this 9311 change to the definition of the SSL_CIPHER structure shouldn't 9312 affect applications.) This give us more bits for each of these 9313 categories, so there is no longer a need to coagulate AES128 and 9314 AES256 into a single algorithm bit, and to coagulate Camellia128 9315 and Camellia256 into a single algorithm bit, which has led to all 9316 kinds of kludges. 9317 9318 Thus, among other things, the kludge introduced in 0.9.7m and 9319 0.9.8e for masking out AES256 independently of AES128 or masking 9320 out Camellia256 independently of AES256 is not needed here in 0.9.9. 9321 9322 With the change, we also introduce new ciphersuite aliases that 9323 so far were missing: "AES128", "AES256", "CAMELLIA128", and 9324 "CAMELLIA256". 9325 9326 *Bodo Moeller* 9327 9328 * Add support for dsa-with-SHA224 and dsa-with-SHA256. 9329 Use the leftmost N bytes of the signature input if the input is 9330 larger than the prime q (with N being the size in bytes of q). 9331 9332 *Nils Larsch* 9333 9334 * Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 9335 it yet and it is largely untested. 9336 9337 *Steve Henson* 9338 9339 * Add support for the ecdsa-with-SHA224/256/384/512 signature types. 9340 9341 *Nils Larsch* 9342 9343 * Initial incomplete changes to avoid need for function casts in OpenSSL 9344 some compilers (gcc 4.2 and later) reject their use. Safestack is 9345 reimplemented. Update ASN1 to avoid use of legacy functions. 9346 9347 *Steve Henson* 9348 9349 * Win32/64 targets are linked with Winsock2. 9350 9351 *Andy Polyakov* 9352 9353 * Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 9354 to external functions. This can be used to increase CRL handling 9355 efficiency especially when CRLs are very large by (for example) storing 9356 the CRL revoked certificates in a database. 9357 9358 *Steve Henson* 9359 9360 * Overhaul of by_dir code. Add support for dynamic loading of CRLs so 9361 new CRLs added to a directory can be used. New command line option 9362 -verify_return_error to s_client and s_server. This causes real errors 9363 to be returned by the verify callback instead of carrying on no matter 9364 what. This reflects the way a "real world" verify callback would behave. 9365 9366 *Steve Henson* 9367 9368 * GOST engine, supporting several GOST algorithms and public key formats. 9369 Kindly donated by Cryptocom. 9370 9371 *Cryptocom* 9372 9373 * Partial support for Issuing Distribution Point CRL extension. CRLs 9374 partitioned by DP are handled but no indirect CRL or reason partitioning 9375 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 9376 selected via a scoring technique which handles IDP and AKID in CRLs. 9377 9378 *Steve Henson* 9379 9380 * New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 9381 will ultimately be used for all verify operations: this will remove the 9382 X509_STORE dependency on certificate verification and allow alternative 9383 lookup methods. X509_STORE based implementations of these two callbacks. 9384 9385 *Steve Henson* 9386 9387 * Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 9388 Modify get_crl() to find a valid (unexpired) CRL if possible. 9389 9390 *Steve Henson* 9391 9392 * New function X509_CRL_match() to check if two CRLs are identical. Normally 9393 this would be called X509_CRL_cmp() but that name is already used by 9394 a function that just compares CRL issuer names. Cache several CRL 9395 extensions in X509_CRL structure and cache CRLDP in X509. 9396 9397 *Steve Henson* 9398 9399 * Store a "canonical" representation of X509_NAME structure (ASN1 Name) 9400 this maps equivalent X509_NAME structures into a consistent structure. 9401 Name comparison can then be performed rapidly using memcmp(). 9402 9403 *Steve Henson* 9404 9405 * Non-blocking OCSP request processing. Add -timeout option to ocsp 9406 utility. 9407 9408 *Steve Henson* 9409 9410 * Allow digests to supply their own micalg string for S/MIME type using 9411 the ctrl EVP_MD_CTRL_MICALG. 9412 9413 *Steve Henson* 9414 9415 * During PKCS7 signing pass the PKCS7 SignerInfo structure to the 9416 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 9417 ctrl. It can then customise the structure before and/or after signing 9418 if necessary. 9419 9420 *Steve Henson* 9421 9422 * New function OBJ_add_sigid() to allow application defined signature OIDs 9423 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 9424 to free up any added signature OIDs. 9425 9426 *Steve Henson* 9427 9428 * New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 9429 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 9430 digest and cipher tables. New options added to openssl utility: 9431 list-message-digest-algorithms and list-cipher-algorithms. 9432 9433 *Steve Henson* 9434 9435 * Change the array representation of binary polynomials: the list 9436 of degrees of non-zero coefficients is now terminated with -1. 9437 Previously it was terminated with 0, which was also part of the 9438 value; thus, the array representation was not applicable to 9439 polynomials where t^0 has coefficient zero. This change makes 9440 the array representation useful in a more general context. 9441 9442 *Douglas Stebila* 9443 9444 * Various modifications and fixes to SSL/TLS cipher string 9445 handling. For ECC, the code now distinguishes between fixed ECDH 9446 with RSA certificates on the one hand and with ECDSA certificates 9447 on the other hand, since these are separate ciphersuites. The 9448 unused code for Fortezza ciphersuites has been removed. 9449 9450 For consistency with EDH, ephemeral ECDH is now called "EECDH" 9451 (not "ECDHE"). For consistency with the code for DH 9452 certificates, use of ECDH certificates is now considered ECDH 9453 authentication, not RSA or ECDSA authentication (the latter is 9454 merely the CA's signing algorithm and not actively used in the 9455 protocol). 9456 9457 The temporary ciphersuite alias "ECCdraft" is no longer 9458 available, and ECC ciphersuites are no longer excluded from "ALL" 9459 and "DEFAULT". The following aliases now exist for RFC 4492 9460 ciphersuites, most of these by analogy with the DH case: 9461 9462 kECDHr - ECDH cert, signed with RSA 9463 kECDHe - ECDH cert, signed with ECDSA 9464 kECDH - ECDH cert (signed with either RSA or ECDSA) 9465 kEECDH - ephemeral ECDH 9466 ECDH - ECDH cert or ephemeral ECDH 9467 9468 aECDH - ECDH cert 9469 aECDSA - ECDSA cert 9470 ECDSA - ECDSA cert 9471 9472 AECDH - anonymous ECDH 9473 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 9474 9475 *Bodo Moeller* 9476 9477 * Add additional S/MIME capabilities for AES and GOST ciphers if supported. 9478 Use correct micalg parameters depending on digest(s) in signed message. 9479 9480 *Steve Henson* 9481 9482 * Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 9483 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 9484 9485 *Steve Henson* 9486 9487 * Initial engine support for EVP_PKEY_METHOD. New functions to permit 9488 an engine to register a method. Add ENGINE lookups for methods and 9489 functional reference processing. 9490 9491 *Steve Henson* 9492 9493 * New functions `EVP_Digest{Sign,Verify)*`. These are enhanced versions of 9494 `EVP_{Sign,Verify}*` which allow an application to customise the signature 9495 process. 9496 9497 *Steve Henson* 9498 9499 * New -resign option to smime utility. This adds one or more signers 9500 to an existing PKCS#7 signedData structure. Also -md option to use an 9501 alternative message digest algorithm for signing. 9502 9503 *Steve Henson* 9504 9505 * Tidy up PKCS#7 routines and add new functions to make it easier to 9506 create PKCS7 structures containing multiple signers. Update smime 9507 application to support multiple signers. 9508 9509 *Steve Henson* 9510 9511 * New -macalg option to pkcs12 utility to allow setting of an alternative 9512 digest MAC. 9513 9514 *Steve Henson* 9515 9516 * Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 9517 Reorganize PBE internals to lookup from a static table using NIDs, 9518 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 9519 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 9520 PRF which will be automatically used with PBES2. 9521 9522 *Steve Henson* 9523 9524 * Replace the algorithm specific calls to generate keys in "req" with the 9525 new API. 9526 9527 *Steve Henson* 9528 9529 * Update PKCS#7 enveloped data routines to use new API. This is now 9530 supported by any public key method supporting the encrypt operation. A 9531 ctrl is added to allow the public key algorithm to examine or modify 9532 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 9533 a no op. 9534 9535 *Steve Henson* 9536 9537 * Add a ctrl to asn1 method to allow a public key algorithm to express 9538 a default digest type to use. In most cases this will be SHA1 but some 9539 algorithms (such as GOST) need to specify an alternative digest. The 9540 return value indicates how strong the preference is 1 means optional and 9541 2 is mandatory (that is it is the only supported type). Modify 9542 ASN1_item_sign() to accept a NULL digest argument to indicate it should 9543 use the default md. Update openssl utilities to use the default digest 9544 type for signing if it is not explicitly indicated. 9545 9546 *Steve Henson* 9547 9548 * Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 9549 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 9550 signing method from the key type. This effectively removes the link 9551 between digests and public key types. 9552 9553 *Steve Henson* 9554 9555 * Add an OID cross reference table and utility functions. Its purpose is to 9556 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 9557 rsaEncryption. This will allow some of the algorithm specific hackery 9558 needed to use the correct OID to be removed. 9559 9560 *Steve Henson* 9561 9562 * Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 9563 structures for PKCS7_sign(). They are now set up by the relevant public 9564 key ASN1 method. 9565 9566 *Steve Henson* 9567 9568 * Add provisional EC pkey method with support for ECDSA and ECDH. 9569 9570 *Steve Henson* 9571 9572 * Add support for key derivation (agreement) in the API, DH method and 9573 pkeyutl. 9574 9575 *Steve Henson* 9576 9577 * Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 9578 public and private key formats. As a side effect these add additional 9579 command line functionality not previously available: DSA signatures can be 9580 generated and verified using pkeyutl and DH key support and generation in 9581 pkey, genpkey. 9582 9583 *Steve Henson* 9584 9585 * BeOS support. 9586 9587 *Oliver Tappe <zooey@hirschkaefer.de>* 9588 9589 * New make target "install_html_docs" installs HTML renditions of the 9590 manual pages. 9591 9592 *Oliver Tappe <zooey@hirschkaefer.de>* 9593 9594 * New utility "genpkey" this is analogous to "genrsa" etc except it can 9595 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 9596 support key and parameter generation and add initial key generation 9597 functionality for RSA. 9598 9599 *Steve Henson* 9600 9601 * Add functions for main EVP_PKEY_method operations. The undocumented 9602 functions `EVP_PKEY_{encrypt,decrypt}` have been renamed to 9603 `EVP_PKEY_{encrypt,decrypt}_old`. 9604 9605 *Steve Henson* 9606 9607 * Initial definitions for EVP_PKEY_METHOD. This will be a high level public 9608 key API, doesn't do much yet. 9609 9610 *Steve Henson* 9611 9612 * New function EVP_PKEY_asn1_get0_info() to retrieve information about 9613 public key algorithms. New option to openssl utility: 9614 "list-public-key-algorithms" to print out info. 9615 9616 *Steve Henson* 9617 9618 * Implement the Supported Elliptic Curves Extension for 9619 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 9620 9621 *Douglas Stebila* 9622 9623 * Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 9624 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 9625 9626 *Steve Henson* 9627 9628 * New utilities pkey and pkeyparam. These are similar to algorithm specific 9629 utilities such as rsa, dsa, dsaparam etc except they process any key 9630 type. 9631 9632 *Steve Henson* 9633 9634 * Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 9635 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 9636 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 9637 structure. 9638 9639 *Steve Henson* 9640 9641 * Initial support for pluggable public key ASN1. 9642 De-spaghettify the public key ASN1 handling. Move public and private 9643 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 9644 algorithm specific handling to a single module within the relevant 9645 algorithm directory. Add functions to allow (near) opaque processing 9646 of public and private key structures. 9647 9648 *Steve Henson* 9649 9650 * Implement the Supported Point Formats Extension for 9651 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 9652 9653 *Douglas Stebila* 9654 9655 * Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 9656 for the psk identity [hint] and the psk callback functions to the 9657 SSL_SESSION, SSL and SSL_CTX structure. 9658 9659 New ciphersuites: 9660 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 9661 PSK-AES256-CBC-SHA 9662 9663 New functions: 9664 SSL_CTX_use_psk_identity_hint 9665 SSL_get_psk_identity_hint 9666 SSL_get_psk_identity 9667 SSL_use_psk_identity_hint 9668 9669 *Mika Kousa and Pasi Eronen of Nokia Corporation* 9670 9671 * Add RFC 3161 compliant time stamp request creation, response generation 9672 and response verification functionality. 9673 9674 *Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project* 9675 9676 * Add initial support for TLS extensions, specifically for the server_name 9677 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 9678 have new members for a host name. The SSL data structure has an 9679 additional member `SSL_CTX *initial_ctx` so that new sessions can be 9680 stored in that context to allow for session resumption, even after the 9681 SSL has been switched to a new SSL_CTX in reaction to a client's 9682 server_name extension. 9683 9684 New functions (subject to change): 9685 9686 SSL_get_servername() 9687 SSL_get_servername_type() 9688 SSL_set_SSL_CTX() 9689 9690 New CTRL codes and macros (subject to change): 9691 9692 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 9693 - SSL_CTX_set_tlsext_servername_callback() 9694 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 9695 - SSL_CTX_set_tlsext_servername_arg() 9696 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 9697 9698 openssl s_client has a new '-servername ...' option. 9699 9700 openssl s_server has new options '-servername_host ...', '-cert2 ...', 9701 '-key2 ...', '-servername_fatal' (subject to change). This allows 9702 testing the HostName extension for a specific single host name ('-cert' 9703 and '-key' remain fallbacks for handshakes without HostName 9704 negotiation). If the unrecognized_name alert has to be sent, this by 9705 default is a warning; it becomes fatal with the '-servername_fatal' 9706 option. 9707 9708 *Peter Sylvester, Remy Allais, Christophe Renou* 9709 9710 * Whirlpool hash implementation is added. 9711 9712 *Andy Polyakov* 9713 9714 * BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 9715 bn(64,32). Because of instruction set limitations it doesn't have 9716 any negative impact on performance. This was done mostly in order 9717 to make it possible to share assembler modules, such as bn_mul_mont 9718 implementations, between 32- and 64-bit builds without hassle. 9719 9720 *Andy Polyakov* 9721 9722 * Move code previously exiled into file crypto/ec/ec2_smpt.c 9723 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 9724 macro. 9725 9726 *Bodo Moeller* 9727 9728 * New candidate for BIGNUM assembler implementation, bn_mul_mont, 9729 dedicated Montgomery multiplication procedure, is introduced. 9730 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 9731 "64-bit" performance on certain 32-bit targets. 9732 9733 *Andy Polyakov* 9734 9735 * New option SSL_OP_NO_COMP to disable use of compression selectively 9736 in SSL structures. New SSL ctrl to set maximum send fragment size. 9737 Save memory by setting the I/O buffer sizes dynamically instead of 9738 using the maximum available value. 9739 9740 *Steve Henson* 9741 9742 * New option -V for 'openssl ciphers'. This prints the ciphersuite code 9743 in addition to the text details. 9744 9745 *Bodo Moeller* 9746 9747 * Very, very preliminary EXPERIMENTAL support for printing of general 9748 ASN1 structures. This currently produces rather ugly output and doesn't 9749 handle several customised structures at all. 9750 9751 *Steve Henson* 9752 9753 * Integrated support for PVK file format and some related formats such 9754 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 9755 these in the 'rsa' and 'dsa' utilities. 9756 9757 *Steve Henson* 9758 9759 * Support for PKCS#1 RSAPublicKey format on rsa utility command line. 9760 9761 *Steve Henson* 9762 9763 * Remove the ancient ASN1_METHOD code. This was only ever used in one 9764 place for the (very old) "NETSCAPE" format certificates which are now 9765 handled using new ASN1 code equivalents. 9766 9767 *Steve Henson* 9768 9769 * Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 9770 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 9771 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 9772 9773 *Nils Larsch* 9774 9775 * Modify CRL distribution points extension code to print out previously 9776 unsupported fields. Enhance extension setting code to allow setting of 9777 all fields. 9778 9779 *Steve Henson* 9780 9781 * Add print and set support for Issuing Distribution Point CRL extension. 9782 9783 *Steve Henson* 9784 9785 * Change 'Configure' script to enable Camellia by default. 9786 9787 *NTT* 9788 9789OpenSSL 0.9.x 9790------------- 9791 9792### Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 9793 9794 * When rejecting SSL/TLS records due to an incorrect version number, never 9795 update s->server with a new major version number. As of 9796 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 9797 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 9798 the previous behavior could result in a read attempt at NULL when 9799 receiving specific incorrect SSL/TLS records once record payload 9800 protection is active. ([CVE-2010-0740]) 9801 9802 *Bodo Moeller, Adam Langley <agl@chromium.org>* 9803 9804 * Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 9805 could be crashed if the relevant tables were not present (e.g. chrooted). 9806 9807 *Tomas Hoger <thoger@redhat.com>* 9808 9809### Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 9810 9811 * Always check bn_wexpand() return values for failure. ([CVE-2009-3245]) 9812 9813 *Martin Olsson, Neel Mehta* 9814 9815 * Fix X509_STORE locking: Every 'objs' access requires a lock (to 9816 accommodate for stack sorting, always a write lock!). 9817 9818 *Bodo Moeller* 9819 9820 * On some versions of WIN32 Heap32Next is very slow. This can cause 9821 excessive delays in the RAND_poll(): over a minute. As a workaround 9822 include a time check in the inner Heap32Next loop too. 9823 9824 *Steve Henson* 9825 9826 * The code that handled flushing of data in SSL/TLS originally used the 9827 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 9828 the problem outlined in PR#1949. The fix suggested there however can 9829 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 9830 of Apache). So instead simplify the code to flush unconditionally. 9831 This should be fine since flushing with no data to flush is a no op. 9832 9833 *Steve Henson* 9834 9835 * Handle TLS versions 2.0 and later properly and correctly use the 9836 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 9837 off ancient servers have a habit of sticking around for a while... 9838 9839 *Steve Henson* 9840 9841 * Modify compression code so it frees up structures without using the 9842 ex_data callbacks. This works around a problem where some applications 9843 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 9844 restarting) then use compression (e.g. SSL with compression) later. 9845 This results in significant per-connection memory leaks and 9846 has caused some security issues including CVE-2008-1678 and 9847 CVE-2009-4355. 9848 9849 *Steve Henson* 9850 9851 * Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 9852 change when encrypting or decrypting. 9853 9854 *Bodo Moeller* 9855 9856 * Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 9857 connect and renegotiate with servers which do not support RI. 9858 Until RI is more widely deployed this option is enabled by default. 9859 9860 *Steve Henson* 9861 9862 * Add "missing" ssl ctrls to clear options and mode. 9863 9864 *Steve Henson* 9865 9866 * If client attempts to renegotiate and doesn't support RI respond with 9867 a no_renegotiation alert as required by RFC5746. Some renegotiating 9868 TLS clients will continue a connection gracefully when they receive 9869 the alert. Unfortunately OpenSSL mishandled this alert and would hang 9870 waiting for a server hello which it will never receive. Now we treat a 9871 received no_renegotiation alert as a fatal error. This is because 9872 applications requesting a renegotiation might well expect it to succeed 9873 and would have no code in place to handle the server denying it so the 9874 only safe thing to do is to terminate the connection. 9875 9876 *Steve Henson* 9877 9878 * Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 9879 peer supports secure renegotiation and 0 otherwise. Print out peer 9880 renegotiation support in s_client/s_server. 9881 9882 *Steve Henson* 9883 9884 * Replace the highly broken and deprecated SPKAC certification method with 9885 the updated NID creation version. This should correctly handle UTF8. 9886 9887 *Steve Henson* 9888 9889 * Implement RFC5746. Re-enable renegotiation but require the extension 9890 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 9891 turns out to be a bad idea. It has been replaced by 9892 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 9893 SSL_CTX_set_options(). This is really not recommended unless you 9894 know what you are doing. 9895 9896 *Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson* 9897 9898 * Fixes to stateless session resumption handling. Use initial_ctx when 9899 issuing and attempting to decrypt tickets in case it has changed during 9900 servername handling. Use a non-zero length session ID when attempting 9901 stateless session resumption: this makes it possible to determine if 9902 a resumption has occurred immediately after receiving server hello 9903 (several places in OpenSSL subtly assume this) instead of later in 9904 the handshake. 9905 9906 *Steve Henson* 9907 9908 * The functions ENGINE_ctrl(), OPENSSL_isservice(), 9909 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 9910 fixes for a few places where the return code is not checked 9911 correctly. 9912 9913 *Julia Lawall <julia@diku.dk>* 9914 9915 * Add --strict-warnings option to Configure script to include devteam 9916 warnings in other configurations. 9917 9918 *Steve Henson* 9919 9920 * Add support for --libdir option and LIBDIR variable in makefiles. This 9921 makes it possible to install openssl libraries in locations which 9922 have names other than "lib", for example "/usr/lib64" which some 9923 systems need. 9924 9925 *Steve Henson, based on patch from Jeremy Utley* 9926 9927 * Don't allow the use of leading 0x80 in OIDs. This is a violation of 9928 X690 8.9.12 and can produce some misleading textual output of OIDs. 9929 9930 *Steve Henson, reported by Dan Kaminsky* 9931 9932 * Delete MD2 from algorithm tables. This follows the recommendation in 9933 several standards that it is not used in new applications due to 9934 several cryptographic weaknesses. For binary compatibility reasons 9935 the MD2 API is still compiled in by default. 9936 9937 *Steve Henson* 9938 9939 * Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 9940 and restored. 9941 9942 *Steve Henson* 9943 9944 * Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 9945 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 9946 clash. 9947 9948 *Guenter <lists@gknw.net>* 9949 9950 * Fix the server certificate chain building code to use X509_verify_cert(), 9951 it used to have an ad-hoc builder which was unable to cope with anything 9952 other than a simple chain. 9953 9954 *David Woodhouse <dwmw2@infradead.org>, Steve Henson* 9955 9956 * Don't check self signed certificate signatures in X509_verify_cert() 9957 by default (a flag can override this): it just wastes time without 9958 adding any security. As a useful side effect self signed root CAs 9959 with non-FIPS digests are now usable in FIPS mode. 9960 9961 *Steve Henson* 9962 9963 * In dtls1_process_out_of_seq_message() the check if the current message 9964 is already buffered was missing. For every new message was memory 9965 allocated, allowing an attacker to perform an denial of service attack 9966 with sending out of seq handshake messages until there is no memory 9967 left. Additionally every future message was buffered, even if the 9968 sequence number made no sense and would be part of another handshake. 9969 So only messages with sequence numbers less than 10 in advance will be 9970 buffered. ([CVE-2009-1378]) 9971 9972 *Robin Seggelmann, discovered by Daniel Mentz* 9973 9974 * Records are buffered if they arrive with a future epoch to be 9975 processed after finishing the corresponding handshake. There is 9976 currently no limitation to this buffer allowing an attacker to perform 9977 a DOS attack with sending records with future epochs until there is no 9978 memory left. This patch adds the pqueue_size() function to determine 9979 the size of a buffer and limits the record buffer to 100 entries. 9980 ([CVE-2009-1377]) 9981 9982 *Robin Seggelmann, discovered by Daniel Mentz* 9983 9984 * Keep a copy of frag->msg_header.frag_len so it can be used after the 9985 parent structure is freed. ([CVE-2009-1379]) 9986 9987 *Daniel Mentz* 9988 9989 * Handle non-blocking I/O properly in SSL_shutdown() call. 9990 9991 *Darryl Miles <darryl-mailinglists@netbauds.net>* 9992 9993 * Add `2.5.4.*` OIDs 9994 9995 *Ilya O. <vrghost@gmail.com>* 9996 9997### Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 9998 9999 * Disable renegotiation completely - this fixes a severe security 10000 problem ([CVE-2009-3555]) at the cost of breaking all 10001 renegotiation. Renegotiation can be re-enabled by setting 10002 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 10003 run-time. This is really not recommended unless you know what 10004 you're doing. 10005 10006 *Ben Laurie* 10007 10008### Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 10009 10010 * Don't set val to NULL when freeing up structures, it is freed up by 10011 underlying code. If `sizeof(void *) > sizeof(long)` this can result in 10012 zeroing past the valid field. ([CVE-2009-0789]) 10013 10014 *Paolo Ganci <Paolo.Ganci@AdNovum.CH>* 10015 10016 * Fix bug where return value of CMS_SignerInfo_verify_content() was not 10017 checked correctly. This would allow some invalid signed attributes to 10018 appear to verify correctly. ([CVE-2009-0591]) 10019 10020 *Ivan Nestlerode <inestlerode@us.ibm.com>* 10021 10022 * Reject UniversalString and BMPString types with invalid lengths. This 10023 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 10024 a legal length. ([CVE-2009-0590]) 10025 10026 *Steve Henson* 10027 10028 * Set S/MIME signing as the default purpose rather than setting it 10029 unconditionally. This allows applications to override it at the store 10030 level. 10031 10032 *Steve Henson* 10033 10034 * Permit restricted recursion of ASN1 strings. This is needed in practice 10035 to handle some structures. 10036 10037 *Steve Henson* 10038 10039 * Improve efficiency of mem_gets: don't search whole buffer each time 10040 for a '\n' 10041 10042 *Jeremy Shapiro <jnshapir@us.ibm.com>* 10043 10044 * New -hex option for openssl rand. 10045 10046 *Matthieu Herrb* 10047 10048 * Print out UTF8String and NumericString when parsing ASN1. 10049 10050 *Steve Henson* 10051 10052 * Support NumericString type for name components. 10053 10054 *Steve Henson* 10055 10056 * Allow CC in the environment to override the automatically chosen 10057 compiler. Note that nothing is done to ensure flags work with the 10058 chosen compiler. 10059 10060 *Ben Laurie* 10061 10062### Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 10063 10064 * Properly check EVP_VerifyFinal() and similar return values 10065 ([CVE-2008-5077]). 10066 10067 *Ben Laurie, Bodo Moeller, Google Security Team* 10068 10069 * Enable TLS extensions by default. 10070 10071 *Ben Laurie* 10072 10073 * Allow the CHIL engine to be loaded, whether the application is 10074 multithreaded or not. (This does not release the developer from the 10075 obligation to set up the dynamic locking callbacks.) 10076 10077 *Sander Temme <sander@temme.net>* 10078 10079 * Use correct exit code if there is an error in dgst command. 10080 10081 *Steve Henson; problem pointed out by Roland Dirlewanger* 10082 10083 * Tweak Configure so that you need to say "experimental-jpake" to enable 10084 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 10085 10086 *Bodo Moeller* 10087 10088 * Add experimental JPAKE support, including demo authentication in 10089 s_client and s_server. 10090 10091 *Ben Laurie* 10092 10093 * Set the comparison function in v3_addr_canonize(). 10094 10095 *Rob Austein <sra@hactrn.net>* 10096 10097 * Add support for XMPP STARTTLS in s_client. 10098 10099 *Philip Paeps <philip@freebsd.org>* 10100 10101 * Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 10102 to ensure that even with this option, only ciphersuites in the 10103 server's preference list will be accepted. (Note that the option 10104 applies only when resuming a session, so the earlier behavior was 10105 just about the algorithm choice for symmetric cryptography.) 10106 10107 *Bodo Moeller* 10108 10109### Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 10110 10111 * Fix NULL pointer dereference if a DTLS server received 10112 ChangeCipherSpec as first record ([CVE-2009-1386]). 10113 10114 *PR #1679* 10115 10116 * Fix a state transition in s3_srvr.c and d1_srvr.c 10117 (was using SSL3_ST_CW_CLNT_HELLO_B, should be `..._ST_SW_SRVR_...`). 10118 10119 *Nagendra Modadugu* 10120 10121 * The fix in 0.9.8c that supposedly got rid of unsafe 10122 double-checked locking was incomplete for RSA blinding, 10123 addressing just one layer of what turns out to have been 10124 doubly unsafe triple-checked locking. 10125 10126 So now fix this for real by retiring the MONT_HELPER macro 10127 in crypto/rsa/rsa_eay.c. 10128 10129 *Bodo Moeller; problem pointed out by Marius Schilder* 10130 10131 * Various precautionary measures: 10132 10133 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 10134 10135 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 10136 (NB: This would require knowledge of the secret session ticket key 10137 to exploit, in which case you'd be SOL either way.) 10138 10139 - Change bn_nist.c so that it will properly handle input BIGNUMs 10140 outside the expected range. 10141 10142 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 10143 builds. 10144 10145 *Neel Mehta, Bodo Moeller* 10146 10147 * Allow engines to be "soft loaded" - i.e. optionally don't die if 10148 the load fails. Useful for distros. 10149 10150 *Ben Laurie and the FreeBSD team* 10151 10152 * Add support for Local Machine Keyset attribute in PKCS#12 files. 10153 10154 *Steve Henson* 10155 10156 * Fix BN_GF2m_mod_arr() top-bit cleanup code. 10157 10158 *Huang Ying* 10159 10160 * Expand ENGINE to support engine supplied SSL client certificate functions. 10161 10162 This work was sponsored by Logica. 10163 10164 *Steve Henson* 10165 10166 * Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 10167 keystores. Support for SSL/TLS client authentication too. 10168 Not compiled unless enable-capieng specified to Configure. 10169 10170 This work was sponsored by Logica. 10171 10172 *Steve Henson* 10173 10174 * Fix bug in X509_ATTRIBUTE creation: don't set attribute using 10175 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 10176 attribute creation routines such as certificate requests and PKCS#12 10177 files. 10178 10179 *Steve Henson* 10180 10181### Changes between 0.9.8g and 0.9.8h [28 May 2008] 10182 10183 * Fix flaw if 'Server Key exchange message' is omitted from a TLS 10184 handshake which could lead to a client crash as found using the 10185 Codenomicon TLS test suite ([CVE-2008-1672]) 10186 10187 *Steve Henson, Mark Cox* 10188 10189 * Fix double free in TLS server name extensions which could lead to 10190 a remote crash found by Codenomicon TLS test suite ([CVE-2008-0891]) 10191 10192 *Joe Orton* 10193 10194 * Clear error queue in SSL_CTX_use_certificate_chain_file() 10195 10196 Clear the error queue to ensure that error entries left from 10197 older function calls do not interfere with the correct operation. 10198 10199 *Lutz Jaenicke, Erik de Castro Lopo* 10200 10201 * Remove root CA certificates of commercial CAs: 10202 10203 The OpenSSL project does not recommend any specific CA and does not 10204 have any policy with respect to including or excluding any CA. 10205 Therefore it does not make any sense to ship an arbitrary selection 10206 of root CA certificates with the OpenSSL software. 10207 10208 *Lutz Jaenicke* 10209 10210 * RSA OAEP patches to fix two separate invalid memory reads. 10211 The first one involves inputs when 'lzero' is greater than 10212 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 10213 before the beginning of from). The second one involves inputs where 10214 the 'db' section contains nothing but zeroes (there is a one-byte 10215 invalid read after the end of 'db'). 10216 10217 *Ivan Nestlerode <inestlerode@us.ibm.com>* 10218 10219 * Partial backport from 0.9.9-dev: 10220 10221 Introduce bn_mul_mont (dedicated Montgomery multiplication 10222 procedure) as a candidate for BIGNUM assembler implementation. 10223 While 0.9.9-dev uses assembler for various architectures, only 10224 x86_64 is available by default here in the 0.9.8 branch, and 10225 32-bit x86 is available through a compile-time setting. 10226 10227 To try the 32-bit x86 assembler implementation, use Configure 10228 option "enable-montasm" (which exists only for this backport). 10229 10230 As "enable-montasm" for 32-bit x86 disclaims code stability 10231 anyway, in this constellation we activate additional code 10232 backported from 0.9.9-dev for further performance improvements, 10233 namely BN_from_montgomery_word. (To enable this otherwise, 10234 e.g. x86_64, try `-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD`.) 10235 10236 *Andy Polyakov (backport partially by Bodo Moeller)* 10237 10238 * Add TLS session ticket callback. This allows an application to set 10239 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 10240 values. This is useful for key rollover for example where several key 10241 sets may exist with different names. 10242 10243 *Steve Henson* 10244 10245 * Reverse ENGINE-internal logic for caching default ENGINE handles. 10246 This was broken until now in 0.9.8 releases, such that the only way 10247 a registered ENGINE could be used (assuming it initialises 10248 successfully on the host) was to explicitly set it as the default 10249 for the relevant algorithms. This is in contradiction with 0.9.7 10250 behaviour and the documentation. With this fix, when an ENGINE is 10251 registered into a given algorithm's table of implementations, the 10252 'uptodate' flag is reset so that auto-discovery will be used next 10253 time a new context for that algorithm attempts to select an 10254 implementation. 10255 10256 *Ian Lister (tweaked by Geoff Thorpe)* 10257 10258 * Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 10259 implementation in the following ways: 10260 10261 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 10262 hard coded. 10263 10264 Lack of BER streaming support means one pass streaming processing is 10265 only supported if data is detached: setting the streaming flag is 10266 ignored for embedded content. 10267 10268 CMS support is disabled by default and must be explicitly enabled 10269 with the enable-cms configuration option. 10270 10271 *Steve Henson* 10272 10273 * Update the GMP engine glue to do direct copies between BIGNUM and 10274 mpz_t when openssl and GMP use the same limb size. Otherwise the 10275 existing "conversion via a text string export" trick is still used. 10276 10277 *Paul Sheer <paulsheer@gmail.com>* 10278 10279 * Zlib compression BIO. This is a filter BIO which compressed and 10280 uncompresses any data passed through it. 10281 10282 *Steve Henson* 10283 10284 * Add AES_wrap_key() and AES_unwrap_key() functions to implement 10285 RFC3394 compatible AES key wrapping. 10286 10287 *Steve Henson* 10288 10289 * Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 10290 sets string data without copying. X509_ALGOR_set0() and 10291 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 10292 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 10293 from an X509_ATTRIBUTE structure optionally checking it occurs only 10294 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 10295 data. 10296 10297 *Steve Henson* 10298 10299 * Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 10300 to get the expected BN_FLG_CONSTTIME behavior. 10301 10302 *Bodo Moeller (Google)* 10303 10304 * Netware support: 10305 10306 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 10307 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 10308 - added some more tests to do_tests.pl 10309 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 10310 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 10311 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 10312 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 10313 - various changes to netware.pl to enable gcc-cross builds on Win32 10314 platform 10315 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 10316 - various changes to fix missing prototype warnings 10317 - fixed x86nasm.pl to create correct asm files for NASM COFF output 10318 - added AES, WHIRLPOOL and CPUID assembler code to build files 10319 - added missing AES assembler make rules to mk1mf.pl 10320 - fixed order of includes in `apps/ocsp.c` so that `e_os.h` settings apply 10321 10322 *Guenter Knauf <eflash@gmx.net>* 10323 10324 * Implement certificate status request TLS extension defined in RFC3546. 10325 A client can set the appropriate parameters and receive the encoded 10326 OCSP response via a callback. A server can query the supplied parameters 10327 and set the encoded OCSP response in the callback. Add simplified examples 10328 to s_client and s_server. 10329 10330 *Steve Henson* 10331 10332### Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 10333 10334 * Fix various bugs: 10335 + Binary incompatibility of ssl_ctx_st structure 10336 + DTLS interoperation with non-compliant servers 10337 + Don't call get_session_cb() without proposed session 10338 + Fix ia64 assembler code 10339 10340 *Andy Polyakov, Steve Henson* 10341 10342### Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 10343 10344 * DTLS Handshake overhaul. There were longstanding issues with 10345 OpenSSL DTLS implementation, which were making it impossible for 10346 RFC 4347 compliant client to communicate with OpenSSL server. 10347 Unfortunately just fixing these incompatibilities would "cut off" 10348 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 10349 server keeps tolerating non RFC compliant syntax. The opposite is 10350 not true, 0.9.8f client can not communicate with earlier server. 10351 This update even addresses CVE-2007-4995. 10352 10353 *Andy Polyakov* 10354 10355 * Changes to avoid need for function casts in OpenSSL: some compilers 10356 (gcc 4.2 and later) reject their use. 10357 *Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 10358 Steve Henson* 10359 10360 * Add RFC4507 support to OpenSSL. This includes the corrections in 10361 RFC4507bis. The encrypted ticket format is an encrypted encoded 10362 SSL_SESSION structure, that way new session features are automatically 10363 supported. 10364 10365 If a client application caches session in an SSL_SESSION structure 10366 support is transparent because tickets are now stored in the encoded 10367 SSL_SESSION. 10368 10369 The SSL_CTX structure automatically generates keys for ticket 10370 protection in servers so again support should be possible 10371 with no application modification. 10372 10373 If a client or server wishes to disable RFC4507 support then the option 10374 SSL_OP_NO_TICKET can be set. 10375 10376 Add a TLS extension debugging callback to allow the contents of any client 10377 or server extensions to be examined. 10378 10379 This work was sponsored by Google. 10380 10381 *Steve Henson* 10382 10383 * Add initial support for TLS extensions, specifically for the server_name 10384 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 10385 have new members for a host name. The SSL data structure has an 10386 additional member `SSL_CTX *initial_ctx` so that new sessions can be 10387 stored in that context to allow for session resumption, even after the 10388 SSL has been switched to a new SSL_CTX in reaction to a client's 10389 server_name extension. 10390 10391 New functions (subject to change): 10392 10393 SSL_get_servername() 10394 SSL_get_servername_type() 10395 SSL_set_SSL_CTX() 10396 10397 New CTRL codes and macros (subject to change): 10398 10399 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 10400 - SSL_CTX_set_tlsext_servername_callback() 10401 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 10402 - SSL_CTX_set_tlsext_servername_arg() 10403 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 10404 10405 openssl s_client has a new '-servername ...' option. 10406 10407 openssl s_server has new options '-servername_host ...', '-cert2 ...', 10408 '-key2 ...', '-servername_fatal' (subject to change). This allows 10409 testing the HostName extension for a specific single host name ('-cert' 10410 and '-key' remain fallbacks for handshakes without HostName 10411 negotiation). If the unrecognized_name alert has to be sent, this by 10412 default is a warning; it becomes fatal with the '-servername_fatal' 10413 option. 10414 10415 *Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson* 10416 10417 * Add AES and SSE2 assembly language support to VC++ build. 10418 10419 *Steve Henson* 10420 10421 * Mitigate attack on final subtraction in Montgomery reduction. 10422 10423 *Andy Polyakov* 10424 10425 * Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 10426 (which previously caused an internal error). 10427 10428 *Bodo Moeller* 10429 10430 * Squeeze another 10% out of IGE mode when in != out. 10431 10432 *Ben Laurie* 10433 10434 * AES IGE mode speedup. 10435 10436 *Dean Gaudet (Google)* 10437 10438 * Add the Korean symmetric 128-bit cipher SEED (see 10439 <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>) and 10440 add SEED ciphersuites from RFC 4162: 10441 10442 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 10443 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 10444 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 10445 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 10446 10447 To minimize changes between patchlevels in the OpenSSL 0.9.8 10448 series, SEED remains excluded from compilation unless OpenSSL 10449 is configured with 'enable-seed'. 10450 10451 *KISA, Bodo Moeller* 10452 10453 * Mitigate branch prediction attacks, which can be practical if a 10454 single processor is shared, allowing a spy process to extract 10455 information. For detailed background information, see 10456 <http://eprint.iacr.org/2007/039> (O. Aciicmez, S. Gueron, 10457 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 10458 and Necessary Software Countermeasures"). The core of the change 10459 are new versions BN_div_no_branch() and 10460 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 10461 respectively, which are slower, but avoid the security-relevant 10462 conditional branches. These are automatically called by BN_div() 10463 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 10464 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 10465 remove a conditional branch. 10466 10467 BN_FLG_CONSTTIME is the new name for the previous 10468 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 10469 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 10470 in the exponent causes BN_mod_exp_mont() to use the alternative 10471 implementation in BN_mod_exp_mont_consttime().) The old name 10472 remains as a deprecated alias. 10473 10474 Similarly, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 10475 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 10476 constant-time implementations for more than just exponentiation. 10477 Here too the old name is kept as a deprecated alias. 10478 10479 BN_BLINDING_new() will now use BN_dup() for the modulus so that 10480 the BN_BLINDING structure gets an independent copy of the 10481 modulus. This means that the previous `BIGNUM *m` argument to 10482 BN_BLINDING_new() and to BN_BLINDING_create_param() now 10483 essentially becomes `const BIGNUM *m`, although we can't actually 10484 change this in the header file before 0.9.9. It allows 10485 RSA_setup_blinding() to use BN_with_flags() on the modulus to 10486 enable BN_FLG_CONSTTIME. 10487 10488 *Matthew D Wood (Intel Corp)* 10489 10490 * In the SSL/TLS server implementation, be strict about session ID 10491 context matching (which matters if an application uses a single 10492 external cache for different purposes). Previously, 10493 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 10494 set. This did ensure strict client verification, but meant that, 10495 with applications using a single external cache for quite 10496 different requirements, clients could circumvent ciphersuite 10497 restrictions for a given session ID context by starting a session 10498 in a different context. 10499 10500 *Bodo Moeller* 10501 10502 * Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 10503 a ciphersuite string such as "DEFAULT:RSA" cannot enable 10504 authentication-only ciphersuites. 10505 10506 *Bodo Moeller* 10507 10508 * Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 10509 not complete and could lead to a possible single byte overflow 10510 ([CVE-2007-5135]) [Ben Laurie] 10511 10512### Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 10513 10514 * Since AES128 and AES256 (and similarly Camellia128 and 10515 Camellia256) share a single mask bit in the logic of 10516 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 10517 kludge to work properly if AES128 is available and AES256 isn't 10518 (or if Camellia128 is available and Camellia256 isn't). 10519 10520 *Victor Duchovni* 10521 10522 * Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 10523 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 10524 When a point or a seed is encoded in a BIT STRING, we need to 10525 prevent the removal of trailing zero bits to get the proper DER 10526 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 10527 of a NamedBitList, for which trailing 0 bits need to be removed.) 10528 10529 *Bodo Moeller* 10530 10531 * Have SSL/TLS server implementation tolerate "mismatched" record 10532 protocol version while receiving ClientHello even if the 10533 ClientHello is fragmented. (The server can't insist on the 10534 particular protocol version it has chosen before the ServerHello 10535 message has informed the client about his choice.) 10536 10537 *Bodo Moeller* 10538 10539 * Add RFC 3779 support. 10540 10541 *Rob Austein for ARIN, Ben Laurie* 10542 10543 * Load error codes if they are not already present instead of using a 10544 static variable. This allows them to be cleanly unloaded and reloaded. 10545 Improve header file function name parsing. 10546 10547 *Steve Henson* 10548 10549 * extend SMTP and IMAP protocol emulation in s_client to use EHLO 10550 or CAPABILITY handshake as required by RFCs. 10551 10552 *Goetz Babin-Ebell* 10553 10554### Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 10555 10556 * Introduce limits to prevent malicious keys being able to 10557 cause a denial of service. ([CVE-2006-2940]) 10558 10559 *Steve Henson, Bodo Moeller* 10560 10561 * Fix ASN.1 parsing of certain invalid structures that can result 10562 in a denial of service. ([CVE-2006-2937]) [Steve Henson] 10563 10564 * Fix buffer overflow in SSL_get_shared_ciphers() function. 10565 ([CVE-2006-3738]) [Tavis Ormandy and Will Drewry, Google Security Team] 10566 10567 * Fix SSL client code which could crash if connecting to a 10568 malicious SSLv2 server. ([CVE-2006-4343]) 10569 10570 *Tavis Ormandy and Will Drewry, Google Security Team* 10571 10572 * Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 10573 match only those. Before that, "AES256-SHA" would be interpreted 10574 as a pattern and match "AES128-SHA" too (since AES128-SHA got 10575 the same strength classification in 0.9.7h) as we currently only 10576 have a single AES bit in the ciphersuite description bitmap. 10577 That change, however, also applied to ciphersuite strings such as 10578 "RC4-MD5" that intentionally matched multiple ciphersuites -- 10579 namely, SSL 2.0 ciphersuites in addition to the more common ones 10580 from SSL 3.0/TLS 1.0. 10581 10582 So we change the selection algorithm again: Naming an explicit 10583 ciphersuite selects this one ciphersuite, and any other similar 10584 ciphersuite (same bitmap) from *other* protocol versions. 10585 Thus, "RC4-MD5" again will properly select both the SSL 2.0 10586 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 10587 10588 Since SSL 2.0 does not have any ciphersuites for which the 10589 128/256 bit distinction would be relevant, this works for now. 10590 The proper fix will be to use different bits for AES128 and 10591 AES256, which would have avoided the problems from the beginning; 10592 however, bits are scarce, so we can only do this in a new release 10593 (not just a patchlevel) when we can change the SSL_CIPHER 10594 definition to split the single 'unsigned long mask' bitmap into 10595 multiple values to extend the available space. 10596 10597 *Bodo Moeller* 10598 10599### Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 10600 10601 * Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 10602 ([CVE-2006-4339]) [Ben Laurie and Google Security Team] 10603 10604 * Add AES IGE and biIGE modes. 10605 10606 *Ben Laurie* 10607 10608 * Change the Unix randomness entropy gathering to use poll() when 10609 possible instead of select(), since the latter has some 10610 undesirable limitations. 10611 10612 *Darryl Miles via Richard Levitte and Bodo Moeller* 10613 10614 * Disable "ECCdraft" ciphersuites more thoroughly. Now special 10615 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 10616 cannot be implicitly activated as part of, e.g., the "AES" alias. 10617 However, please upgrade to OpenSSL 0.9.9[-dev] for 10618 non-experimental use of the ECC ciphersuites to get TLS extension 10619 support, which is required for curve and point format negotiation 10620 to avoid potential handshake problems. 10621 10622 *Bodo Moeller* 10623 10624 * Disable rogue ciphersuites: 10625 10626 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 10627 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 10628 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 10629 10630 The latter two were purportedly from 10631 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 10632 appear there. 10633 10634 Also deactivate the remaining ciphersuites from 10635 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 10636 unofficial, and the ID has long expired. 10637 10638 *Bodo Moeller* 10639 10640 * Fix RSA blinding Heisenbug (problems sometimes occurred on 10641 dual-core machines) and other potential thread-safety issues. 10642 10643 *Bodo Moeller* 10644 10645 * Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 10646 versions), which is now available for royalty-free use 10647 (see <http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html>). 10648 Also, add Camellia TLS ciphersuites from RFC 4132. 10649 10650 To minimize changes between patchlevels in the OpenSSL 0.9.8 10651 series, Camellia remains excluded from compilation unless OpenSSL 10652 is configured with 'enable-camellia'. 10653 10654 *NTT* 10655 10656 * Disable the padding bug check when compression is in use. The padding 10657 bug check assumes the first packet is of even length, this is not 10658 necessarily true if compression is enabled and can result in false 10659 positives causing handshake failure. The actual bug test is ancient 10660 code so it is hoped that implementations will either have fixed it by 10661 now or any which still have the bug do not support compression. 10662 10663 *Steve Henson* 10664 10665### Changes between 0.9.8a and 0.9.8b [04 May 2006] 10666 10667 * When applying a cipher rule check to see if string match is an explicit 10668 cipher suite and only match that one cipher suite if it is. 10669 10670 *Steve Henson* 10671 10672 * Link in manifests for VC++ if needed. 10673 10674 *Austin Ziegler <halostatue@gmail.com>* 10675 10676 * Update support for ECC-based TLS ciphersuites according to 10677 draft-ietf-tls-ecc-12.txt with proposed changes (but without 10678 TLS extensions, which are supported starting with the 0.9.9 10679 branch, not in the OpenSSL 0.9.8 branch). 10680 10681 *Douglas Stebila* 10682 10683 * New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 10684 opaque EVP_CIPHER_CTX handling. 10685 10686 *Steve Henson* 10687 10688 * Fixes and enhancements to zlib compression code. We now only use 10689 "zlib1.dll" and use the default `__cdecl` calling convention on Win32 10690 to conform with the standards mentioned here: 10691 <http://www.zlib.net/DLL_FAQ.txt> 10692 Static zlib linking now works on Windows and the new --with-zlib-include 10693 --with-zlib-lib options to Configure can be used to supply the location 10694 of the headers and library. Gracefully handle case where zlib library 10695 can't be loaded. 10696 10697 *Steve Henson* 10698 10699 * Several fixes and enhancements to the OID generation code. The old code 10700 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 10701 handle numbers larger than ULONG_MAX, truncated printing and had a 10702 non standard OBJ_obj2txt() behaviour. 10703 10704 *Steve Henson* 10705 10706 * Add support for building of engines under engine/ as shared libraries 10707 under VC++ build system. 10708 10709 *Steve Henson* 10710 10711 * Corrected the numerous bugs in the Win32 path splitter in DSO. 10712 Hopefully, we will not see any false combination of paths any more. 10713 10714 *Richard Levitte* 10715 10716### Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 10717 10718 * Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 10719 (part of SSL_OP_ALL). This option used to disable the 10720 countermeasure against man-in-the-middle protocol-version 10721 rollback in the SSL 2.0 server implementation, which is a bad 10722 idea. ([CVE-2005-2969]) 10723 10724 *Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 10725 for Information Security, National Institute of Advanced Industrial 10726 Science and Technology [AIST], Japan)* 10727 10728 * Add two function to clear and return the verify parameter flags. 10729 10730 *Steve Henson* 10731 10732 * Keep cipherlists sorted in the source instead of sorting them at 10733 runtime, thus removing the need for a lock. 10734 10735 *Nils Larsch* 10736 10737 * Avoid some small subgroup attacks in Diffie-Hellman. 10738 10739 *Nick Mathewson and Ben Laurie* 10740 10741 * Add functions for well-known primes. 10742 10743 *Nick Mathewson* 10744 10745 * Extended Windows CE support. 10746 10747 *Satoshi Nakamura and Andy Polyakov* 10748 10749 * Initialize SSL_METHOD structures at compile time instead of during 10750 runtime, thus removing the need for a lock. 10751 10752 *Steve Henson* 10753 10754 * Make PKCS7_decrypt() work even if no certificate is supplied by 10755 attempting to decrypt each encrypted key in turn. Add support to 10756 smime utility. 10757 10758 *Steve Henson* 10759 10760### Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 10761 10762[NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 10763OpenSSL 0.9.8.] 10764 10765 * Add libcrypto.pc and libssl.pc for those who feel they need them. 10766 10767 *Richard Levitte* 10768 10769 * Change CA.sh and CA.pl so they don't bundle the CSR and the private 10770 key into the same file any more. 10771 10772 *Richard Levitte* 10773 10774 * Add initial support for Win64, both IA64 and AMD64/x64 flavors. 10775 10776 *Andy Polyakov* 10777 10778 * Add -utf8 command line and config file option to 'ca'. 10779 10780 *Stefan <stf@udoma.org* 10781 10782 * Removed the macro des_crypt(), as it seems to conflict with some 10783 libraries. Use DES_crypt(). 10784 10785 *Richard Levitte* 10786 10787 * Correct naming of the 'chil' and '4758cca' ENGINEs. This 10788 involves renaming the source and generated shared-libs for 10789 both. The engines will accept the corrected or legacy ids 10790 ('ncipher' and '4758_cca' respectively) when binding. NB, 10791 this only applies when building 'shared'. 10792 10793 *Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe* 10794 10795 * Add attribute functions to EVP_PKEY structure. Modify 10796 PKCS12_create() to recognize a CSP name attribute and 10797 use it. Make -CSP option work again in pkcs12 utility. 10798 10799 *Steve Henson* 10800 10801 * Add new functionality to the bn blinding code: 10802 - automatic re-creation of the BN_BLINDING parameters after 10803 a fixed number of uses (currently 32) 10804 - add new function for parameter creation 10805 - introduce flags to control the update behaviour of the 10806 BN_BLINDING parameters 10807 - hide BN_BLINDING structure 10808 Add a second BN_BLINDING slot to the RSA structure to improve 10809 performance when a single RSA object is shared among several 10810 threads. 10811 10812 *Nils Larsch* 10813 10814 * Add support for DTLS. 10815 10816 *Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie* 10817 10818 * Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 10819 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 10820 10821 *Walter Goulet* 10822 10823 * Remove buggy and incomplete DH cert support from 10824 ssl/ssl_rsa.c and ssl/s3_both.c 10825 10826 *Nils Larsch* 10827 10828 * Use SHA-1 instead of MD5 as the default digest algorithm for 10829 the `apps/openssl` commands. 10830 10831 *Nils Larsch* 10832 10833 * Compile clean with "-Wall -Wmissing-prototypes 10834 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 10835 DEBUG_SAFESTACK must also be set. 10836 10837 *Ben Laurie* 10838 10839 * Change ./Configure so that certain algorithms can be disabled by default. 10840 The new counterpiece to "no-xxx" is "enable-xxx". 10841 10842 The patented RC5 and MDC2 algorithms will now be disabled unless 10843 "enable-rc5" and "enable-mdc2", respectively, are specified. 10844 10845 (IDEA remains enabled despite being patented. This is because IDEA 10846 is frequently required for interoperability, and there is no license 10847 fee for non-commercial use. As before, "no-idea" can be used to 10848 avoid this algorithm.) 10849 10850 *Bodo Moeller* 10851 10852 * Add processing of proxy certificates (see RFC 3820). This work was 10853 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 10854 EGEE (Enabling Grids for E-science in Europe). 10855 10856 *Richard Levitte* 10857 10858 * RC4 performance overhaul on modern architectures/implementations, such 10859 as Intel P4, IA-64 and AMD64. 10860 10861 *Andy Polyakov* 10862 10863 * New utility extract-section.pl. This can be used specify an alternative 10864 section number in a pod file instead of having to treat each file as 10865 a separate case in Makefile. This can be done by adding two lines to the 10866 pod file: 10867 10868 =for comment openssl_section:XXX 10869 10870 The blank line is mandatory. 10871 10872 *Steve Henson* 10873 10874 * New arguments -certform, -keyform and -pass for s_client and s_server 10875 to allow alternative format key and certificate files and passphrase 10876 sources. 10877 10878 *Steve Henson* 10879 10880 * New structure X509_VERIFY_PARAM which combines current verify parameters, 10881 update associated structures and add various utility functions. 10882 10883 Add new policy related verify parameters, include policy checking in 10884 standard verify code. Enhance 'smime' application with extra parameters 10885 to support policy checking and print out. 10886 10887 *Steve Henson* 10888 10889 * Add a new engine to support VIA PadLock ACE extensions in the VIA C3 10890 Nehemiah processors. These extensions support AES encryption in hardware 10891 as well as RNG (though RNG support is currently disabled). 10892 10893 *Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov* 10894 10895 * Deprecate `BN_[get|set]_params()` functions (they were ignored internally). 10896 10897 *Geoff Thorpe* 10898 10899 * New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 10900 10901 *Andy Polyakov and a number of other people* 10902 10903 * Improved PowerPC platform support. Most notably BIGNUM assembler 10904 implementation contributed by IBM. 10905 10906 *Suresh Chari, Peter Waltenberg, Andy Polyakov* 10907 10908 * The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 10909 exponent rather than 'unsigned long'. There is a corresponding change to 10910 the new 'rsa_keygen' element of the RSA_METHOD structure. 10911 10912 *Jelte Jansen, Geoff Thorpe* 10913 10914 * Functionality for creating the initial serial number file is now 10915 moved from CA.pl to the 'ca' utility with a new option -create_serial. 10916 10917 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 10918 number file to 1, which is bound to cause problems. To avoid 10919 the problems while respecting compatibility between different 0.9.7 10920 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 10921 CA.pl for serial number initialization. With the new release 0.9.8, 10922 we can fix the problem directly in the 'ca' utility.) 10923 10924 *Steve Henson* 10925 10926 * Reduced header interdependencies by declaring more opaque objects in 10927 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 10928 give fewer recursive includes, which could break lazy source code - so 10929 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 10930 developers should define this symbol when building and using openssl to 10931 ensure they track the recommended behaviour, interfaces, [etc], but 10932 backwards-compatible behaviour prevails when this isn't defined. 10933 10934 *Geoff Thorpe* 10935 10936 * New function X509_POLICY_NODE_print() which prints out policy nodes. 10937 10938 *Steve Henson* 10939 10940 * Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 10941 This will generate a random key of the appropriate length based on the 10942 cipher context. The EVP_CIPHER can provide its own random key generation 10943 routine to support keys of a specific form. This is used in the des and 10944 3des routines to generate a key of the correct parity. Update S/MIME 10945 code to use new functions and hence generate correct parity DES keys. 10946 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 10947 valid (weak or incorrect parity). 10948 10949 *Steve Henson* 10950 10951 * Add a local set of CRLs that can be used by X509_verify_cert() as well 10952 as looking them up. This is useful when the verified structure may contain 10953 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 10954 present unless the new PKCS7_NO_CRL flag is asserted. 10955 10956 *Steve Henson* 10957 10958 * Extend ASN1 oid configuration module. It now additionally accepts the 10959 syntax: 10960 10961 shortName = some long name, 1.2.3.4 10962 10963 *Steve Henson* 10964 10965 * Reimplemented the BN_CTX implementation. There is now no more static 10966 limitation on the number of variables it can handle nor the depth of the 10967 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 10968 information can now expand as required, and rather than having a single 10969 static array of bignums, BN_CTX now uses a linked-list of such arrays 10970 allowing it to expand on demand whilst maintaining the usefulness of 10971 BN_CTX's "bundling". 10972 10973 *Geoff Thorpe* 10974 10975 * Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 10976 to allow all RSA operations to function using a single BN_CTX. 10977 10978 *Geoff Thorpe* 10979 10980 * Preliminary support for certificate policy evaluation and checking. This 10981 is initially intended to pass the tests outlined in "Conformance Testing 10982 of Relying Party Client Certificate Path Processing Logic" v1.07. 10983 10984 *Steve Henson* 10985 10986 * bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 10987 remained unused and not that useful. A variety of other little bignum 10988 tweaks and fixes have also been made continuing on from the audit (see 10989 below). 10990 10991 *Geoff Thorpe* 10992 10993 * Constify all or almost all d2i, c2i, s2i and r2i functions, along with 10994 associated ASN1, EVP and SSL functions and old ASN1 macros. 10995 10996 *Richard Levitte* 10997 10998 * BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 10999 and this should never fail. So the return value from the use of 11000 BN_set_word() (which can fail due to needless expansion) is now deprecated; 11001 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 11002 11003 *Geoff Thorpe* 11004 11005 * BN_CTX_get() should return zero-valued bignums, providing the same 11006 initialised value as BN_new(). 11007 11008 *Geoff Thorpe, suggested by Ulf Möller* 11009 11010 * Support for inhibitAnyPolicy certificate extension. 11011 11012 *Steve Henson* 11013 11014 * An audit of the BIGNUM code is underway, for which debugging code is 11015 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 11016 is considered valid when processing BIGNUMs, and causes execution to 11017 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 11018 further steps are taken to deliberately pollute unused data in BIGNUM 11019 structures to try and expose faulty code further on. For now, openssl will 11020 (in its default mode of operation) continue to tolerate the inconsistent 11021 forms that it has tolerated in the past, but authors and packagers should 11022 consider trying openssl and their own applications when compiled with 11023 these debugging symbols defined. It will help highlight potential bugs in 11024 their own code, and will improve the test coverage for OpenSSL itself. At 11025 some point, these tighter rules will become openssl's default to improve 11026 maintainability, though the assert()s and other overheads will remain only 11027 in debugging configurations. See bn.h for more details. 11028 11029 *Geoff Thorpe, Nils Larsch, Ulf Möller* 11030 11031 * BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 11032 that can only be obtained through BN_CTX_new() (which implicitly 11033 initialises it). The presence of this function only made it possible 11034 to overwrite an existing structure (and cause memory leaks). 11035 11036 *Geoff Thorpe* 11037 11038 * Because of the callback-based approach for implementing LHASH as a 11039 template type, lh_insert() adds opaque objects to hash-tables and 11040 lh_doall() or lh_doall_arg() are typically used with a destructor callback 11041 to clean up those corresponding objects before destroying the hash table 11042 (and losing the object pointers). So some over-zealous constifications in 11043 LHASH have been relaxed so that lh_insert() does not take (nor store) the 11044 objects as "const" and the `lh_doall[_arg]` callback wrappers are not 11045 prototyped to have "const" restrictions on the object pointers they are 11046 given (and so aren't required to cast them away any more). 11047 11048 *Geoff Thorpe* 11049 11050 * The tmdiff.h API was so ugly and minimal that our own timing utility 11051 (speed) prefers to use its own implementation. The two implementations 11052 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 11053 its object type properly exposed (MS_TM) instead of casting to/from 11054 `char *`. This may still change yet if someone realises MS_TM and 11055 `ms_time_***` 11056 aren't necessarily the greatest nomenclatures - but this is what was used 11057 internally to the implementation so I've used that for now. 11058 11059 *Geoff Thorpe* 11060 11061 * Ensure that deprecated functions do not get compiled when 11062 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 11063 the self-tests were still using deprecated key-generation functions so 11064 these have been updated also. 11065 11066 *Geoff Thorpe* 11067 11068 * Reorganise PKCS#7 code to separate the digest location functionality 11069 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest(). 11070 New function PKCS7_set_digest() to set the digest type for PKCS#7 11071 digestedData type. Add additional code to correctly generate the 11072 digestedData type and add support for this type in PKCS7 initialization 11073 functions. 11074 11075 *Steve Henson* 11076 11077 * New function PKCS7_set0_type_other() this initializes a PKCS7 11078 structure of type "other". 11079 11080 *Steve Henson* 11081 11082 * Fix prime generation loop in crypto/bn/bn_prime.pl by making 11083 sure the loop does correctly stop and breaking ("division by zero") 11084 modulus operations are not performed. The (pre-generated) prime 11085 table crypto/bn/bn_prime.h was already correct, but it could not be 11086 re-generated on some platforms because of the "division by zero" 11087 situation in the script. 11088 11089 *Ralf S. Engelschall* 11090 11091 * Update support for ECC-based TLS ciphersuites according to 11092 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 11093 SHA-1 now is only used for "small" curves (where the 11094 representation of a field element takes up to 24 bytes); for 11095 larger curves, the field element resulting from ECDH is directly 11096 used as premaster secret. 11097 11098 *Douglas Stebila (Sun Microsystems Laboratories)* 11099 11100 * Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 11101 curve secp160r1 to the tests. 11102 11103 *Douglas Stebila (Sun Microsystems Laboratories)* 11104 11105 * Add the possibility to load symbols globally with DSO. 11106 11107 *Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte* 11108 11109 * Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 11110 control of the error stack. 11111 11112 *Richard Levitte* 11113 11114 * Add support for STORE in ENGINE. 11115 11116 *Richard Levitte* 11117 11118 * Add the STORE type. The intention is to provide a common interface 11119 to certificate and key stores, be they simple file-based stores, or 11120 HSM-type store, or LDAP stores, or... 11121 NOTE: The code is currently UNTESTED and isn't really used anywhere. 11122 11123 *Richard Levitte* 11124 11125 * Add a generic structure called OPENSSL_ITEM. This can be used to 11126 pass a list of arguments to any function as well as provide a way 11127 for a function to pass data back to the caller. 11128 11129 *Richard Levitte* 11130 11131 * Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 11132 works like BUF_strdup() but can be used to duplicate a portion of 11133 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 11134 a memory area. 11135 11136 *Richard Levitte* 11137 11138 * Add the function sk_find_ex() which works like sk_find(), but will 11139 return an index to an element even if an exact match couldn't be 11140 found. The index is guaranteed to point at the element where the 11141 searched-for key would be inserted to preserve sorting order. 11142 11143 *Richard Levitte* 11144 11145 * Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 11146 takes an extra flags argument for optional functionality. Currently, 11147 the following flags are defined: 11148 11149 OBJ_BSEARCH_VALUE_ON_NOMATCH 11150 This one gets OBJ_bsearch_ex() to return a pointer to the first 11151 element where the comparing function returns a negative or zero 11152 number. 11153 11154 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 11155 This one gets OBJ_bsearch_ex() to return a pointer to the first 11156 element where the comparing function returns zero. This is useful 11157 if there are more than one element where the comparing function 11158 returns zero. 11159 11160 *Richard Levitte* 11161 11162 * Make it possible to create self-signed certificates with 'openssl ca' 11163 in such a way that the self-signed certificate becomes part of the 11164 CA database and uses the same mechanisms for serial number generation 11165 as all other certificate signing. The new flag '-selfsign' enables 11166 this functionality. Adapt CA.sh and CA.pl.in. 11167 11168 *Richard Levitte* 11169 11170 * Add functionality to check the public key of a certificate request 11171 against a given private. This is useful to check that a certificate 11172 request can be signed by that key (self-signing). 11173 11174 *Richard Levitte* 11175 11176 * Make it possible to have multiple active certificates with the same 11177 subject in the CA index file. This is done only if the keyword 11178 'unique_subject' is set to 'no' in the main CA section (default 11179 if 'CA_default') of the configuration file. The value is saved 11180 with the database itself in a separate index attribute file, 11181 named like the index file with '.attr' appended to the name. 11182 11183 *Richard Levitte* 11184 11185 * Generate multi-valued AVAs using '+' notation in config files for 11186 req and dirName. 11187 11188 *Steve Henson* 11189 11190 * Support for nameConstraints certificate extension. 11191 11192 *Steve Henson* 11193 11194 * Support for policyConstraints certificate extension. 11195 11196 *Steve Henson* 11197 11198 * Support for policyMappings certificate extension. 11199 11200 *Steve Henson* 11201 11202 * Make sure the default DSA_METHOD implementation only uses its 11203 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 11204 and change its own handlers to be NULL so as to remove unnecessary 11205 indirection. This lets alternative implementations fallback to the 11206 default implementation more easily. 11207 11208 *Geoff Thorpe* 11209 11210 * Support for directoryName in GeneralName related extensions 11211 in config files. 11212 11213 *Steve Henson* 11214 11215 * Make it possible to link applications using Makefile.shared. 11216 Make that possible even when linking against static libraries! 11217 11218 *Richard Levitte* 11219 11220 * Support for single pass processing for S/MIME signing. This now 11221 means that S/MIME signing can be done from a pipe, in addition 11222 cleartext signing (multipart/signed type) is effectively streaming 11223 and the signed data does not need to be all held in memory. 11224 11225 This is done with a new flag PKCS7_STREAM. When this flag is set 11226 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 11227 is done after the data is output (and digests calculated) in 11228 SMIME_write_PKCS7(). 11229 11230 *Steve Henson* 11231 11232 * Add full support for -rpath/-R, both in shared libraries and 11233 applications, at least on the platforms where it's known how 11234 to do it. 11235 11236 *Richard Levitte* 11237 11238 * In crypto/ec/ec_mult.c, implement fast point multiplication with 11239 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 11240 will now compute a table of multiples of the generator that 11241 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 11242 faster (notably in the case of a single point multiplication, 11243 scalar * generator). 11244 11245 *Nils Larsch, Bodo Moeller* 11246 11247 * IPv6 support for certificate extensions. The various extensions 11248 which use the IP:a.b.c.d can now take IPv6 addresses using the 11249 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 11250 correctly. 11251 11252 *Steve Henson* 11253 11254 * Added an ENGINE that implements RSA by performing private key 11255 exponentiations with the GMP library. The conversions to and from 11256 GMP's mpz_t format aren't optimised nor are any montgomery forms 11257 cached, and on x86 it appears OpenSSL's own performance has caught up. 11258 However there are likely to be other architectures where GMP could 11259 provide a boost. This ENGINE is not built in by default, but it can be 11260 specified at Configure time and should be accompanied by the necessary 11261 linker additions, eg; 11262 ./config -DOPENSSL_USE_GMP -lgmp 11263 11264 *Geoff Thorpe* 11265 11266 * "openssl engine" will not display ENGINE/DSO load failure errors when 11267 testing availability of engines with "-t" - the old behaviour is 11268 produced by increasing the feature's verbosity with "-tt". 11269 11270 *Geoff Thorpe* 11271 11272 * ECDSA routines: under certain error conditions uninitialized BN objects 11273 could be freed. Solution: make sure initialization is performed early 11274 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 11275 via PR#459) 11276 11277 *Lutz Jaenicke* 11278 11279 * Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 11280 and DH_METHOD (eg. by ENGINE implementations) to override the normal 11281 software implementations. For DSA and DH, parameter generation can 11282 also be overridden by providing the appropriate method callbacks. 11283 11284 *Geoff Thorpe* 11285 11286 * Change the "progress" mechanism used in key-generation and 11287 primality testing to functions that take a new BN_GENCB pointer in 11288 place of callback/argument pairs. The new API functions have `_ex` 11289 postfixes and the older functions are reimplemented as wrappers for 11290 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 11291 declarations of the old functions to help (graceful) attempts to 11292 migrate to the new functions. Also, the new key-generation API 11293 functions operate on a caller-supplied key-structure and return 11294 success/failure rather than returning a key or NULL - this is to 11295 help make "keygen" another member function of RSA_METHOD etc. 11296 11297 Example for using the new callback interface: 11298 11299 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 11300 void *my_arg = ...; 11301 BN_GENCB my_cb; 11302 11303 BN_GENCB_set(&my_cb, my_callback, my_arg); 11304 11305 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 11306 /* For the meaning of a, b in calls to my_callback(), see the 11307 * documentation of the function that calls the callback. 11308 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 11309 * my_callback should return 1 if it wants BN_is_prime_ex() 11310 * to continue, or 0 to stop. 11311 */ 11312 11313 *Geoff Thorpe* 11314 11315 * Change the ZLIB compression method to be stateful, and make it 11316 available to TLS with the number defined in 11317 draft-ietf-tls-compression-04.txt. 11318 11319 *Richard Levitte* 11320 11321 * Add the ASN.1 structures and functions for CertificatePair, which 11322 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 11323 11324 CertificatePair ::= SEQUENCE { 11325 forward [0] Certificate OPTIONAL, 11326 reverse [1] Certificate OPTIONAL, 11327 -- at least one of the pair shall be present -- } 11328 11329 Also implement the PEM functions to read and write certificate 11330 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 11331 11332 This needed to be defined, mostly for the sake of the LDAP 11333 attribute crossCertificatePair, but may prove useful elsewhere as 11334 well. 11335 11336 *Richard Levitte* 11337 11338 * Make it possible to inhibit symlinking of shared libraries in 11339 Makefile.shared, for Cygwin's sake. 11340 11341 *Richard Levitte* 11342 11343 * Extend the BIGNUM API by creating a function 11344 void BN_set_negative(BIGNUM *a, int neg); 11345 and a macro that behave like 11346 int BN_is_negative(const BIGNUM *a); 11347 11348 to avoid the need to access 'a->neg' directly in applications. 11349 11350 *Nils Larsch* 11351 11352 * Implement fast modular reduction for pseudo-Mersenne primes 11353 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 11354 EC_GROUP_new_curve_GFp() will now automatically use this 11355 if applicable. 11356 11357 *Nils Larsch <nla@trustcenter.de>* 11358 11359 * Add new lock type (CRYPTO_LOCK_BN). 11360 11361 *Bodo Moeller* 11362 11363 * Change the ENGINE framework to automatically load engines 11364 dynamically from specific directories unless they could be 11365 found to already be built in or loaded. Move all the 11366 current engines except for the cryptodev one to a new 11367 directory engines/. 11368 The engines in engines/ are built as shared libraries if 11369 the "shared" options was given to ./Configure or ./config. 11370 Otherwise, they are inserted in libcrypto.a. 11371 /usr/local/ssl/engines is the default directory for dynamic 11372 engines, but that can be overridden at configure time through 11373 the usual use of --prefix and/or --openssldir, and at run 11374 time with the environment variable OPENSSL_ENGINES. 11375 11376 *Geoff Thorpe and Richard Levitte* 11377 11378 * Add Makefile.shared, a helper makefile to build shared 11379 libraries. Adapt Makefile.org. 11380 11381 *Richard Levitte* 11382 11383 * Add version info to Win32 DLLs. 11384 11385 *Peter 'Luna' Runestig" <peter@runestig.com>* 11386 11387 * Add new 'medium level' PKCS#12 API. Certificates and keys 11388 can be added using this API to created arbitrary PKCS#12 11389 files while avoiding the low-level API. 11390 11391 New options to PKCS12_create(), key or cert can be NULL and 11392 will then be omitted from the output file. The encryption 11393 algorithm NIDs can be set to -1 for no encryption, the mac 11394 iteration count can be set to 0 to omit the mac. 11395 11396 Enhance pkcs12 utility by making the -nokeys and -nocerts 11397 options work when creating a PKCS#12 file. New option -nomac 11398 to omit the mac, NONE can be set for an encryption algorithm. 11399 New code is modified to use the enhanced PKCS12_create() 11400 instead of the low-level API. 11401 11402 *Steve Henson* 11403 11404 * Extend ASN1 encoder to support indefinite length constructed 11405 encoding. This can output sequences tags and octet strings in 11406 this form. Modify pk7_asn1.c to support indefinite length 11407 encoding. This is experimental and needs additional code to 11408 be useful, such as an ASN1 bio and some enhanced streaming 11409 PKCS#7 code. 11410 11411 Extend template encode functionality so that tagging is passed 11412 down to the template encoder. 11413 11414 *Steve Henson* 11415 11416 * Let 'openssl req' fail if an argument to '-newkey' is not 11417 recognized instead of using RSA as a default. 11418 11419 *Bodo Moeller* 11420 11421 * Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 11422 As these are not official, they are not included in "ALL"; 11423 the "ECCdraft" ciphersuite group alias can be used to select them. 11424 11425 *Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)* 11426 11427 * Add ECDH engine support. 11428 11429 *Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)* 11430 11431 * Add ECDH in new directory crypto/ecdh/. 11432 11433 *Douglas Stebila (Sun Microsystems Laboratories)* 11434 11435 * Let BN_rand_range() abort with an error after 100 iterations 11436 without success (which indicates a broken PRNG). 11437 11438 *Bodo Moeller* 11439 11440 * Change BN_mod_sqrt() so that it verifies that the input value 11441 is really the square of the return value. (Previously, 11442 BN_mod_sqrt would show GIGO behaviour.) 11443 11444 *Bodo Moeller* 11445 11446 * Add named elliptic curves over binary fields from X9.62, SECG, 11447 and WAP/WTLS; add OIDs that were still missing. 11448 11449 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11450 11451 * Extend the EC library for elliptic curves over binary fields 11452 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 11453 New EC_METHOD: 11454 11455 EC_GF2m_simple_method 11456 11457 New API functions: 11458 11459 EC_GROUP_new_curve_GF2m 11460 EC_GROUP_set_curve_GF2m 11461 EC_GROUP_get_curve_GF2m 11462 EC_POINT_set_affine_coordinates_GF2m 11463 EC_POINT_get_affine_coordinates_GF2m 11464 EC_POINT_set_compressed_coordinates_GF2m 11465 11466 Point compression for binary fields is disabled by default for 11467 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 11468 enable it). 11469 11470 As binary polynomials are represented as BIGNUMs, various members 11471 of the EC_GROUP and EC_POINT data structures can be shared 11472 between the implementations for prime fields and binary fields; 11473 the above `..._GF2m functions` (except for EX_GROUP_new_curve_GF2m) 11474 are essentially identical to their `..._GFp` counterparts. 11475 (For simplicity, the `..._GFp` prefix has been dropped from 11476 various internal method names.) 11477 11478 An internal 'field_div' method (similar to 'field_mul' and 11479 'field_sqr') has been added; this is used only for binary fields. 11480 11481 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11482 11483 * Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 11484 through methods ('mul', 'precompute_mult'). 11485 11486 The generic implementations (now internally called 'ec_wNAF_mul' 11487 and 'ec_wNAF_precomputed_mult') remain the default if these 11488 methods are undefined. 11489 11490 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11491 11492 * New function EC_GROUP_get_degree, which is defined through 11493 EC_METHOD. For curves over prime fields, this returns the bit 11494 length of the modulus. 11495 11496 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11497 11498 * New functions EC_GROUP_dup, EC_POINT_dup. 11499 (These simply call ..._new and ..._copy). 11500 11501 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11502 11503 * Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 11504 Polynomials are represented as BIGNUMs (where the sign bit is not 11505 used) in the following functions [macros]: 11506 11507 BN_GF2m_add 11508 BN_GF2m_sub [= BN_GF2m_add] 11509 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 11510 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 11511 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 11512 BN_GF2m_mod_inv 11513 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 11514 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 11515 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 11516 BN_GF2m_cmp [= BN_ucmp] 11517 11518 (Note that only the 'mod' functions are actually for fields GF(2^m). 11519 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 11520 11521 For some functions, an the irreducible polynomial defining a 11522 field can be given as an 'unsigned int[]' with strictly 11523 decreasing elements giving the indices of those bits that are set; 11524 i.e., p[] represents the polynomial 11525 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 11526 where 11527 p[0] > p[1] > ... > p[k] = 0. 11528 This applies to the following functions: 11529 11530 BN_GF2m_mod_arr 11531 BN_GF2m_mod_mul_arr 11532 BN_GF2m_mod_sqr_arr 11533 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 11534 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 11535 BN_GF2m_mod_exp_arr 11536 BN_GF2m_mod_sqrt_arr 11537 BN_GF2m_mod_solve_quad_arr 11538 BN_GF2m_poly2arr 11539 BN_GF2m_arr2poly 11540 11541 Conversion can be performed by the following functions: 11542 11543 BN_GF2m_poly2arr 11544 BN_GF2m_arr2poly 11545 11546 bntest.c has additional tests for binary polynomial arithmetic. 11547 11548 Two implementations for BN_GF2m_mod_div() are available. 11549 The default algorithm simply uses BN_GF2m_mod_inv() and 11550 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 11551 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 11552 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 11553 11554 *Sheueling Chang Shantz and Douglas Stebila (Sun Microsystems Laboratories)* 11555 11556 * Add new error code 'ERR_R_DISABLED' that can be used when some 11557 functionality is disabled at compile-time. 11558 11559 *Douglas Stebila <douglas.stebila@sun.com>* 11560 11561 * Change default behaviour of 'openssl asn1parse' so that more 11562 information is visible when viewing, e.g., a certificate: 11563 11564 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 11565 mode the content of non-printable OCTET STRINGs is output in a 11566 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 11567 avoid the appearance of a printable string. 11568 11569 *Nils Larsch <nla@trustcenter.de>* 11570 11571 * Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 11572 functions 11573 EC_GROUP_set_asn1_flag() 11574 EC_GROUP_get_asn1_flag() 11575 EC_GROUP_set_point_conversion_form() 11576 EC_GROUP_get_point_conversion_form() 11577 These control ASN1 encoding details: 11578 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 11579 has been set to OPENSSL_EC_NAMED_CURVE. 11580 - Points are encoded in uncompressed form by default; options for 11581 asn1_for are as for point2oct, namely 11582 POINT_CONVERSION_COMPRESSED 11583 POINT_CONVERSION_UNCOMPRESSED 11584 POINT_CONVERSION_HYBRID 11585 11586 Also add 'seed' and 'seed_len' members to EC_GROUP with access 11587 functions 11588 EC_GROUP_set_seed() 11589 EC_GROUP_get0_seed() 11590 EC_GROUP_get_seed_len() 11591 This is used only for ASN1 purposes (so far). 11592 11593 *Nils Larsch <nla@trustcenter.de>* 11594 11595 * Add 'field_type' member to EC_METHOD, which holds the NID 11596 of the appropriate field type OID. The new function 11597 EC_METHOD_get_field_type() returns this value. 11598 11599 *Nils Larsch <nla@trustcenter.de>* 11600 11601 * Add functions 11602 EC_POINT_point2bn() 11603 EC_POINT_bn2point() 11604 EC_POINT_point2hex() 11605 EC_POINT_hex2point() 11606 providing useful interfaces to EC_POINT_point2oct() and 11607 EC_POINT_oct2point(). 11608 11609 *Nils Larsch <nla@trustcenter.de>* 11610 11611 * Change internals of the EC library so that the functions 11612 EC_GROUP_set_generator() 11613 EC_GROUP_get_generator() 11614 EC_GROUP_get_order() 11615 EC_GROUP_get_cofactor() 11616 are implemented directly in crypto/ec/ec_lib.c and not dispatched 11617 to methods, which would lead to unnecessary code duplication when 11618 adding different types of curves. 11619 11620 *Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller* 11621 11622 * Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 11623 arithmetic, and such that modified wNAFs are generated 11624 (which avoid length expansion in many cases). 11625 11626 *Bodo Moeller* 11627 11628 * Add a function EC_GROUP_check_discriminant() (defined via 11629 EC_METHOD) that verifies that the curve discriminant is non-zero. 11630 11631 Add a function EC_GROUP_check() that makes some sanity tests 11632 on a EC_GROUP, its generator and order. This includes 11633 EC_GROUP_check_discriminant(). 11634 11635 *Nils Larsch <nla@trustcenter.de>* 11636 11637 * Add ECDSA in new directory crypto/ecdsa/. 11638 11639 Add applications 'openssl ecparam' and 'openssl ecdsa' 11640 (these are based on 'openssl dsaparam' and 'openssl dsa'). 11641 11642 ECDSA support is also included in various other files across the 11643 library. Most notably, 11644 - 'openssl req' now has a '-newkey ecdsa:file' option; 11645 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 11646 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 11647 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 11648 them suitable for ECDSA where domain parameters must be 11649 extracted before the specific public key; 11650 - ECDSA engine support has been added. 11651 11652 *Nils Larsch <nla@trustcenter.de>* 11653 11654 * Include some named elliptic curves, and add OIDs from X9.62, 11655 SECG, and WAP/WTLS. Each curve can be obtained from the new 11656 function 11657 EC_GROUP_new_by_curve_name(), 11658 and the list of available named curves can be obtained with 11659 EC_get_builtin_curves(). 11660 Also add a 'curve_name' member to EC_GROUP objects, which can be 11661 accessed via 11662 EC_GROUP_set_curve_name() 11663 EC_GROUP_get_curve_name() 11664 11665 *Nils Larsch <larsch@trustcenter.de, Bodo Moeller* 11666 11667 * Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 11668 was actually never needed) and in BN_mul(). The removal in BN_mul() 11669 required a small change in bn_mul_part_recursive() and the addition 11670 of the functions bn_cmp_part_words(), bn_sub_part_words() and 11671 bn_add_part_words(), which do the same thing as bn_cmp_words(), 11672 bn_sub_words() and bn_add_words() except they take arrays with 11673 differing sizes. 11674 11675 *Richard Levitte* 11676 11677### Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 11678 11679 * Cleanse PEM buffers before freeing them since they may contain 11680 sensitive data. 11681 11682 *Benjamin Bennett <ben@psc.edu>* 11683 11684 * Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 11685 a ciphersuite string such as "DEFAULT:RSA" cannot enable 11686 authentication-only ciphersuites. 11687 11688 *Bodo Moeller* 11689 11690 * Since AES128 and AES256 share a single mask bit in the logic of 11691 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 11692 kludge to work properly if AES128 is available and AES256 isn't. 11693 11694 *Victor Duchovni* 11695 11696 * Expand security boundary to match 1.1.1 module. 11697 11698 *Steve Henson* 11699 11700 * Remove redundant features: hash file source, editing of test vectors 11701 modify fipsld to use external fips_premain.c signature. 11702 11703 *Steve Henson* 11704 11705 * New perl script mkfipsscr.pl to create shell scripts or batch files to 11706 run algorithm test programs. 11707 11708 *Steve Henson* 11709 11710 * Make algorithm test programs more tolerant of whitespace. 11711 11712 *Steve Henson* 11713 11714 * Have SSL/TLS server implementation tolerate "mismatched" record 11715 protocol version while receiving ClientHello even if the 11716 ClientHello is fragmented. (The server can't insist on the 11717 particular protocol version it has chosen before the ServerHello 11718 message has informed the client about his choice.) 11719 11720 *Bodo Moeller* 11721 11722 * Load error codes if they are not already present instead of using a 11723 static variable. This allows them to be cleanly unloaded and reloaded. 11724 11725 *Steve Henson* 11726 11727### Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 11728 11729 * Introduce limits to prevent malicious keys being able to 11730 cause a denial of service. ([CVE-2006-2940]) 11731 11732 *Steve Henson, Bodo Moeller* 11733 11734 * Fix ASN.1 parsing of certain invalid structures that can result 11735 in a denial of service. ([CVE-2006-2937]) [Steve Henson] 11736 11737 * Fix buffer overflow in SSL_get_shared_ciphers() function. 11738 ([CVE-2006-3738]) [Tavis Ormandy and Will Drewry, Google Security Team] 11739 11740 * Fix SSL client code which could crash if connecting to a 11741 malicious SSLv2 server. ([CVE-2006-4343]) 11742 11743 *Tavis Ormandy and Will Drewry, Google Security Team* 11744 11745 * Change ciphersuite string processing so that an explicit 11746 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 11747 will no longer include "AES128-SHA"), and any other similar 11748 ciphersuite (same bitmap) from *other* protocol versions (so that 11749 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 11750 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 11751 changes from 0.9.8b and 0.9.8d. 11752 11753 *Bodo Moeller* 11754 11755### Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 11756 11757 * Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 11758 ([CVE-2006-4339]) [Ben Laurie and Google Security Team] 11759 11760 * Change the Unix randomness entropy gathering to use poll() when 11761 possible instead of select(), since the latter has some 11762 undesirable limitations. 11763 11764 *Darryl Miles via Richard Levitte and Bodo Moeller* 11765 11766 * Disable rogue ciphersuites: 11767 11768 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 11769 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 11770 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 11771 11772 The latter two were purportedly from 11773 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 11774 appear there. 11775 11776 Also deactivate the remaining ciphersuites from 11777 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 11778 unofficial, and the ID has long expired. 11779 11780 *Bodo Moeller* 11781 11782 * Fix RSA blinding Heisenbug (problems sometimes occurred on 11783 dual-core machines) and other potential thread-safety issues. 11784 11785 *Bodo Moeller* 11786 11787### Changes between 0.9.7i and 0.9.7j [04 May 2006] 11788 11789 * Adapt fipsld and the build system to link against the validated FIPS 11790 module in FIPS mode. 11791 11792 *Steve Henson* 11793 11794 * Fixes for VC++ 2005 build under Windows. 11795 11796 *Steve Henson* 11797 11798 * Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 11799 from a Windows bash shell such as MSYS. It is autodetected from the 11800 "config" script when run from a VC++ environment. Modify standard VC++ 11801 build to use fipscanister.o from the GNU make build. 11802 11803 *Steve Henson* 11804 11805### Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 11806 11807 * Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 11808 The value now differs depending on if you build for FIPS or not. 11809 BEWARE! A program linked with a shared FIPSed libcrypto can't be 11810 safely run with a non-FIPSed libcrypto, as it may crash because of 11811 the difference induced by this change. 11812 11813 *Andy Polyakov* 11814 11815### Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 11816 11817 * Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 11818 (part of SSL_OP_ALL). This option used to disable the 11819 countermeasure against man-in-the-middle protocol-version 11820 rollback in the SSL 2.0 server implementation, which is a bad 11821 idea. ([CVE-2005-2969]) 11822 11823 *Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 11824 for Information Security, National Institute of Advanced Industrial 11825 Science and Technology [AIST, Japan)]* 11826 11827 * Minimal support for X9.31 signatures and PSS padding modes. This is 11828 mainly for FIPS compliance and not fully integrated at this stage. 11829 11830 *Steve Henson* 11831 11832 * For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 11833 the exponentiation using a fixed-length exponent. (Otherwise, 11834 the information leaked through timing could expose the secret key 11835 after many signatures; cf. Bleichenbacher's attack on DSA with 11836 biased k.) 11837 11838 *Bodo Moeller* 11839 11840 * Make a new fixed-window mod_exp implementation the default for 11841 RSA, DSA, and DH private-key operations so that the sequence of 11842 squares and multiplies and the memory access pattern are 11843 independent of the particular secret key. This will mitigate 11844 cache-timing and potential related attacks. 11845 11846 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 11847 and this is automatically used by BN_mod_exp_mont() if the new flag 11848 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 11849 will use this BN flag for private exponents unless the flag 11850 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 11851 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 11852 11853 *Matthew D Wood (Intel Corp), with some changes by Bodo Moeller* 11854 11855 * Change the client implementation for SSLv23_method() and 11856 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 11857 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 11858 (Previously, the SSL 2.0 backwards compatible Client Hello 11859 message format would be used even with SSL_OP_NO_SSLv2.) 11860 11861 *Bodo Moeller* 11862 11863 * Add support for smime-type MIME parameter in S/MIME messages which some 11864 clients need. 11865 11866 *Steve Henson* 11867 11868 * New function BN_MONT_CTX_set_locked() to set montgomery parameters in 11869 a threadsafe manner. Modify rsa code to use new function and add calls 11870 to dsa and dh code (which had race conditions before). 11871 11872 *Steve Henson* 11873 11874 * Include the fixed error library code in the C error file definitions 11875 instead of fixing them up at runtime. This keeps the error code 11876 structures constant. 11877 11878 *Steve Henson* 11879 11880### Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 11881 11882[NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 11883OpenSSL 0.9.8.] 11884 11885 * Fixes for newer kerberos headers. NB: the casts are needed because 11886 the 'length' field is signed on one version and unsigned on another 11887 with no (?) obvious way to tell the difference, without these VC++ 11888 complains. Also the "definition" of FAR (blank) is no longer included 11889 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 11890 some needed definitions. 11891 11892 *Steve Henson* 11893 11894 * Undo Cygwin change. 11895 11896 *Ulf Möller* 11897 11898 * Added support for proxy certificates according to RFC 3820. 11899 Because they may be a security thread to unaware applications, 11900 they must be explicitly allowed in run-time. See 11901 docs/HOWTO/proxy_certificates.txt for further information. 11902 11903 *Richard Levitte* 11904 11905### Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 11906 11907 * Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 11908 server and client random values. Previously 11909 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 11910 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 11911 11912 This change has negligible security impact because: 11913 11914 1. Server and client random values still have 24 bytes of pseudo random 11915 data. 11916 11917 2. Server and client random values are sent in the clear in the initial 11918 handshake. 11919 11920 3. The master secret is derived using the premaster secret (48 bytes in 11921 size for static RSA ciphersuites) as well as client server and random 11922 values. 11923 11924 The OpenSSL team would like to thank the UK NISCC for bringing this issue 11925 to our attention. 11926 11927 *Stephen Henson, reported by UK NISCC* 11928 11929 * Use Windows randomness collection on Cygwin. 11930 11931 *Ulf Möller* 11932 11933 * Fix hang in EGD/PRNGD query when communication socket is closed 11934 prematurely by EGD/PRNGD. 11935 11936 *Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014* 11937 11938 * Prompt for pass phrases when appropriate for PKCS12 input format. 11939 11940 *Steve Henson* 11941 11942 * Back-port of selected performance improvements from development 11943 branch, as well as improved support for PowerPC platforms. 11944 11945 *Andy Polyakov* 11946 11947 * Add lots of checks for memory allocation failure, error codes to indicate 11948 failure and freeing up memory if a failure occurs. 11949 11950 *Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson* 11951 11952 * Add new -passin argument to dgst. 11953 11954 *Steve Henson* 11955 11956 * Perform some character comparisons of different types in X509_NAME_cmp: 11957 this is needed for some certificates that re-encode DNs into UTF8Strings 11958 (in violation of RFC3280) and can't or won't issue name rollover 11959 certificates. 11960 11961 *Steve Henson* 11962 11963 * Make an explicit check during certificate validation to see that 11964 the CA setting in each certificate on the chain is correct. As a 11965 side effect always do the following basic checks on extensions, 11966 not just when there's an associated purpose to the check: 11967 11968 - if there is an unhandled critical extension (unless the user 11969 has chosen to ignore this fault) 11970 - if the path length has been exceeded (if one is set at all) 11971 - that certain extensions fit the associated purpose (if one has 11972 been given) 11973 11974 *Richard Levitte* 11975 11976### Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 11977 11978 * Avoid a race condition when CRLs are checked in a multi threaded 11979 environment. This would happen due to the reordering of the revoked 11980 entries during signature checking and serial number lookup. Now the 11981 encoding is cached and the serial number sort performed under a lock. 11982 Add new STACK function sk_is_sorted(). 11983 11984 *Steve Henson* 11985 11986 * Add Delta CRL to the extension code. 11987 11988 *Steve Henson* 11989 11990 * Various fixes to s3_pkt.c so alerts are sent properly. 11991 11992 *David Holmes <d.holmes@f5.com>* 11993 11994 * Reduce the chances of duplicate issuer name and serial numbers (in 11995 violation of RFC3280) using the OpenSSL certificate creation utilities. 11996 This is done by creating a random 64 bit value for the initial serial 11997 number when a serial number file is created or when a self signed 11998 certificate is created using 'openssl req -x509'. The initial serial 11999 number file is created using 'openssl x509 -next_serial' in CA.pl 12000 rather than being initialized to 1. 12001 12002 *Steve Henson* 12003 12004### Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 12005 12006 * Fix null-pointer assignment in do_change_cipher_spec() revealed 12007 by using the Codenomicon TLS Test Tool ([CVE-2004-0079]) 12008 12009 *Joe Orton, Steve Henson* 12010 12011 * Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 12012 ([CVE-2004-0112]) 12013 12014 *Joe Orton, Steve Henson* 12015 12016 * Make it possible to have multiple active certificates with the same 12017 subject in the CA index file. This is done only if the keyword 12018 'unique_subject' is set to 'no' in the main CA section (default 12019 if 'CA_default') of the configuration file. The value is saved 12020 with the database itself in a separate index attribute file, 12021 named like the index file with '.attr' appended to the name. 12022 12023 *Richard Levitte* 12024 12025 * X509 verify fixes. Disable broken certificate workarounds when 12026 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 12027 keyUsage extension present. Don't accept CRLs with unhandled critical 12028 extensions: since verify currently doesn't process CRL extensions this 12029 rejects a CRL with *any* critical extensions. Add new verify error codes 12030 for these cases. 12031 12032 *Steve Henson* 12033 12034 * When creating an OCSP nonce use an OCTET STRING inside the extnValue. 12035 A clarification of RFC2560 will require the use of OCTET STRINGs and 12036 some implementations cannot handle the current raw format. Since OpenSSL 12037 copies and compares OCSP nonces as opaque blobs without any attempt at 12038 parsing them this should not create any compatibility issues. 12039 12040 *Steve Henson* 12041 12042 * New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 12043 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 12044 this HMAC (and other) operations are several times slower than OpenSSL 12045 < 0.9.7. 12046 12047 *Steve Henson* 12048 12049 * Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 12050 12051 *Peter Sylvester <Peter.Sylvester@EdelWeb.fr>* 12052 12053 * Use the correct content when signing type "other". 12054 12055 *Steve Henson* 12056 12057### Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 12058 12059 * Fix various bugs revealed by running the NISCC test suite: 12060 12061 Stop out of bounds reads in the ASN1 code when presented with 12062 invalid tags (CVE-2003-0543 and CVE-2003-0544). 12063 12064 Free up ASN1_TYPE correctly if ANY type is invalid ([CVE-2003-0545]). 12065 12066 If verify callback ignores invalid public key errors don't try to check 12067 certificate signature with the NULL public key. 12068 12069 *Steve Henson* 12070 12071 * New -ignore_err option in ocsp application to stop the server 12072 exiting on the first error in a request. 12073 12074 *Steve Henson* 12075 12076 * In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 12077 if the server requested one: as stated in TLS 1.0 and SSL 3.0 12078 specifications. 12079 12080 *Steve Henson* 12081 12082 * In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 12083 extra data after the compression methods not only for TLS 1.0 12084 but also for SSL 3.0 (as required by the specification). 12085 12086 *Bodo Moeller; problem pointed out by Matthias Loepfe* 12087 12088 * Change X509_certificate_type() to mark the key as exported/exportable 12089 when it's 512 *bits* long, not 512 bytes. 12090 12091 *Richard Levitte* 12092 12093 * Change AES_cbc_encrypt() so it outputs exact multiple of 12094 blocks during encryption. 12095 12096 *Richard Levitte* 12097 12098 * Various fixes to base64 BIO and non blocking I/O. On write 12099 flushes were not handled properly if the BIO retried. On read 12100 data was not being buffered properly and had various logic bugs. 12101 This also affects blocking I/O when the data being decoded is a 12102 certain size. 12103 12104 *Steve Henson* 12105 12106 * Various S/MIME bugfixes and compatibility changes: 12107 output correct application/pkcs7 MIME type if 12108 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 12109 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 12110 of files as .eml work). Correctly handle very long lines in MIME 12111 parser. 12112 12113 *Steve Henson* 12114 12115### Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 12116 12117 * Countermeasure against the Klima-Pokorny-Rosa extension of 12118 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 12119 a protocol version number mismatch like a decryption error 12120 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 12121 12122 *Bodo Moeller* 12123 12124 * Turn on RSA blinding by default in the default implementation 12125 to avoid a timing attack. Applications that don't want it can call 12126 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 12127 They would be ill-advised to do so in most cases. 12128 12129 *Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller* 12130 12131 * Change RSA blinding code so that it works when the PRNG is not 12132 seeded (in this case, the secret RSA exponent is abused as 12133 an unpredictable seed -- if it is not unpredictable, there 12134 is no point in blinding anyway). Make RSA blinding thread-safe 12135 by remembering the creator's thread ID in rsa->blinding and 12136 having all other threads use local one-time blinding factors 12137 (this requires more computation than sharing rsa->blinding, but 12138 avoids excessive locking; and if an RSA object is not shared 12139 between threads, blinding will still be very fast). 12140 12141 *Bodo Moeller* 12142 12143 * Fixed a typo bug that would cause ENGINE_set_default() to set an 12144 ENGINE as defaults for all supported algorithms irrespective of 12145 the 'flags' parameter. 'flags' is now honoured, so applications 12146 should make sure they are passing it correctly. 12147 12148 *Geoff Thorpe* 12149 12150 * Target "mingw" now allows native Windows code to be generated in 12151 the Cygwin environment as well as with the MinGW compiler. 12152 12153 *Ulf Moeller* 12154 12155### Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 12156 12157 * In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 12158 via timing by performing a MAC computation even if incorrect 12159 block cipher padding has been found. This is a countermeasure 12160 against active attacks where the attacker has to distinguish 12161 between bad padding and a MAC verification error. ([CVE-2003-0078]) 12162 12163 *Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 12164 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 12165 Martin Vuagnoux (EPFL, Ilion)* 12166 12167 * Make the no-err option work as intended. The intention with no-err 12168 is not to have the whole error stack handling routines removed from 12169 libcrypto, it's only intended to remove all the function name and 12170 reason texts, thereby removing some of the footprint that may not 12171 be interesting if those errors aren't displayed anyway. 12172 12173 NOTE: it's still possible for any application or module to have its 12174 own set of error texts inserted. The routines are there, just not 12175 used by default when no-err is given. 12176 12177 *Richard Levitte* 12178 12179 * Add support for FreeBSD on IA64. 12180 12181 *dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454* 12182 12183 * Adjust DES_cbc_cksum() so it returns the same value as the MIT 12184 Kerberos function mit_des_cbc_cksum(). Before this change, 12185 the value returned by DES_cbc_cksum() was like the one from 12186 mit_des_cbc_cksum(), except the bytes were swapped. 12187 12188 *Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte* 12189 12190 * Allow an application to disable the automatic SSL chain building. 12191 Before this a rather primitive chain build was always performed in 12192 ssl3_output_cert_chain(): an application had no way to send the 12193 correct chain if the automatic operation produced an incorrect result. 12194 12195 Now the chain builder is disabled if either: 12196 12197 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 12198 12199 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 12200 12201 The reasoning behind this is that an application would not want the 12202 auto chain building to take place if extra chain certificates are 12203 present and it might also want a means of sending no additional 12204 certificates (for example the chain has two certificates and the 12205 root is omitted). 12206 12207 *Steve Henson* 12208 12209 * Add the possibility to build without the ENGINE framework. 12210 12211 *Steven Reddie <smr@essemer.com.au> via Richard Levitte* 12212 12213 * Under Win32 gmtime() can return NULL: check return value in 12214 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 12215 12216 *Steve Henson* 12217 12218 * DSA routines: under certain error conditions uninitialized BN objects 12219 could be freed. Solution: make sure initialization is performed early 12220 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 12221 Nils Larsch <nla@trustcenter.de> via PR#459) 12222 12223 *Lutz Jaenicke* 12224 12225 * Another fix for SSLv2 session ID handling: the session ID was incorrectly 12226 checked on reconnect on the client side, therefore session resumption 12227 could still fail with a "ssl session id is different" error. This 12228 behaviour is masked when SSL_OP_ALL is used due to 12229 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 12230 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 12231 followup to PR #377. 12232 12233 *Lutz Jaenicke* 12234 12235 * IA-32 assembler support enhancements: unified ELF targets, support 12236 for SCO/Caldera platforms, fix for Cygwin shared build. 12237 12238 *Andy Polyakov* 12239 12240 * Add support for FreeBSD on sparc64. As a consequence, support for 12241 FreeBSD on non-x86 processors is separate from x86 processors on 12242 the config script, much like the NetBSD support. 12243 12244 *Richard Levitte & Kris Kennaway <kris@obsecurity.org>* 12245 12246### Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 12247 12248[NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 12249OpenSSL 0.9.7.] 12250 12251 * Fix session ID handling in SSLv2 client code: the SERVER FINISHED 12252 code (06) was taken as the first octet of the session ID and the last 12253 octet was ignored consequently. As a result SSLv2 client side session 12254 caching could not have worked due to the session ID mismatch between 12255 client and server. 12256 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 12257 PR #377. 12258 12259 *Lutz Jaenicke* 12260 12261 * Change the declaration of needed Kerberos libraries to use EX_LIBS 12262 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 12263 removed entirely. 12264 12265 *Richard Levitte* 12266 12267 * The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 12268 seems that in spite of existing for more than a year, many application 12269 author have done nothing to provide the necessary callbacks, which 12270 means that this particular engine will not work properly anywhere. 12271 This is a very unfortunate situation which forces us, in the name 12272 of usability, to give the hw_ncipher.c a static lock, which is part 12273 of libcrypto. 12274 NOTE: This is for the 0.9.7 series ONLY. This hack will never 12275 appear in 0.9.8 or later. We EXPECT application authors to have 12276 dealt properly with this when 0.9.8 is released (unless we actually 12277 make such changes in the libcrypto locking code that changes will 12278 have to be made anyway). 12279 12280 *Richard Levitte* 12281 12282 * In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 12283 octets have been read, EOF or an error occurs. Without this change 12284 some truncated ASN1 structures will not produce an error. 12285 12286 *Steve Henson* 12287 12288 * Disable Heimdal support, since it hasn't been fully implemented. 12289 Still give the possibility to force the use of Heimdal, but with 12290 warnings and a request that patches get sent to openssl-dev. 12291 12292 *Richard Levitte* 12293 12294 * Add the VC-CE target, introduce the WINCE sysname, and add 12295 INSTALL.WCE and appropriate conditionals to make it build. 12296 12297 *Steven Reddie <smr@essemer.com.au> via Richard Levitte* 12298 12299 * Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 12300 cygssl-x.y.z.dll, where x, y and z are the major, minor and 12301 edit numbers of the version. 12302 12303 *Corinna Vinschen <vinschen@redhat.com> and Richard Levitte* 12304 12305 * Introduce safe string copy and catenation functions 12306 (BUF_strlcpy() and BUF_strlcat()). 12307 12308 *Ben Laurie (CHATS) and Richard Levitte* 12309 12310 * Avoid using fixed-size buffers for one-line DNs. 12311 12312 *Ben Laurie (CHATS)* 12313 12314 * Add BUF_MEM_grow_clean() to avoid information leakage when 12315 resizing buffers containing secrets, and use where appropriate. 12316 12317 *Ben Laurie (CHATS)* 12318 12319 * Avoid using fixed size buffers for configuration file location. 12320 12321 *Ben Laurie (CHATS)* 12322 12323 * Avoid filename truncation for various CA files. 12324 12325 *Ben Laurie (CHATS)* 12326 12327 * Use sizeof in preference to magic numbers. 12328 12329 *Ben Laurie (CHATS)* 12330 12331 * Avoid filename truncation in cert requests. 12332 12333 *Ben Laurie (CHATS)* 12334 12335 * Add assertions to check for (supposedly impossible) buffer 12336 overflows. 12337 12338 *Ben Laurie (CHATS)* 12339 12340 * Don't cache truncated DNS entries in the local cache (this could 12341 potentially lead to a spoofing attack). 12342 12343 *Ben Laurie (CHATS)* 12344 12345 * Fix various buffers to be large enough for hex/decimal 12346 representations in a platform independent manner. 12347 12348 *Ben Laurie (CHATS)* 12349 12350 * Add CRYPTO_realloc_clean() to avoid information leakage when 12351 resizing buffers containing secrets, and use where appropriate. 12352 12353 *Ben Laurie (CHATS)* 12354 12355 * Add BIO_indent() to avoid much slightly worrying code to do 12356 indents. 12357 12358 *Ben Laurie (CHATS)* 12359 12360 * Convert sprintf()/BIO_puts() to BIO_printf(). 12361 12362 *Ben Laurie (CHATS)* 12363 12364 * buffer_gets() could terminate with the buffer only half 12365 full. Fixed. 12366 12367 *Ben Laurie (CHATS)* 12368 12369 * Add assertions to prevent user-supplied crypto functions from 12370 overflowing internal buffers by having large block sizes, etc. 12371 12372 *Ben Laurie (CHATS)* 12373 12374 * New OPENSSL_assert() macro (similar to assert(), but enabled 12375 unconditionally). 12376 12377 *Ben Laurie (CHATS)* 12378 12379 * Eliminate unused copy of key in RC4. 12380 12381 *Ben Laurie (CHATS)* 12382 12383 * Eliminate unused and incorrectly sized buffers for IV in pem.h. 12384 12385 *Ben Laurie (CHATS)* 12386 12387 * Fix off-by-one error in EGD path. 12388 12389 *Ben Laurie (CHATS)* 12390 12391 * If RANDFILE path is too long, ignore instead of truncating. 12392 12393 *Ben Laurie (CHATS)* 12394 12395 * Eliminate unused and incorrectly sized X.509 structure 12396 CBCParameter. 12397 12398 *Ben Laurie (CHATS)* 12399 12400 * Eliminate unused and dangerous function knumber(). 12401 12402 *Ben Laurie (CHATS)* 12403 12404 * Eliminate unused and dangerous structure, KSSL_ERR. 12405 12406 *Ben Laurie (CHATS)* 12407 12408 * Protect against overlong session ID context length in an encoded 12409 session object. Since these are local, this does not appear to be 12410 exploitable. 12411 12412 *Ben Laurie (CHATS)* 12413 12414 * Change from security patch (see 0.9.6e below) that did not affect 12415 the 0.9.6 release series: 12416 12417 Remote buffer overflow in SSL3 protocol - an attacker could 12418 supply an oversized master key in Kerberos-enabled versions. 12419 ([CVE-2002-0657]) 12420 12421 *Ben Laurie (CHATS)* 12422 12423 * Change the SSL kerb5 codes to match RFC 2712. 12424 12425 *Richard Levitte* 12426 12427 * Make -nameopt work fully for req and add -reqopt switch. 12428 12429 *Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson* 12430 12431 * The "block size" for block ciphers in CFB and OFB mode should be 1. 12432 12433 *Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>* 12434 12435 * Make sure tests can be performed even if the corresponding algorithms 12436 have been removed entirely. This was also the last step to make 12437 OpenSSL compilable with DJGPP under all reasonable conditions. 12438 12439 *Richard Levitte, Doug Kaufman <dkaufman@rahul.net>* 12440 12441 * Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 12442 to allow version independent disabling of normally unselected ciphers, 12443 which may be activated as a side-effect of selecting a single cipher. 12444 12445 (E.g., cipher list string "RSA" enables ciphersuites that are left 12446 out of "ALL" because they do not provide symmetric encryption. 12447 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 12448 12449 *Lutz Jaenicke, Bodo Moeller* 12450 12451 * Add appropriate support for separate platform-dependent build 12452 directories. The recommended way to make a platform-dependent 12453 build directory is the following (tested on Linux), maybe with 12454 some local tweaks: 12455 12456 # Place yourself outside of the OpenSSL source tree. In 12457 # this example, the environment variable OPENSSL_SOURCE 12458 # is assumed to contain the absolute OpenSSL source directory. 12459 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 12460 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 12461 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 12462 mkdir -p `dirname $F` 12463 ln -s $OPENSSL_SOURCE/$F $F 12464 done 12465 12466 To be absolutely sure not to disturb the source tree, a "make clean" 12467 is a good thing. If it isn't successful, don't worry about it, 12468 it probably means the source directory is very clean. 12469 12470 *Richard Levitte* 12471 12472 * Make sure any ENGINE control commands make local copies of string 12473 pointers passed to them whenever necessary. Otherwise it is possible 12474 the caller may have overwritten (or deallocated) the original string 12475 data when a later ENGINE operation tries to use the stored values. 12476 12477 *Götz Babin-Ebell <babinebell@trustcenter.de>* 12478 12479 * Improve diagnostics in file reading and command-line digests. 12480 12481 *Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>* 12482 12483 * Add AES modes CFB and OFB to the object database. Correct an 12484 error in AES-CFB decryption. 12485 12486 *Richard Levitte* 12487 12488 * Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 12489 allows existing EVP_CIPHER_CTX structures to be reused after 12490 calling `EVP_*Final()`. This behaviour is used by encryption 12491 BIOs and some applications. This has the side effect that 12492 applications must explicitly clean up cipher contexts with 12493 EVP_CIPHER_CTX_cleanup() or they will leak memory. 12494 12495 *Steve Henson* 12496 12497 * Check the values of dna and dnb in bn_mul_recursive before calling 12498 bn_mul_comba (a non zero value means the a or b arrays do not contain 12499 n2 elements) and fallback to bn_mul_normal if either is not zero. 12500 12501 *Steve Henson* 12502 12503 * Fix escaping of non-ASCII characters when using the -subj option 12504 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 12505 12506 *Lutz Jaenicke* 12507 12508 * Make object definitions compliant to LDAP (RFC2256): SN is the short 12509 form for "surname", serialNumber has no short form. 12510 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 12511 therefore remove "mail" short name for "internet 7". 12512 The OID for unique identifiers in X509 certificates is 12513 x500UniqueIdentifier, not uniqueIdentifier. 12514 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 12515 12516 *Lutz Jaenicke* 12517 12518 * Add an "init" command to the ENGINE config module and auto initialize 12519 ENGINEs. Without any "init" command the ENGINE will be initialized 12520 after all ctrl commands have been executed on it. If init=1 the 12521 ENGINE is initialized at that point (ctrls before that point are run 12522 on the uninitialized ENGINE and after on the initialized one). If 12523 init=0 then the ENGINE will not be initialized at all. 12524 12525 *Steve Henson* 12526 12527 * Fix the 'app_verify_callback' interface so that the user-defined 12528 argument is actually passed to the callback: In the 12529 SSL_CTX_set_cert_verify_callback() prototype, the callback 12530 declaration has been changed from 12531 int (*cb)() 12532 into 12533 int (*cb)(X509_STORE_CTX *,void *); 12534 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 12535 i=s->ctx->app_verify_callback(&ctx) 12536 has been changed into 12537 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 12538 12539 To update applications using SSL_CTX_set_cert_verify_callback(), 12540 a dummy argument can be added to their callback functions. 12541 12542 *D. K. Smetters <smetters@parc.xerox.com>* 12543 12544 * Added the '4758cca' ENGINE to support IBM 4758 cards. 12545 12546 *Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe* 12547 12548 * Add and OPENSSL_LOAD_CONF define which will cause 12549 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 12550 This allows older applications to transparently support certain 12551 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 12552 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 12553 load the config file and OPENSSL_add_all_algorithms_conf() which will 12554 always load it have also been added. 12555 12556 *Steve Henson* 12557 12558 * Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 12559 Adjust NIDs and EVP layer. 12560 12561 *Stephen Sprunk <stephen@sprunk.org> and Richard Levitte* 12562 12563 * Config modules support in openssl utility. 12564 12565 Most commands now load modules from the config file, 12566 though in a few (such as version) this isn't done 12567 because it couldn't be used for anything. 12568 12569 In the case of ca and req the config file used is 12570 the same as the utility itself: that is the -config 12571 command line option can be used to specify an 12572 alternative file. 12573 12574 *Steve Henson* 12575 12576 * Move default behaviour from OPENSSL_config(). If appname is NULL 12577 use "openssl_conf" if filename is NULL use default openssl config file. 12578 12579 *Steve Henson* 12580 12581 * Add an argument to OPENSSL_config() to allow the use of an alternative 12582 config section name. Add a new flag to tolerate a missing config file 12583 and move code to CONF_modules_load_file(). 12584 12585 *Steve Henson* 12586 12587 * Support for crypto accelerator cards from Accelerated Encryption 12588 Processing, www.aep.ie. (Use engine 'aep') 12589 The support was copied from 0.9.6c [engine] and adapted/corrected 12590 to work with the new engine framework. 12591 12592 *AEP Inc. and Richard Levitte* 12593 12594 * Support for SureWare crypto accelerator cards from Baltimore 12595 Technologies. (Use engine 'sureware') 12596 The support was copied from 0.9.6c [engine] and adapted 12597 to work with the new engine framework. 12598 12599 *Richard Levitte* 12600 12601 * Have the CHIL engine fork-safe (as defined by nCipher) and actually 12602 make the newer ENGINE framework commands for the CHIL engine work. 12603 12604 *Toomas Kiisk <vix@cyber.ee> and Richard Levitte* 12605 12606 * Make it possible to produce shared libraries on ReliantUNIX. 12607 12608 *Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte* 12609 12610 * Add the configuration target debug-linux-ppro. 12611 Make 'openssl rsa' use the general key loading routines 12612 implemented in `apps.c`, and make those routines able to 12613 handle the key format FORMAT_NETSCAPE and the variant 12614 FORMAT_IISSGC. 12615 12616 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 12617 12618 * Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 12619 12620 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 12621 12622 * Add -keyform to rsautl, and document -engine. 12623 12624 *Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>* 12625 12626 * Change BIO_new_file (crypto/bio/bss_file.c) to use new 12627 BIO_R_NO_SUCH_FILE error code rather than the generic 12628 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 12629 12630 *Ben Laurie* 12631 12632 * Add new functions 12633 ERR_peek_last_error 12634 ERR_peek_last_error_line 12635 ERR_peek_last_error_line_data. 12636 These are similar to 12637 ERR_peek_error 12638 ERR_peek_error_line 12639 ERR_peek_error_line_data, 12640 but report on the latest error recorded rather than the first one 12641 still in the error queue. 12642 12643 *Ben Laurie, Bodo Moeller* 12644 12645 * default_algorithms option in ENGINE config module. This allows things 12646 like: 12647 default_algorithms = ALL 12648 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 12649 12650 *Steve Henson* 12651 12652 * Preliminary ENGINE config module. 12653 12654 *Steve Henson* 12655 12656 * New experimental application configuration code. 12657 12658 *Steve Henson* 12659 12660 * Change the AES code to follow the same name structure as all other 12661 symmetric ciphers, and behave the same way. Move everything to 12662 the directory crypto/aes, thereby obsoleting crypto/rijndael. 12663 12664 *Stephen Sprunk <stephen@sprunk.org> and Richard Levitte* 12665 12666 * SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 12667 12668 *Ben Laurie and Theo de Raadt* 12669 12670 * Add option to output public keys in req command. 12671 12672 *Massimiliano Pala madwolf@openca.org* 12673 12674 * Use wNAFs in EC_POINTs_mul() for improved efficiency 12675 (up to about 10% better than before for P-192 and P-224). 12676 12677 *Bodo Moeller* 12678 12679 * New functions/macros 12680 12681 SSL_CTX_set_msg_callback(ctx, cb) 12682 SSL_CTX_set_msg_callback_arg(ctx, arg) 12683 SSL_set_msg_callback(ssl, cb) 12684 SSL_set_msg_callback_arg(ssl, arg) 12685 12686 to request calling a callback function 12687 12688 void cb(int write_p, int version, int content_type, 12689 const void *buf, size_t len, SSL *ssl, void *arg) 12690 12691 whenever a protocol message has been completely received 12692 (write_p == 0) or sent (write_p == 1). Here 'version' is the 12693 protocol version according to which the SSL library interprets 12694 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 12695 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 12696 the content type as defined in the SSL 3.0/TLS 1.0 protocol 12697 specification (change_cipher_spec(20), alert(21), handshake(22)). 12698 'buf' and 'len' point to the actual message, 'ssl' to the 12699 SSL object, and 'arg' is the application-defined value set by 12700 SSL[_CTX]_set_msg_callback_arg(). 12701 12702 'openssl s_client' and 'openssl s_server' have new '-msg' options 12703 to enable a callback that displays all protocol messages. 12704 12705 *Bodo Moeller* 12706 12707 * Change the shared library support so shared libraries are built as 12708 soon as the corresponding static library is finished, and thereby get 12709 openssl and the test programs linked against the shared library. 12710 This still only happens when the keyword "shard" has been given to 12711 the configuration scripts. 12712 12713 NOTE: shared library support is still an experimental thing, and 12714 backward binary compatibility is still not guaranteed. 12715 12716 *"Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte* 12717 12718 * Add support for Subject Information Access extension. 12719 12720 *Peter Sylvester <Peter.Sylvester@EdelWeb.fr>* 12721 12722 * Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 12723 additional bytes when new memory had to be allocated, not just 12724 when reusing an existing buffer. 12725 12726 *Bodo Moeller* 12727 12728 * New command line and configuration option 'utf8' for the req command. 12729 This allows field values to be specified as UTF8 strings. 12730 12731 *Steve Henson* 12732 12733 * Add -multi and -mr options to "openssl speed" - giving multiple parallel 12734 runs for the former and machine-readable output for the latter. 12735 12736 *Ben Laurie* 12737 12738 * Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 12739 of the e-mail address in the DN (i.e., it will go into a certificate 12740 extension only). The new configuration file option 'email_in_dn = no' 12741 has the same effect. 12742 12743 *Massimiliano Pala madwolf@openca.org* 12744 12745 * Change all functions with names starting with `des_` to be starting 12746 with `DES_` instead. Add wrappers that are compatible with libdes, 12747 but are named `_ossl_old_des_*`. Finally, add macros that map the 12748 `des_*` symbols to the corresponding `_ossl_old_des_*` if libdes 12749 compatibility is desired. If OpenSSL 0.9.6c compatibility is 12750 desired, the `des_*` symbols will be mapped to `DES_*`, with one 12751 exception. 12752 12753 Since we provide two compatibility mappings, the user needs to 12754 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 12755 compatibility is desired. The default (i.e., when that macro 12756 isn't defined) is OpenSSL 0.9.6c compatibility. 12757 12758 There are also macros that enable and disable the support of old 12759 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 12760 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 12761 are defined, the default will apply: to support the old des routines. 12762 12763 In either case, one must include openssl/des.h to get the correct 12764 definitions. Do not try to just include openssl/des_old.h, that 12765 won't work. 12766 12767 NOTE: This is a major break of an old API into a new one. Software 12768 authors are encouraged to switch to the `DES_` style functions. Some 12769 time in the future, des_old.h and the libdes compatibility functions 12770 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 12771 default), and then completely removed. 12772 12773 *Richard Levitte* 12774 12775 * Test for certificates which contain unsupported critical extensions. 12776 If such a certificate is found during a verify operation it is 12777 rejected by default: this behaviour can be overridden by either 12778 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 12779 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 12780 X509_supported_extension() has also been added which returns 1 if a 12781 particular extension is supported. 12782 12783 *Steve Henson* 12784 12785 * Modify the behaviour of EVP cipher functions in similar way to digests 12786 to retain compatibility with existing code. 12787 12788 *Steve Henson* 12789 12790 * Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 12791 compatibility with existing code. In particular the 'ctx' parameter does 12792 not have to be to be initialized before the call to EVP_DigestInit() and 12793 it is tidied up after a call to EVP_DigestFinal(). New function 12794 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 12795 EVP_MD_CTX_copy() changed to not require the destination to be 12796 initialized valid and new function EVP_MD_CTX_copy_ex() added which 12797 requires the destination to be valid. 12798 12799 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 12800 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 12801 12802 *Steve Henson* 12803 12804 * Change ssl3_get_message (ssl/s3_both.c) and the functions using it 12805 so that complete 'Handshake' protocol structures are kept in memory 12806 instead of overwriting 'msg_type' and 'length' with 'body' data. 12807 12808 *Bodo Moeller* 12809 12810 * Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 12811 12812 *Massimo Santin via Richard Levitte* 12813 12814 * Major restructuring to the underlying ENGINE code. This includes 12815 reduction of linker bloat, separation of pure "ENGINE" manipulation 12816 (initialisation, etc) from functionality dealing with implementations 12817 of specific crypto interfaces. This change also introduces integrated 12818 support for symmetric ciphers and digest implementations - so ENGINEs 12819 can now accelerate these by providing EVP_CIPHER and EVP_MD 12820 implementations of their own. This is detailed in 12821 [crypto/engine/README.md](crypto/engine/README.md) 12822 as it couldn't be adequately described here. However, there are a few 12823 API changes worth noting - some RSA, DSA, DH, and RAND functions that 12824 were changed in the original introduction of ENGINE code have now 12825 reverted back - the hooking from this code to ENGINE is now a good 12826 deal more passive and at run-time, operations deal directly with 12827 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 12828 dereferencing through an ENGINE pointer any more. Also, the ENGINE 12829 functions dealing with `BN_MOD_EXP[_CRT]` handlers have been removed - 12830 they were not being used by the framework as there is no concept of a 12831 BIGNUM_METHOD and they could not be generalised to the new 12832 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 12833 ENGINE_cpy() has been removed as it cannot be consistently defined in 12834 the new code. 12835 12836 *Geoff Thorpe* 12837 12838 * Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 12839 12840 *Steve Henson* 12841 12842 * Change mkdef.pl to sort symbols that get the same entry number, 12843 and make sure the automatically generated functions `ERR_load_*` 12844 become part of libeay.num as well. 12845 12846 *Richard Levitte* 12847 12848 * New function SSL_renegotiate_pending(). This returns true once 12849 renegotiation has been requested (either SSL_renegotiate() call 12850 or HelloRequest/ClientHello received from the peer) and becomes 12851 false once a handshake has been completed. 12852 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 12853 sends a HelloRequest, but does not ensure that a handshake takes 12854 place. SSL_renegotiate_pending() is useful for checking if the 12855 client has followed the request.) 12856 12857 *Bodo Moeller* 12858 12859 * New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 12860 By default, clients may request session resumption even during 12861 renegotiation (if session ID contexts permit); with this option, 12862 session resumption is possible only in the first handshake. 12863 12864 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 12865 more bits available for options that should not be part of 12866 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 12867 12868 *Bodo Moeller* 12869 12870 * Add some demos for certificate and certificate request creation. 12871 12872 *Steve Henson* 12873 12874 * Make maximum certificate chain size accepted from the peer application 12875 settable (`SSL*_get/set_max_cert_list()`), as proposed by 12876 "Douglas E. Engert" <deengert@anl.gov>. 12877 12878 *Lutz Jaenicke* 12879 12880 * Add support for shared libraries for Unixware-7 12881 (Boyd Lynn Gerber <gerberb@zenez.com>). 12882 12883 *Lutz Jaenicke* 12884 12885 * Add a "destroy" handler to ENGINEs that allows structural cleanup to 12886 be done prior to destruction. Use this to unload error strings from 12887 ENGINEs that load their own error strings. NB: This adds two new API 12888 functions to "get" and "set" this destroy handler in an ENGINE. 12889 12890 *Geoff Thorpe* 12891 12892 * Alter all existing ENGINE implementations (except "openssl" and 12893 "openbsd") to dynamically instantiate their own error strings. This 12894 makes them more flexible to be built both as statically-linked ENGINEs 12895 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 12896 Also, add stub code to each that makes building them as self-contained 12897 shared-libraries easier (see [README-Engine.md](README-Engine.md)). 12898 12899 *Geoff Thorpe* 12900 12901 * Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 12902 implementations into applications that are completely implemented in 12903 self-contained shared-libraries. The "dynamic" ENGINE exposes control 12904 commands that can be used to configure what shared-library to load and 12905 to control aspects of the way it is handled. Also, made an update to 12906 the [README-Engine.md](README-Engine.md) file 12907 that brings its information up-to-date and 12908 provides some information and instructions on the "dynamic" ENGINE 12909 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 12910 12911 *Geoff Thorpe* 12912 12913 * Make it possible to unload ranges of ERR strings with a new 12914 "ERR_unload_strings" function. 12915 12916 *Geoff Thorpe* 12917 12918 * Add a copy() function to EVP_MD. 12919 12920 *Ben Laurie* 12921 12922 * Make EVP_MD routines take a context pointer instead of just the 12923 md_data void pointer. 12924 12925 *Ben Laurie* 12926 12927 * Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 12928 that the digest can only process a single chunk of data 12929 (typically because it is provided by a piece of 12930 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 12931 is only going to provide a single chunk of data, and hence the 12932 framework needn't accumulate the data for oneshot drivers. 12933 12934 *Ben Laurie* 12935 12936 * As with "ERR", make it possible to replace the underlying "ex_data" 12937 functions. This change also alters the storage and management of global 12938 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 12939 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 12940 index counters. The API functions that use this state have been changed 12941 to take a "class_index" rather than pointers to the class's local STACK 12942 and counter, and there is now an API function to dynamically create new 12943 classes. This centralisation allows us to (a) plug a lot of the 12944 thread-safety problems that existed, and (b) makes it possible to clean 12945 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 12946 such data would previously have always leaked in application code and 12947 workarounds were in place to make the memory debugging turn a blind eye 12948 to it. Application code that doesn't use this new function will still 12949 leak as before, but their memory debugging output will announce it now 12950 rather than letting it slide. 12951 12952 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 12953 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 12954 has a return value to indicate success or failure. 12955 12956 *Geoff Thorpe* 12957 12958 * Make it possible to replace the underlying "ERR" functions such that the 12959 global state (2 LHASH tables and 2 locks) is only used by the "default" 12960 implementation. This change also adds two functions to "get" and "set" 12961 the implementation prior to it being automatically set the first time 12962 any other ERR function takes place. Ie. an application can call "get", 12963 pass the return value to a module it has just loaded, and that module 12964 can call its own "set" function using that value. This means the 12965 module's "ERR" operations will use (and modify) the error state in the 12966 application and not in its own statically linked copy of OpenSSL code. 12967 12968 *Geoff Thorpe* 12969 12970 * Give DH, DSA, and RSA types their own `*_up_ref()` function to increment 12971 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 12972 the operation, and provides a more encapsulated way for external code 12973 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 12974 to use these functions rather than manually incrementing the counts. 12975 12976 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 12977 12978 *Geoff Thorpe* 12979 12980 * Add EVP test program. 12981 12982 *Ben Laurie* 12983 12984 * Add symmetric cipher support to ENGINE. Expect the API to change! 12985 12986 *Ben Laurie* 12987 12988 * New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 12989 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 12990 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 12991 These allow a CRL to be built without having to access X509_CRL fields 12992 directly. Modify 'ca' application to use new functions. 12993 12994 *Steve Henson* 12995 12996 * Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 12997 bug workarounds. Rollback attack detection is a security feature. 12998 The problem will only arise on OpenSSL servers when TLSv1 is not 12999 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 13000 Software authors not wanting to support TLSv1 will have special reasons 13001 for their choice and can explicitly enable this option. 13002 13003 *Bodo Moeller, Lutz Jaenicke* 13004 13005 * Rationalise EVP so it can be extended: don't include a union of 13006 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 13007 (similar to those existing for EVP_CIPHER_CTX). 13008 Usage example: 13009 13010 EVP_MD_CTX md; 13011 13012 EVP_MD_CTX_init(&md); /* new function call */ 13013 EVP_DigestInit(&md, EVP_sha1()); 13014 EVP_DigestUpdate(&md, in, len); 13015 EVP_DigestFinal(&md, out, NULL); 13016 EVP_MD_CTX_cleanup(&md); /* new function call */ 13017 13018 *Ben Laurie* 13019 13020 * Make DES key schedule conform to the usual scheme, as well as 13021 correcting its structure. This means that calls to DES functions 13022 now have to pass a pointer to a des_key_schedule instead of a 13023 plain des_key_schedule (which was actually always a pointer 13024 anyway): E.g., 13025 13026 des_key_schedule ks; 13027 13028 des_set_key_checked(..., &ks); 13029 des_ncbc_encrypt(..., &ks, ...); 13030 13031 (Note that a later change renames 'des_...' into 'DES_...'.) 13032 13033 *Ben Laurie* 13034 13035 * Initial reduction of linker bloat: the use of some functions, such as 13036 PEM causes large amounts of unused functions to be linked in due to 13037 poor organisation. For example pem_all.c contains every PEM function 13038 which has a knock on effect of linking in large amounts of (unused) 13039 ASN1 code. Grouping together similar functions and splitting unrelated 13040 functions prevents this. 13041 13042 *Steve Henson* 13043 13044 * Cleanup of EVP macros. 13045 13046 *Ben Laurie* 13047 13048 * Change historical references to `{NID,SN,LN}_des_ede` and ede3 to add the 13049 correct `_ecb suffix`. 13050 13051 *Ben Laurie* 13052 13053 * Add initial OCSP responder support to ocsp application. The 13054 revocation information is handled using the text based index 13055 use by the ca application. The responder can either handle 13056 requests generated internally, supplied in files (for example 13057 via a CGI script) or using an internal minimal server. 13058 13059 *Steve Henson* 13060 13061 * Add configuration choices to get zlib compression for TLS. 13062 13063 *Richard Levitte* 13064 13065 * Changes to Kerberos SSL for RFC 2712 compliance: 13066 1. Implemented real KerberosWrapper, instead of just using 13067 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 13068 2. Implemented optional authenticator field of KerberosWrapper. 13069 13070 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 13071 and authenticator structs; see crypto/krb5/. 13072 13073 Generalized Kerberos calls to support multiple Kerberos libraries. 13074 *Vern Staats <staatsvr@asc.hpc.mil>, Jeffrey Altman <jaltman@columbia.edu> 13075 via Richard Levitte* 13076 13077 * Cause 'openssl speed' to use fully hard-coded DSA keys as it 13078 already does with RSA. testdsa.h now has 'priv_key/pub_key' 13079 values for each of the key sizes rather than having just 13080 parameters (and 'speed' generating keys each time). 13081 13082 *Geoff Thorpe* 13083 13084 * Speed up EVP routines. 13085 Before: 13086crypt 13087pe 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 13088s-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 13089s-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 13090s-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 13091crypt 13092s-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 13093s-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 13094s-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 13095 After: 13096crypt 13097s-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 13098crypt 13099s-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 13100 13101 *Ben Laurie* 13102 13103 * Added the OS2-EMX target. 13104 13105 *"Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte* 13106 13107 * Rewrite commands to use `NCONF` routines instead of the old `CONF`. 13108 New functions to support `NCONF` routines in extension code. 13109 New function `CONF_set_nconf()` 13110 to allow functions which take an `NCONF` to also handle the old `LHASH` 13111 structure: this means that the old `CONF` compatible routines can be 13112 retained (in particular w.rt. extensions) without having to duplicate the 13113 code. New function `X509V3_add_ext_nconf_sk()` to add extensions to a stack. 13114 13115 *Steve Henson* 13116 13117 * Enhance the general user interface with mechanisms for inner control 13118 and with possibilities to have yes/no kind of prompts. 13119 13120 *Richard Levitte* 13121 13122 * Change all calls to low-level digest routines in the library and 13123 applications to use EVP. Add missing calls to HMAC_cleanup() and 13124 don't assume HMAC_CTX can be copied using memcpy(). 13125 13126 *Verdon Walker <VWalker@novell.com>, Steve Henson* 13127 13128 * Add the possibility to control engines through control names but with 13129 arbitrary arguments instead of just a string. 13130 Change the key loaders to take a UI_METHOD instead of a callback 13131 function pointer. NOTE: this breaks binary compatibility with earlier 13132 versions of OpenSSL [engine]. 13133 Adapt the nCipher code for these new conditions and add a card insertion 13134 callback. 13135 13136 *Richard Levitte* 13137 13138 * Enhance the general user interface with mechanisms to better support 13139 dialog box interfaces, application-defined prompts, the possibility 13140 to use defaults (for example default passwords from somewhere else) 13141 and interrupts/cancellations. 13142 13143 *Richard Levitte* 13144 13145 * Tidy up PKCS#12 attribute handling. Add support for the CSP name 13146 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 13147 13148 *Steve Henson* 13149 13150 * Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 13151 tidy up some unnecessarily weird code in 'sk_new()'). 13152 13153 *Geoff, reported by Diego Tartara <dtartara@novamens.com>* 13154 13155 * Change the key loading routines for ENGINEs to use the same kind 13156 callback (pem_password_cb) as all other routines that need this 13157 kind of callback. 13158 13159 *Richard Levitte* 13160 13161 * Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 13162 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 13163 than this minimum value is recommended. 13164 13165 *Lutz Jaenicke* 13166 13167 * New random seeder for OpenVMS, using the system process statistics 13168 that are easily reachable. 13169 13170 *Richard Levitte* 13171 13172 * Windows apparently can't transparently handle global 13173 variables defined in DLLs. Initialisations such as: 13174 13175 const ASN1_ITEM *it = &ASN1_INTEGER_it; 13176 13177 won't compile. This is used by the any applications that need to 13178 declare their own ASN1 modules. This was fixed by adding the option 13179 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 13180 needed for static libraries under Win32. 13181 13182 *Steve Henson* 13183 13184 * New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 13185 setting of purpose and trust fields. New X509_STORE trust and 13186 purpose functions and tidy up setting in other SSL functions. 13187 13188 *Steve Henson* 13189 13190 * Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 13191 structure. These are inherited by X509_STORE_CTX when it is 13192 initialised. This allows various defaults to be set in the 13193 X509_STORE structure (such as flags for CRL checking and custom 13194 purpose or trust settings) for functions which only use X509_STORE_CTX 13195 internally such as S/MIME. 13196 13197 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 13198 trust settings if they are not set in X509_STORE. This allows X509_STORE 13199 purposes and trust (in S/MIME for example) to override any set by default. 13200 13201 Add command line options for CRL checking to smime, s_client and s_server 13202 applications. 13203 13204 *Steve Henson* 13205 13206 * Initial CRL based revocation checking. If the CRL checking flag(s) 13207 are set then the CRL is looked up in the X509_STORE structure and 13208 its validity and signature checked, then if the certificate is found 13209 in the CRL the verify fails with a revoked error. 13210 13211 Various new CRL related callbacks added to X509_STORE_CTX structure. 13212 13213 Command line options added to 'verify' application to support this. 13214 13215 This needs some additional work, such as being able to handle multiple 13216 CRLs with different times, extension based lookup (rather than just 13217 by subject name) and ultimately more complete V2 CRL extension 13218 handling. 13219 13220 *Steve Henson* 13221 13222 * Add a general user interface API (crypto/ui/). This is designed 13223 to replace things like des_read_password and friends (backward 13224 compatibility functions using this new API are provided). 13225 The purpose is to remove prompting functions from the DES code 13226 section as well as provide for prompting through dialog boxes in 13227 a window system and the like. 13228 13229 *Richard Levitte* 13230 13231 * Add "ex_data" support to ENGINE so implementations can add state at a 13232 per-structure level rather than having to store it globally. 13233 13234 *Geoff* 13235 13236 * Make it possible for ENGINE structures to be copied when retrieved by 13237 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 13238 This causes the "original" ENGINE structure to act like a template, 13239 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 13240 operational state can be localised to each ENGINE structure, despite the 13241 fact they all share the same "methods". New ENGINE structures returned in 13242 this case have no functional references and the return value is the single 13243 structural reference. This matches the single structural reference returned 13244 by ENGINE_by_id() normally, when it is incremented on the pre-existing 13245 ENGINE structure. 13246 13247 *Geoff* 13248 13249 * Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 13250 needs to match any other type at all we need to manually clear the 13251 tag cache. 13252 13253 *Steve Henson* 13254 13255 * Changes to the "openssl engine" utility to include; 13256 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 13257 about an ENGINE's available control commands. 13258 - executing control commands from command line arguments using the 13259 '-pre' and '-post' switches. '-post' is only used if '-t' is 13260 specified and the ENGINE is successfully initialised. The syntax for 13261 the individual commands are colon-separated, for example; 13262 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 13263 13264 *Geoff* 13265 13266 * New dynamic control command support for ENGINEs. ENGINEs can now 13267 declare their own commands (numbers), names (strings), descriptions, 13268 and input types for run-time discovery by calling applications. A 13269 subset of these commands are implicitly classed as "executable" 13270 depending on their input type, and only these can be invoked through 13271 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 13272 can be based on user input, config files, etc). The distinction is 13273 that "executable" commands cannot return anything other than a boolean 13274 result and can only support numeric or string input, whereas some 13275 discoverable commands may only be for direct use through 13276 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 13277 pointers, or other custom uses. The "executable" commands are to 13278 support parameterisations of ENGINE behaviour that can be 13279 unambiguously defined by ENGINEs and used consistently across any 13280 OpenSSL-based application. Commands have been added to all the 13281 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 13282 control over shared-library paths without source code alterations. 13283 13284 *Geoff* 13285 13286 * Changed all ENGINE implementations to dynamically allocate their 13287 ENGINEs rather than declaring them statically. Apart from this being 13288 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 13289 this also allows the implementations to compile without using the 13290 internal engine_int.h header. 13291 13292 *Geoff* 13293 13294 * Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 13295 'const' value. Any code that should be able to modify a RAND_METHOD 13296 should already have non-const pointers to it (ie. they should only 13297 modify their own ones). 13298 13299 *Geoff* 13300 13301 * Made a variety of little tweaks to the ENGINE code. 13302 - "atalla" and "ubsec" string definitions were moved from header files 13303 to C code. "nuron" string definitions were placed in variables 13304 rather than hard-coded - allowing parameterisation of these values 13305 later on via ctrl() commands. 13306 - Removed unused "#if 0"'d code. 13307 - Fixed engine list iteration code so it uses ENGINE_free() to release 13308 structural references. 13309 - Constified the RAND_METHOD element of ENGINE structures. 13310 - Constified various get/set functions as appropriate and added 13311 missing functions (including a catch-all ENGINE_cpy that duplicates 13312 all ENGINE values onto a new ENGINE except reference counts/state). 13313 - Removed NULL parameter checks in get/set functions. Setting a method 13314 or function to NULL is a way of cancelling out a previously set 13315 value. Passing a NULL ENGINE parameter is just plain stupid anyway 13316 and doesn't justify the extra error symbols and code. 13317 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 13318 flags from engine_int.h to engine.h. 13319 - Changed prototypes for ENGINE handler functions (init(), finish(), 13320 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 13321 13322 *Geoff* 13323 13324 * Implement binary inversion algorithm for BN_mod_inverse in addition 13325 to the algorithm using long division. The binary algorithm can be 13326 used only if the modulus is odd. On 32-bit systems, it is faster 13327 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 13328 roughly 5-15% for 256-bit moduli), so we use it only for moduli 13329 up to 450 bits. In 64-bit environments, the binary algorithm 13330 appears to be advantageous for much longer moduli; here we use it 13331 for moduli up to 2048 bits. 13332 13333 *Bodo Moeller* 13334 13335 * Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 13336 could not support the combine flag in choice fields. 13337 13338 *Steve Henson* 13339 13340 * Add a 'copy_extensions' option to the 'ca' utility. This copies 13341 extensions from a certificate request to the certificate. 13342 13343 *Steve Henson* 13344 13345 * Allow multiple 'certopt' and 'nameopt' options to be separated 13346 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 13347 file: this allows the display of the certificate about to be 13348 signed to be customised, to allow certain fields to be included 13349 or excluded and extension details. The old system didn't display 13350 multicharacter strings properly, omitted fields not in the policy 13351 and couldn't display additional details such as extensions. 13352 13353 *Steve Henson* 13354 13355 * Function EC_POINTs_mul for multiple scalar multiplication 13356 of an arbitrary number of elliptic curve points 13357 \sum scalars[i]*points[i], 13358 optionally including the generator defined for the EC_GROUP: 13359 scalar*generator + \sum scalars[i]*points[i]. 13360 13361 EC_POINT_mul is a simple wrapper function for the typical case 13362 that the point list has just one item (besides the optional 13363 generator). 13364 13365 *Bodo Moeller* 13366 13367 * First EC_METHODs for curves over GF(p): 13368 13369 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 13370 operations and provides various method functions that can also 13371 operate with faster implementations of modular arithmetic. 13372 13373 EC_GFp_mont_method() reuses most functions that are part of 13374 EC_GFp_simple_method, but uses Montgomery arithmetic. 13375 13376 *Bodo Moeller; point addition and point doubling 13377 implementation directly derived from source code provided by 13378 Lenka Fibikova <fibikova@exp-math.uni-essen.de>* 13379 13380 * Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 13381 crypto/ec/ec_lib.c): 13382 13383 Curves are EC_GROUP objects (with an optional group generator) 13384 based on EC_METHODs that are built into the library. 13385 13386 Points are EC_POINT objects based on EC_GROUP objects. 13387 13388 Most of the framework would be able to handle curves over arbitrary 13389 finite fields, but as there are no obvious types for fields other 13390 than GF(p), some functions are limited to that for now. 13391 13392 *Bodo Moeller* 13393 13394 * Add the -HTTP option to s_server. It is similar to -WWW, but requires 13395 that the file contains a complete HTTP response. 13396 13397 *Richard Levitte* 13398 13399 * Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 13400 change the def and num file printf format specifier from "%-40sXXX" 13401 to "%-39s XXX". The latter will always guarantee a space after the 13402 field while the former will cause them to run together if the field 13403 is 40 of more characters long. 13404 13405 *Steve Henson* 13406 13407 * Constify the cipher and digest 'method' functions and structures 13408 and modify related functions to take constant EVP_MD and EVP_CIPHER 13409 pointers. 13410 13411 *Steve Henson* 13412 13413 * Hide BN_CTX structure details in bn_lcl.h instead of publishing them 13414 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 13415 13416 *Bodo Moeller* 13417 13418 * Modify `EVP_Digest*()` routines so they now return values. Although the 13419 internal software routines can never fail additional hardware versions 13420 might. 13421 13422 *Steve Henson* 13423 13424 * Clean up crypto/err/err.h and change some error codes to avoid conflicts: 13425 13426 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 13427 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 13428 13429 ASN1 error codes 13430 ERR_R_NESTED_ASN1_ERROR 13431 ... 13432 ERR_R_MISSING_ASN1_EOS 13433 were 4 .. 9, conflicting with 13434 ERR_LIB_RSA (= ERR_R_RSA_LIB) 13435 ... 13436 ERR_LIB_PEM (= ERR_R_PEM_LIB). 13437 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 13438 13439 Add new error code 'ERR_R_INTERNAL_ERROR'. 13440 13441 *Bodo Moeller* 13442 13443 * Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 13444 suffices. 13445 13446 *Bodo Moeller* 13447 13448 * New option '-subj arg' for 'openssl req' and 'openssl ca'. This 13449 sets the subject name for a new request or supersedes the 13450 subject name in a given request. Formats that can be parsed are 13451 'CN=Some Name, OU=myOU, C=IT' 13452 and 13453 'CN=Some Name/OU=myOU/C=IT'. 13454 13455 Add options '-batch' and '-verbose' to 'openssl req'. 13456 13457 *Massimiliano Pala <madwolf@hackmasters.net>* 13458 13459 * Introduce the possibility to access global variables through 13460 functions on platform were that's the best way to handle exporting 13461 global variables in shared libraries. To enable this functionality, 13462 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 13463 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 13464 is normally done by Configure or something similar). 13465 13466 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 13467 in the source file (foo.c) like this: 13468 13469 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 13470 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 13471 13472 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 13473 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 13474 13475 OPENSSL_DECLARE_GLOBAL(int,foo); 13476 #define foo OPENSSL_GLOBAL_REF(foo) 13477 OPENSSL_DECLARE_GLOBAL(double,bar); 13478 #define bar OPENSSL_GLOBAL_REF(bar) 13479 13480 The #defines are very important, and therefore so is including the 13481 header file everywhere where the defined globals are used. 13482 13483 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 13484 of ASN.1 items, but that structure is a bit different. 13485 13486 The largest change is in util/mkdef.pl which has been enhanced with 13487 better and easier to understand logic to choose which symbols should 13488 go into the Windows .def files as well as a number of fixes and code 13489 cleanup (among others, algorithm keywords are now sorted 13490 lexicographically to avoid constant rewrites). 13491 13492 *Richard Levitte* 13493 13494 * In BN_div() keep a copy of the sign of 'num' before writing the 13495 result to 'rm' because if rm==num the value will be overwritten 13496 and produce the wrong result if 'num' is negative: this caused 13497 problems with BN_mod() and BN_nnmod(). 13498 13499 *Steve Henson* 13500 13501 * Function OCSP_request_verify(). This checks the signature on an 13502 OCSP request and verifies the signer certificate. The signer 13503 certificate is just checked for a generic purpose and OCSP request 13504 trust settings. 13505 13506 *Steve Henson* 13507 13508 * Add OCSP_check_validity() function to check the validity of OCSP 13509 responses. OCSP responses are prepared in real time and may only 13510 be a few seconds old. Simply checking that the current time lies 13511 between thisUpdate and nextUpdate max reject otherwise valid responses 13512 caused by either OCSP responder or client clock inaccuracy. Instead 13513 we allow thisUpdate and nextUpdate to fall within a certain period of 13514 the current time. The age of the response can also optionally be 13515 checked. Two new options -validity_period and -status_age added to 13516 ocsp utility. 13517 13518 *Steve Henson* 13519 13520 * If signature or public key algorithm is unrecognized print out its 13521 OID rather that just UNKNOWN. 13522 13523 *Steve Henson* 13524 13525 * Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 13526 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 13527 ID to be generated from the issuer certificate alone which can then be 13528 passed to OCSP_id_issuer_cmp(). 13529 13530 *Steve Henson* 13531 13532 * New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 13533 ASN1 modules to export functions returning ASN1_ITEM pointers 13534 instead of the ASN1_ITEM structures themselves. This adds several 13535 new macros which allow the underlying ASN1 function/structure to 13536 be accessed transparently. As a result code should not use ASN1_ITEM 13537 references directly (such as &X509_it) but instead use the relevant 13538 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 13539 use of the new ASN1 code on platforms where exporting structures 13540 is problematical (for example in shared libraries) but exporting 13541 functions returning pointers to structures is not. 13542 13543 *Steve Henson* 13544 13545 * Add support for overriding the generation of SSL/TLS session IDs. 13546 These callbacks can be registered either in an SSL_CTX or per SSL. 13547 The purpose of this is to allow applications to control, if they wish, 13548 the arbitrary values chosen for use as session IDs, particularly as it 13549 can be useful for session caching in multiple-server environments. A 13550 command-line switch for testing this (and any client code that wishes 13551 to use such a feature) has been added to "s_server". 13552 13553 *Geoff Thorpe, Lutz Jaenicke* 13554 13555 * Modify mkdef.pl to recognise and parse preprocessor conditionals 13556 of the form `#if defined(...) || defined(...) || ...` and 13557 `#if !defined(...) && !defined(...) && ...`. This also avoids 13558 the growing number of special cases it was previously handling. 13559 13560 *Richard Levitte* 13561 13562 * Make all configuration macros available for application by making 13563 sure they are available in opensslconf.h, by giving them names starting 13564 with `OPENSSL_` to avoid conflicts with other packages and by making 13565 sure e_os2.h will cover all platform-specific cases together with 13566 opensslconf.h. 13567 Additionally, it is now possible to define configuration/platform- 13568 specific names (called "system identities"). In the C code, these 13569 are prefixed with `OPENSSL_SYSNAME_`. e_os2.h will create another 13570 macro with the name beginning with `OPENSSL_SYS_`, which is determined 13571 from `OPENSSL_SYSNAME_*` or compiler-specific macros depending on 13572 what is available. 13573 13574 *Richard Levitte* 13575 13576 * New option -set_serial to 'req' and 'x509' this allows the serial 13577 number to use to be specified on the command line. Previously self 13578 signed certificates were hard coded with serial number 0 and the 13579 CA options of 'x509' had to use a serial number in a file which was 13580 auto incremented. 13581 13582 *Steve Henson* 13583 13584 * New options to 'ca' utility to support V2 CRL entry extensions. 13585 Currently CRL reason, invalidity date and hold instruction are 13586 supported. Add new CRL extensions to V3 code and some new objects. 13587 13588 *Steve Henson* 13589 13590 * New function EVP_CIPHER_CTX_set_padding() this is used to 13591 disable standard block padding (aka PKCS#5 padding) in the EVP 13592 API, which was previously mandatory. This means that the data is 13593 not padded in any way and so the total length much be a multiple 13594 of the block size, otherwise an error occurs. 13595 13596 *Steve Henson* 13597 13598 * Initial (incomplete) OCSP SSL support. 13599 13600 *Steve Henson* 13601 13602 * New function OCSP_parse_url(). This splits up a URL into its host, 13603 port and path components: primarily to parse OCSP URLs. New -url 13604 option to ocsp utility. 13605 13606 *Steve Henson* 13607 13608 * New nonce behavior. The return value of OCSP_check_nonce() now 13609 reflects the various checks performed. Applications can decide 13610 whether to tolerate certain situations such as an absent nonce 13611 in a response when one was present in a request: the ocsp application 13612 just prints out a warning. New function OCSP_add1_basic_nonce() 13613 this is to allow responders to include a nonce in a response even if 13614 the request is nonce-less. 13615 13616 *Steve Henson* 13617 13618 * Disable stdin buffering in `load_cert()` (`apps/apps.c`) so that no certs are 13619 skipped when using openssl x509 multiple times on a single input file, 13620 e.g. `(openssl x509 -out cert1; openssl x509 -out cert2) <certs`. 13621 13622 *Bodo Moeller* 13623 13624 * Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 13625 set string type: to handle setting ASN1_TIME structures. Fix ca 13626 utility to correctly initialize revocation date of CRLs. 13627 13628 *Steve Henson* 13629 13630 * New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 13631 the clients preferred ciphersuites and rather use its own preferences. 13632 Should help to work around M$ SGC (Server Gated Cryptography) bug in 13633 Internet Explorer by ensuring unchanged hash method during stepup. 13634 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 13635 13636 *Lutz Jaenicke* 13637 13638 * Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 13639 to aes and add a new 'exist' option to print out symbols that don't 13640 appear to exist. 13641 13642 *Steve Henson* 13643 13644 * Additional options to ocsp utility to allow flags to be set and 13645 additional certificates supplied. 13646 13647 *Steve Henson* 13648 13649 * Add the option -VAfile to 'openssl ocsp', so the user can give the 13650 OCSP client a number of certificate to only verify the response 13651 signature against. 13652 13653 *Richard Levitte* 13654 13655 * Update Rijndael code to version 3.0 and change EVP AES ciphers to 13656 handle the new API. Currently only ECB, CBC modes supported. Add new 13657 AES OIDs. 13658 13659 Add TLS AES ciphersuites as described in RFC3268, "Advanced 13660 Encryption Standard (AES) Ciphersuites for Transport Layer 13661 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 13662 not enabled by default and were not part of the "ALL" ciphersuite 13663 alias because they were not yet official; they could be 13664 explicitly requested by specifying the "AESdraft" ciphersuite 13665 group alias. In the final release of OpenSSL 0.9.7, the group 13666 alias is called "AES" and is part of "ALL".) 13667 13668 *Ben Laurie, Steve Henson, Bodo Moeller* 13669 13670 * New function OCSP_copy_nonce() to copy nonce value (if present) from 13671 request to response. 13672 13673 *Steve Henson* 13674 13675 * Functions for OCSP responders. OCSP_request_onereq_count(), 13676 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 13677 extract information from a certificate request. OCSP_response_create() 13678 creates a response and optionally adds a basic response structure. 13679 OCSP_basic_add1_status() adds a complete single response to a basic 13680 response and returns the OCSP_SINGLERESP structure just added (to allow 13681 extensions to be included for example). OCSP_basic_add1_cert() adds a 13682 certificate to a basic response and OCSP_basic_sign() signs a basic 13683 response with various flags. New helper functions ASN1_TIME_check() 13684 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 13685 (converts ASN1_TIME to GeneralizedTime). 13686 13687 *Steve Henson* 13688 13689 * Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 13690 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 13691 structure from a certificate. X509_pubkey_digest() digests the public_key 13692 contents: this is used in various key identifiers. 13693 13694 *Steve Henson* 13695 13696 * Make sk_sort() tolerate a NULL argument. 13697 13698 *Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>* 13699 13700 * New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 13701 passed by the function are trusted implicitly. If any of them signed the 13702 response then it is assumed to be valid and is not verified. 13703 13704 *Steve Henson* 13705 13706 * In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 13707 to data. This was previously part of the PKCS7 ASN1 code. This 13708 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 13709 *Steve Henson, reported by Kenneth R. Robinette 13710 <support@securenetterm.com>* 13711 13712 * Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 13713 routines: without these tracing memory leaks is very painful. 13714 Fix leaks in PKCS12 and PKCS7 routines. 13715 13716 *Steve Henson* 13717 13718 * Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 13719 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 13720 effectively meant GeneralizedTime would never be used. Now it 13721 is initialised to -1 but X509_time_adj() now has to check the value 13722 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 13723 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 13724 *Steve Henson, reported by Kenneth R. Robinette 13725 <support@securenetterm.com>* 13726 13727 * Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 13728 result in a zero length in the ASN1_INTEGER structure which was 13729 not consistent with the structure when d2i_ASN1_INTEGER() was used 13730 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 13731 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 13732 where it did not print out a minus for negative ASN1_INTEGER. 13733 13734 *Steve Henson* 13735 13736 * Add summary printout to ocsp utility. The various functions which 13737 convert status values to strings have been renamed to: 13738 OCSP_response_status_str(), OCSP_cert_status_str() and 13739 OCSP_crl_reason_str() and are no longer static. New options 13740 to verify nonce values and to disable verification. OCSP response 13741 printout format cleaned up. 13742 13743 *Steve Henson* 13744 13745 * Add additional OCSP certificate checks. These are those specified 13746 in RFC2560. This consists of two separate checks: the CA of the 13747 certificate being checked must either be the OCSP signer certificate 13748 or the issuer of the OCSP signer certificate. In the latter case the 13749 OCSP signer certificate must contain the OCSP signing extended key 13750 usage. This check is performed by attempting to match the OCSP 13751 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 13752 in the OCSP_CERTID structures of the response. 13753 13754 *Steve Henson* 13755 13756 * Initial OCSP certificate verification added to OCSP_basic_verify() 13757 and related routines. This uses the standard OpenSSL certificate 13758 verify routines to perform initial checks (just CA validity) and 13759 to obtain the certificate chain. Then additional checks will be 13760 performed on the chain. Currently the root CA is checked to see 13761 if it is explicitly trusted for OCSP signing. This is used to set 13762 a root CA as a global signing root: that is any certificate that 13763 chains to that CA is an acceptable OCSP signing certificate. 13764 13765 *Steve Henson* 13766 13767 * New '-extfile ...' option to 'openssl ca' for reading X.509v3 13768 extensions from a separate configuration file. 13769 As when reading extensions from the main configuration file, 13770 the '-extensions ...' option may be used for specifying the 13771 section to use. 13772 13773 *Massimiliano Pala <madwolf@comune.modena.it>* 13774 13775 * New OCSP utility. Allows OCSP requests to be generated or 13776 read. The request can be sent to a responder and the output 13777 parsed, outputted or printed in text form. Not complete yet: 13778 still needs to check the OCSP response validity. 13779 13780 *Steve Henson* 13781 13782 * New subcommands for 'openssl ca': 13783 `openssl ca -status <serial>` prints the status of the cert with 13784 the given serial number (according to the index file). 13785 `openssl ca -updatedb` updates the expiry status of certificates 13786 in the index file. 13787 13788 *Massimiliano Pala <madwolf@comune.modena.it>* 13789 13790 * New '-newreq-nodes' command option to CA.pl. This is like 13791 '-newreq', but calls 'openssl req' with the '-nodes' option 13792 so that the resulting key is not encrypted. 13793 13794 *Damien Miller <djm@mindrot.org>* 13795 13796 * New configuration for the GNU Hurd. 13797 13798 *Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte* 13799 13800 * Initial code to implement OCSP basic response verify. This 13801 is currently incomplete. Currently just finds the signer's 13802 certificate and verifies the signature on the response. 13803 13804 *Steve Henson* 13805 13806 * New SSLeay_version code SSLEAY_DIR to determine the compiled-in 13807 value of OPENSSLDIR. This is available via the new '-d' option 13808 to 'openssl version', and is also included in 'openssl version -a'. 13809 13810 *Bodo Moeller* 13811 13812 * Allowing defining memory allocation callbacks that will be given 13813 file name and line number information in additional arguments 13814 (a `const char*` and an int). The basic functionality remains, as 13815 well as the original possibility to just replace malloc(), 13816 realloc() and free() by functions that do not know about these 13817 additional arguments. To register and find out the current 13818 settings for extended allocation functions, the following 13819 functions are provided: 13820 13821 CRYPTO_set_mem_ex_functions 13822 CRYPTO_set_locked_mem_ex_functions 13823 CRYPTO_get_mem_ex_functions 13824 CRYPTO_get_locked_mem_ex_functions 13825 13826 These work the same way as CRYPTO_set_mem_functions and friends. 13827 `CRYPTO_get_[locked_]mem_functions` now writes 0 where such an 13828 extended allocation function is enabled. 13829 Similarly, `CRYPTO_get_[locked_]mem_ex_functions` writes 0 where 13830 a conventional allocation function is enabled. 13831 13832 *Richard Levitte, Bodo Moeller* 13833 13834 * Finish off removing the remaining LHASH function pointer casts. 13835 There should no longer be any prototype-casting required when using 13836 the LHASH abstraction, and any casts that remain are "bugs". See 13837 the callback types and macros at the head of lhash.h for details 13838 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 13839 13840 *Geoff Thorpe* 13841 13842 * Add automatic query of EGD sockets in RAND_poll() for the unix variant. 13843 If /dev/[u]random devices are not available or do not return enough 13844 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 13845 be queried. 13846 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 13847 /etc/entropy will be queried once each in this sequence, querying stops 13848 when enough entropy was collected without querying more sockets. 13849 13850 *Lutz Jaenicke* 13851 13852 * Change the Unix RAND_poll() variant to be able to poll several 13853 random devices, as specified by DEVRANDOM, until a sufficient amount 13854 of data has been collected. We spend at most 10 ms on each file 13855 (select timeout) and read in non-blocking mode. DEVRANDOM now 13856 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 13857 (previously it was just the string "/dev/urandom"), so on typical 13858 platforms the 10 ms delay will never occur. 13859 Also separate out the Unix variant to its own file, rand_unix.c. 13860 For VMS, there's a currently-empty rand_vms.c. 13861 13862 *Richard Levitte* 13863 13864 * Move OCSP client related routines to ocsp_cl.c. These 13865 provide utility functions which an application needing 13866 to issue a request to an OCSP responder and analyse the 13867 response will typically need: as opposed to those which an 13868 OCSP responder itself would need which will be added later. 13869 13870 OCSP_request_sign() signs an OCSP request with an API similar 13871 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 13872 response. OCSP_response_get1_basic() extracts basic response 13873 from response. OCSP_resp_find_status(): finds and extracts status 13874 information from an OCSP_CERTID structure (which will be created 13875 when the request structure is built). These are built from lower 13876 level functions which work on OCSP_SINGLERESP structures but 13877 won't normally be used unless the application wishes to examine 13878 extensions in the OCSP response for example. 13879 13880 Replace nonce routines with a pair of functions. 13881 OCSP_request_add1_nonce() adds a nonce value and optionally 13882 generates a random value. OCSP_check_nonce() checks the 13883 validity of the nonce in an OCSP response. 13884 13885 *Steve Henson* 13886 13887 * Change function OCSP_request_add() to OCSP_request_add0_id(). 13888 This doesn't copy the supplied OCSP_CERTID and avoids the 13889 need to free up the newly created id. Change return type 13890 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 13891 This can then be used to add extensions to the request. 13892 Deleted OCSP_request_new(), since most of its functionality 13893 is now in OCSP_REQUEST_new() (and the case insensitive name 13894 clash) apart from the ability to set the request name which 13895 will be added elsewhere. 13896 13897 *Steve Henson* 13898 13899 * Update OCSP API. Remove obsolete extensions argument from 13900 various functions. Extensions are now handled using the new 13901 OCSP extension code. New simple OCSP HTTP function which 13902 can be used to send requests and parse the response. 13903 13904 *Steve Henson* 13905 13906 * Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 13907 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 13908 uses the special reorder version of SET OF to sort the attributes 13909 and reorder them to match the encoded order. This resolves a long 13910 standing problem: a verify on a PKCS7 structure just after signing 13911 it used to fail because the attribute order did not match the 13912 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 13913 it uses the received order. This is necessary to tolerate some broken 13914 software that does not order SET OF. This is handled by encoding 13915 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 13916 to produce the required SET OF. 13917 13918 *Steve Henson* 13919 13920 * Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 13921 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 13922 files to get correct declarations of the ASN.1 item variables. 13923 13924 *Richard Levitte* 13925 13926 * Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 13927 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 13928 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 13929 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 13930 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 13931 ASN1_ITEM and no wrapper functions. 13932 13933 *Steve Henson* 13934 13935 * New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 13936 replace the old function pointer based I/O routines. Change most of 13937 the `*_d2i_bio()` and `*_d2i_fp()` functions to use these. 13938 13939 *Steve Henson* 13940 13941 * Enhance mkdef.pl to be more accepting about spacing in C preprocessor 13942 lines, recognize more "algorithms" that can be deselected, and make 13943 it complain about algorithm deselection that isn't recognised. 13944 13945 *Richard Levitte* 13946 13947 * New ASN1 functions to handle dup, sign, verify, digest, pack and 13948 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 13949 to use new functions. Add NO_ASN1_OLD which can be set to remove 13950 some old style ASN1 functions: this can be used to determine if old 13951 code will still work when these eventually go away. 13952 13953 *Steve Henson* 13954 13955 * New extension functions for OCSP structures, these follow the 13956 same conventions as certificates and CRLs. 13957 13958 *Steve Henson* 13959 13960 * New function X509V3_add1_i2d(). This automatically encodes and 13961 adds an extension. Its behaviour can be customised with various 13962 flags to append, replace or delete. Various wrappers added for 13963 certificates and CRLs. 13964 13965 *Steve Henson* 13966 13967 * Fix to avoid calling the underlying ASN1 print routine when 13968 an extension cannot be parsed. Correct a typo in the 13969 OCSP_SERVICELOC extension. Tidy up print OCSP format. 13970 13971 *Steve Henson* 13972 13973 * Make mkdef.pl parse some of the ASN1 macros and add appropriate 13974 entries for variables. 13975 13976 *Steve Henson* 13977 13978 * Add functionality to `apps/openssl.c` for detecting locking 13979 problems: As the program is single-threaded, all we have 13980 to do is register a locking callback using an array for 13981 storing which locks are currently held by the program. 13982 13983 *Bodo Moeller* 13984 13985 * Use a lock around the call to CRYPTO_get_ex_new_index() in 13986 SSL_get_ex_data_X509_STORE_idx(), which is used in 13987 ssl_verify_cert_chain() and thus can be called at any time 13988 during TLS/SSL handshakes so that thread-safety is essential. 13989 Unfortunately, the ex_data design is not at all suited 13990 for multi-threaded use, so it probably should be abolished. 13991 13992 *Bodo Moeller* 13993 13994 * Added Broadcom "ubsec" ENGINE to OpenSSL. 13995 13996 *Broadcom, tweaked and integrated by Geoff Thorpe* 13997 13998 * Move common extension printing code to new function 13999 X509V3_print_extensions(). Reorganise OCSP print routines and 14000 implement some needed OCSP ASN1 functions. Add OCSP extensions. 14001 14002 *Steve Henson* 14003 14004 * New function X509_signature_print() to remove duplication in some 14005 print routines. 14006 14007 *Steve Henson* 14008 14009 * Add a special meaning when SET OF and SEQUENCE OF flags are both 14010 set (this was treated exactly the same as SET OF previously). This 14011 is used to reorder the STACK representing the structure to match the 14012 encoding. This will be used to get round a problem where a PKCS7 14013 structure which was signed could not be verified because the STACK 14014 order did not reflect the encoded order. 14015 14016 *Steve Henson* 14017 14018 * Reimplement the OCSP ASN1 module using the new code. 14019 14020 *Steve Henson* 14021 14022 * Update the X509V3 code to permit the use of an ASN1_ITEM structure 14023 for its ASN1 operations. The old style function pointers still exist 14024 for now but they will eventually go away. 14025 14026 *Steve Henson* 14027 14028 * Merge in replacement ASN1 code from the ASN1 branch. This almost 14029 completely replaces the old ASN1 functionality with a table driven 14030 encoder and decoder which interprets an ASN1_ITEM structure describing 14031 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 14032 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 14033 has also been converted to the new form. 14034 14035 *Steve Henson* 14036 14037 * Change BN_mod_exp_recp so that negative moduli are tolerated 14038 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 14039 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 14040 for negative moduli. 14041 14042 *Bodo Moeller* 14043 14044 * Fix BN_uadd and BN_usub: Always return non-negative results instead 14045 of not touching the result's sign bit. 14046 14047 *Bodo Moeller* 14048 14049 * BN_div bugfix: If the result is 0, the sign (res->neg) must not be 14050 set. 14051 14052 *Bodo Moeller* 14053 14054 * Changed the LHASH code to use prototypes for callbacks, and created 14055 macros to declare and implement thin (optionally static) functions 14056 that provide type-safety and avoid function pointer casting for the 14057 type-specific callbacks. 14058 14059 *Geoff Thorpe* 14060 14061 * Added Kerberos Cipher Suites to be used with TLS, as written in 14062 RFC 2712. 14063 *Veers Staats <staatsvr@asc.hpc.mil>, 14064 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte* 14065 14066 * Reformat the FAQ so the different questions and answers can be divided 14067 in sections depending on the subject. 14068 14069 *Richard Levitte* 14070 14071 * Have the zlib compression code load ZLIB.DLL dynamically under 14072 Windows. 14073 14074 *Richard Levitte* 14075 14076 * New function BN_mod_sqrt for computing square roots modulo a prime 14077 (using the probabilistic Tonelli-Shanks algorithm unless 14078 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 14079 be handled deterministically). 14080 14081 *Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller* 14082 14083 * Make BN_mod_inverse faster by explicitly handling small quotients 14084 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 14085 512 bits], about 30% for larger ones [1024 or 2048 bits].) 14086 14087 *Bodo Moeller* 14088 14089 * New function BN_kronecker. 14090 14091 *Bodo Moeller* 14092 14093 * Fix BN_gcd so that it works on negative inputs; the result is 14094 positive unless both parameters are zero. 14095 Previously something reasonably close to an infinite loop was 14096 possible because numbers could be growing instead of shrinking 14097 in the implementation of Euclid's algorithm. 14098 14099 *Bodo Moeller* 14100 14101 * Fix BN_is_word() and BN_is_one() macros to take into account the 14102 sign of the number in question. 14103 14104 Fix BN_is_word(a,w) to work correctly for w == 0. 14105 14106 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 14107 because its test if the absolute value of 'a' equals 'w'. 14108 Note that BN_abs_is_word does *not* handle w == 0 reliably; 14109 it exists mostly for use in the implementations of BN_is_zero(), 14110 BN_is_one(), and BN_is_word(). 14111 14112 *Bodo Moeller* 14113 14114 * New function BN_swap. 14115 14116 *Bodo Moeller* 14117 14118 * Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 14119 the exponentiation functions are more likely to produce reasonable 14120 results on negative inputs. 14121 14122 *Bodo Moeller* 14123 14124 * Change BN_mod_mul so that the result is always non-negative. 14125 Previously, it could be negative if one of the factors was negative; 14126 I don't think anyone really wanted that behaviour. 14127 14128 *Bodo Moeller* 14129 14130 * Move `BN_mod_...` functions into new file `crypto/bn/bn_mod.c` 14131 (except for exponentiation, which stays in `crypto/bn/bn_exp.c`, 14132 and `BN_mod_mul_reciprocal`, which stays in `crypto/bn/bn_recp.c`) 14133 and add new functions: 14134 14135 BN_nnmod 14136 BN_mod_sqr 14137 BN_mod_add 14138 BN_mod_add_quick 14139 BN_mod_sub 14140 BN_mod_sub_quick 14141 BN_mod_lshift1 14142 BN_mod_lshift1_quick 14143 BN_mod_lshift 14144 BN_mod_lshift_quick 14145 14146 These functions always generate non-negative results. 14147 14148 `BN_nnmod` otherwise is `like BN_mod` (if `BN_mod` computes a remainder `r` 14149 such that `|m| < r < 0`, `BN_nnmod` will output `rem + |m|` instead). 14150 14151 `BN_mod_XXX_quick(r, a, [b,] m)` generates the same result as 14152 `BN_mod_XXX(r, a, [b,] m, ctx)`, but requires that `a` [and `b`] 14153 be reduced modulo `m`. 14154 14155 *Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller* 14156 14157<!-- 14158 The following entry accidentally appeared in the CHANGES file 14159 distributed with OpenSSL 0.9.7. The modifications described in 14160 it do *not* apply to OpenSSL 0.9.7. 14161 14162 * Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 14163 was actually never needed) and in BN_mul(). The removal in BN_mul() 14164 required a small change in bn_mul_part_recursive() and the addition 14165 of the functions bn_cmp_part_words(), bn_sub_part_words() and 14166 bn_add_part_words(), which do the same thing as bn_cmp_words(), 14167 bn_sub_words() and bn_add_words() except they take arrays with 14168 differing sizes. 14169 14170 *Richard Levitte* 14171--> 14172 14173 * In 'openssl passwd', verify passwords read from the terminal 14174 unless the '-salt' option is used (which usually means that 14175 verification would just waste user's time since the resulting 14176 hash is going to be compared with some given password hash) 14177 or the new '-noverify' option is used. 14178 14179 This is an incompatible change, but it does not affect 14180 non-interactive use of 'openssl passwd' (passwords on the command 14181 line, '-stdin' option, '-in ...' option) and thus should not 14182 cause any problems. 14183 14184 *Bodo Moeller* 14185 14186 * Remove all references to RSAref, since there's no more need for it. 14187 14188 *Richard Levitte* 14189 14190 * Make DSO load along a path given through an environment variable 14191 (SHLIB_PATH) with shl_load(). 14192 14193 *Richard Levitte* 14194 14195 * Constify the ENGINE code as a result of BIGNUM constification. 14196 Also constify the RSA code and most things related to it. In a 14197 few places, most notable in the depth of the ASN.1 code, ugly 14198 casts back to non-const were required (to be solved at a later 14199 time) 14200 14201 *Richard Levitte* 14202 14203 * Make it so the openssl application has all engines loaded by default. 14204 14205 *Richard Levitte* 14206 14207 * Constify the BIGNUM routines a little more. 14208 14209 *Richard Levitte* 14210 14211 * Add the following functions: 14212 14213 ENGINE_load_cswift() 14214 ENGINE_load_chil() 14215 ENGINE_load_atalla() 14216 ENGINE_load_nuron() 14217 ENGINE_load_builtin_engines() 14218 14219 That way, an application can itself choose if external engines that 14220 are built-in in OpenSSL shall ever be used or not. The benefit is 14221 that applications won't have to be linked with libdl or other dso 14222 libraries unless it's really needed. 14223 14224 Changed 'openssl engine' to load all engines on demand. 14225 Changed the engine header files to avoid the duplication of some 14226 declarations (they differed!). 14227 14228 *Richard Levitte* 14229 14230 * 'openssl engine' can now list capabilities. 14231 14232 *Richard Levitte* 14233 14234 * Better error reporting in 'openssl engine'. 14235 14236 *Richard Levitte* 14237 14238 * Never call load_dh_param(NULL) in s_server. 14239 14240 *Bodo Moeller* 14241 14242 * Add engine application. It can currently list engines by name and 14243 identity, and test if they are actually available. 14244 14245 *Richard Levitte* 14246 14247 * Improve RPM specification file by forcing symbolic linking and making 14248 sure the installed documentation is also owned by root.root. 14249 14250 *Damien Miller <djm@mindrot.org>* 14251 14252 * Give the OpenSSL applications more possibilities to make use of 14253 keys (public as well as private) handled by engines. 14254 14255 *Richard Levitte* 14256 14257 * Add OCSP code that comes from CertCo. 14258 14259 *Richard Levitte* 14260 14261 * Add VMS support for the Rijndael code. 14262 14263 *Richard Levitte* 14264 14265 * Added untested support for Nuron crypto accelerator. 14266 14267 *Ben Laurie* 14268 14269 * Add support for external cryptographic devices. This code was 14270 previously distributed separately as the "engine" branch. 14271 14272 *Geoff Thorpe, Richard Levitte* 14273 14274 * Rework the filename-translation in the DSO code. It is now possible to 14275 have far greater control over how a "name" is turned into a filename 14276 depending on the operating environment and any oddities about the 14277 different shared library filenames on each system. 14278 14279 *Geoff Thorpe* 14280 14281 * Support threads on FreeBSD-elf in Configure. 14282 14283 *Richard Levitte* 14284 14285 * Fix for SHA1 assembly problem with MASM: it produces 14286 warnings about corrupt line number information when assembling 14287 with debugging information. This is caused by the overlapping 14288 of two sections. 14289 14290 *Bernd Matthes <mainbug@celocom.de>, Steve Henson* 14291 14292 * NCONF changes. 14293 NCONF_get_number() has no error checking at all. As a replacement, 14294 NCONF_get_number_e() is defined (`_e` for "error checking") and is 14295 promoted strongly. The old NCONF_get_number is kept around for 14296 binary backward compatibility. 14297 Make it possible for methods to load from something other than a BIO, 14298 by providing a function pointer that is given a name instead of a BIO. 14299 For example, this could be used to load configuration data from an 14300 LDAP server. 14301 14302 *Richard Levitte* 14303 14304 * Fix for non blocking accept BIOs. Added new I/O special reason 14305 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 14306 with non blocking I/O was not possible because no retry code was 14307 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 14308 this case. 14309 14310 *Steve Henson* 14311 14312 * Added the beginnings of Rijndael support. 14313 14314 *Ben Laurie* 14315 14316 * Fix for bug in DirectoryString mask setting. Add support for 14317 X509_NAME_print_ex() in 'req' and X509_print_ex() function 14318 to allow certificate printing to more controllable, additional 14319 'certopt' option to 'x509' to allow new printing options to be 14320 set. 14321 14322 *Steve Henson* 14323 14324 * Clean old EAY MD5 hack from e_os.h. 14325 14326 *Richard Levitte* 14327 14328### Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 14329 14330 * Fix null-pointer assignment in do_change_cipher_spec() revealed 14331 by using the Codenomicon TLS Test Tool ([CVE-2004-0079]) 14332 14333 *Joe Orton, Steve Henson* 14334 14335### Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 14336 14337 * Fix additional bug revealed by the NISCC test suite: 14338 14339 Stop bug triggering large recursion when presented with 14340 certain ASN.1 tags ([CVE-2003-0851]) 14341 14342 *Steve Henson* 14343 14344### Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 14345 14346 * Fix various bugs revealed by running the NISCC test suite: 14347 14348 Stop out of bounds reads in the ASN1 code when presented with 14349 invalid tags (CVE-2003-0543 and CVE-2003-0544). 14350 14351 If verify callback ignores invalid public key errors don't try to check 14352 certificate signature with the NULL public key. 14353 14354 *Steve Henson* 14355 14356 * In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 14357 if the server requested one: as stated in TLS 1.0 and SSL 3.0 14358 specifications. 14359 14360 *Steve Henson* 14361 14362 * In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 14363 extra data after the compression methods not only for TLS 1.0 14364 but also for SSL 3.0 (as required by the specification). 14365 14366 *Bodo Moeller; problem pointed out by Matthias Loepfe* 14367 14368 * Change X509_certificate_type() to mark the key as exported/exportable 14369 when it's 512 *bits* long, not 512 bytes. 14370 14371 *Richard Levitte* 14372 14373### Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 14374 14375 * Countermeasure against the Klima-Pokorny-Rosa extension of 14376 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 14377 a protocol version number mismatch like a decryption error 14378 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 14379 14380 *Bodo Moeller* 14381 14382 * Turn on RSA blinding by default in the default implementation 14383 to avoid a timing attack. Applications that don't want it can call 14384 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 14385 They would be ill-advised to do so in most cases. 14386 14387 *Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller* 14388 14389 * Change RSA blinding code so that it works when the PRNG is not 14390 seeded (in this case, the secret RSA exponent is abused as 14391 an unpredictable seed -- if it is not unpredictable, there 14392 is no point in blinding anyway). Make RSA blinding thread-safe 14393 by remembering the creator's thread ID in rsa->blinding and 14394 having all other threads use local one-time blinding factors 14395 (this requires more computation than sharing rsa->blinding, but 14396 avoids excessive locking; and if an RSA object is not shared 14397 between threads, blinding will still be very fast). 14398 14399 *Bodo Moeller* 14400 14401### Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 14402 14403 * In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 14404 via timing by performing a MAC computation even if incorrect 14405 block cipher padding has been found. This is a countermeasure 14406 against active attacks where the attacker has to distinguish 14407 between bad padding and a MAC verification error. ([CVE-2003-0078]) 14408 14409 *Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 14410 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 14411 Martin Vuagnoux (EPFL, Ilion)* 14412 14413### Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 14414 14415 * New function OPENSSL_cleanse(), which is used to cleanse a section of 14416 memory from its contents. This is done with a counter that will 14417 place alternating values in each byte. This can be used to solve 14418 two issues: 1) the removal of calls to memset() by highly optimizing 14419 compilers, and 2) cleansing with other values than 0, since those can 14420 be read through on certain media, for example a swap space on disk. 14421 14422 *Geoff Thorpe* 14423 14424 * Bugfix: client side session caching did not work with external caching, 14425 because the session->cipher setting was not restored when reloading 14426 from the external cache. This problem was masked, when 14427 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 14428 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 14429 14430 *Lutz Jaenicke* 14431 14432 * Fix client_certificate (ssl/s2_clnt.c): The permissible total 14433 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 14434 14435 *Zeev Lieber <zeev-l@yahoo.com>* 14436 14437 * Undo an undocumented change introduced in 0.9.6e which caused 14438 repeated calls to OpenSSL_add_all_ciphers() and 14439 OpenSSL_add_all_digests() to be ignored, even after calling 14440 EVP_cleanup(). 14441 14442 *Richard Levitte* 14443 14444 * Change the default configuration reader to deal with last line not 14445 being properly terminated. 14446 14447 *Richard Levitte* 14448 14449 * Change X509_NAME_cmp() so it applies the special rules on handling 14450 DN values that are of type PrintableString, as well as RDNs of type 14451 emailAddress where the value has the type ia5String. 14452 14453 *stefank@valicert.com via Richard Levitte* 14454 14455 * Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 14456 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 14457 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 14458 the bitwise-OR of the two for use by the majority of applications 14459 wanting this behaviour, and update the docs. The documented 14460 behaviour and actual behaviour were inconsistent and had been 14461 changing anyway, so this is more a bug-fix than a behavioural 14462 change. 14463 14464 *Geoff Thorpe, diagnosed by Nadav Har'El* 14465 14466 * Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 14467 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 14468 14469 *Bodo Moeller* 14470 14471 * Fix initialization code race conditions in 14472 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 14473 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 14474 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 14475 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 14476 ssl2_get_cipher_by_char(), 14477 ssl3_get_cipher_by_char(). 14478 14479 *Patrick McCormick <patrick@tellme.com>, Bodo Moeller* 14480 14481 * Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 14482 the cached sessions are flushed, as the remove_cb() might use ex_data 14483 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 14484 (see [openssl.org #212]). 14485 14486 *Geoff Thorpe, Lutz Jaenicke* 14487 14488 * Fix typo in OBJ_txt2obj which incorrectly passed the content 14489 length, instead of the encoding length to d2i_ASN1_OBJECT. 14490 14491 *Steve Henson* 14492 14493### Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 14494 14495 * [In 0.9.6g-engine release:] 14496 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use `_stdcall`). 14497 14498 *Lynn Gazis <lgazis@rainbow.com>* 14499 14500### Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 14501 14502 * Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 14503 and get fix the header length calculation. 14504 *Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 14505 Alon Kantor <alonk@checkpoint.com> (and others), Steve Henson* 14506 14507 * Use proper error handling instead of 'assertions' in buffer 14508 overflow checks added in 0.9.6e. This prevents DoS (the 14509 assertions could call abort()). 14510 14511 *Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller* 14512 14513### Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 14514 14515 * Add various sanity checks to asn1_get_length() to reject 14516 the ASN1 length bytes if they exceed sizeof(long), will appear 14517 negative or the content length exceeds the length of the 14518 supplied buffer. 14519 14520 *Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>* 14521 14522 * Fix cipher selection routines: ciphers without encryption had no flags 14523 for the cipher strength set and where therefore not handled correctly 14524 by the selection routines (PR #130). 14525 14526 *Lutz Jaenicke* 14527 14528 * Fix EVP_dsa_sha macro. 14529 14530 *Nils Larsch* 14531 14532 * New option 14533 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 14534 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 14535 that was added in OpenSSL 0.9.6d. 14536 14537 As the countermeasure turned out to be incompatible with some 14538 broken SSL implementations, the new option is part of SSL_OP_ALL. 14539 SSL_OP_ALL is usually employed when compatibility with weird SSL 14540 implementations is desired (e.g. '-bugs' option to 's_client' and 14541 's_server'), so the new option is automatically set in many 14542 applications. 14543 14544 *Bodo Moeller* 14545 14546 * Changes in security patch: 14547 14548 Changes marked "(CHATS)" were sponsored by the Defense Advanced 14549 Research Projects Agency (DARPA) and Air Force Research Laboratory, 14550 Air Force Materiel Command, USAF, under agreement number 14551 F30602-01-2-0537. 14552 14553 * Add various sanity checks to asn1_get_length() to reject 14554 the ASN1 length bytes if they exceed sizeof(long), will appear 14555 negative or the content length exceeds the length of the 14556 supplied buffer. ([CVE-2002-0659]) 14557 14558 *Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>* 14559 14560 * Assertions for various potential buffer overflows, not known to 14561 happen in practice. 14562 14563 *Ben Laurie (CHATS)* 14564 14565 * Various temporary buffers to hold ASCII versions of integers were 14566 too small for 64 bit platforms. ([CVE-2002-0655]) 14567 *Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>* 14568 14569 * Remote buffer overflow in SSL3 protocol - an attacker could 14570 supply an oversized session ID to a client. ([CVE-2002-0656]) 14571 14572 *Ben Laurie (CHATS)* 14573 14574 * Remote buffer overflow in SSL2 protocol - an attacker could 14575 supply an oversized client master key. ([CVE-2002-0656]) 14576 14577 *Ben Laurie (CHATS)* 14578 14579### Changes between 0.9.6c and 0.9.6d [9 May 2002] 14580 14581 * Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 14582 encoded as NULL) with id-dsa-with-sha1. 14583 14584 *Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller* 14585 14586 * Check various `X509_...()` return values in `apps/req.c`. 14587 14588 *Nils Larsch <nla@trustcenter.de>* 14589 14590 * Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 14591 an end-of-file condition would erroneously be flagged, when the CRLF 14592 was just at the end of a processed block. The bug was discovered when 14593 processing data through a buffering memory BIO handing the data to a 14594 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 14595 <ptsekov@syntrex.com> and Nedelcho Stanev. 14596 14597 *Lutz Jaenicke* 14598 14599 * Implement a countermeasure against a vulnerability recently found 14600 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 14601 before application data chunks to avoid the use of known IVs 14602 with data potentially chosen by the attacker. 14603 14604 *Bodo Moeller* 14605 14606 * Fix length checks in ssl3_get_client_hello(). 14607 14608 *Bodo Moeller* 14609 14610 * TLS/SSL library bugfix: use s->s3->in_read_app_data differently 14611 to prevent ssl3_read_internal() from incorrectly assuming that 14612 ssl3_read_bytes() found application data while handshake 14613 processing was enabled when in fact s->s3->in_read_app_data was 14614 merely automatically cleared during the initial handshake. 14615 14616 *Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>* 14617 14618 * Fix object definitions for Private and Enterprise: they were not 14619 recognized in their shortname (=lowercase) representation. Extend 14620 obj_dat.pl to issue an error when using undefined keywords instead 14621 of silently ignoring the problem (Svenning Sorensen 14622 <sss@sss.dnsalias.net>). 14623 14624 *Lutz Jaenicke* 14625 14626 * Fix DH_generate_parameters() so that it works for 'non-standard' 14627 generators, i.e. generators other than 2 and 5. (Previously, the 14628 code did not properly initialise the 'add' and 'rem' values to 14629 BN_generate_prime().) 14630 14631 In the new general case, we do not insist that 'generator' is 14632 actually a primitive root: This requirement is rather pointless; 14633 a generator of the order-q subgroup is just as good, if not 14634 better. 14635 14636 *Bodo Moeller* 14637 14638 * Map new X509 verification errors to alerts. Discovered and submitted by 14639 Tom Wu <tom@arcot.com>. 14640 14641 *Lutz Jaenicke* 14642 14643 * Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 14644 returning non-zero before the data has been completely received 14645 when using non-blocking I/O. 14646 14647 *Bodo Moeller; problem pointed out by John Hughes* 14648 14649 * Some of the ciphers missed the strength entry (SSL_LOW etc). 14650 14651 *Ben Laurie, Lutz Jaenicke* 14652 14653 * Fix bug in SSL_clear(): bad sessions were not removed (found by 14654 Yoram Zahavi <YoramZ@gilian.com>). 14655 14656 *Lutz Jaenicke* 14657 14658 * Add information about CygWin 1.3 and on, and preserve proper 14659 configuration for the versions before that. 14660 14661 *Corinna Vinschen <vinschen@redhat.com> and Richard Levitte* 14662 14663 * Make removal from session cache (SSL_CTX_remove_session()) more robust: 14664 check whether we deal with a copy of a session and do not delete from 14665 the cache in this case. Problem reported by "Izhar Shoshani Levi" 14666 <izhar@checkpoint.com>. 14667 14668 *Lutz Jaenicke* 14669 14670 * Do not store session data into the internal session cache, if it 14671 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 14672 flag is set). Proposed by Aslam <aslam@funk.com>. 14673 14674 *Lutz Jaenicke* 14675 14676 * Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 14677 value is 0. 14678 14679 *Richard Levitte* 14680 14681 * [In 0.9.6d-engine release:] 14682 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 14683 14684 *Toomas Kiisk <vix@cyber.ee> via Richard Levitte* 14685 14686 * Add the configuration target linux-s390x. 14687 14688 *Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte* 14689 14690 * The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 14691 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 14692 variable as an indication that a ClientHello message has been 14693 received. As the flag value will be lost between multiple 14694 invocations of ssl3_accept when using non-blocking I/O, the 14695 function may not be aware that a handshake has actually taken 14696 place, thus preventing a new session from being added to the 14697 session cache. 14698 14699 To avoid this problem, we now set s->new_session to 2 instead of 14700 using a local variable. 14701 14702 *Lutz Jaenicke, Bodo Moeller* 14703 14704 * Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 14705 if the SSL_R_LENGTH_MISMATCH error is detected. 14706 14707 *Geoff Thorpe, Bodo Moeller* 14708 14709 * New 'shared_ldflag' column in Configure platform table. 14710 14711 *Richard Levitte* 14712 14713 * Fix EVP_CIPHER_mode macro. 14714 14715 *"Dan S. Camper" <dan@bti.net>* 14716 14717 * Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 14718 type, we must throw them away by setting rr->length to 0. 14719 14720 *D P Chang <dpc@qualys.com>* 14721 14722### Changes between 0.9.6b and 0.9.6c [21 dec 2001] 14723 14724 * Fix BN_rand_range bug pointed out by Dominikus Scherkl 14725 <Dominikus.Scherkl@biodata.com>. (The previous implementation 14726 worked incorrectly for those cases where range = `10..._2` and 14727 `3*range` is two bits longer than range.) 14728 14729 *Bodo Moeller* 14730 14731 * Only add signing time to PKCS7 structures if it is not already 14732 present. 14733 14734 *Steve Henson* 14735 14736 * Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 14737 OBJ_ld_ce should be OBJ_id_ce. 14738 Also some ip-pda OIDs in crypto/objects/objects.txt were 14739 incorrect (cf. RFC 3039). 14740 14741 *Matt Cooper, Frederic Giudicelli, Bodo Moeller* 14742 14743 * Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 14744 returns early because it has nothing to do. 14745 14746 *Andy Schneider <andy.schneider@bjss.co.uk>* 14747 14748 * [In 0.9.6c-engine release:] 14749 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 14750 14751 *Andy Schneider <andy.schneider@bjss.co.uk>* 14752 14753 * [In 0.9.6c-engine release:] 14754 Add support for Cryptographic Appliance's keyserver technology. 14755 (Use engine 'keyclient') 14756 14757 *Cryptographic Appliances and Geoff Thorpe* 14758 14759 * Add a configuration entry for OS/390 Unix. The C compiler 'c89' 14760 is called via tools/c89.sh because arguments have to be 14761 rearranged (all '-L' options must appear before the first object 14762 modules). 14763 14764 *Richard Shapiro <rshapiro@abinitio.com>* 14765 14766 * [In 0.9.6c-engine release:] 14767 Add support for Broadcom crypto accelerator cards, backported 14768 from 0.9.7. 14769 14770 *Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox* 14771 14772 * [In 0.9.6c-engine release:] 14773 Add support for SureWare crypto accelerator cards from 14774 Baltimore Technologies. (Use engine 'sureware') 14775 14776 *Baltimore Technologies and Mark Cox* 14777 14778 * [In 0.9.6c-engine release:] 14779 Add support for crypto accelerator cards from Accelerated 14780 Encryption Processing, www.aep.ie. (Use engine 'aep') 14781 14782 *AEP Inc. and Mark Cox* 14783 14784 * Add a configuration entry for gcc on UnixWare. 14785 14786 *Gary Benson <gbenson@redhat.com>* 14787 14788 * Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 14789 messages are stored in a single piece (fixed-length part and 14790 variable-length part combined) and fix various bugs found on the way. 14791 14792 *Bodo Moeller* 14793 14794 * Disable caching in BIO_gethostbyname(), directly use gethostbyname() 14795 instead. BIO_gethostbyname() does not know what timeouts are 14796 appropriate, so entries would stay in cache even when they have 14797 become invalid. 14798 *Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>* 14799 14800 * Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 14801 faced with a pathologically small ClientHello fragment that does 14802 not contain client_version: Instead of aborting with an error, 14803 simply choose the highest available protocol version (i.e., 14804 TLS 1.0 unless it is disabled). In practice, ClientHello 14805 messages are never sent like this, but this change gives us 14806 strictly correct behaviour at least for TLS. 14807 14808 *Bodo Moeller* 14809 14810 * Fix SSL handshake functions and SSL_clear() such that SSL_clear() 14811 never resets s->method to s->ctx->method when called from within 14812 one of the SSL handshake functions. 14813 14814 *Bodo Moeller; problem pointed out by Niko Baric* 14815 14816 * In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 14817 (sent using the client's version number) if client_version is 14818 smaller than the protocol version in use. Also change 14819 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 14820 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 14821 the client will at least see that alert. 14822 14823 *Bodo Moeller* 14824 14825 * Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 14826 correctly. 14827 14828 *Bodo Moeller* 14829 14830 * Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 14831 client receives HelloRequest while in a handshake. 14832 14833 *Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>* 14834 14835 * Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 14836 should end in 'break', not 'goto end' which circumvents various 14837 cleanups done in state SSL_ST_OK. But session related stuff 14838 must be disabled for SSL_ST_OK in the case that we just sent a 14839 HelloRequest. 14840 14841 Also avoid some overhead by not calling ssl_init_wbio_buffer() 14842 before just sending a HelloRequest. 14843 14844 *Bodo Moeller, Eric Rescorla <ekr@rtfm.com>* 14845 14846 * Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 14847 reveal whether illegal block cipher padding was found or a MAC 14848 verification error occurred. (Neither SSLerr() codes nor alerts 14849 are directly visible to potential attackers, but the information 14850 may leak via logfiles.) 14851 14852 Similar changes are not required for the SSL 2.0 implementation 14853 because the number of padding bytes is sent in clear for SSL 2.0, 14854 and the extra bytes are just ignored. However ssl/s2_pkt.c 14855 failed to verify that the purported number of padding bytes is in 14856 the legal range. 14857 14858 *Bodo Moeller* 14859 14860 * Add OpenUNIX-8 support including shared libraries 14861 (Boyd Lynn Gerber <gerberb@zenez.com>). 14862 14863 *Lutz Jaenicke* 14864 14865 * Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 14866 'wristwatch attack' using huge encoding parameters (cf. 14867 James H. Manger's CRYPTO 2001 paper). Note that the 14868 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 14869 encoding parameters and hence was not vulnerable. 14870 14871 *Bodo Moeller* 14872 14873 * BN_sqr() bug fix. 14874 14875 *Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>* 14876 14877 * Rabin-Miller test analyses assume uniformly distributed witnesses, 14878 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 14879 followed by modular reduction. 14880 14881 *Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>* 14882 14883 * Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 14884 equivalent based on BN_pseudo_rand() instead of BN_rand(). 14885 14886 *Bodo Moeller* 14887 14888 * s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 14889 This function was broken, as the check for a new client hello message 14890 to handle SGC did not allow these large messages. 14891 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 14892 14893 *Lutz Jaenicke* 14894 14895 * Add alert descriptions for TLSv1 to `SSL_alert_desc_string[_long]()`. 14896 14897 *Lutz Jaenicke* 14898 14899 * Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 14900 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 14901 14902 *Lutz Jaenicke* 14903 14904 * Rework the configuration and shared library support for Tru64 Unix. 14905 The configuration part makes use of modern compiler features and 14906 still retains old compiler behavior for those that run older versions 14907 of the OS. The shared library support part includes a variant that 14908 uses the RPATH feature, and is available through the special 14909 configuration target "alpha-cc-rpath", which will never be selected 14910 automatically. 14911 14912 *Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte* 14913 14914 * In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 14915 with the same message size as in ssl3_get_certificate_request(). 14916 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 14917 messages might inadvertently be reject as too long. 14918 14919 *Petr Lampa <lampa@fee.vutbr.cz>* 14920 14921 * Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 14922 14923 *Andy Polyakov* 14924 14925 * Modified SSL library such that the verify_callback that has been set 14926 specifically for an SSL object with SSL_set_verify() is actually being 14927 used. Before the change, a verify_callback set with this function was 14928 ignored and the verify_callback() set in the SSL_CTX at the time of 14929 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 14930 to allow the necessary settings. 14931 14932 *Lutz Jaenicke* 14933 14934 * Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 14935 explicitly to NULL, as at least on Solaris 8 this seems not always to be 14936 done automatically (in contradiction to the requirements of the C 14937 standard). This made problems when used from OpenSSH. 14938 14939 *Lutz Jaenicke* 14940 14941 * In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 14942 dh->length and always used 14943 14944 BN_rand_range(priv_key, dh->p). 14945 14946 BN_rand_range() is not necessary for Diffie-Hellman, and this 14947 specific range makes Diffie-Hellman unnecessarily inefficient if 14948 dh->length (recommended exponent length) is much smaller than the 14949 length of dh->p. We could use BN_rand_range() if the order of 14950 the subgroup was stored in the DH structure, but we only have 14951 dh->length. 14952 14953 So switch back to 14954 14955 BN_rand(priv_key, l, ...) 14956 14957 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 14958 otherwise. 14959 14960 *Bodo Moeller* 14961 14962 * In 14963 14964 RSA_eay_public_encrypt 14965 RSA_eay_private_decrypt 14966 RSA_eay_private_encrypt (signing) 14967 RSA_eay_public_decrypt (signature verification) 14968 14969 (default implementations for RSA_public_encrypt, 14970 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 14971 always reject numbers >= n. 14972 14973 *Bodo Moeller* 14974 14975 * In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 14976 to synchronize access to 'locking_thread'. This is necessary on 14977 systems where access to 'locking_thread' (an 'unsigned long' 14978 variable) is not atomic. 14979 14980 *Bodo Moeller* 14981 14982 * In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 14983 *before* setting the 'crypto_lock_rand' flag. The previous code had 14984 a race condition if 0 is a valid thread ID. 14985 14986 *Travis Vitek <vitek@roguewave.com>* 14987 14988 * Add support for shared libraries under Irix. 14989 14990 *Albert Chin-A-Young <china@thewrittenword.com>* 14991 14992 * Add configuration option to build on Linux on both big-endian and 14993 little-endian MIPS. 14994 14995 *Ralf Baechle <ralf@uni-koblenz.de>* 14996 14997 * Add the possibility to create shared libraries on HP-UX. 14998 14999 *Richard Levitte* 15000 15001### Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 15002 15003 * Change ssleay_rand_bytes (crypto/rand/md_rand.c) 15004 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 15005 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 15006 PRNG state recovery was possible based on the output of 15007 one PRNG request appropriately sized to gain knowledge on 15008 'md' followed by enough consecutive 1-byte PRNG requests 15009 to traverse all of 'state'. 15010 15011 1. When updating 'md_local' (the current thread's copy of 'md') 15012 during PRNG output generation, hash all of the previous 15013 'md_local' value, not just the half used for PRNG output. 15014 15015 2. Make the number of bytes from 'state' included into the hash 15016 independent from the number of PRNG bytes requested. 15017 15018 The first measure alone would be sufficient to avoid 15019 Markku-Juhani's attack. (Actually it had never occurred 15020 to me that the half of 'md_local' used for chaining was the 15021 half from which PRNG output bytes were taken -- I had always 15022 assumed that the secret half would be used.) The second 15023 measure makes sure that additional data from 'state' is never 15024 mixed into 'md_local' in small portions; this heuristically 15025 further strengthens the PRNG. 15026 15027 *Bodo Moeller* 15028 15029 * Fix crypto/bn/asm/mips3.s. 15030 15031 *Andy Polyakov* 15032 15033 * When only the key is given to "enc", the IV is undefined. Print out 15034 an error message in this case. 15035 15036 *Lutz Jaenicke* 15037 15038 * Handle special case when X509_NAME is empty in X509 printing routines. 15039 15040 *Steve Henson* 15041 15042 * In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 15043 positive and less than q. 15044 15045 *Bodo Moeller* 15046 15047 * Don't change `*pointer` in CRYPTO_add_lock() is add_lock_callback is 15048 used: it isn't thread safe and the add_lock_callback should handle 15049 that itself. 15050 15051 *Paul Rose <Paul.Rose@bridge.com>* 15052 15053 * Verify that incoming data obeys the block size in 15054 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 15055 15056 *Bodo Moeller* 15057 15058 * Fix OAEP check. 15059 15060 *Ulf Möller, Bodo Möller* 15061 15062 * The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 15063 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 15064 when fixing the server behaviour for backwards-compatible 'client 15065 hello' messages. (Note that the attack is impractical against 15066 SSL 3.0 and TLS 1.0 anyway because length and version checking 15067 means that the probability of guessing a valid ciphertext is 15068 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 15069 paper.) 15070 15071 Before 0.9.5, the countermeasure (hide the error by generating a 15072 random 'decryption result') did not work properly because 15073 ERR_clear_error() was missing, meaning that SSL_get_error() would 15074 detect the supposedly ignored error. 15075 15076 Both problems are now fixed. 15077 15078 *Bodo Moeller* 15079 15080 * In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 15081 (previously it was 1024). 15082 15083 *Bodo Moeller* 15084 15085 * Fix for compatibility mode trust settings: ignore trust settings 15086 unless some valid trust or reject settings are present. 15087 15088 *Steve Henson* 15089 15090 * Fix for blowfish EVP: its a variable length cipher. 15091 15092 *Steve Henson* 15093 15094 * Fix various bugs related to DSA S/MIME verification. Handle missing 15095 parameters in DSA public key structures and return an error in the 15096 DSA routines if parameters are absent. 15097 15098 *Steve Henson* 15099 15100 * In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 15101 in the current directory if neither $RANDFILE nor $HOME was set. 15102 RAND_file_name() in 0.9.6a returned NULL in this case. This has 15103 caused some confusion to Windows users who haven't defined $HOME. 15104 Thus RAND_file_name() is changed again: e_os.h can define a 15105 DEFAULT_HOME, which will be used if $HOME is not set. 15106 For Windows, we use "C:"; on other platforms, we still require 15107 environment variables. 15108 15109 * Move 'if (!initialized) RAND_poll()' into regions protected by 15110 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 15111 having multiple threads call RAND_poll() concurrently. 15112 15113 *Bodo Moeller* 15114 15115 * In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 15116 combination of a flag and a thread ID variable. 15117 Otherwise while one thread is in ssleay_rand_bytes (which sets the 15118 flag), *other* threads can enter ssleay_add_bytes without obeying 15119 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 15120 that they do not hold after the first thread unsets add_do_not_lock). 15121 15122 *Bodo Moeller* 15123 15124 * Change bctest again: '-x' expressions are not available in all 15125 versions of 'test'. 15126 15127 *Bodo Moeller* 15128 15129### Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 15130 15131 * Fix a couple of memory leaks in PKCS7_dataDecode() 15132 15133 *Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>* 15134 15135 * Change Configure and Makefiles to provide EXE_EXT, which will contain 15136 the default extension for executables, if any. Also, make the perl 15137 scripts that use symlink() to test if it really exists and use "cp" 15138 if it doesn't. All this made OpenSSL compilable and installable in 15139 CygWin. 15140 15141 *Richard Levitte* 15142 15143 * Fix for asn1_GetSequence() for indefinite length constructed data. 15144 If SEQUENCE is length is indefinite just set c->slen to the total 15145 amount of data available. 15146 15147 *Steve Henson, reported by shige@FreeBSD.org* 15148 15149 *This change does not apply to 0.9.7.* 15150 15151 * Change bctest to avoid here-documents inside command substitution 15152 (workaround for FreeBSD /bin/sh bug). 15153 For compatibility with Ultrix, avoid shell functions (introduced 15154 in the bctest version that searches along $PATH). 15155 15156 *Bodo Moeller* 15157 15158 * Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 15159 with des_encrypt() defined on some operating systems, like Solaris 15160 and UnixWare. 15161 15162 *Richard Levitte* 15163 15164 * Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 15165 On the Importance of Eliminating Errors in Cryptographic 15166 Computations, J. Cryptology 14 (2001) 2, 101-119, 15167 <http://theory.stanford.edu/~dabo/papers/faults.ps.gz>). 15168 15169 *Ulf Moeller* 15170 15171 * MIPS assembler BIGNUM division bug fix. 15172 15173 *Andy Polyakov* 15174 15175 * Disabled incorrect Alpha assembler code. 15176 15177 *Richard Levitte* 15178 15179 * Fix PKCS#7 decode routines so they correctly update the length 15180 after reading an EOC for the EXPLICIT tag. 15181 15182 *Steve Henson* 15183 15184 *This change does not apply to 0.9.7.* 15185 15186 * Fix bug in PKCS#12 key generation routines. This was triggered 15187 if a 3DES key was generated with a 0 initial byte. Include 15188 PKCS12_BROKEN_KEYGEN compilation option to retain the old 15189 (but broken) behaviour. 15190 15191 *Steve Henson* 15192 15193 * Enhance bctest to search for a working bc along $PATH and print 15194 it when found. 15195 15196 *Tim Rice <tim@multitalents.net> via Richard Levitte* 15197 15198 * Fix memory leaks in err.c: free err_data string if necessary; 15199 don't write to the wrong index in ERR_set_error_data. 15200 15201 *Bodo Moeller* 15202 15203 * Implement ssl23_peek (analogous to ssl23_read), which previously 15204 did not exist. 15205 15206 *Bodo Moeller* 15207 15208 * Replace rdtsc with `_emit` statements for VC++ version 5. 15209 15210 *Jeremy Cooper <jeremy@baymoo.org>* 15211 15212 * Make it possible to reuse SSLv2 sessions. 15213 15214 *Richard Levitte* 15215 15216 * In copy_email() check for >= 0 as a return value for 15217 X509_NAME_get_index_by_NID() since 0 is a valid index. 15218 15219 *Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>* 15220 15221 * Avoid coredump with unsupported or invalid public keys by checking if 15222 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 15223 PKCS7_verify() fails with non detached data. 15224 15225 *Steve Henson* 15226 15227 * Don't use getenv in library functions when run as setuid/setgid. 15228 New function OPENSSL_issetugid(). 15229 15230 *Ulf Moeller* 15231 15232 * Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 15233 due to incorrect handling of multi-threading: 15234 15235 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 15236 15237 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 15238 15239 3. Count how many times MemCheck_off() has been called so that 15240 nested use can be treated correctly. This also avoids 15241 inband-signalling in the previous code (which relied on the 15242 assumption that thread ID 0 is impossible). 15243 15244 *Bodo Moeller* 15245 15246 * Add "-rand" option also to s_client and s_server. 15247 15248 *Lutz Jaenicke* 15249 15250 * Fix CPU detection on Irix 6.x. 15251 *Kurt Hockenbury <khockenb@stevens-tech.edu> and 15252 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>* 15253 15254 * Fix X509_NAME bug which produced incorrect encoding if X509_NAME 15255 was empty. 15256 15257 *Steve Henson* 15258 15259 *This change does not apply to 0.9.7.* 15260 15261 * Use the cached encoding of an X509_NAME structure rather than 15262 copying it. This is apparently the reason for the libsafe "errors" 15263 but the code is actually correct. 15264 15265 *Steve Henson* 15266 15267 * Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 15268 Bleichenbacher's DSA attack. 15269 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 15270 to be set and top=0 forces the highest bit to be set; top=-1 is new 15271 and leaves the highest bit random. 15272 15273 *Ulf Moeller, Bodo Moeller* 15274 15275 * In the `NCONF_...`-based implementations for `CONF_...` queries 15276 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 15277 a temporary CONF structure with the data component set to NULL 15278 (which gives segmentation faults in lh_retrieve). 15279 Instead, use NULL for the CONF pointer in CONF_get_string and 15280 CONF_get_number (which may use environment variables) and directly 15281 return NULL from CONF_get_section. 15282 15283 *Bodo Moeller* 15284 15285 * Fix potential buffer overrun for EBCDIC. 15286 15287 *Ulf Moeller* 15288 15289 * Tolerate nonRepudiation as being valid for S/MIME signing and certSign 15290 keyUsage if basicConstraints absent for a CA. 15291 15292 *Steve Henson* 15293 15294 * Make SMIME_write_PKCS7() write mail header values with a format that 15295 is more generally accepted (no spaces before the semicolon), since 15296 some programs can't parse those values properly otherwise. Also make 15297 sure BIO's that break lines after each write do not create invalid 15298 headers. 15299 15300 *Richard Levitte* 15301 15302 * Make the CRL encoding routines work with empty SEQUENCE OF. The 15303 macros previously used would not encode an empty SEQUENCE OF 15304 and break the signature. 15305 15306 *Steve Henson* 15307 15308 *This change does not apply to 0.9.7.* 15309 15310 * Zero the premaster secret after deriving the master secret in 15311 DH ciphersuites. 15312 15313 *Steve Henson* 15314 15315 * Add some EVP_add_digest_alias registrations (as found in 15316 OpenSSL_add_all_digests()) to SSL_library_init() 15317 aka OpenSSL_add_ssl_algorithms(). This provides improved 15318 compatibility with peers using X.509 certificates 15319 with unconventional AlgorithmIdentifier OIDs. 15320 15321 *Bodo Moeller* 15322 15323 * Fix for Irix with NO_ASM. 15324 15325 *"Bruce W. Forsberg" <bruce.forsberg@baesystems.com>* 15326 15327 * ./config script fixes. 15328 15329 *Ulf Moeller, Richard Levitte* 15330 15331 * Fix 'openssl passwd -1'. 15332 15333 *Bodo Moeller* 15334 15335 * Change PKCS12_key_gen_asc() so it can cope with non null 15336 terminated strings whose length is passed in the passlen 15337 parameter, for example from PEM callbacks. This was done 15338 by adding an extra length parameter to asc2uni(). 15339 15340 *Steve Henson, reported by <oddissey@samsung.co.kr>* 15341 15342 * Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 15343 call failed, free the DSA structure. 15344 15345 *Bodo Moeller* 15346 15347 * Fix to uni2asc() to cope with zero length Unicode strings. 15348 These are present in some PKCS#12 files. 15349 15350 *Steve Henson* 15351 15352 * Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 15353 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 15354 when writing a 32767 byte record. 15355 15356 *Bodo Moeller; problem reported by Eric Day <eday@concentric.net>* 15357 15358 * In `RSA_eay_public_{en,ed}crypt` and RSA_eay_mod_exp (rsa_eay.c), 15359 obtain lock CRYPTO_LOCK_RSA before setting `rsa->_method_mod_{n,p,q}`. 15360 15361 (RSA objects have a reference count access to which is protected 15362 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 15363 so they are meant to be shared between threads.) 15364 *Bodo Moeller, Geoff Thorpe; original patch submitted by 15365 "Reddie, Steven" <Steven.Reddie@ca.com>* 15366 15367 * Fix a deadlock in CRYPTO_mem_leaks(). 15368 15369 *Bodo Moeller* 15370 15371 * Use better test patterns in bntest. 15372 15373 *Ulf Möller* 15374 15375 * rand_win.c fix for Borland C. 15376 15377 *Ulf Möller* 15378 15379 * BN_rshift bugfix for n == 0. 15380 15381 *Bodo Moeller* 15382 15383 * Add a 'bctest' script that checks for some known 'bc' bugs 15384 so that 'make test' does not abort just because 'bc' is broken. 15385 15386 *Bodo Moeller* 15387 15388 * Store verify_result within SSL_SESSION also for client side to 15389 avoid potential security hole. (Re-used sessions on the client side 15390 always resulted in verify_result==X509_V_OK, not using the original 15391 result of the server certificate verification.) 15392 15393 *Lutz Jaenicke* 15394 15395 * Fix ssl3_pending: If the record in s->s3->rrec is not of type 15396 SSL3_RT_APPLICATION_DATA, return 0. 15397 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 15398 15399 *Bodo Moeller* 15400 15401 * Fix SSL_peek: 15402 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 15403 releases, have been re-implemented by renaming the previous 15404 implementations of ssl2_read and ssl3_read to ssl2_read_internal 15405 and ssl3_read_internal, respectively, and adding 'peek' parameters 15406 to them. The new ssl[23]_{read,peek} functions are calls to 15407 ssl[23]_read_internal with the 'peek' flag set appropriately. 15408 A 'peek' parameter has also been added to ssl3_read_bytes, which 15409 does the actual work for ssl3_read_internal. 15410 15411 *Bodo Moeller* 15412 15413 * Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 15414 the method-specific "init()" handler. Also clean up ex_data after 15415 calling the method-specific "finish()" handler. Previously, this was 15416 happening the other way round. 15417 15418 *Geoff Thorpe* 15419 15420 * Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 15421 The previous value, 12, was not always sufficient for BN_mod_exp(). 15422 15423 *Bodo Moeller* 15424 15425 * Make sure that shared libraries get the internal name engine with 15426 the full version number and not just 0. This should mark the 15427 shared libraries as not backward compatible. Of course, this should 15428 be changed again when we can guarantee backward binary compatibility. 15429 15430 *Richard Levitte* 15431 15432 * Fix typo in get_cert_by_subject() in by_dir.c 15433 15434 *Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>* 15435 15436 * Rework the system to generate shared libraries: 15437 15438 - Make note of the expected extension for the shared libraries and 15439 if there is a need for symbolic links from for example libcrypto.so.0 15440 to libcrypto.so.0.9.7. There is extended info in Configure for 15441 that. 15442 15443 - Make as few rebuilds of the shared libraries as possible. 15444 15445 - Still avoid linking the OpenSSL programs with the shared libraries. 15446 15447 - When installing, install the shared libraries separately from the 15448 static ones. 15449 15450 *Richard Levitte* 15451 15452 * Fix SSL_CTX_set_read_ahead macro to actually use its argument. 15453 15454 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 15455 and not in SSL_clear because the latter is also used by the 15456 accept/connect functions; previously, the settings made by 15457 SSL_set_read_ahead would be lost during the handshake. 15458 15459 *Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>* 15460 15461 * Correct util/mkdef.pl to be selective about disabled algorithms. 15462 Previously, it would create entries for disabled algorithms no 15463 matter what. 15464 15465 *Richard Levitte* 15466 15467 * Added several new manual pages for SSL_* function. 15468 15469 *Lutz Jaenicke* 15470 15471### Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 15472 15473 * In ssl23_get_client_hello, generate an error message when faced 15474 with an initial SSL 3.0/TLS record that is too small to contain the 15475 first two bytes of the ClientHello message, i.e. client_version. 15476 (Note that this is a pathologic case that probably has never happened 15477 in real life.) The previous approach was to use the version number 15478 from the record header as a substitute; but our protocol choice 15479 should not depend on that one because it is not authenticated 15480 by the Finished messages. 15481 15482 *Bodo Moeller* 15483 15484 * More robust randomness gathering functions for Windows. 15485 15486 *Jeffrey Altman <jaltman@columbia.edu>* 15487 15488 * For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 15489 not set then we don't setup the error code for issuer check errors 15490 to avoid possibly overwriting other errors which the callback does 15491 handle. If an application does set the flag then we assume it knows 15492 what it is doing and can handle the new informational codes 15493 appropriately. 15494 15495 *Steve Henson* 15496 15497 * Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 15498 a general "ANY" type, as such it should be able to decode anything 15499 including tagged types. However it didn't check the class so it would 15500 wrongly interpret tagged types in the same way as their universal 15501 counterpart and unknown types were just rejected. Changed so that the 15502 tagged and unknown types are handled in the same way as a SEQUENCE: 15503 that is the encoding is stored intact. There is also a new type 15504 "V_ASN1_OTHER" which is used when the class is not universal, in this 15505 case we have no idea what the actual type is so we just lump them all 15506 together. 15507 15508 *Steve Henson* 15509 15510 * On VMS, stdout may very well lead to a file that is written to 15511 in a record-oriented fashion. That means that every write() will 15512 write a separate record, which will be read separately by the 15513 programs trying to read from it. This can be very confusing. 15514 15515 The solution is to put a BIO filter in the way that will buffer 15516 text until a linefeed is reached, and then write everything a 15517 line at a time, so every record written will be an actual line, 15518 not chunks of lines and not (usually doesn't happen, but I've 15519 seen it once) several lines in one record. BIO_f_linebuffer() is 15520 the answer. 15521 15522 Currently, it's a VMS-only method, because that's where it has 15523 been tested well enough. 15524 15525 *Richard Levitte* 15526 15527 * Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 15528 it can return incorrect results. 15529 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 15530 but it was in 0.9.6-beta[12].) 15531 15532 *Bodo Moeller* 15533 15534 * Disable the check for content being present when verifying detached 15535 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 15536 include zero length content when signing messages. 15537 15538 *Steve Henson* 15539 15540 * New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 15541 BIO_ctrl (for BIO pairs). 15542 15543 *Bodo Möller* 15544 15545 * Add DSO method for VMS. 15546 15547 *Richard Levitte* 15548 15549 * Bug fix: Montgomery multiplication could produce results with the 15550 wrong sign. 15551 15552 *Ulf Möller* 15553 15554 * Add RPM specification openssl.spec and modify it to build three 15555 packages. The default package contains applications, application 15556 documentation and run-time libraries. The devel package contains 15557 include files, static libraries and function documentation. The 15558 doc package contains the contents of the doc directory. The original 15559 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 15560 15561 *Richard Levitte* 15562 15563 * Add a large number of documentation files for many SSL routines. 15564 15565 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>* 15566 15567 * Add a configuration entry for Sony News 4. 15568 15569 *NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>* 15570 15571 * Don't set the two most significant bits to one when generating a 15572 random number < q in the DSA library. 15573 15574 *Ulf Möller* 15575 15576 * New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 15577 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 15578 the underlying transport is blocking) if a handshake took place. 15579 (The default behaviour is needed by applications such as s_client 15580 and s_server that use select() to determine when to use SSL_read; 15581 but for applications that know in advance when to expect data, it 15582 just makes things more complicated.) 15583 15584 *Bodo Moeller* 15585 15586 * Add RAND_egd_bytes(), which gives control over the number of bytes read 15587 from EGD. 15588 15589 *Ben Laurie* 15590 15591 * Add a few more EBCDIC conditionals that make `req` and `x509` 15592 work better on such systems. 15593 15594 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 15595 15596 * Add two demo programs for PKCS12_parse() and PKCS12_create(). 15597 Update PKCS12_parse() so it copies the friendlyName and the 15598 keyid to the certificates aux info. 15599 15600 *Steve Henson* 15601 15602 * Fix bug in PKCS7_verify() which caused an infinite loop 15603 if there was more than one signature. 15604 15605 *Sven Uszpelkat <su@celocom.de>* 15606 15607 * Major change in util/mkdef.pl to include extra information 15608 about each symbol, as well as presenting variables as well 15609 as functions. This change means that there's n more need 15610 to rebuild the .num files when some algorithms are excluded. 15611 15612 *Richard Levitte* 15613 15614 * Allow the verify time to be set by an application, 15615 rather than always using the current time. 15616 15617 *Steve Henson* 15618 15619 * Phase 2 verify code reorganisation. The certificate 15620 verify code now looks up an issuer certificate by a 15621 number of criteria: subject name, authority key id 15622 and key usage. It also verifies self signed certificates 15623 by the same criteria. The main comparison function is 15624 X509_check_issued() which performs these checks. 15625 15626 Lot of changes were necessary in order to support this 15627 without completely rewriting the lookup code. 15628 15629 Authority and subject key identifier are now cached. 15630 15631 The LHASH 'certs' is X509_STORE has now been replaced 15632 by a STACK_OF(X509_OBJECT). This is mainly because an 15633 LHASH can't store or retrieve multiple objects with 15634 the same hash value. 15635 15636 As a result various functions (which were all internal 15637 use only) have changed to handle the new X509_STORE 15638 structure. This will break anything that messed round 15639 with X509_STORE internally. 15640 15641 The functions X509_STORE_add_cert() now checks for an 15642 exact match, rather than just subject name. 15643 15644 The X509_STORE API doesn't directly support the retrieval 15645 of multiple certificates matching a given criteria, however 15646 this can be worked round by performing a lookup first 15647 (which will fill the cache with candidate certificates) 15648 and then examining the cache for matches. This is probably 15649 the best we can do without throwing out X509_LOOKUP 15650 entirely (maybe later...). 15651 15652 The X509_VERIFY_CTX structure has been enhanced considerably. 15653 15654 All certificate lookup operations now go via a get_issuer() 15655 callback. Although this currently uses an X509_STORE it 15656 can be replaced by custom lookups. This is a simple way 15657 to bypass the X509_STORE hackery necessary to make this 15658 work and makes it possible to use more efficient techniques 15659 in future. A very simple version which uses a simple 15660 STACK for its trusted certificate store is also provided 15661 using X509_STORE_CTX_trusted_stack(). 15662 15663 The verify_cb() and verify() callbacks now have equivalents 15664 in the X509_STORE_CTX structure. 15665 15666 X509_STORE_CTX also has a 'flags' field which can be used 15667 to customise the verify behaviour. 15668 15669 *Steve Henson* 15670 15671 * Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 15672 excludes S/MIME capabilities. 15673 15674 *Steve Henson* 15675 15676 * When a certificate request is read in keep a copy of the 15677 original encoding of the signed data and use it when outputting 15678 again. Signatures then use the original encoding rather than 15679 a decoded, encoded version which may cause problems if the 15680 request is improperly encoded. 15681 15682 *Steve Henson* 15683 15684 * For consistency with other BIO_puts implementations, call 15685 buffer_write(b, ...) directly in buffer_puts instead of calling 15686 BIO_write(b, ...). 15687 15688 In BIO_puts, increment b->num_write as in BIO_write. 15689 15690 *Peter.Sylvester@EdelWeb.fr* 15691 15692 * Fix BN_mul_word for the case where the word is 0. (We have to use 15693 BN_zero, we may not return a BIGNUM with an array consisting of 15694 words set to zero.) 15695 15696 *Bodo Moeller* 15697 15698 * Avoid calling abort() from within the library when problems are 15699 detected, except if preprocessor symbols have been defined 15700 (such as REF_CHECK, BN_DEBUG etc.). 15701 15702 *Bodo Moeller* 15703 15704 * New openssl application 'rsautl'. This utility can be 15705 used for low-level RSA operations. DER public key 15706 BIO/fp routines also added. 15707 15708 *Steve Henson* 15709 15710 * New Configure entry and patches for compiling on QNX 4. 15711 15712 *Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>* 15713 15714 * A demo state-machine implementation was sponsored by 15715 Nuron (<http://www.nuron.com/>) and is now available in 15716 demos/state_machine. 15717 15718 *Ben Laurie* 15719 15720 * New options added to the 'dgst' utility for signature 15721 generation and verification. 15722 15723 *Steve Henson* 15724 15725 * Unrecognized PKCS#7 content types are now handled via a 15726 catch all ASN1_TYPE structure. This allows unsupported 15727 types to be stored as a "blob" and an application can 15728 encode and decode it manually. 15729 15730 *Steve Henson* 15731 15732 * Fix various signed/unsigned issues to make a_strex.c 15733 compile under VC++. 15734 15735 *Oscar Jacobsson <oscar.jacobsson@celocom.com>* 15736 15737 * ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 15738 length if passed a buffer. ASN1_INTEGER_to_BN failed 15739 if passed a NULL BN and its argument was negative. 15740 15741 *Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>* 15742 15743 * Modification to PKCS#7 encoding routines to output definite 15744 length encoding. Since currently the whole structures are in 15745 memory there's not real point in using indefinite length 15746 constructed encoding. However if OpenSSL is compiled with 15747 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 15748 15749 *Steve Henson* 15750 15751 * Added BIO_vprintf() and BIO_vsnprintf(). 15752 15753 *Richard Levitte* 15754 15755 * Added more prefixes to parse for in the strings written 15756 through a logging bio, to cover all the levels that are available 15757 through syslog. The prefixes are now: 15758 15759 PANIC, EMERG, EMR => LOG_EMERG 15760 ALERT, ALR => LOG_ALERT 15761 CRIT, CRI => LOG_CRIT 15762 ERROR, ERR => LOG_ERR 15763 WARNING, WARN, WAR => LOG_WARNING 15764 NOTICE, NOTE, NOT => LOG_NOTICE 15765 INFO, INF => LOG_INFO 15766 DEBUG, DBG => LOG_DEBUG 15767 15768 and as before, if none of those prefixes are present at the 15769 beginning of the string, LOG_ERR is chosen. 15770 15771 On Win32, the `LOG_*` levels are mapped according to this: 15772 15773 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 15774 LOG_WARNING => EVENTLOG_WARNING_TYPE 15775 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 15776 15777 *Richard Levitte* 15778 15779 * Made it possible to reconfigure with just the configuration 15780 argument "reconf" or "reconfigure". The command line arguments 15781 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 15782 and are retrieved from there when reconfiguring. 15783 15784 *Richard Levitte* 15785 15786 * MD4 implemented. 15787 15788 *Assar Westerlund <assar@sics.se>, Richard Levitte* 15789 15790 * Add the arguments -CAfile and -CApath to the pkcs12 utility. 15791 15792 *Richard Levitte* 15793 15794 * The obj_dat.pl script was messing up the sorting of object 15795 names. The reason was that it compared the quoted version 15796 of strings as a result "OCSP" > "OCSP Signing" because 15797 " > SPACE. Changed script to store unquoted versions of 15798 names and add quotes on output. It was also omitting some 15799 names from the lookup table if they were given a default 15800 value (that is if SN is missing it is given the same 15801 value as LN and vice versa), these are now added on the 15802 grounds that if an object has a name we should be able to 15803 look it up. Finally added warning output when duplicate 15804 short or long names are found. 15805 15806 *Steve Henson* 15807 15808 * Changes needed for Tandem NSK. 15809 15810 *Scott Uroff <scott@xypro.com>* 15811 15812 * Fix SSL 2.0 rollback checking: Due to an off-by-one error in 15813 RSA_padding_check_SSLv23(), special padding was never detected 15814 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 15815 version rollback attacks was not effective. 15816 15817 In s23_clnt.c, don't use special rollback-attack detection padding 15818 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 15819 client; similarly, in s23_srvr.c, don't do the rollback check if 15820 SSL 2.0 is the only protocol enabled in the server. 15821 15822 *Bodo Moeller* 15823 15824 * Make it possible to get hexdumps of unprintable data with 'openssl 15825 asn1parse'. By implication, the functions ASN1_parse_dump() and 15826 BIO_dump_indent() are added. 15827 15828 *Richard Levitte* 15829 15830 * New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 15831 these print out strings and name structures based on various 15832 flags including RFC2253 support and proper handling of 15833 multibyte characters. Added options to the 'x509' utility 15834 to allow the various flags to be set. 15835 15836 *Steve Henson* 15837 15838 * Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 15839 Also change the functions X509_cmp_current_time() and 15840 X509_gmtime_adj() work with an ASN1_TIME structure, 15841 this will enable certificates using GeneralizedTime in validity 15842 dates to be checked. 15843 15844 *Steve Henson* 15845 15846 * Make the NEG_PUBKEY_BUG code (which tolerates invalid 15847 negative public key encodings) on by default, 15848 NO_NEG_PUBKEY_BUG can be set to disable it. 15849 15850 *Steve Henson* 15851 15852 * New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 15853 content octets. An i2c_ASN1_OBJECT is unnecessary because 15854 the encoding can be trivially obtained from the structure. 15855 15856 *Steve Henson* 15857 15858 * crypto/err.c locking bugfix: Use write locks (`CRYPTO_w_[un]lock`), 15859 not read locks (`CRYPTO_r_[un]lock`). 15860 15861 *Bodo Moeller* 15862 15863 * A first attempt at creating official support for shared 15864 libraries through configuration. I've kept it so the 15865 default is static libraries only, and the OpenSSL programs 15866 are always statically linked for now, but there are 15867 preparations for dynamic linking in place. 15868 This has been tested on Linux and Tru64. 15869 15870 *Richard Levitte* 15871 15872 * Randomness polling function for Win9x, as described in: 15873 Peter Gutmann, Software Generation of Practically Strong 15874 Random Numbers. 15875 15876 *Ulf Möller* 15877 15878 * Fix so PRNG is seeded in req if using an already existing 15879 DSA key. 15880 15881 *Steve Henson* 15882 15883 * New options to smime application. -inform and -outform 15884 allow alternative formats for the S/MIME message including 15885 PEM and DER. The -content option allows the content to be 15886 specified separately. This should allow things like Netscape 15887 form signing output easier to verify. 15888 15889 *Steve Henson* 15890 15891 * Fix the ASN1 encoding of tags using the 'long form'. 15892 15893 *Steve Henson* 15894 15895 * New ASN1 functions, `i2c_*` and `c2i_*` for INTEGER and BIT 15896 STRING types. These convert content octets to and from the 15897 underlying type. The actual tag and length octets are 15898 already assumed to have been read in and checked. These 15899 are needed because all other string types have virtually 15900 identical handling apart from the tag. By having versions 15901 of the ASN1 functions that just operate on content octets 15902 IMPLICIT tagging can be handled properly. It also allows 15903 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 15904 and ASN1_INTEGER are identical apart from the tag. 15905 15906 *Steve Henson* 15907 15908 * Change the handling of OID objects as follows: 15909 15910 - New object identifiers are inserted in objects.txt, following 15911 the syntax given in [crypto/objects/README.md](crypto/objects/README.md). 15912 - objects.pl is used to process obj_mac.num and create a new 15913 obj_mac.h. 15914 - obj_dat.pl is used to create a new obj_dat.h, using the data in 15915 obj_mac.h. 15916 15917 This is currently kind of a hack, and the perl code in objects.pl 15918 isn't very elegant, but it works as I intended. The simplest way 15919 to check that it worked correctly is to look in obj_dat.h and 15920 check the array nid_objs and make sure the objects haven't moved 15921 around (this is important!). Additions are OK, as well as 15922 consistent name changes. 15923 15924 *Richard Levitte* 15925 15926 * Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 15927 15928 *Bodo Moeller* 15929 15930 * Addition of the command line parameter '-rand file' to 'openssl req'. 15931 The given file adds to whatever has already been seeded into the 15932 random pool through the RANDFILE configuration file option or 15933 environment variable, or the default random state file. 15934 15935 *Richard Levitte* 15936 15937 * mkstack.pl now sorts each macro group into lexical order. 15938 Previously the output order depended on the order the files 15939 appeared in the directory, resulting in needless rewriting 15940 of safestack.h . 15941 15942 *Steve Henson* 15943 15944 * Patches to make OpenSSL compile under Win32 again. Mostly 15945 work arounds for the VC++ problem that it treats func() as 15946 func(void). Also stripped out the parts of mkdef.pl that 15947 added extra typesafe functions: these no longer exist. 15948 15949 *Steve Henson* 15950 15951 * Reorganisation of the stack code. The macros are now all 15952 collected in safestack.h . Each macro is defined in terms of 15953 a "stack macro" of the form `SKM_<name>(type, a, b)`. The 15954 DEBUG_SAFESTACK is now handled in terms of function casts, 15955 this has the advantage of retaining type safety without the 15956 use of additional functions. If DEBUG_SAFESTACK is not defined 15957 then the non typesafe macros are used instead. Also modified the 15958 mkstack.pl script to handle the new form. Needs testing to see 15959 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 15960 the default if no major problems. Similar behaviour for ASN1_SET_OF 15961 and PKCS12_STACK_OF. 15962 15963 *Steve Henson* 15964 15965 * When some versions of IIS use the 'NET' form of private key the 15966 key derivation algorithm is different. Normally MD5(password) is 15967 used as a 128 bit RC4 key. In the modified case 15968 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some 15969 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 15970 as the old Netscape_RSA functions except they have an additional 15971 'sgckey' parameter which uses the modified algorithm. Also added 15972 an -sgckey command line option to the rsa utility. Thanks to 15973 Adrian Peck <bertie@ncipher.com> for posting details of the modified 15974 algorithm to openssl-dev. 15975 15976 *Steve Henson* 15977 15978 * The evp_local.h macros were using 'c.##kname' which resulted in 15979 invalid expansion on some systems (SCO 5.0.5 for example). 15980 Corrected to 'c.kname'. 15981 15982 *Phillip Porch <root@theporch.com>* 15983 15984 * New X509_get1_email() and X509_REQ_get1_email() functions that return 15985 a STACK of email addresses from a certificate or request, these look 15986 in the subject name and the subject alternative name extensions and 15987 omit any duplicate addresses. 15988 15989 *Steve Henson* 15990 15991 * Re-implement BN_mod_exp2_mont using independent (and larger) windows. 15992 This makes DSA verification about 2 % faster. 15993 15994 *Bodo Moeller* 15995 15996 * Increase maximum window size in `BN_mod_exp_...` to 6 bits instead of 5 15997 (meaning that now 2^5 values will be precomputed, which is only 4 KB 15998 plus overhead for 1024 bit moduli). 15999 This makes exponentiations about 0.5 % faster for 1024 bit 16000 exponents (as measured by "openssl speed rsa2048"). 16001 16002 *Bodo Moeller* 16003 16004 * Rename memory handling macros to avoid conflicts with other 16005 software: 16006 Malloc => OPENSSL_malloc 16007 Malloc_locked => OPENSSL_malloc_locked 16008 Realloc => OPENSSL_realloc 16009 Free => OPENSSL_free 16010 16011 *Richard Levitte* 16012 16013 * New function BN_mod_exp_mont_word for small bases (roughly 15% 16014 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 16015 16016 *Bodo Moeller* 16017 16018 * CygWin32 support. 16019 16020 *John Jarvie <jjarvie@newsguy.com>* 16021 16022 * The type-safe stack code has been rejigged. It is now only compiled 16023 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 16024 by default all type-specific stack functions are "#define"d back to 16025 standard stack functions. This results in more streamlined output 16026 but retains the type-safety checking possibilities of the original 16027 approach. 16028 16029 *Geoff Thorpe* 16030 16031 * The STACK code has been cleaned up, and certain type declarations 16032 that didn't make a lot of sense have been brought in line. This has 16033 also involved a cleanup of sorts in safestack.h to more correctly 16034 map type-safe stack functions onto their plain stack counterparts. 16035 This work has also resulted in a variety of "const"ifications of 16036 lots of the code, especially `_cmp` operations which should normally 16037 be prototyped with "const" parameters anyway. 16038 16039 *Geoff Thorpe* 16040 16041 * When generating bytes for the first time in md_rand.c, 'stir the pool' 16042 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 16043 (The PRNG state consists of two parts, the large pool 'state' and 'md', 16044 where all of 'md' is used each time the PRNG is used, but 'state' 16045 is used only indexed by a cyclic counter. As entropy may not be 16046 well distributed from the beginning, 'md' is important as a 16047 chaining variable. However, the output function chains only half 16048 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 16049 all of 'md', and seeding with STATE_SIZE dummy bytes will result 16050 in all of 'state' being rewritten, with the new values depending 16051 on virtually all of 'md'. This overcomes the 80 bit limitation.) 16052 16053 *Bodo Moeller* 16054 16055 * In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 16056 the handshake is continued after ssl_verify_cert_chain(); 16057 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 16058 can lead to 'unexplainable' connection aborts later. 16059 16060 *Bodo Moeller; problem tracked down by Lutz Jaenicke* 16061 16062 * Major EVP API cipher revision. 16063 Add hooks for extra EVP features. This allows various cipher 16064 parameters to be set in the EVP interface. Support added for variable 16065 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 16066 setting of RC2 and RC5 parameters. 16067 16068 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 16069 ciphers. 16070 16071 Remove lots of duplicated code from the EVP library. For example *every* 16072 cipher init() function handles the 'iv' in the same way according to the 16073 cipher mode. They also all do nothing if the 'key' parameter is NULL and 16074 for CFB and OFB modes they zero ctx->num. 16075 16076 New functionality allows removal of S/MIME code RC2 hack. 16077 16078 Most of the routines have the same form and so can be declared in terms 16079 of macros. 16080 16081 By shifting this to the top level EVP_CipherInit() it can be removed from 16082 all individual ciphers. If the cipher wants to handle IVs or keys 16083 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 16084 flags. 16085 16086 Change lots of functions like EVP_EncryptUpdate() to now return a 16087 value: although software versions of the algorithms cannot fail 16088 any installed hardware versions can. 16089 16090 *Steve Henson* 16091 16092 * Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 16093 this option is set, tolerate broken clients that send the negotiated 16094 protocol version number instead of the requested protocol version 16095 number. 16096 16097 *Bodo Moeller* 16098 16099 * Call dh_tmp_cb (set by `..._TMP_DH_CB`) with correct 'is_export' flag; 16100 i.e. non-zero for export ciphersuites, zero otherwise. 16101 Previous versions had this flag inverted, inconsistent with 16102 rsa_tmp_cb (..._TMP_RSA_CB). 16103 16104 *Bodo Moeller; problem reported by Amit Chopra* 16105 16106 * Add missing DSA library text string. Work around for some IIS 16107 key files with invalid SEQUENCE encoding. 16108 16109 *Steve Henson* 16110 16111 * Add a document (doc/standards.txt) that list all kinds of standards 16112 and so on that are implemented in OpenSSL. 16113 16114 *Richard Levitte* 16115 16116 * Enhance c_rehash script. Old version would mishandle certificates 16117 with the same subject name hash and wouldn't handle CRLs at all. 16118 Added -fingerprint option to crl utility, to support new c_rehash 16119 features. 16120 16121 *Steve Henson* 16122 16123 * Eliminate non-ANSI declarations in crypto.h and stack.h. 16124 16125 *Ulf Möller* 16126 16127 * Fix for SSL server purpose checking. Server checking was 16128 rejecting certificates which had extended key usage present 16129 but no ssl client purpose. 16130 16131 *Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>* 16132 16133 * Make PKCS#12 code work with no password. The PKCS#12 spec 16134 is a little unclear about how a blank password is handled. 16135 Since the password in encoded as a BMPString with terminating 16136 double NULL a zero length password would end up as just the 16137 double NULL. However no password at all is different and is 16138 handled differently in the PKCS#12 key generation code. NS 16139 treats a blank password as zero length. MSIE treats it as no 16140 password on export: but it will try both on import. We now do 16141 the same: PKCS12_parse() tries zero length and no password if 16142 the password is set to "" or NULL (NULL is now a valid password: 16143 it wasn't before) as does the pkcs12 application. 16144 16145 *Steve Henson* 16146 16147 * Bugfixes in `apps/x509.c`: Avoid a memory leak; and don't use 16148 perror when PEM_read_bio_X509_REQ fails, the error message must 16149 be obtained from the error queue. 16150 16151 *Bodo Moeller* 16152 16153 * Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 16154 it in ERR_remove_state if appropriate, and change ERR_get_state 16155 accordingly to avoid race conditions (this is necessary because 16156 thread_hash is no longer constant once set). 16157 16158 *Bodo Moeller* 16159 16160 * Bugfix for linux-elf makefile.one. 16161 16162 *Ulf Möller* 16163 16164 * RSA_get_default_method() will now cause a default 16165 RSA_METHOD to be chosen if one doesn't exist already. 16166 Previously this was only set during a call to RSA_new() 16167 or RSA_new_method(NULL) meaning it was possible for 16168 RSA_get_default_method() to return NULL. 16169 16170 *Geoff Thorpe* 16171 16172 * Added native name translation to the existing DSO code 16173 that will convert (if the flag to do so is set) filenames 16174 that are sufficiently small and have no path information 16175 into a canonical native form. Eg. "blah" converted to 16176 "libblah.so" or "blah.dll" etc. 16177 16178 *Geoff Thorpe* 16179 16180 * New function ERR_error_string_n(e, buf, len) which is like 16181 ERR_error_string(e, buf), but writes at most 'len' bytes 16182 including the 0 terminator. For ERR_error_string_n, 'buf' 16183 may not be NULL. 16184 16185 *Damien Miller <djm@mindrot.org>, Bodo Moeller* 16186 16187 * CONF library reworked to become more general. A new CONF 16188 configuration file reader "class" is implemented as well as a 16189 new functions (`NCONF_*`, for "New CONF") to handle it. The now 16190 old `CONF_*` functions are still there, but are reimplemented to 16191 work in terms of the new functions. Also, a set of functions 16192 to handle the internal storage of the configuration data is 16193 provided to make it easier to write new configuration file 16194 reader "classes" (I can definitely see something reading a 16195 configuration file in XML format, for example), called `_CONF_*`, 16196 or "the configuration storage API"... 16197 16198 The new configuration file reading functions are: 16199 16200 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 16201 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 16202 16203 NCONF_default, NCONF_WIN32 16204 16205 NCONF_dump_fp, NCONF_dump_bio 16206 16207 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 16208 NCONF_new creates a new CONF object. This works in the same way 16209 as other interfaces in OpenSSL, like the BIO interface. 16210 `NCONF_dump_*` dump the internal storage of the configuration file, 16211 which is useful for debugging. All other functions take the same 16212 arguments as the old `CONF_*` functions with the exception of the 16213 first that must be a `CONF *` instead of a `LHASH *`. 16214 16215 To make it easier to use the new classes with the old `CONF_*` functions, 16216 the function CONF_set_default_method is provided. 16217 16218 *Richard Levitte* 16219 16220 * Add '-tls1' option to 'openssl ciphers', which was already 16221 mentioned in the documentation but had not been implemented. 16222 (This option is not yet really useful because even the additional 16223 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 16224 16225 *Bodo Moeller* 16226 16227 * Initial DSO code added into libcrypto for letting OpenSSL (and 16228 OpenSSL-based applications) load shared libraries and bind to 16229 them in a portable way. 16230 16231 *Geoff Thorpe, with contributions from Richard Levitte* 16232 16233### Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 16234 16235 * Make sure _lrotl and _lrotr are only used with MSVC. 16236 16237 * Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 16238 (the default implementation of RAND_status). 16239 16240 * Rename openssl x509 option '-crlext', which was added in 0.9.5, 16241 to '-clrext' (= clear extensions), as intended and documented. 16242 *Bodo Moeller; inconsistency pointed out by Michael Attili 16243 <attili@amaxo.com>* 16244 16245 * Fix for HMAC. It wasn't zeroing the rest of the block if the key length 16246 was larger than the MD block size. 16247 16248 *Steve Henson, pointed out by Yost William <YostW@tce.com>* 16249 16250 * Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 16251 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 16252 using the passed key: if the passed key was a private key the result 16253 of X509_print(), for example, would be to print out all the private key 16254 components. 16255 16256 *Steve Henson* 16257 16258 * des_quad_cksum() byte order bug fix. 16259 *Ulf Möller, using the problem description in krb4-0.9.7, where 16260 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>* 16261 16262 * Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 16263 discouraged. 16264 16265 *Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>* 16266 16267 * For easily testing in shell scripts whether some command 16268 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 16269 returns with exit code 0 iff no command of the given name is available. 16270 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 16271 the output goes to stdout and nothing is printed to stderr. 16272 Additional arguments are always ignored. 16273 16274 Since for each cipher there is a command of the same name, 16275 the 'no-cipher' compilation switches can be tested this way. 16276 16277 ('openssl no-XXX' is not able to detect pseudo-commands such 16278 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 16279 16280 *Bodo Moeller* 16281 16282 * Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 16283 16284 *Bodo Moeller* 16285 16286 * For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 16287 is set; it will be thrown away anyway because each handshake creates 16288 its own key. 16289 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 16290 to parameters -- in previous versions (since OpenSSL 0.9.3) the 16291 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning 16292 you effectively got SSL_OP_SINGLE_DH_USE when using this macro. 16293 16294 *Bodo Moeller* 16295 16296 * New s_client option -ign_eof: EOF at stdin is ignored, and 16297 'Q' and 'R' lose their special meanings (quit/renegotiate). 16298 This is part of what -quiet does; unlike -quiet, -ign_eof 16299 does not suppress any output. 16300 16301 *Richard Levitte* 16302 16303 * Add compatibility options to the purpose and trust code. The 16304 purpose X509_PURPOSE_ANY is "any purpose" which automatically 16305 accepts a certificate or CA, this was the previous behaviour, 16306 with all the associated security issues. 16307 16308 X509_TRUST_COMPAT is the old trust behaviour: only and 16309 automatically trust self signed roots in certificate store. A 16310 new trust setting X509_TRUST_DEFAULT is used to specify that 16311 a purpose has no associated trust setting and it should instead 16312 use the value in the default purpose. 16313 16314 *Steve Henson* 16315 16316 * Fix the PKCS#8 DSA private key code so it decodes keys again 16317 and fix a memory leak. 16318 16319 *Steve Henson* 16320 16321 * In util/mkerr.pl (which implements 'make errors'), preserve 16322 reason strings from the previous version of the .c file, as 16323 the default to have only downcase letters (and digits) in 16324 automatically generated reasons codes is not always appropriate. 16325 16326 *Bodo Moeller* 16327 16328 * In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 16329 using strerror. Previously, ERR_reason_error_string() returned 16330 library names as reason strings for SYSerr; but SYSerr is a special 16331 case where small numbers are errno values, not library numbers. 16332 16333 *Bodo Moeller* 16334 16335 * Add '-dsaparam' option to 'openssl dhparam' application. This 16336 converts DSA parameters into DH parameters. (When creating parameters, 16337 DSA_generate_parameters is used.) 16338 16339 *Bodo Moeller* 16340 16341 * Include 'length' (recommended exponent length) in C code generated 16342 by 'openssl dhparam -C'. 16343 16344 *Bodo Moeller* 16345 16346 * The second argument to set_label in perlasm was already being used 16347 so couldn't be used as a "file scope" flag. Moved to third argument 16348 which was free. 16349 16350 *Steve Henson* 16351 16352 * In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 16353 instead of RAND_bytes for encryption IVs and salts. 16354 16355 *Bodo Moeller* 16356 16357 * Include RAND_status() into RAND_METHOD instead of implementing 16358 it only for md_rand.c Otherwise replacing the PRNG by calling 16359 RAND_set_rand_method would be impossible. 16360 16361 *Bodo Moeller* 16362 16363 * Don't let DSA_generate_key() enter an infinite loop if the random 16364 number generation fails. 16365 16366 *Bodo Moeller* 16367 16368 * New 'rand' application for creating pseudo-random output. 16369 16370 *Bodo Moeller* 16371 16372 * Added configuration support for Linux/IA64 16373 16374 *Rolf Haberrecker <rolf@suse.de>* 16375 16376 * Assembler module support for Mingw32. 16377 16378 *Ulf Möller* 16379 16380 * Shared library support for HPUX (in shlib/). 16381 16382 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous* 16383 16384 * Shared library support for Solaris gcc. 16385 16386 *Lutz Behnke <behnke@trustcenter.de>* 16387 16388### Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 16389 16390 * PKCS7_encrypt() was adding text MIME headers twice because they 16391 were added manually and by SMIME_crlf_copy(). 16392 16393 *Steve Henson* 16394 16395 * In bntest.c don't call BN_rand with zero bits argument. 16396 16397 *Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>* 16398 16399 * BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 16400 case was implemented. This caused BN_div_recp() to fail occasionally. 16401 16402 *Ulf Möller* 16403 16404 * Add an optional second argument to the set_label() in the perl 16405 assembly language builder. If this argument exists and is set 16406 to 1 it signals that the assembler should use a symbol whose 16407 scope is the entire file, not just the current function. This 16408 is needed with MASM which uses the format label:: for this scope. 16409 16410 *Steve Henson, pointed out by Peter Runestig <peter@runestig.com>* 16411 16412 * Change the ASN1 types so they are typedefs by default. Before 16413 almost all types were #define'd to ASN1_STRING which was causing 16414 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 16415 for example. 16416 16417 *Steve Henson* 16418 16419 * Change names of new functions to the new get1/get0 naming 16420 convention: After 'get1', the caller owns a reference count 16421 and has to call `..._free`; 'get0' returns a pointer to some 16422 data structure without incrementing reference counters. 16423 (Some of the existing 'get' functions increment a reference 16424 counter, some don't.) 16425 Similarly, 'set1' and 'add1' functions increase reference 16426 counters or duplicate objects. 16427 16428 *Steve Henson* 16429 16430 * Allow for the possibility of temp RSA key generation failure: 16431 the code used to assume it always worked and crashed on failure. 16432 16433 *Steve Henson* 16434 16435 * Fix potential buffer overrun problem in BIO_printf(). 16436 *Ulf Möller, using public domain code by Patrick Powell; problem 16437 pointed out by David Sacerdote <das33@cornell.edu>* 16438 16439 * Support EGD <http://www.lothar.com/tech/crypto/>. New functions 16440 RAND_egd() and RAND_status(). In the command line application, 16441 the EGD socket can be specified like a seed file using RANDFILE 16442 or -rand. 16443 16444 *Ulf Möller* 16445 16446 * Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 16447 Some CAs (e.g. Verisign) distribute certificates in this form. 16448 16449 *Steve Henson* 16450 16451 * Remove the SSL_ALLOW_ADH compile option and set the default cipher 16452 list to exclude them. This means that no special compilation option 16453 is needed to use anonymous DH: it just needs to be included in the 16454 cipher list. 16455 16456 *Steve Henson* 16457 16458 * Change the EVP_MD_CTX_type macro so its meaning consistent with 16459 EVP_MD_type. The old functionality is available in a new macro called 16460 EVP_MD_md(). Change code that uses it and update docs. 16461 16462 *Steve Henson* 16463 16464 * `..._ctrl` functions now have corresponding `..._callback_ctrl` functions 16465 where the `void *` argument is replaced by a function pointer argument. 16466 Previously `void *` was abused to point to functions, which works on 16467 many platforms, but is not correct. As these functions are usually 16468 called by macros defined in OpenSSL header files, most source code 16469 should work without changes. 16470 16471 *Richard Levitte* 16472 16473 * `<openssl/opensslconf.h>` (which is created by Configure) now contains 16474 sections with information on -D... compiler switches used for 16475 compiling the library so that applications can see them. To enable 16476 one of these sections, a pre-processor symbol `OPENSSL_..._DEFINES` 16477 must be defined. E.g., 16478 #define OPENSSL_ALGORITHM_DEFINES 16479 #include <openssl/opensslconf.h> 16480 defines all pertinent `NO_<algo>` symbols, such as NO_IDEA, NO_RSA, etc. 16481 16482 *Richard Levitte, Ulf and Bodo Möller* 16483 16484 * Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 16485 record layer. 16486 16487 *Bodo Moeller* 16488 16489 * Change the 'other' type in certificate aux info to a STACK_OF 16490 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 16491 the required ASN1 format: arbitrary types determined by an OID. 16492 16493 *Steve Henson* 16494 16495 * Add some PEM_write_X509_REQ_NEW() functions and a command line 16496 argument to 'req'. This is not because the function is newer or 16497 better than others it just uses the work 'NEW' in the certificate 16498 request header lines. Some software needs this. 16499 16500 *Steve Henson* 16501 16502 * Reorganise password command line arguments: now passwords can be 16503 obtained from various sources. Delete the PEM_cb function and make 16504 it the default behaviour: i.e. if the callback is NULL and the 16505 usrdata argument is not NULL interpret it as a null terminated pass 16506 phrase. If usrdata and the callback are NULL then the pass phrase 16507 is prompted for as usual. 16508 16509 *Steve Henson* 16510 16511 * Add support for the Compaq Atalla crypto accelerator. If it is installed, 16512 the support is automatically enabled. The resulting binaries will 16513 autodetect the card and use it if present. 16514 16515 *Ben Laurie and Compaq Inc.* 16516 16517 * Work around for Netscape hang bug. This sends certificate request 16518 and server done in one record. Since this is perfectly legal in the 16519 SSL/TLS protocol it isn't a "bug" option and is on by default. See 16520 the bugs/SSLv3 entry for more info. 16521 16522 *Steve Henson* 16523 16524 * HP-UX tune-up: new unified configs, HP C compiler bug workaround. 16525 16526 *Andy Polyakov* 16527 16528 * Add -rand argument to smime and pkcs12 applications and read/write 16529 of seed file. 16530 16531 *Steve Henson* 16532 16533 * New 'passwd' tool for crypt(3) and apr1 password hashes. 16534 16535 *Bodo Moeller* 16536 16537 * Add command line password options to the remaining applications. 16538 16539 *Steve Henson* 16540 16541 * Bug fix for BN_div_recp() for numerators with an even number of 16542 bits. 16543 16544 *Ulf Möller* 16545 16546 * More tests in bntest.c, and changed test_bn output. 16547 16548 *Ulf Möller* 16549 16550 * ./config recognizes MacOS X now. 16551 16552 *Andy Polyakov* 16553 16554 * Bug fix for BN_div() when the first words of num and divisor are 16555 equal (it gave wrong results if `(rem=(n1-q*d0)&BN_MASK2) < d0)`. 16556 16557 *Ulf Möller* 16558 16559 * Add support for various broken PKCS#8 formats, and command line 16560 options to produce them. 16561 16562 *Steve Henson* 16563 16564 * New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 16565 get temporary BIGNUMs from a BN_CTX. 16566 16567 *Ulf Möller* 16568 16569 * Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 16570 for p == 0. 16571 16572 *Ulf Möller* 16573 16574 * Change the `SSLeay_add_all_*()` functions to `OpenSSL_add_all_*()` and 16575 include a #define from the old name to the new. The original intent 16576 was that statically linked binaries could for example just call 16577 SSLeay_add_all_ciphers() to just add ciphers to the table and not 16578 link with digests. This never worked because SSLeay_add_all_digests() 16579 and SSLeay_add_all_ciphers() were in the same source file so calling 16580 one would link with the other. They are now in separate source files. 16581 16582 *Steve Henson* 16583 16584 * Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 16585 16586 *Steve Henson* 16587 16588 * Use a less unusual form of the Miller-Rabin primality test (it used 16589 a binary algorithm for exponentiation integrated into the Miller-Rabin 16590 loop, our standard modexp algorithms are faster). 16591 16592 *Bodo Moeller* 16593 16594 * Support for the EBCDIC character set completed. 16595 16596 *Martin Kraemer <Martin.Kraemer@Mch.SNI.De>* 16597 16598 * Source code cleanups: use const where appropriate, eliminate casts, 16599 use `void *` instead of `char *` in lhash. 16600 16601 *Ulf Möller* 16602 16603 * Bugfix: ssl3_send_server_key_exchange was not restartable 16604 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 16605 this the server could overwrite ephemeral keys that the client 16606 has already seen). 16607 16608 *Bodo Moeller* 16609 16610 * Turn DSA_is_prime into a macro that calls BN_is_prime, 16611 using 50 iterations of the Rabin-Miller test. 16612 16613 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 16614 iterations of the Rabin-Miller test as required by the appendix 16615 to FIPS PUB 186[-1]) instead of DSA_is_prime. 16616 As BN_is_prime_fasttest includes trial division, DSA parameter 16617 generation becomes much faster. 16618 16619 This implies a change for the callback functions in DSA_is_prime 16620 and DSA_generate_parameters: The callback function is called once 16621 for each positive witness in the Rabin-Miller test, not just 16622 occasionally in the inner loop; and the parameters to the 16623 callback function now provide an iteration count for the outer 16624 loop rather than for the current invocation of the inner loop. 16625 DSA_generate_parameters additionally can call the callback 16626 function with an 'iteration count' of -1, meaning that a 16627 candidate has passed the trial division test (when q is generated 16628 from an application-provided seed, trial division is skipped). 16629 16630 *Bodo Moeller* 16631 16632 * New function BN_is_prime_fasttest that optionally does trial 16633 division before starting the Rabin-Miller test and has 16634 an additional BN_CTX * argument (whereas BN_is_prime always 16635 has to allocate at least one BN_CTX). 16636 'callback(1, -1, cb_arg)' is called when a number has passed the 16637 trial division stage. 16638 16639 *Bodo Moeller* 16640 16641 * Fix for bug in CRL encoding. The validity dates weren't being handled 16642 as ASN1_TIME. 16643 16644 *Steve Henson* 16645 16646 * New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 16647 16648 *Steve Henson* 16649 16650 * New function BN_pseudo_rand(). 16651 16652 *Ulf Möller* 16653 16654 * Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 16655 bignum version of BN_from_montgomery() with the working code from 16656 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 16657 the comments. 16658 16659 *Ulf Möller* 16660 16661 * Avoid a race condition in s2_clnt.c (function get_server_hello) that 16662 made it impossible to use the same SSL_SESSION data structure in 16663 SSL2 clients in multiple threads. 16664 16665 *Bodo Moeller* 16666 16667 * The return value of RAND_load_file() no longer counts bytes obtained 16668 by stat(). RAND_load_file(..., -1) is new and uses the complete file 16669 to seed the PRNG (previously an explicit byte count was required). 16670 16671 *Ulf Möller, Bodo Möller* 16672 16673 * Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 16674 used `char *` instead of `void *` and had casts all over the place. 16675 16676 *Steve Henson* 16677 16678 * Make BN_generate_prime() return NULL on error if ret!=NULL. 16679 16680 *Ulf Möller* 16681 16682 * Retain source code compatibility for BN_prime_checks macro: 16683 BN_is_prime(..., BN_prime_checks, ...) now uses 16684 BN_prime_checks_for_size to determine the appropriate number of 16685 Rabin-Miller iterations. 16686 16687 *Ulf Möller* 16688 16689 * Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 16690 DH_CHECK_P_NOT_SAFE_PRIME. 16691 (Check if this is true? OpenPGP calls them "strong".) 16692 16693 *Ulf Möller* 16694 16695 * Merge the functionality of "dh" and "gendh" programs into a new program 16696 "dhparam". The old programs are retained for now but will handle DH keys 16697 (instead of parameters) in future. 16698 16699 *Steve Henson* 16700 16701 * Make the ciphers, s_server and s_client programs check the return values 16702 when a new cipher list is set. 16703 16704 *Steve Henson* 16705 16706 * Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 16707 ciphers. Before when the 56bit ciphers were enabled the sorting was 16708 wrong. 16709 16710 The syntax for the cipher sorting has been extended to support sorting by 16711 cipher-strength (using the strength_bits hard coded in the tables). 16712 The new command is `@STRENGTH` (see also `doc/apps/ciphers.pod`). 16713 16714 Fix a bug in the cipher-command parser: when supplying a cipher command 16715 string with an "undefined" symbol (neither command nor alphanumeric 16716 *A-Za-z0-9*, ssl_set_cipher_list used to hang in an endless loop. Now 16717 an error is flagged. 16718 16719 Due to the strength-sorting extension, the code of the 16720 ssl_create_cipher_list() function was completely rearranged. I hope that 16721 the readability was also increased :-) 16722 16723 *Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>* 16724 16725 * Minor change to 'x509' utility. The -CAcreateserial option now uses 1 16726 for the first serial number and places 2 in the serial number file. This 16727 avoids problems when the root CA is created with serial number zero and 16728 the first user certificate has the same issuer name and serial number 16729 as the root CA. 16730 16731 *Steve Henson* 16732 16733 * Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 16734 the new code. Add documentation for this stuff. 16735 16736 *Steve Henson* 16737 16738 * Changes to X509_ATTRIBUTE utilities. These have been renamed from 16739 `X509_*()` to `X509at_*()` on the grounds that they don't handle X509 16740 structures and behave in an analogous way to the X509v3 functions: 16741 they shouldn't be called directly but wrapper functions should be used 16742 instead. 16743 16744 So we also now have some wrapper functions that call the X509at functions 16745 when passed certificate requests. (TO DO: similar things can be done with 16746 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 16747 things. Some of these need some d2i or i2d and print functionality 16748 because they handle more complex structures.) 16749 16750 *Steve Henson* 16751 16752 * Add missing #ifndefs that caused missing symbols when building libssl 16753 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 16754 NO_RSA in `ssl/s2*.c`. 16755 16756 *Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller* 16757 16758 * Precautions against using the PRNG uninitialized: RAND_bytes() now 16759 has a return value which indicates the quality of the random data 16760 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 16761 error queue. New function RAND_pseudo_bytes() generates output that is 16762 guaranteed to be unique but not unpredictable. RAND_add is like 16763 RAND_seed, but takes an extra argument for an entropy estimate 16764 (RAND_seed always assumes full entropy). 16765 16766 *Ulf Möller* 16767 16768 * Do more iterations of Rabin-Miller probable prime test (specifically, 16769 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 16770 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 16771 in crypto/bn/bn_prime.c for the complete table). This guarantees a 16772 false-positive rate of at most 2^-80 for random input. 16773 16774 *Bodo Moeller* 16775 16776 * Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 16777 16778 *Bodo Moeller* 16779 16780 * New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 16781 in the 0.9.5 release), this returns the chain 16782 from an X509_CTX structure with a dup of the stack and all 16783 the X509 reference counts upped: so the stack will exist 16784 after X509_CTX_cleanup() has been called. Modify pkcs12.c 16785 to use this. 16786 16787 Also make SSL_SESSION_print() print out the verify return 16788 code. 16789 16790 *Steve Henson* 16791 16792 * Add manpage for the pkcs12 command. Also change the default 16793 behaviour so MAC iteration counts are used unless the new 16794 -nomaciter option is used. This improves file security and 16795 only older versions of MSIE (4.0 for example) need it. 16796 16797 *Steve Henson* 16798 16799 * Honor the no-xxx Configure options when creating .DEF files. 16800 16801 *Ulf Möller* 16802 16803 * Add PKCS#10 attributes to field table: challengePassword, 16804 unstructuredName and unstructuredAddress. These are taken from 16805 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 16806 international characters are used. 16807 16808 More changes to X509_ATTRIBUTE code: allow the setting of types 16809 based on strings. Remove the 'loc' parameter when adding 16810 attributes because these will be a SET OF encoding which is sorted 16811 in ASN1 order. 16812 16813 *Steve Henson* 16814 16815 * Initial changes to the 'req' utility to allow request generation 16816 automation. This will allow an application to just generate a template 16817 file containing all the field values and have req construct the 16818 request. 16819 16820 Initial support for X509_ATTRIBUTE handling. Stacks of these are 16821 used all over the place including certificate requests and PKCS#7 16822 structures. They are currently handled manually where necessary with 16823 some primitive wrappers for PKCS#7. The new functions behave in a 16824 manner analogous to the X509 extension functions: they allow 16825 attributes to be looked up by NID and added. 16826 16827 Later something similar to the X509V3 code would be desirable to 16828 automatically handle the encoding, decoding and printing of the 16829 more complex types. The string types like challengePassword can 16830 be handled by the string table functions. 16831 16832 Also modified the multi byte string table handling. Now there is 16833 a 'global mask' which masks out certain types. The table itself 16834 can use the flag STABLE_NO_MASK to ignore the mask setting: this 16835 is useful when for example there is only one permissible type 16836 (as in countryName) and using the mask might result in no valid 16837 types at all. 16838 16839 *Steve Henson* 16840 16841 * Clean up 'Finished' handling, and add functions SSL_get_finished and 16842 SSL_get_peer_finished to allow applications to obtain the latest 16843 Finished messages sent to the peer or expected from the peer, 16844 respectively. (SSL_get_peer_finished is usually the Finished message 16845 actually received from the peer, otherwise the protocol will be aborted.) 16846 16847 As the Finished message are message digests of the complete handshake 16848 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 16849 be used for external authentication procedures when the authentication 16850 provided by SSL/TLS is not desired or is not enough. 16851 16852 *Bodo Moeller* 16853 16854 * Enhanced support for Alpha Linux is added. Now ./config checks if 16855 the host supports BWX extension and if Compaq C is present on the 16856 $PATH. Just exploiting of the BWX extension results in 20-30% 16857 performance kick for some algorithms, e.g. DES and RC4 to mention 16858 a couple. Compaq C in turn generates ~20% faster code for MD5 and 16859 SHA1. 16860 16861 *Andy Polyakov* 16862 16863 * Add support for MS "fast SGC". This is arguably a violation of the 16864 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 16865 weak crypto and after checking the certificate is SGC a second one 16866 with strong crypto. MS SGC stops the first handshake after receiving 16867 the server certificate message and sends a second client hello. Since 16868 a server will typically do all the time consuming operations before 16869 expecting any further messages from the client (server key exchange 16870 is the most expensive) there is little difference between the two. 16871 16872 To get OpenSSL to support MS SGC we have to permit a second client 16873 hello message after we have sent server done. In addition we have to 16874 reset the MAC if we do get this second client hello. 16875 16876 *Steve Henson* 16877 16878 * Add a function 'd2i_AutoPrivateKey()' this will automatically decide 16879 if a DER encoded private key is RSA or DSA traditional format. Changed 16880 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 16881 format DER encoded private key. Newer code should use PKCS#8 format which 16882 has the key type encoded in the ASN1 structure. Added DER private key 16883 support to pkcs8 application. 16884 16885 *Steve Henson* 16886 16887 * SSL 3/TLS 1 servers now don't request certificates when an anonymous 16888 ciphersuites has been selected (as required by the SSL 3/TLS 1 16889 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 16890 is set, we interpret this as a request to violate the specification 16891 (the worst that can happen is a handshake failure, and 'correct' 16892 behaviour would result in a handshake failure anyway). 16893 16894 *Bodo Moeller* 16895 16896 * In SSL_CTX_add_session, take into account that there might be multiple 16897 SSL_SESSION structures with the same session ID (e.g. when two threads 16898 concurrently obtain them from an external cache). 16899 The internal cache can handle only one SSL_SESSION with a given ID, 16900 so if there's a conflict, we now throw out the old one to achieve 16901 consistency. 16902 16903 *Bodo Moeller* 16904 16905 * Add OIDs for idea and blowfish in CBC mode. This will allow both 16906 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 16907 some routines that use cipher OIDs: some ciphers do not have OIDs 16908 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 16909 example. 16910 16911 *Steve Henson* 16912 16913 * Simplify the trust setting structure and code. Now we just have 16914 two sequences of OIDs for trusted and rejected settings. These will 16915 typically have values the same as the extended key usage extension 16916 and any application specific purposes. 16917 16918 The trust checking code now has a default behaviour: it will just 16919 check for an object with the same NID as the passed id. Functions can 16920 be provided to override either the default behaviour or the behaviour 16921 for a given id. SSL client, server and email already have functions 16922 in place for compatibility: they check the NID and also return "trusted" 16923 if the certificate is self signed. 16924 16925 *Steve Henson* 16926 16927 * Add d2i,i2d bio/fp functions for PrivateKey: these convert the 16928 traditional format into an EVP_PKEY structure. 16929 16930 *Steve Henson* 16931 16932 * Add a password callback function PEM_cb() which either prompts for 16933 a password if usr_data is NULL or otherwise assumes it is a null 16934 terminated password. Allow passwords to be passed on command line 16935 environment or config files in a few more utilities. 16936 16937 *Steve Henson* 16938 16939 * Add a bunch of DER and PEM functions to handle PKCS#8 format private 16940 keys. Add some short names for PKCS#8 PBE algorithms and allow them 16941 to be specified on the command line for the pkcs8 and pkcs12 utilities. 16942 Update documentation. 16943 16944 *Steve Henson* 16945 16946 * Support for ASN1 "NULL" type. This could be handled before by using 16947 ASN1_TYPE but there wasn't any function that would try to read a NULL 16948 and produce an error if it couldn't. For compatibility we also have 16949 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 16950 don't allocate anything because they don't need to. 16951 16952 *Steve Henson* 16953 16954 * Initial support for MacOS is now provided. Examine INSTALL.MacOS 16955 for details. 16956 16957 *Andy Polyakov, Roy Woods <roy@centicsystems.ca>* 16958 16959 * Rebuild of the memory allocation routines used by OpenSSL code and 16960 possibly others as well. The purpose is to make an interface that 16961 provide hooks so anyone can build a separate set of allocation and 16962 deallocation routines to be used by OpenSSL, for example memory 16963 pool implementations, or something else, which was previously hard 16964 since Malloc(), Realloc() and Free() were defined as macros having 16965 the values malloc, realloc and free, respectively (except for Win32 16966 compilations). The same is provided for memory debugging code. 16967 OpenSSL already comes with functionality to find memory leaks, but 16968 this gives people a chance to debug other memory problems. 16969 16970 With these changes, a new set of functions and macros have appeared: 16971 16972 CRYPTO_set_mem_debug_functions() [F] 16973 CRYPTO_get_mem_debug_functions() [F] 16974 CRYPTO_dbg_set_options() [F] 16975 CRYPTO_dbg_get_options() [F] 16976 CRYPTO_malloc_debug_init() [M] 16977 16978 The memory debug functions are NULL by default, unless the library 16979 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 16980 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 16981 gives the standard debugging functions that come with OpenSSL) or 16982 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 16983 provided by the library user) must be used. When the standard 16984 debugging functions are used, CRYPTO_dbg_set_options can be used to 16985 request additional information: 16986 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 16987 the CRYPTO_MDEBUG_xxx macro when compiling the library. 16988 16989 Also, things like CRYPTO_set_mem_functions will always give the 16990 expected result (the new set of functions is used for allocation 16991 and deallocation) at all times, regardless of platform and compiler 16992 options. 16993 16994 To finish it up, some functions that were never use in any other 16995 way than through macros have a new API and new semantic: 16996 16997 CRYPTO_dbg_malloc() 16998 CRYPTO_dbg_realloc() 16999 CRYPTO_dbg_free() 17000 17001 All macros of value have retained their old syntax. 17002 17003 *Richard Levitte and Bodo Moeller* 17004 17005 * Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 17006 ordering of SMIMECapabilities wasn't in "strength order" and there 17007 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 17008 algorithm. 17009 17010 *Steve Henson* 17011 17012 * Some ASN1 types with illegal zero length encoding (INTEGER, 17013 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 17014 17015 *Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson* 17016 17017 * Merge in my S/MIME library for OpenSSL. This provides a simple 17018 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 17019 functionality to handle multipart/signed properly) and a utility 17020 called 'smime' to call all this stuff. This is based on code I 17021 originally wrote for Celo who have kindly allowed it to be 17022 included in OpenSSL. 17023 17024 *Steve Henson* 17025 17026 * Add variants des_set_key_checked and des_set_key_unchecked of 17027 des_set_key (aka des_key_sched). Global variable des_check_key 17028 decides which of these is called by des_set_key; this way 17029 des_check_key behaves as it always did, but applications and 17030 the library itself, which was buggy for des_check_key == 1, 17031 have a cleaner way to pick the version they need. 17032 17033 *Bodo Moeller* 17034 17035 * New function PKCS12_newpass() which changes the password of a 17036 PKCS12 structure. 17037 17038 *Steve Henson* 17039 17040 * Modify X509_TRUST and X509_PURPOSE so it also uses a static and 17041 dynamic mix. In both cases the ids can be used as an index into the 17042 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 17043 functions so they accept a list of the field values and the 17044 application doesn't need to directly manipulate the X509_TRUST 17045 structure. 17046 17047 *Steve Henson* 17048 17049 * Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 17050 need initialising. 17051 17052 *Steve Henson* 17053 17054 * Modify the way the V3 extension code looks up extensions. This now 17055 works in a similar way to the object code: we have some "standard" 17056 extensions in a static table which is searched with OBJ_bsearch() 17057 and the application can add dynamic ones if needed. The file 17058 crypto/x509v3/ext_dat.h now has the info: this file needs to be 17059 updated whenever a new extension is added to the core code and kept 17060 in ext_nid order. There is a simple program 'tabtest.c' which checks 17061 this. New extensions are not added too often so this file can readily 17062 be maintained manually. 17063 17064 There are two big advantages in doing things this way. The extensions 17065 can be looked up immediately and no longer need to be "added" using 17066 X509V3_add_standard_extensions(): this function now does nothing. 17067 Side note: I get *lots* of email saying the extension code doesn't 17068 work because people forget to call this function. 17069 Also no dynamic allocation is done unless new extensions are added: 17070 so if we don't add custom extensions there is no need to call 17071 X509V3_EXT_cleanup(). 17072 17073 *Steve Henson* 17074 17075 * Modify enc utility's salting as follows: make salting the default. Add a 17076 magic header, so unsalted files fail gracefully instead of just decrypting 17077 to garbage. This is because not salting is a big security hole, so people 17078 should be discouraged from doing it. 17079 17080 *Ben Laurie* 17081 17082 * Fixes and enhancements to the 'x509' utility. It allowed a message 17083 digest to be passed on the command line but it only used this 17084 parameter when signing a certificate. Modified so all relevant 17085 operations are affected by the digest parameter including the 17086 -fingerprint and -x509toreq options. Also -x509toreq choked if a 17087 DSA key was used because it didn't fix the digest. 17088 17089 *Steve Henson* 17090 17091 * Initial certificate chain verify code. Currently tests the untrusted 17092 certificates for consistency with the verify purpose (which is set 17093 when the X509_STORE_CTX structure is set up) and checks the pathlength. 17094 17095 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 17096 this is because it will reject chains with invalid extensions whereas 17097 every previous version of OpenSSL and SSLeay made no checks at all. 17098 17099 Trust code: checks the root CA for the relevant trust settings. Trust 17100 settings have an initial value consistent with the verify purpose: e.g. 17101 if the verify purpose is for SSL client use it expects the CA to be 17102 trusted for SSL client use. However the default value can be changed to 17103 permit custom trust settings: one example of this would be to only trust 17104 certificates from a specific "secure" set of CAs. 17105 17106 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 17107 which should be used for version portability: especially since the 17108 verify structure is likely to change more often now. 17109 17110 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 17111 to set them. If not set then assume SSL clients will verify SSL servers 17112 and vice versa. 17113 17114 Two new options to the verify program: -untrusted allows a set of 17115 untrusted certificates to be passed in and -purpose which sets the 17116 intended purpose of the certificate. If a purpose is set then the 17117 new chain verify code is used to check extension consistency. 17118 17119 *Steve Henson* 17120 17121 * Support for the authority information access extension. 17122 17123 *Steve Henson* 17124 17125 * Modify RSA and DSA PEM read routines to transparently handle 17126 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 17127 public keys in a format compatible with certificate 17128 SubjectPublicKeyInfo structures. Unfortunately there were already 17129 functions called *_PublicKey_* which used various odd formats so 17130 these are retained for compatibility: however the DSA variants were 17131 never in a public release so they have been deleted. Changed dsa/rsa 17132 utilities to handle the new format: note no releases ever handled public 17133 keys so we should be OK. 17134 17135 The primary motivation for this change is to avoid the same fiasco 17136 that dogs private keys: there are several incompatible private key 17137 formats some of which are standard and some OpenSSL specific and 17138 require various evil hacks to allow partial transparent handling and 17139 even then it doesn't work with DER formats. Given the option anything 17140 other than PKCS#8 should be dumped: but the other formats have to 17141 stay in the name of compatibility. 17142 17143 With public keys and the benefit of hindsight one standard format 17144 is used which works with EVP_PKEY, RSA or DSA structures: though 17145 it clearly returns an error if you try to read the wrong kind of key. 17146 17147 Added a -pubkey option to the 'x509' utility to output the public key. 17148 Also rename the `EVP_PKEY_get_*()` to `EVP_PKEY_rget_*()` 17149 (renamed to `EVP_PKEY_get1_*()` in the OpenSSL 0.9.5 release) and add 17150 `EVP_PKEY_rset_*()` functions (renamed to `EVP_PKEY_set1_*()`) 17151 that do the same as the `EVP_PKEY_assign_*()` except they up the 17152 reference count of the added key (they don't "swallow" the 17153 supplied key). 17154 17155 *Steve Henson* 17156 17157 * Fixes to crypto/x509/by_file.c the code to read in certificates and 17158 CRLs would fail if the file contained no certificates or no CRLs: 17159 added a new function to read in both types and return the number 17160 read: this means that if none are read it will be an error. The 17161 DER versions of the certificate and CRL reader would always fail 17162 because it isn't possible to mix certificates and CRLs in DER format 17163 without choking one or the other routine. Changed this to just read 17164 a certificate: this is the best we can do. Also modified the code 17165 in `apps/verify.c` to take notice of return codes: it was previously 17166 attempting to read in certificates from NULL pointers and ignoring 17167 any errors: this is one reason why the cert and CRL reader seemed 17168 to work. It doesn't check return codes from the default certificate 17169 routines: these may well fail if the certificates aren't installed. 17170 17171 *Steve Henson* 17172 17173 * Code to support otherName option in GeneralName. 17174 17175 *Steve Henson* 17176 17177 * First update to verify code. Change the verify utility 17178 so it warns if it is passed a self signed certificate: 17179 for consistency with the normal behaviour. X509_verify 17180 has been modified to it will now verify a self signed 17181 certificate if *exactly* the same certificate appears 17182 in the store: it was previously impossible to trust a 17183 single self signed certificate. This means that: 17184 openssl verify ss.pem 17185 now gives a warning about a self signed certificate but 17186 openssl verify -CAfile ss.pem ss.pem 17187 is OK. 17188 17189 *Steve Henson* 17190 17191 * For servers, store verify_result in SSL_SESSION data structure 17192 (and add it to external session representation). 17193 This is needed when client certificate verifications fails, 17194 but an application-provided verification callback (set by 17195 SSL_CTX_set_cert_verify_callback) allows accepting the session 17196 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 17197 but returns 1): When the session is reused, we have to set 17198 ssl->verify_result to the appropriate error code to avoid 17199 security holes. 17200 17201 *Bodo Moeller, problem pointed out by Lutz Jaenicke* 17202 17203 * Fix a bug in the new PKCS#7 code: it didn't consider the 17204 case in PKCS7_dataInit() where the signed PKCS7 structure 17205 didn't contain any existing data because it was being created. 17206 17207 *Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson* 17208 17209 * Add a salt to the key derivation routines in enc.c. This 17210 forms the first 8 bytes of the encrypted file. Also add a 17211 -S option to allow a salt to be input on the command line. 17212 17213 *Steve Henson* 17214 17215 * New function X509_cmp(). Oddly enough there wasn't a function 17216 to compare two certificates. We do this by working out the SHA1 17217 hash and comparing that. X509_cmp() will be needed by the trust 17218 code. 17219 17220 *Steve Henson* 17221 17222 * SSL_get1_session() is like SSL_get_session(), but increments 17223 the reference count in the SSL_SESSION returned. 17224 17225 *Geoff Thorpe <geoff@eu.c2.net>* 17226 17227 * Fix for 'req': it was adding a null to request attributes. 17228 Also change the X509_LOOKUP and X509_INFO code to handle 17229 certificate auxiliary information. 17230 17231 *Steve Henson* 17232 17233 * Add support for 40 and 64 bit RC2 and RC4 algorithms: document 17234 the 'enc' command. 17235 17236 *Steve Henson* 17237 17238 * Add the possibility to add extra information to the memory leak 17239 detecting output, to form tracebacks, showing from where each 17240 allocation was originated: CRYPTO_push_info("constant string") adds 17241 the string plus current file name and line number to a per-thread 17242 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 17243 is like calling CYRPTO_pop_info() until the stack is empty. 17244 Also updated memory leak detection code to be multi-thread-safe. 17245 17246 *Richard Levitte* 17247 17248 * Add options -text and -noout to pkcs7 utility and delete the 17249 encryption options which never did anything. Update docs. 17250 17251 *Steve Henson* 17252 17253 * Add options to some of the utilities to allow the pass phrase 17254 to be included on either the command line (not recommended on 17255 OSes like Unix) or read from the environment. Update the 17256 manpages and fix a few bugs. 17257 17258 *Steve Henson* 17259 17260 * Add a few manpages for some of the openssl commands. 17261 17262 *Steve Henson* 17263 17264 * Fix the -revoke option in ca. It was freeing up memory twice, 17265 leaking and not finding already revoked certificates. 17266 17267 *Steve Henson* 17268 17269 * Extensive changes to support certificate auxiliary information. 17270 This involves the use of X509_CERT_AUX structure and X509_AUX 17271 functions. An X509_AUX function such as PEM_read_X509_AUX() 17272 can still read in a certificate file in the usual way but it 17273 will also read in any additional "auxiliary information". By 17274 doing things this way a fair degree of compatibility can be 17275 retained: existing certificates can have this information added 17276 using the new 'x509' options. 17277 17278 Current auxiliary information includes an "alias" and some trust 17279 settings. The trust settings will ultimately be used in enhanced 17280 certificate chain verification routines: currently a certificate 17281 can only be trusted if it is self signed and then it is trusted 17282 for all purposes. 17283 17284 *Steve Henson* 17285 17286 * Fix assembler for Alpha (tested only on DEC OSF not Linux or `*BSD`). 17287 The problem was that one of the replacement routines had not been working 17288 since SSLeay releases. For now the offending routine has been replaced 17289 with non-optimised assembler. Even so, this now gives around 95% 17290 performance improvement for 1024 bit RSA signs. 17291 17292 *Mark Cox* 17293 17294 * Hack to fix PKCS#7 decryption when used with some unorthodox RC2 17295 handling. Most clients have the effective key size in bits equal to 17296 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 17297 A few however don't do this and instead use the size of the decrypted key 17298 to determine the RC2 key length and the AlgorithmIdentifier to determine 17299 the effective key length. In this case the effective key length can still 17300 be 40 bits but the key length can be 168 bits for example. This is fixed 17301 by manually forcing an RC2 key into the EVP_PKEY structure because the 17302 EVP code can't currently handle unusual RC2 key sizes: it always assumes 17303 the key length and effective key length are equal. 17304 17305 *Steve Henson* 17306 17307 * Add a bunch of functions that should simplify the creation of 17308 X509_NAME structures. Now you should be able to do: 17309 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 17310 and have it automatically work out the correct field type and fill in 17311 the structures. The more adventurous can try: 17312 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 17313 and it will (hopefully) work out the correct multibyte encoding. 17314 17315 *Steve Henson* 17316 17317 * Change the 'req' utility to use the new field handling and multibyte 17318 copy routines. Before the DN field creation was handled in an ad hoc 17319 way in req, ca, and x509 which was rather broken and didn't support 17320 BMPStrings or UTF8Strings. Since some software doesn't implement 17321 BMPStrings or UTF8Strings yet, they can be enabled using the config file 17322 using the dirstring_type option. See the new comment in the default 17323 openssl.cnf for more info. 17324 17325 *Steve Henson* 17326 17327 * Make crypto/rand/md_rand.c more robust: 17328 - Assure unique random numbers after fork(). 17329 - Make sure that concurrent threads access the global counter and 17330 md serializably so that we never lose entropy in them 17331 or use exactly the same state in multiple threads. 17332 Access to the large state is not always serializable because 17333 the additional locking could be a performance killer, and 17334 md should be large enough anyway. 17335 17336 *Bodo Moeller* 17337 17338 * New file `apps/app_rand.c` with commonly needed functionality 17339 for handling the random seed file. 17340 17341 Use the random seed file in some applications that previously did not: 17342 ca, 17343 dsaparam -genkey (which also ignored its '-rand' option), 17344 s_client, 17345 s_server, 17346 x509 (when signing). 17347 Except on systems with /dev/urandom, it is crucial to have a random 17348 seed file at least for key creation, DSA signing, and for DH exchanges; 17349 for RSA signatures we could do without one. 17350 17351 gendh and gendsa (unlike genrsa) used to read only the first byte 17352 of each file listed in the '-rand' option. The function as previously 17353 found in genrsa is now in app_rand.c and is used by all programs 17354 that support '-rand'. 17355 17356 *Bodo Moeller* 17357 17358 * In RAND_write_file, use mode 0600 for creating files; 17359 don't just chmod when it may be too late. 17360 17361 *Bodo Moeller* 17362 17363 * Report an error from X509_STORE_load_locations 17364 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 17365 17366 *Bill Perry* 17367 17368 * New function ASN1_mbstring_copy() this copies a string in either 17369 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 17370 into an ASN1_STRING type. A mask of permissible types is passed 17371 and it chooses the "minimal" type to use or an error if not type 17372 is suitable. 17373 17374 *Steve Henson* 17375 17376 * Add function equivalents to the various macros in asn1.h. The old 17377 macros are retained with an `M_` prefix. Code inside the library can 17378 use the `M_` macros. External code (including the openssl utility) 17379 should *NOT* in order to be "shared library friendly". 17380 17381 *Steve Henson* 17382 17383 * Add various functions that can check a certificate's extensions 17384 to see if it usable for various purposes such as SSL client, 17385 server or S/MIME and CAs of these types. This is currently 17386 VERY EXPERIMENTAL but will ultimately be used for certificate chain 17387 verification. Also added a -purpose flag to x509 utility to 17388 print out all the purposes. 17389 17390 *Steve Henson* 17391 17392 * Add a CRYPTO_EX_DATA to X509 certificate structure and associated 17393 functions. 17394 17395 *Steve Henson* 17396 17397 * New `X509V3_{X509,CRL,REVOKED}_get_d2i()` functions. These will search 17398 for, obtain and decode and extension and obtain its critical flag. 17399 This allows all the necessary extension code to be handled in a 17400 single function call. 17401 17402 *Steve Henson* 17403 17404 * RC4 tune-up featuring 30-40% performance improvement on most RISC 17405 platforms. See crypto/rc4/rc4_enc.c for further details. 17406 17407 *Andy Polyakov* 17408 17409 * New -noout option to asn1parse. This causes no output to be produced 17410 its main use is when combined with -strparse and -out to extract data 17411 from a file (which may not be in ASN.1 format). 17412 17413 *Steve Henson* 17414 17415 * Fix for pkcs12 program. It was hashing an invalid certificate pointer 17416 when producing the local key id. 17417 17418 *Richard Levitte <levitte@stacken.kth.se>* 17419 17420 * New option -dhparam in s_server. This allows a DH parameter file to be 17421 stated explicitly. If it is not stated then it tries the first server 17422 certificate file. The previous behaviour hard coded the filename 17423 "server.pem". 17424 17425 *Steve Henson* 17426 17427 * Add -pubin and -pubout options to the rsa and dsa commands. These allow 17428 a public key to be input or output. For example: 17429 openssl rsa -in key.pem -pubout -out pubkey.pem 17430 Also added necessary DSA public key functions to handle this. 17431 17432 *Steve Henson* 17433 17434 * Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 17435 in the message. This was handled by allowing 17436 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 17437 17438 *Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>* 17439 17440 * Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 17441 to the end of the strings whereas this didn't. This would cause problems 17442 if strings read with d2i_ASN1_bytes() were later modified. 17443 17444 *Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>* 17445 17446 * Fix for base64 decode bug. When a base64 bio reads only one line of 17447 data and it contains EOF it will end up returning an error. This is 17448 caused by input 46 bytes long. The cause is due to the way base64 17449 BIOs find the start of base64 encoded data. They do this by trying a 17450 trial decode on each line until they find one that works. When they 17451 do a flag is set and it starts again knowing it can pass all the 17452 data directly through the decoder. Unfortunately it doesn't reset 17453 the context it uses. This means that if EOF is reached an attempt 17454 is made to pass two EOFs through the context and this causes the 17455 resulting error. This can also cause other problems as well. As is 17456 usual with these problems it takes *ages* to find and the fix is 17457 trivial: move one line. 17458 17459 *Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer)* 17460 17461 * Ugly workaround to get s_client and s_server working under Windows. The 17462 old code wouldn't work because it needed to select() on sockets and the 17463 tty (for keypresses and to see if data could be written). Win32 only 17464 supports select() on sockets so we select() with a 1s timeout on the 17465 sockets and then see if any characters are waiting to be read, if none 17466 are present then we retry, we also assume we can always write data to 17467 the tty. This isn't nice because the code then blocks until we've 17468 received a complete line of data and it is effectively polling the 17469 keyboard at 1s intervals: however it's quite a bit better than not 17470 working at all :-) A dedicated Windows application might handle this 17471 with an event loop for example. 17472 17473 *Steve Henson* 17474 17475 * Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 17476 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 17477 will be called when RSA_sign() and RSA_verify() are used. This is useful 17478 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 17479 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 17480 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 17481 This necessitated the support of an extra signature type NID_md5_sha1 17482 for SSL signatures and modifications to the SSL library to use it instead 17483 of calling RSA_public_decrypt() and RSA_private_encrypt(). 17484 17485 *Steve Henson* 17486 17487 * Add new -verify -CAfile and -CApath options to the crl program, these 17488 will lookup a CRL issuers certificate and verify the signature in a 17489 similar way to the verify program. Tidy up the crl program so it 17490 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 17491 less strict. It will now permit CRL extensions even if it is not 17492 a V2 CRL: this will allow it to tolerate some broken CRLs. 17493 17494 *Steve Henson* 17495 17496 * Initialize all non-automatic variables each time one of the openssl 17497 sub-programs is started (this is necessary as they may be started 17498 multiple times from the "OpenSSL>" prompt). 17499 17500 *Lennart Bang, Bodo Moeller* 17501 17502 * Preliminary compilation option RSA_NULL which disables RSA crypto without 17503 removing all other RSA functionality (this is what NO_RSA does). This 17504 is so (for example) those in the US can disable those operations covered 17505 by the RSA patent while allowing storage and parsing of RSA keys and RSA 17506 key generation. 17507 17508 *Steve Henson* 17509 17510 * Non-copying interface to BIO pairs. 17511 (still largely untested) 17512 17513 *Bodo Moeller* 17514 17515 * New function ASN1_tag2str() to convert an ASN1 tag to a descriptive 17516 ASCII string. This was handled independently in various places before. 17517 17518 *Steve Henson* 17519 17520 * New functions UTF8_getc() and UTF8_putc() that parse and generate 17521 UTF8 strings a character at a time. 17522 17523 *Steve Henson* 17524 17525 * Use client_version from client hello to select the protocol 17526 (s23_srvr.c) and for RSA client key exchange verification 17527 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 17528 17529 *Bodo Moeller* 17530 17531 * Add various utility functions to handle SPKACs, these were previously 17532 handled by poking round in the structure internals. Added new function 17533 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 17534 print, verify and generate SPKACs. Based on an original idea from 17535 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 17536 17537 *Steve Henson* 17538 17539 * RIPEMD160 is operational on all platforms and is back in 'make test'. 17540 17541 *Andy Polyakov* 17542 17543 * Allow the config file extension section to be overwritten on the 17544 command line. Based on an original idea from Massimiliano Pala 17545 <madwolf@comune.modena.it>. The new option is called -extensions 17546 and can be applied to ca, req and x509. Also -reqexts to override 17547 the request extensions in req and -crlexts to override the crl extensions 17548 in ca. 17549 17550 *Steve Henson* 17551 17552 * Add new feature to the SPKAC handling in ca. Now you can include 17553 the same field multiple times by preceding it by "XXXX." for example: 17554 1.OU="Unit name 1" 17555 2.OU="Unit name 2" 17556 this is the same syntax as used in the req config file. 17557 17558 *Steve Henson* 17559 17560 * Allow certificate extensions to be added to certificate requests. These 17561 are specified in a 'req_extensions' option of the req section of the 17562 config file. They can be printed out with the -text option to req but 17563 are otherwise ignored at present. 17564 17565 *Steve Henson* 17566 17567 * Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 17568 data read consists of only the final block it would not decrypted because 17569 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 17570 A misplaced 'break' also meant the decrypted final block might not be 17571 copied until the next read. 17572 17573 *Steve Henson* 17574 17575 * Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 17576 a few extra parameters to the DH structure: these will be useful if 17577 for example we want the value of 'q' or implement X9.42 DH. 17578 17579 *Steve Henson* 17580 17581 * Initial support for DSA_METHOD. This is based on the RSA_METHOD and 17582 provides hooks that allow the default DSA functions or functions on a 17583 "per key" basis to be replaced. This allows hardware acceleration and 17584 hardware key storage to be handled without major modification to the 17585 library. Also added low-level modexp hooks and CRYPTO_EX structure and 17586 associated functions. 17587 17588 *Steve Henson* 17589 17590 * Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 17591 as "read only": it can't be written to and the buffer it points to will 17592 not be freed. Reading from a read only BIO is much more efficient than 17593 a normal memory BIO. This was added because there are several times when 17594 an area of memory needs to be read from a BIO. The previous method was 17595 to create a memory BIO and write the data to it, this results in two 17596 copies of the data and an O(n^2) reading algorithm. There is a new 17597 function BIO_new_mem_buf() which creates a read only memory BIO from 17598 an area of memory. Also modified the PKCS#7 routines to use read only 17599 memory BIOs. 17600 17601 *Steve Henson* 17602 17603 * Bugfix: ssl23_get_client_hello did not work properly when called in 17604 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 17605 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 17606 but a retry condition occurred while trying to read the rest. 17607 17608 *Bodo Moeller* 17609 17610 * The PKCS7_ENC_CONTENT_new() function was setting the content type as 17611 NID_pkcs7_encrypted by default: this was wrong since this should almost 17612 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 17613 the encrypted data type: this is a more sensible place to put it and it 17614 allows the PKCS#12 code to be tidied up that duplicated this 17615 functionality. 17616 17617 *Steve Henson* 17618 17619 * Changed obj_dat.pl script so it takes its input and output files on 17620 the command line. This should avoid shell escape redirection problems 17621 under Win32. 17622 17623 *Steve Henson* 17624 17625 * Initial support for certificate extension requests, these are included 17626 in things like Xenroll certificate requests. Included functions to allow 17627 extensions to be obtained and added. 17628 17629 *Steve Henson* 17630 17631 * -crlf option to s_client and s_server for sending newlines as 17632 CRLF (as required by many protocols). 17633 17634 *Bodo Moeller* 17635 17636### Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 17637 17638 * Install libRSAglue.a when OpenSSL is built with RSAref. 17639 17640 *Ralf S. Engelschall* 17641 17642 * A few more `#ifndef NO_FP_API / #endif` pairs for consistency. 17643 17644 *Andrija Antonijevic <TheAntony2@bigfoot.com>* 17645 17646 * Fix -startdate and -enddate (which was missing) arguments to 'ca' 17647 program. 17648 17649 *Steve Henson* 17650 17651 * New function DSA_dup_DH, which duplicates DSA parameters/keys as 17652 DH parameters/keys (q is lost during that conversion, but the resulting 17653 DH parameters contain its length). 17654 17655 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 17656 much faster than DH_generate_parameters (which creates parameters 17657 where `p = 2*q + 1`), and also the smaller q makes DH computations 17658 much more efficient (160-bit exponentiation instead of 1024-bit 17659 exponentiation); so this provides a convenient way to support DHE 17660 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 17661 utter importance to use 17662 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 17663 or 17664 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 17665 when such DH parameters are used, because otherwise small subgroup 17666 attacks may become possible! 17667 17668 *Bodo Moeller* 17669 17670 * Avoid memory leak in i2d_DHparams. 17671 17672 *Bodo Moeller* 17673 17674 * Allow the -k option to be used more than once in the enc program: 17675 this allows the same encrypted message to be read by multiple recipients. 17676 17677 *Steve Henson* 17678 17679 * New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 17680 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 17681 it will always use the numerical form of the OID, even if it has a short 17682 or long name. 17683 17684 *Steve Henson* 17685 17686 * Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 17687 method only got called if p,q,dmp1,dmq1,iqmp components were present, 17688 otherwise bn_mod_exp was called. In the case of hardware keys for example 17689 no private key components need be present and it might store extra data 17690 in the RSA structure, which cannot be accessed from bn_mod_exp. 17691 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 17692 private key operations. 17693 17694 *Steve Henson* 17695 17696 * Added support for SPARC Linux. 17697 17698 *Andy Polyakov* 17699 17700 * pem_password_cb function type incompatibly changed from 17701 typedef int pem_password_cb(char *buf, int size, int rwflag); 17702 to 17703 ....(char *buf, int size, int rwflag, void *userdata); 17704 so that applications can pass data to their callbacks: 17705 The `PEM[_ASN1]_{read,write}...` functions and macros now take an 17706 additional void * argument, which is just handed through whenever 17707 the password callback is called. 17708 17709 *Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller* 17710 17711 New function SSL_CTX_set_default_passwd_cb_userdata. 17712 17713 Compatibility note: As many C implementations push function arguments 17714 onto the stack in reverse order, the new library version is likely to 17715 interoperate with programs that have been compiled with the old 17716 pem_password_cb definition (PEM_whatever takes some data that 17717 happens to be on the stack as its last argument, and the callback 17718 just ignores this garbage); but there is no guarantee whatsoever that 17719 this will work. 17720 17721 * The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 17722 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 17723 problems not only on Windows, but also on some Unix platforms. 17724 To avoid problematic command lines, these definitions are now in an 17725 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 17726 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 17727 17728 *Bodo Moeller* 17729 17730 * MIPS III/IV assembler module is reimplemented. 17731 17732 *Andy Polyakov* 17733 17734 * More DES library cleanups: remove references to srand/rand and 17735 delete an unused file. 17736 17737 *Ulf Möller* 17738 17739 * Add support for the free Netwide assembler (NASM) under Win32, 17740 since not many people have MASM (ml) and it can be hard to obtain. 17741 This is currently experimental but it seems to work OK and pass all 17742 the tests. Check out INSTALL.W32 for info. 17743 17744 *Steve Henson* 17745 17746 * Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 17747 without temporary keys kept an extra copy of the server key, 17748 and connections with temporary keys did not free everything in case 17749 of an error. 17750 17751 *Bodo Moeller* 17752 17753 * New function RSA_check_key and new openssl rsa option -check 17754 for verifying the consistency of RSA keys. 17755 17756 *Ulf Moeller, Bodo Moeller* 17757 17758 * Various changes to make Win32 compile work: 17759 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 17760 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 17761 comparison" warnings. 17762 3. Add `sk_<TYPE>_sort` to DEF file generator and do make update. 17763 17764 *Steve Henson* 17765 17766 * Add a debugging option to PKCS#5 v2 key generation function: when 17767 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 17768 derived keys are printed to stderr. 17769 17770 *Steve Henson* 17771 17772 * Copy the flags in ASN1_STRING_dup(). 17773 17774 *Roman E. Pavlov <pre@mo.msk.ru>* 17775 17776 * The x509 application mishandled signing requests containing DSA 17777 keys when the signing key was also DSA and the parameters didn't match. 17778 17779 It was supposed to omit the parameters when they matched the signing key: 17780 the verifying software was then supposed to automatically use the CA's 17781 parameters if they were absent from the end user certificate. 17782 17783 Omitting parameters is no longer recommended. The test was also 17784 the wrong way round! This was probably due to unusual behaviour in 17785 EVP_cmp_parameters() which returns 1 if the parameters match. 17786 This meant that parameters were omitted when they *didn't* match and 17787 the certificate was useless. Certificates signed with 'ca' didn't have 17788 this bug. 17789 17790 *Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>* 17791 17792 * Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 17793 The interface is as follows: 17794 Applications can use 17795 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 17796 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 17797 "off" is now the default. 17798 The library internally uses 17799 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 17800 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 17801 to disable memory-checking temporarily. 17802 17803 Some inconsistent states that previously were possible (and were 17804 even the default) are now avoided. 17805 17806 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 17807 with each memory chunk allocated; this is occasionally more helpful 17808 than just having a counter. 17809 17810 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 17811 17812 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 17813 extensions. 17814 17815 *Bodo Moeller* 17816 17817 * Introduce "mode" for SSL structures (with defaults in SSL_CTX), 17818 which largely parallels "options", but is for changing API behaviour, 17819 whereas "options" are about protocol behaviour. 17820 Initial "mode" flags are: 17821 17822 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 17823 a single record has been written. 17824 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 17825 retries use the same buffer location. 17826 (But all of the contents must be 17827 copied!) 17828 17829 *Bodo Moeller* 17830 17831 * Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 17832 worked. 17833 17834 * Fix problems with no-hmac etc. 17835 17836 *Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>* 17837 17838 * New functions RSA_get_default_method(), RSA_set_method() and 17839 RSA_get_method(). These allows replacement of RSA_METHODs without having 17840 to mess around with the internals of an RSA structure. 17841 17842 *Steve Henson* 17843 17844 * Fix memory leaks in DSA_do_sign and DSA_is_prime. 17845 Also really enable memory leak checks in openssl.c and in some 17846 test programs. 17847 17848 *Chad C. Mulligan, Bodo Moeller* 17849 17850 * Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 17851 up the length of negative integers. This has now been simplified to just 17852 store the length when it is first determined and use it later, rather 17853 than trying to keep track of where data is copied and updating it to 17854 point to the end. 17855 *Steve Henson, reported by Brien Wheeler <bwheeler@authentica-security.com>* 17856 17857 * Add a new function PKCS7_signatureVerify. This allows the verification 17858 of a PKCS#7 signature but with the signing certificate passed to the 17859 function itself. This contrasts with PKCS7_dataVerify which assumes the 17860 certificate is present in the PKCS#7 structure. This isn't always the 17861 case: certificates can be omitted from a PKCS#7 structure and be 17862 distributed by "out of band" means (such as a certificate database). 17863 17864 *Steve Henson* 17865 17866 * Complete the `PEM_*` macros with DECLARE_PEM versions to replace the 17867 function prototypes in pem.h, also change util/mkdef.pl to add the 17868 necessary function names. 17869 17870 *Steve Henson* 17871 17872 * mk1mf.pl (used by Windows builds) did not properly read the 17873 options set by Configure in the top level Makefile, and Configure 17874 was not even able to write more than one option correctly. 17875 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 17876 17877 *Bodo Moeller* 17878 17879 * New functions CONF_load_bio() and CONF_load_fp() to allow a config 17880 file to be loaded from a BIO or FILE pointer. The BIO version will 17881 for example allow memory BIOs to contain config info. 17882 17883 *Steve Henson* 17884 17885 * New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 17886 Whoever hopes to achieve shared-library compatibility across versions 17887 must use this, not the compile-time macro. 17888 (Exercise 0.9.4: Which is the minimum library version required by 17889 such programs?) 17890 Note: All this applies only to multi-threaded programs, others don't 17891 need locks. 17892 17893 *Bodo Moeller* 17894 17895 * Add missing case to s3_clnt.c state machine -- one of the new SSL tests 17896 through a BIO pair triggered the default case, i.e. 17897 SSLerr(...,SSL_R_UNKNOWN_STATE). 17898 17899 *Bodo Moeller* 17900 17901 * New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 17902 can use the SSL library even if none of the specific BIOs is 17903 appropriate. 17904 17905 *Bodo Moeller* 17906 17907 * Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 17908 for the encoded length. 17909 17910 *Jeon KyoungHo <khjeon@sds.samsung.co.kr>* 17911 17912 * Add initial documentation of the X509V3 functions. 17913 17914 *Steve Henson* 17915 17916 * Add a new pair of functions PEM_write_PKCS8PrivateKey() and 17917 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 17918 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 17919 secure PKCS#8 private key format with a high iteration count. 17920 17921 *Steve Henson* 17922 17923 * Fix determination of Perl interpreter: A perl or perl5 17924 *directory* in $PATH was also accepted as the interpreter. 17925 17926 *Ralf S. Engelschall* 17927 17928 * Fix demos/sign/sign.c: well there wasn't anything strictly speaking 17929 wrong with it but it was very old and did things like calling 17930 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 17931 unusual formatting. 17932 17933 *Steve Henson* 17934 17935 * Fix demos/selfsign.c: it used obsolete and deleted functions, changed 17936 to use the new extension code. 17937 17938 *Steve Henson* 17939 17940 * Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 17941 with macros. This should make it easier to change their form, add extra 17942 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 17943 constant. 17944 17945 *Steve Henson* 17946 17947 * Add to configuration table a new entry that can specify an alternative 17948 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 17949 according to Mark Crispin <MRC@Panda.COM>. 17950 17951 *Bodo Moeller* 17952 17953 * DES CBC did not update the IV. Weird. 17954 17955 *Ben Laurie* 17956lse 17957 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 17958 Changing the behaviour of the former might break existing programs -- 17959 where IV updating is needed, des_ncbc_encrypt can be used. 17960ndif 17961 17962 * When bntest is run from "make test" it drives bc to check its 17963 calculations, as well as internally checking them. If an internal check 17964 fails, it needs to cause bc to give a non-zero result or make test carries 17965 on without noticing the failure. Fixed. 17966 17967 *Ben Laurie* 17968 17969 * DES library cleanups. 17970 17971 *Ulf Möller* 17972 17973 * Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 17974 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 17975 ciphers. NOTE: although the key derivation function has been verified 17976 against some published test vectors it has not been extensively tested 17977 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 17978 of v2.0. 17979 17980 *Steve Henson* 17981 17982 * Instead of "mkdir -p", which is not fully portable, use new 17983 Perl script "util/mkdir-p.pl". 17984 17985 *Bodo Moeller* 17986 17987 * Rewrite the way password based encryption (PBE) is handled. It used to 17988 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 17989 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 17990 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 17991 the 'parameter' field of the AlgorithmIdentifier is passed to the 17992 underlying key generation function so it must do its own ASN1 parsing. 17993 This has also changed the EVP_PBE_CipherInit() function which now has a 17994 'parameter' argument instead of literal salt and iteration count values 17995 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 17996 17997 *Steve Henson* 17998 17999 * Support for PKCS#5 v1.5 compatible password based encryption algorithms 18000 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 18001 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 18002 KEY" because this clashed with PKCS#8 unencrypted string. Since this 18003 value was just used as a "magic string" and not used directly its 18004 value doesn't matter. 18005 18006 *Steve Henson* 18007 18008 * Introduce some semblance of const correctness to BN. Shame C doesn't 18009 support mutable. 18010 18011 *Ben Laurie* 18012 18013 * "linux-sparc64" configuration (ultrapenguin). 18014 18015 *Ray Miller <ray.miller@oucs.ox.ac.uk>* 18016 "linux-sparc" configuration. 18017 18018 *Christian Forster <fo@hawo.stw.uni-erlangen.de>* 18019 18020 * config now generates no-xxx options for missing ciphers. 18021 18022 *Ulf Möller* 18023 18024 * Support the EBCDIC character set (work in progress). 18025 File ebcdic.c not yet included because it has a different license. 18026 18027 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 18028 18029 * Support BS2000/OSD-POSIX. 18030 18031 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>* 18032 18033 * Make callbacks for key generation use `void *` instead of `char *`. 18034 18035 *Ben Laurie* 18036 18037 * Make S/MIME samples compile (not yet tested). 18038 18039 *Ben Laurie* 18040 18041 * Additional typesafe stacks. 18042 18043 *Ben Laurie* 18044 18045 * New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 18046 18047 *Bodo Moeller* 18048 18049### Changes between 0.9.3 and 0.9.3a [29 May 1999] 18050 18051 * New configuration variant "sco5-gcc". 18052 18053 * Updated some demos. 18054 18055 *Sean O Riordain, Wade Scholine* 18056 18057 * Add missing BIO_free at exit of pkcs12 application. 18058 18059 *Wu Zhigang* 18060 18061 * Fix memory leak in conf.c. 18062 18063 *Steve Henson* 18064 18065 * Updates for Win32 to assembler version of MD5. 18066 18067 *Steve Henson* 18068 18069 * Set #! path to perl in `apps/der_chop` to where we found it 18070 instead of using a fixed path. 18071 18072 *Bodo Moeller* 18073 18074 * SHA library changes for irix64-mips4-cc. 18075 18076 *Andy Polyakov* 18077 18078 * Improvements for VMS support. 18079 18080 *Richard Levitte* 18081 18082### Changes between 0.9.2b and 0.9.3 [24 May 1999] 18083 18084 * Bignum library bug fix. IRIX 6 passes "make test" now! 18085 This also avoids the problems with SC4.2 and unpatched SC5. 18086 18087 *Andy Polyakov <appro@fy.chalmers.se>* 18088 18089 * New functions sk_num, sk_value and sk_set to replace the previous macros. 18090 These are required because of the typesafe stack would otherwise break 18091 existing code. If old code used a structure member which used to be STACK 18092 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 18093 sk_num or sk_value it would produce an error because the num, data members 18094 are not present in STACK_OF. Now it just produces a warning. sk_set 18095 replaces the old method of assigning a value to sk_value 18096 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 18097 that does this will no longer work (and should use sk_set instead) but 18098 this could be regarded as a "questionable" behaviour anyway. 18099 18100 *Steve Henson* 18101 18102 * Fix most of the other PKCS#7 bugs. The "experimental" code can now 18103 correctly handle encrypted S/MIME data. 18104 18105 *Steve Henson* 18106 18107 * Change type of various DES function arguments from des_cblock 18108 (which means, in function argument declarations, pointer to char) 18109 to des_cblock * (meaning pointer to array with 8 char elements), 18110 which allows the compiler to do more typechecking; it was like 18111 that back in SSLeay, but with lots of ugly casts. 18112 18113 Introduce new type const_des_cblock. 18114 18115 *Bodo Moeller* 18116 18117 * Reorganise the PKCS#7 library and get rid of some of the more obvious 18118 problems: find RecipientInfo structure that matches recipient certificate 18119 and initialise the ASN1 structures properly based on passed cipher. 18120 18121 *Steve Henson* 18122 18123 * Belatedly make the BN tests actually check the results. 18124 18125 *Ben Laurie* 18126 18127 * Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 18128 to and from BNs: it was completely broken. New compilation option 18129 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 18130 key elements as negative integers. 18131 18132 *Steve Henson* 18133 18134 * Reorganize and speed up MD5. 18135 18136 *Andy Polyakov <appro@fy.chalmers.se>* 18137 18138 * VMS support. 18139 18140 *Richard Levitte <richard@levitte.org>* 18141 18142 * New option -out to asn1parse to allow the parsed structure to be 18143 output to a file. This is most useful when combined with the -strparse 18144 option to examine the output of things like OCTET STRINGS. 18145 18146 *Steve Henson* 18147 18148 * Make SSL library a little more fool-proof by not requiring any longer 18149 that `SSL_set_{accept,connect}_state` be called before 18150 `SSL_{accept,connect}` may be used (`SSL_set_..._state` is omitted 18151 in many applications because usually everything *appeared* to work as 18152 intended anyway -- now it really works as intended). 18153 18154 *Bodo Moeller* 18155 18156 * Move openssl.cnf out of lib/. 18157 18158 *Ulf Möller* 18159 18160 * Fix various things to let OpenSSL even pass "egcc -pipe -O2 -Wall 18161 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 18162 -Wmissing-declarations -Wnested-externs -Winline" with EGCS 1.1.2+ 18163 18164 *Ralf S. Engelschall* 18165 18166 * Various fixes to the EVP and PKCS#7 code. It may now be able to 18167 handle PKCS#7 enveloped data properly. 18168 18169 *Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve* 18170 18171 * Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 18172 copying pointers. The cert_st handling is changed by this in 18173 various ways (and thus what used to be known as ctx->default_cert 18174 is now called ctx->cert, since we don't resort to `s->ctx->[default_]cert` 18175 any longer when s->cert does not give us what we need). 18176 ssl_cert_instantiate becomes obsolete by this change. 18177 As soon as we've got the new code right (possibly it already is?), 18178 we have solved a couple of bugs of the earlier code where s->cert 18179 was used as if it could not have been shared with other SSL structures. 18180 18181 Note that using the SSL API in certain dirty ways now will result 18182 in different behaviour than observed with earlier library versions: 18183 Changing settings for an `SSL_CTX *ctx` after having done s = SSL_new(ctx) 18184 does not influence s as it used to. 18185 18186 In order to clean up things more thoroughly, inside SSL_SESSION 18187 we don't use CERT any longer, but a new structure SESS_CERT 18188 that holds per-session data (if available); currently, this is 18189 the peer's certificate chain and, for clients, the server's certificate 18190 and temporary key. CERT holds only those values that can have 18191 meaningful defaults in an SSL_CTX. 18192 18193 *Bodo Moeller* 18194 18195 * New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 18196 from the internal representation. Various PKCS#7 fixes: remove some 18197 evil casts and set the enc_dig_alg field properly based on the signing 18198 key type. 18199 18200 *Steve Henson* 18201 18202 * Allow PKCS#12 password to be set from the command line or the 18203 environment. Let 'ca' get its config file name from the environment 18204 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 18205 and 'x509'). 18206 18207 *Steve Henson* 18208 18209 * Allow certificate policies extension to use an IA5STRING for the 18210 organization field. This is contrary to the PKIX definition but 18211 VeriSign uses it and IE5 only recognises this form. Document 'x509' 18212 extension option. 18213 18214 *Steve Henson* 18215 18216 * Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 18217 without disallowing inline assembler and the like for non-pedantic builds. 18218 18219 *Ben Laurie* 18220 18221 * Support Borland C++ builder. 18222 18223 *Janez Jere <jj@void.si>, modified by Ulf Möller* 18224 18225 * Support Mingw32. 18226 18227 *Ulf Möller* 18228 18229 * SHA-1 cleanups and performance enhancements. 18230 18231 *Andy Polyakov <appro@fy.chalmers.se>* 18232 18233 * Sparc v8plus assembler for the bignum library. 18234 18235 *Andy Polyakov <appro@fy.chalmers.se>* 18236 18237 * Accept any -xxx and +xxx compiler options in Configure. 18238 18239 *Ulf Möller* 18240 18241 * Update HPUX configuration. 18242 18243 *Anonymous* 18244 18245 * Add missing `sk_<type>_unshift()` function to safestack.h 18246 18247 *Ralf S. Engelschall* 18248 18249 * New function SSL_CTX_use_certificate_chain_file that sets the 18250 "extra_cert"s in addition to the certificate. (This makes sense 18251 only for "PEM" format files, as chains as a whole are not 18252 DER-encoded.) 18253 18254 *Bodo Moeller* 18255 18256 * Support verify_depth from the SSL API. 18257 x509_vfy.c had what can be considered an off-by-one-error: 18258 Its depth (which was not part of the external interface) 18259 was actually counting the number of certificates in a chain; 18260 now it really counts the depth. 18261 18262 *Bodo Moeller* 18263 18264 * Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 18265 instead of X509err, which often resulted in confusing error 18266 messages since the error codes are not globally unique 18267 (e.g. an alleged error in ssl3_accept when a certificate 18268 didn't match the private key). 18269 18270 * New function SSL_CTX_set_session_id_context that allows to set a default 18271 value (so that you don't need SSL_set_session_id_context for each 18272 connection using the SSL_CTX). 18273 18274 *Bodo Moeller* 18275 18276 * OAEP decoding bug fix. 18277 18278 *Ulf Möller* 18279 18280 * Support INSTALL_PREFIX for package builders, as proposed by 18281 David Harris. 18282 18283 *Bodo Moeller* 18284 18285 * New Configure options "threads" and "no-threads". For systems 18286 where the proper compiler options are known (currently Solaris 18287 and Linux), "threads" is the default. 18288 18289 *Bodo Moeller* 18290 18291 * New script util/mklink.pl as a faster substitute for util/mklink.sh. 18292 18293 *Bodo Moeller* 18294 18295 * Install various scripts to $(OPENSSLDIR)/misc, not to 18296 $(INSTALLTOP)/bin -- they shouldn't clutter directories 18297 such as /usr/local/bin. 18298 18299 *Bodo Moeller* 18300 18301 * "make linux-shared" to build shared libraries. 18302 18303 *Niels Poppe <niels@netbox.org>* 18304 18305 * New Configure option `no-<cipher>` (rsa, idea, rc5, ...). 18306 18307 *Ulf Möller* 18308 18309 * Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 18310 extension adding in x509 utility. 18311 18312 *Steve Henson* 18313 18314 * Remove NOPROTO sections and error code comments. 18315 18316 *Ulf Möller* 18317 18318 * Partial rewrite of the DEF file generator to now parse the ANSI 18319 prototypes. 18320 18321 *Steve Henson* 18322 18323 * New Configure options --prefix=DIR and --openssldir=DIR. 18324 18325 *Ulf Möller* 18326 18327 * Complete rewrite of the error code script(s). It is all now handled 18328 by one script at the top level which handles error code gathering, 18329 header rewriting and C source file generation. It should be much better 18330 than the old method: it now uses a modified version of Ulf's parser to 18331 read the ANSI prototypes in all header files (thus the old K&R definitions 18332 aren't needed for error creation any more) and do a better job of 18333 translating function codes into names. The old 'ASN1 error code embedded 18334 in a comment' is no longer necessary and it doesn't use .err files which 18335 have now been deleted. Also the error code call doesn't have to appear all 18336 on one line (which resulted in some large lines...). 18337 18338 *Steve Henson* 18339 18340 * Change #include filenames from `<foo.h>` to `<openssl/foo.h>`. 18341 18342 *Bodo Moeller* 18343 18344 * Change behaviour of ssl2_read when facing length-0 packets: Don't return 18345 0 (which usually indicates a closed connection), but continue reading. 18346 18347 *Bodo Moeller* 18348 18349 * Fix some race conditions. 18350 18351 *Bodo Moeller* 18352 18353 * Add support for CRL distribution points extension. Add Certificate 18354 Policies and CRL distribution points documentation. 18355 18356 *Steve Henson* 18357 18358 * Move the autogenerated header file parts to crypto/opensslconf.h. 18359 18360 *Ulf Möller* 18361 18362 * Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 18363 8 of keying material. Merlin has also confirmed interop with this fix 18364 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 18365 18366 *Merlin Hughes <merlin@baltimore.ie>* 18367 18368 * Fix lots of warnings. 18369 18370 *Richard Levitte <levitte@stacken.kth.se>* 18371 18372 * In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 18373 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 18374 18375 *Richard Levitte <levitte@stacken.kth.se>* 18376 18377 * Fix problems with sizeof(long) == 8. 18378 18379 *Andy Polyakov <appro@fy.chalmers.se>* 18380 18381 * Change functions to ANSI C. 18382 18383 *Ulf Möller* 18384 18385 * Fix typos in error codes. 18386 18387 *Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller* 18388 18389 * Remove defunct assembler files from Configure. 18390 18391 *Ulf Möller* 18392 18393 * SPARC v8 assembler BIGNUM implementation. 18394 18395 *Andy Polyakov <appro@fy.chalmers.se>* 18396 18397 * Support for Certificate Policies extension: both print and set. 18398 Various additions to support the r2i method this uses. 18399 18400 *Steve Henson* 18401 18402 * A lot of constification, and fix a bug in X509_NAME_oneline() that could 18403 return a const string when you are expecting an allocated buffer. 18404 18405 *Ben Laurie* 18406 18407 * Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 18408 types DirectoryString and DisplayText. 18409 18410 *Steve Henson* 18411 18412 * Add code to allow r2i extensions to access the configuration database, 18413 add an LHASH database driver and add several ctx helper functions. 18414 18415 *Steve Henson* 18416 18417 * Fix an evil bug in bn_expand2() which caused various BN functions to 18418 fail when they extended the size of a BIGNUM. 18419 18420 *Steve Henson* 18421 18422 * Various utility functions to handle SXNet extension. Modify mkdef.pl to 18423 support typesafe stack. 18424 18425 *Steve Henson* 18426 18427 * Fix typo in SSL_[gs]et_options(). 18428 18429 *Nils Frostberg <nils@medcom.se>* 18430 18431 * Delete various functions and files that belonged to the (now obsolete) 18432 old X509V3 handling code. 18433 18434 *Steve Henson* 18435 18436 * New Configure option "rsaref". 18437 18438 *Ulf Möller* 18439 18440 * Don't auto-generate pem.h. 18441 18442 *Bodo Moeller* 18443 18444 * Introduce type-safe ASN.1 SETs. 18445 18446 *Ben Laurie* 18447 18448 * Convert various additional casted stacks to type-safe STACK_OF() variants. 18449 18450 *Ben Laurie, Ralf S. Engelschall, Steve Henson* 18451 18452 * Introduce type-safe STACKs. This will almost certainly break lots of code 18453 that links with OpenSSL (well at least cause lots of warnings), but fear 18454 not: the conversion is trivial, and it eliminates loads of evil casts. A 18455 few STACKed things have been converted already. Feel free to convert more. 18456 In the fullness of time, I'll do away with the STACK type altogether. 18457 18458 *Ben Laurie* 18459 18460 * Add `openssl ca -revoke <certfile>` facility which revokes a certificate 18461 specified in `<certfile>` by updating the entry in the index.txt file. 18462 This way one no longer has to edit the index.txt file manually for 18463 revoking a certificate. The -revoke option does the gory details now. 18464 18465 *Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall* 18466 18467 * Fix `openssl crl -noout -text` combination where `-noout` killed the 18468 `-text` option at all and this way the `-noout -text` combination was 18469 inconsistent in `openssl crl` with the friends in `openssl x509|rsa|dsa`. 18470 18471 *Ralf S. Engelschall* 18472 18473 * Make sure a corresponding plain text error message exists for the 18474 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 18475 verify callback function determined that a certificate was revoked. 18476 18477 *Ralf S. Engelschall* 18478 18479 * Bugfix: In test/testenc, don't test `openssl <cipher>` for 18480 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 18481 all available ciphers including rc5, which was forgotten until now. 18482 In order to let the testing shell script know which algorithms 18483 are available, a new (up to now undocumented) command 18484 `openssl list-cipher-commands` is used. 18485 18486 *Bodo Moeller* 18487 18488 * Bugfix: s_client occasionally would sleep in select() when 18489 it should have checked SSL_pending() first. 18490 18491 *Bodo Moeller* 18492 18493 * New functions DSA_do_sign and DSA_do_verify to provide access to 18494 the raw DSA values prior to ASN.1 encoding. 18495 18496 *Ulf Möller* 18497 18498 * Tweaks to Configure 18499 18500 *Niels Poppe <niels@netbox.org>* 18501 18502 * Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 18503 yet... 18504 18505 *Steve Henson* 18506 18507 * New variables $(RANLIB) and $(PERL) in the Makefiles. 18508 18509 *Ulf Möller* 18510 18511 * New config option to avoid instructions that are illegal on the 80386. 18512 The default code is faster, but requires at least a 486. 18513 18514 *Ulf Möller* 18515 18516 * Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 18517 SSL2_SERVER_VERSION (not used at all) macros, which are now the 18518 same as SSL2_VERSION anyway. 18519 18520 *Bodo Moeller* 18521 18522 * New "-showcerts" option for s_client. 18523 18524 *Bodo Moeller* 18525 18526 * Still more PKCS#12 integration. Add pkcs12 application to openssl 18527 application. Various cleanups and fixes. 18528 18529 *Steve Henson* 18530 18531 * More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 18532 modify error routines to work internally. Add error codes and PBE init 18533 to library startup routines. 18534 18535 *Steve Henson* 18536 18537 * Further PKCS#12 integration. Added password based encryption, PKCS#8 and 18538 packing functions to asn1 and evp. Changed function names and error 18539 codes along the way. 18540 18541 *Steve Henson* 18542 18543 * PKCS12 integration: and so it begins... First of several patches to 18544 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 18545 objects to objects.h 18546 18547 *Steve Henson* 18548 18549 * Add a new 'indent' option to some X509V3 extension code. Initial ASN1 18550 and display support for Thawte strong extranet extension. 18551 18552 *Steve Henson* 18553 18554 * Add LinuxPPC support. 18555 18556 *Jeff Dubrule <igor@pobox.org>* 18557 18558 * Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 18559 bn_div_words in alpha.s. 18560 18561 *Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie* 18562 18563 * Make sure the RSA OAEP test is skipped under -DRSAref because 18564 OAEP isn't supported when OpenSSL is built with RSAref. 18565 18566 *Ulf Moeller <ulf@fitug.de>* 18567 18568 * Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 18569 so they no longer are missing under -DNOPROTO. 18570 18571 *Soren S. Jorvang <soren@t.dk>* 18572 18573### Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 18574 18575 * Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 18576 doesn't work when the session is reused. Coming soon! 18577 18578 *Ben Laurie* 18579 18580 * Fix a security hole, that allows sessions to be reused in the wrong 18581 context thus bypassing client cert protection! All software that uses 18582 client certs and session caches in multiple contexts NEEDS PATCHING to 18583 allow session reuse! A fuller solution is in the works. 18584 18585 *Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)* 18586 18587 * Some more source tree cleanups (removed obsolete files 18588 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 18589 permission on "config" script to be executable) and a fix for the INSTALL 18590 document. 18591 18592 *Ulf Moeller <ulf@fitug.de>* 18593 18594 * Remove some legacy and erroneous uses of malloc, free instead of 18595 Malloc, Free. 18596 18597 *Lennart Bang <lob@netstream.se>, with minor changes by Steve* 18598 18599 * Make rsa_oaep_test return non-zero on error. 18600 18601 *Ulf Moeller <ulf@fitug.de>* 18602 18603 * Add support for native Solaris shared libraries. Configure 18604 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 18605 if someone would make that last step automatic. 18606 18607 *Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>* 18608 18609 * ctx_size was not built with the right compiler during "make links". Fixed. 18610 18611 *Ben Laurie* 18612 18613 * Change the meaning of 'ALL' in the cipher list. It now means "everything 18614 except NULL ciphers". This means the default cipher list will no longer 18615 enable NULL ciphers. They need to be specifically enabled e.g. with 18616 the string "DEFAULT:eNULL". 18617 18618 *Steve Henson* 18619 18620 * Fix to RSA private encryption routines: if p < q then it would 18621 occasionally produce an invalid result. This will only happen with 18622 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 18623 18624 *Steve Henson* 18625 18626 * Be less restrictive and allow also `perl util/perlpath.pl 18627 /path/to/bin/perl` in addition to `perl util/perlpath.pl /path/to/bin`, 18628 because this way one can also use an interpreter named `perl5` (which is 18629 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 18630 installed as `perl`). 18631 18632 *Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 18633 18634 * Let util/clean-depend.pl work also with older Perl 5.00x versions. 18635 18636 *Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 18637 18638 * Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 18639 advapi32.lib to Win32 build and change the pem test comparison 18640 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 18641 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 18642 and crypto/des/ede_cbcm_enc.c. 18643 18644 *Steve Henson* 18645 18646 * DES quad checksum was broken on big-endian architectures. Fixed. 18647 18648 *Ben Laurie* 18649 18650 * Comment out two functions in bio.h that aren't implemented. Fix up the 18651 Win32 test batch file so it (might) work again. The Win32 test batch file 18652 is horrible: I feel ill.... 18653 18654 *Steve Henson* 18655 18656 * Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 18657 in e_os.h. Audit of header files to check ANSI and non ANSI 18658 sections: 10 functions were absent from non ANSI section and not exported 18659 from Windows DLLs. Fixed up libeay.num for new functions. 18660 18661 *Steve Henson* 18662 18663 * Make `openssl version` output lines consistent. 18664 18665 *Ralf S. Engelschall* 18666 18667 * Fix Win32 symbol export lists for BIO functions: Added 18668 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 18669 to ms/libeay{16,32}.def. 18670 18671 *Ralf S. Engelschall* 18672 18673 * Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 18674 fine under Unix and passes some trivial tests I've now added. But the 18675 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 18676 added to make sure no one expects that this stuff really works in the 18677 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 18678 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 18679 openssl_bio.xs. 18680 18681 *Ralf S. Engelschall* 18682 18683 * Fix the generation of two part addresses in perl. 18684 18685 *Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie* 18686 18687 * Add config entry for Linux on MIPS. 18688 18689 *John Tobey <jtobey@channel1.com>* 18690 18691 * Make links whenever Configure is run, unless we are on Windoze. 18692 18693 *Ben Laurie* 18694 18695 * Permit extensions to be added to CRLs using crl_section in openssl.cnf. 18696 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 18697 in CRLs. 18698 18699 *Steve Henson* 18700 18701 * Add a useful kludge to allow package maintainers to specify compiler and 18702 other platforms details on the command line without having to patch the 18703 Configure script every time: One now can use 18704 `perl Configure <id>:<details>`, 18705 i.e. platform ids are allowed to have details appended 18706 to them (separated by colons). This is treated as there would be a static 18707 pre-configured entry in Configure's %table under key `<id>` with value 18708 `<details>` and `perl Configure <id>` is called. So, when you want to 18709 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 18710 assembler stuff you can use `perl Configure "FreeBSD-elf:pgcc:-O6:::"` 18711 now, which overrides the FreeBSD-elf entry on-the-fly. 18712 18713 *Ralf S. Engelschall* 18714 18715 * Disable new TLS1 ciphersuites by default: they aren't official yet. 18716 18717 *Ben Laurie* 18718 18719 * Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 18720 on the `perl Configure ...` command line. This way one can compile 18721 OpenSSL libraries with Position Independent Code (PIC) which is needed 18722 for linking it into DSOs. 18723 18724 *Ralf S. Engelschall* 18725 18726 * Remarkably, export ciphers were totally broken and no-one had noticed! 18727 Fixed. 18728 18729 *Ben Laurie* 18730 18731 * Cleaned up the LICENSE document: The official contact for any license 18732 questions now is the OpenSSL core team under openssl-core@openssl.org. 18733 And add a paragraph about the dual-license situation to make sure people 18734 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 18735 to the OpenSSL toolkit. 18736 18737 *Ralf S. Engelschall* 18738 18739 * General source tree makefile cleanups: Made `making xxx in yyy...` 18740 display consistent in the source tree and replaced `/bin/rm` by `rm`. 18741 Additionally cleaned up the `make links` target: Remove unnecessary 18742 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 18743 to speed processing and no longer clutter the display with confusing 18744 stuff. Instead only the actually done links are displayed. 18745 18746 *Ralf S. Engelschall* 18747 18748 * Permit null encryption ciphersuites, used for authentication only. It used 18749 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 18750 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 18751 encryption. 18752 18753 *Ben Laurie* 18754 18755 * Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 18756 signed attributes when verifying signatures (this would break them), 18757 the detached data encoding was wrong and public keys obtained using 18758 X509_get_pubkey() weren't freed. 18759 18760 *Steve Henson* 18761 18762 * Add text documentation for the BUFFER functions. Also added a work around 18763 to a Win95 console bug. This was triggered by the password read stuff: the 18764 last character typed gets carried over to the next fread(). If you were 18765 generating a new cert request using 'req' for example then the last 18766 character of the passphrase would be CR which would then enter the first 18767 field as blank. 18768 18769 *Steve Henson* 18770 18771 * Added the new 'Includes OpenSSL Cryptography Software' button as 18772 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 18773 button and can be used by applications based on OpenSSL to show the 18774 relationship to the OpenSSL project. 18775 18776 *Ralf S. Engelschall* 18777 18778 * Remove confusing variables in function signatures in files 18779 ssl/ssl_lib.c and ssl/ssl.h. 18780 18781 *Lennart Bong <lob@kulthea.stacken.kth.se>* 18782 18783 * Don't install bss_file.c under PREFIX/include/ 18784 18785 *Lennart Bong <lob@kulthea.stacken.kth.se>* 18786 18787 * Get the Win32 compile working again. Modify mkdef.pl so it can handle 18788 functions that return function pointers and has support for NT specific 18789 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 18790 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 18791 unsigned to signed types: this was killing the Win32 compile. 18792 18793 *Steve Henson* 18794 18795 * Add new certificate file to stack functions, 18796 SSL_add_dir_cert_subjects_to_stack() and 18797 SSL_add_file_cert_subjects_to_stack(). These largely supplant 18798 SSL_load_client_CA_file(), and can be used to add multiple certs easily 18799 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 18800 This means that Apache-SSL and similar packages don't have to mess around 18801 to add as many CAs as they want to the preferred list. 18802 18803 *Ben Laurie* 18804 18805 * Experiment with doxygen documentation. Currently only partially applied to 18806 ssl/ssl_lib.c. 18807 See <http://www.stack.nl/~dimitri/doxygen/index.html>, and run doxygen with 18808 openssl.doxy as the configuration file. 18809 18810 *Ben Laurie* 18811 18812 * Get rid of remaining C++-style comments which strict C compilers hate. 18813 18814 *Ralf S. Engelschall, pointed out by Carlos Amengual* 18815 18816 * Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 18817 compiled in by default: it has problems with large keys. 18818 18819 *Steve Henson* 18820 18821 * Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 18822 DH private keys and/or callback functions which directly correspond to 18823 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 18824 is needed for applications which have to configure certificates on a 18825 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 18826 (e.g. s_server). 18827 For the RSA certificate situation is makes no difference, but 18828 for the DSA certificate situation this fixes the "no shared cipher" 18829 problem where the OpenSSL cipher selection procedure failed because the 18830 temporary keys were not overtaken from the context and the API provided 18831 no way to reconfigure them. 18832 The new functions now let applications reconfigure the stuff and they 18833 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 18834 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 18835 non-public-API function ssl_cert_instantiate() is used as a helper 18836 function and also to reduce code redundancy inside ssl_rsa.c. 18837 18838 *Ralf S. Engelschall* 18839 18840 * Move s_server -dcert and -dkey options out of the undocumented feature 18841 area because they are useful for the DSA situation and should be 18842 recognized by the users. 18843 18844 *Ralf S. Engelschall* 18845 18846 * Fix the cipher decision scheme for export ciphers: the export bits are 18847 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 18848 SSL_EXP_MASK. So, the original variable has to be used instead of the 18849 already masked variable. 18850 18851 *Richard Levitte <levitte@stacken.kth.se>* 18852 18853 * Fix `port` variable from `int` to `unsigned int` in crypto/bio/b_sock.c 18854 18855 *Richard Levitte <levitte@stacken.kth.se>* 18856 18857 * Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 18858 from `int` to `unsigned int` because it is a length and initialized by 18859 EVP_DigestFinal() which expects an `unsigned int *`. 18860 18861 *Richard Levitte <levitte@stacken.kth.se>* 18862 18863 * Don't hard-code path to Perl interpreter on shebang line of Configure 18864 script. Instead use the usual Shell->Perl transition trick. 18865 18866 *Ralf S. Engelschall* 18867 18868 * Make `openssl x509 -noout -modulus`' functional also for DSA certificates 18869 (in addition to RSA certificates) to match the behaviour of `openssl dsa 18870 -noout -modulus` as it's already the case for `openssl rsa -noout 18871 -modulus`. For RSA the -modulus is the real "modulus" while for DSA 18872 currently the public key is printed (a decision which was already done by 18873 `openssl dsa -modulus` in the past) which serves a similar purpose. 18874 Additionally the NO_RSA no longer completely removes the whole -modulus 18875 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 18876 now, too. 18877 18878 *Ralf S. Engelschall* 18879 18880 * Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 18881 BIO. See the source (crypto/evp/bio_ok.c) for more info. 18882 18883 *Arne Ansper <arne@ats.cyber.ee>* 18884 18885 * Dump the old yucky req code that tried (and failed) to allow raw OIDs 18886 to be added. Now both 'req' and 'ca' can use new objects defined in the 18887 config file. 18888 18889 *Steve Henson* 18890 18891 * Add cool BIO that does syslog (or event log on NT). 18892 18893 *Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie* 18894 18895 * Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 18896 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 18897 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 18898 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 18899 18900 *Ben Laurie* 18901 18902 * Add preliminary config info for new extension code. 18903 18904 *Steve Henson* 18905 18906 * Make RSA_NO_PADDING really use no padding. 18907 18908 *Ulf Moeller <ulf@fitug.de>* 18909 18910 * Generate errors when private/public key check is done. 18911 18912 *Ben Laurie* 18913 18914 * Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 18915 for some CRL extensions and new objects added. 18916 18917 *Steve Henson* 18918 18919 * Really fix the ASN1 IMPLICIT bug this time... Partial support for private 18920 key usage extension and fuller support for authority key id. 18921 18922 *Steve Henson* 18923 18924 * Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 18925 padding method for RSA, which is recommended for new applications in PKCS 18926 #1 v2.0 (RFC 2437, October 1998). 18927 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 18928 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 18929 against Bleichbacher's attack on RSA. 18930 *Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 18931 Ben Laurie* 18932 18933 * Updates to the new SSL compression code 18934 18935 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 18936 18937 * Fix so that the version number in the master secret, when passed 18938 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 18939 (because the server will not accept higher), that the version number 18940 is 0x03,0x01, not 0x03,0x00 18941 18942 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 18943 18944 * Run extensive memory leak checks on SSL commands. Fixed *lots* of memory 18945 leaks in `ssl/` relating to new `X509_get_pubkey()` behaviour. Also fixes 18946 in `apps/` and an unrelated leak in `crypto/dsa/dsa_vrf.c`. 18947 18948 *Steve Henson* 18949 18950 * Support for RAW extensions where an arbitrary extension can be 18951 created by including its DER encoding. See `apps/openssl.cnf` for 18952 an example. 18953 18954 *Steve Henson* 18955 18956 * Make sure latest Perl versions don't interpret some generated C array 18957 code as Perl array code in the crypto/err/err_genc.pl script. 18958 18959 *Lars Weber <3weber@informatik.uni-hamburg.de>* 18960 18961 * Modify ms/do_ms.bat to not generate assembly language makefiles since 18962 not many people have the assembler. Various Win32 compilation fixes and 18963 update to the INSTALL.W32 file with (hopefully) more accurate Win32 18964 build instructions. 18965 18966 *Steve Henson* 18967 18968 * Modify configure script 'Configure' to automatically create crypto/date.h 18969 file under Win32 and also build pem.h from pem.org. New script 18970 util/mkfiles.pl to create the MINFO file on environments that can't do a 18971 'make files': perl util/mkfiles.pl >MINFO should work. 18972 18973 *Steve Henson* 18974 18975 * Major rework of DES function declarations, in the pursuit of correctness 18976 and purity. As a result, many evil casts evaporated, and some weirdness, 18977 too. You may find this causes warnings in your code. Zapping your evil 18978 casts will probably fix them. Mostly. 18979 18980 *Ben Laurie* 18981 18982 * Fix for a typo in asn1.h. Bug fix to object creation script 18983 obj_dat.pl. It considered a zero in an object definition to mean 18984 "end of object": none of the objects in objects.h have any zeros 18985 so it wasn't spotted. 18986 18987 *Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>* 18988 18989 * Add support for Triple DES Cipher Block Chaining with Output Feedback 18990 Masking (CBCM). In the absence of test vectors, the best I have been able 18991 to do is check that the decrypt undoes the encrypt, so far. Send me test 18992 vectors if you have them. 18993 18994 *Ben Laurie* 18995 18996 * Correct calculation of key length for export ciphers (too much space was 18997 allocated for null ciphers). This has not been tested! 18998 18999 *Ben Laurie* 19000 19001 * Modifications to the mkdef.pl for Win32 DEF file creation. The usage 19002 message is now correct (it understands "crypto" and "ssl" on its 19003 command line). There is also now an "update" option. This will update 19004 the util/ssleay.num and util/libeay.num files with any new functions. 19005 If you do a: 19006 perl util/mkdef.pl crypto ssl update 19007 it will update them. 19008 19009 *Steve Henson* 19010 19011 * Overhauled the Perl interface: 19012 - ported BN stuff to OpenSSL's different BN library 19013 - made the perl/ source tree CVS-aware 19014 - renamed the package from SSLeay to OpenSSL (the files still contain 19015 their history because I've copied them in the repository) 19016 - removed obsolete files (the test scripts will be replaced 19017 by better Test::Harness variants in the future) 19018 19019 *Ralf S. Engelschall* 19020 19021 * First cut for a very conservative source tree cleanup: 19022 1. merge various obsolete readme texts into doc/ssleay.txt 19023 where we collect the old documents and readme texts. 19024 2. remove the first part of files where I'm already sure that we no 19025 longer need them because of three reasons: either they are just temporary 19026 files which were left by Eric or they are preserved original files where 19027 I've verified that the diff is also available in the CVS via "cvs diff 19028 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 19029 the crypto/md/ stuff). 19030 19031 *Ralf S. Engelschall* 19032 19033 * More extension code. Incomplete support for subject and issuer alt 19034 name, issuer and authority key id. Change the i2v function parameters 19035 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 19036 what that's for :-) Fix to ASN1 macro which messed up 19037 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 19038 19039 *Steve Henson* 19040 19041 * Preliminary support for ENUMERATED type. This is largely copied from the 19042 INTEGER code. 19043 19044 *Steve Henson* 19045 19046 * Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 19047 19048 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19049 19050 * Make sure `make rehash` target really finds the `openssl` program. 19051 19052 *Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>* 19053 19054 * Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 19055 like to hear about it if this slows down other processors. 19056 19057 *Ben Laurie* 19058 19059 * Add CygWin32 platform information to Configure script. 19060 19061 *Alan Batie <batie@aahz.jf.intel.com>* 19062 19063 * Fixed ms/32all.bat script: `no_asm` -> `no-asm` 19064 19065 *Rainer W. Gerling <gerling@mpg-gv.mpg.de>* 19066 19067 * New program nseq to manipulate netscape certificate sequences 19068 19069 *Steve Henson* 19070 19071 * Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 19072 few typos. 19073 19074 *Steve Henson* 19075 19076 * Fixes to BN code. Previously the default was to define BN_RECURSION 19077 but the BN code had some problems that would cause failures when 19078 doing certificate verification and some other functions. 19079 19080 *Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)* 19081 19082 * Add ASN1 and PEM code to support netscape certificate sequences. 19083 19084 *Steve Henson* 19085 19086 * Add ASN1 and PEM code to support netscape certificate sequences. 19087 19088 *Steve Henson* 19089 19090 * Add several PKIX and private extended key usage OIDs. 19091 19092 *Steve Henson* 19093 19094 * Modify the 'ca' program to handle the new extension code. Modify 19095 openssl.cnf for new extension format, add comments. 19096 19097 *Steve Henson* 19098 19099 * More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 19100 and add a sample to openssl.cnf so req -x509 now adds appropriate 19101 CA extensions. 19102 19103 *Steve Henson* 19104 19105 * Continued X509 V3 changes. Add to other makefiles, integrate with the 19106 error code, add initial support to X509_print() and x509 application. 19107 19108 *Steve Henson* 19109 19110 * Takes a deep breath and start adding X509 V3 extension support code. Add 19111 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 19112 stuff is currently isolated and isn't even compiled yet. 19113 19114 *Steve Henson* 19115 19116 * Continuing patches for GeneralizedTime. Fix up certificate and CRL 19117 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 19118 Removed the versions check from X509 routines when loading extensions: 19119 this allows certain broken certificates that don't set the version 19120 properly to be processed. 19121 19122 *Steve Henson* 19123 19124 * Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 19125 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 19126 can still be regenerated with "make depend". 19127 19128 *Ben Laurie* 19129 19130 * Spelling mistake in C version of CAST-128. 19131 19132 *Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>* 19133 19134 * Changes to the error generation code. The perl script err-code.pl 19135 now reads in the old error codes and retains the old numbers, only 19136 adding new ones if necessary. It also only changes the .err files if new 19137 codes are added. The makefiles have been modified to only insert errors 19138 when needed (to avoid needlessly modifying header files). This is done 19139 by only inserting errors if the .err file is newer than the auto generated 19140 C file. To rebuild all the error codes from scratch (the old behaviour) 19141 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 19142 or delete all the .err files. 19143 19144 *Steve Henson* 19145 19146 * CAST-128 was incorrectly implemented for short keys. The C version has 19147 been fixed, but is untested. The assembler versions are also fixed, but 19148 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 19149 to regenerate it if needed. 19150 *Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 19151 Hagino <itojun@kame.net>* 19152 19153 * File was opened incorrectly in randfile.c. 19154 19155 *Ulf Möller <ulf@fitug.de>* 19156 19157 * Beginning of support for GeneralizedTime. d2i, i2d, check and print 19158 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 19159 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 19160 al: it's just almost always a UTCTime. Note this patch adds new error 19161 codes so do a "make errors" if there are problems. 19162 19163 *Steve Henson* 19164 19165 * Correct Linux 1 recognition in config. 19166 19167 *Ulf Möller <ulf@fitug.de>* 19168 19169 * Remove pointless MD5 hash when using DSA keys in ca. 19170 19171 *Anonymous <nobody@replay.com>* 19172 19173 * Generate an error if given an empty string as a cert directory. Also 19174 generate an error if handed NULL (previously returned 0 to indicate an 19175 error, but didn't set one). 19176 19177 *Ben Laurie, reported by Anonymous <nobody@replay.com>* 19178 19179 * Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 19180 19181 *Ben Laurie* 19182 19183 * Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 19184 parameters. This was causing a warning which killed off the Win32 compile. 19185 19186 *Steve Henson* 19187 19188 * Remove C++ style comments from crypto/bn/bn_local.h. 19189 19190 *Neil Costigan <neil.costigan@celocom.com>* 19191 19192 * The function OBJ_txt2nid was broken. It was supposed to return a nid 19193 based on a text string, looking up short and long names and finally 19194 "dot" format. The "dot" format stuff didn't work. Added new function 19195 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 19196 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 19197 OID is not part of the table. 19198 19199 *Steve Henson* 19200 19201 * Add prototypes to X509 lookup/verify methods, fixing a bug in 19202 X509_LOOKUP_by_alias(). 19203 19204 *Ben Laurie* 19205 19206 * Sort openssl functions by name. 19207 19208 *Ben Laurie* 19209 19210 * Get the `gendsa` command working and add it to the `list` command. Remove 19211 encryption from sample DSA keys (in case anyone is interested the password 19212 was "1234"). 19213 19214 *Steve Henson* 19215 19216 * Make *all* `*_free` functions accept a NULL pointer. 19217 19218 *Frans Heymans <fheymans@isaserver.be>* 19219 19220 * If a DH key is generated in s3_srvr.c, don't blow it by trying to use 19221 NULL pointers. 19222 19223 *Anonymous <nobody@replay.com>* 19224 19225 * s_server should send the CAfile as acceptable CAs, not its own cert. 19226 19227 *Bodo Moeller <3moeller@informatik.uni-hamburg.de>* 19228 19229 * Don't blow it for numeric `-newkey` arguments to `apps/req`. 19230 19231 *Bodo Moeller <3moeller@informatik.uni-hamburg.de>* 19232 19233 * Temp key "for export" tests were wrong in s3_srvr.c. 19234 19235 *Anonymous <nobody@replay.com>* 19236 19237 * Add prototype for temp key callback functions 19238 SSL_CTX_set_tmp_{rsa,dh}_callback(). 19239 19240 *Ben Laurie* 19241 19242 * Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 19243 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 19244 19245 *Steve Henson* 19246 19247 * X509_name_add_entry() freed the wrong thing after an error. 19248 19249 *Arne Ansper <arne@ats.cyber.ee>* 19250 19251 * rsa_eay.c would attempt to free a NULL context. 19252 19253 *Arne Ansper <arne@ats.cyber.ee>* 19254 19255 * BIO_s_socket() had a broken should_retry() on Windoze. 19256 19257 *Arne Ansper <arne@ats.cyber.ee>* 19258 19259 * BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 19260 19261 *Arne Ansper <arne@ats.cyber.ee>* 19262 19263 * Make sure the already existing X509_STORE->depth variable is initialized 19264 in X509_STORE_new(), but document the fact that this variable is still 19265 unused in the certificate verification process. 19266 19267 *Ralf S. Engelschall* 19268 19269 * Fix the various library and `apps/` files to free up pkeys obtained from 19270 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 19271 19272 *Steve Henson* 19273 19274 * Fix reference counting in X509_PUBKEY_get(). This makes 19275 demos/maurice/example2.c work, amongst others, probably. 19276 19277 *Steve Henson and Ben Laurie* 19278 19279 * First cut of a cleanup for `apps/`. First the `ssleay` program is now named 19280 `openssl` and second, the shortcut symlinks for the `openssl <command>` 19281 are no longer created. This way we have a single and consistent command 19282 line interface `openssl <command>`, similar to `cvs <command>`. 19283 19284 *Ralf S. Engelschall, Paul Sutton and Ben Laurie* 19285 19286 * ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 19287 BIT STRING wrapper always have zero unused bits. 19288 19289 *Steve Henson* 19290 19291 * Add CA.pl, perl version of CA.sh, add extended key usage OID. 19292 19293 *Steve Henson* 19294 19295 * Make the top-level INSTALL documentation easier to understand. 19296 19297 *Paul Sutton* 19298 19299 * Makefiles updated to exit if an error occurs in a sub-directory 19300 make (including if user presses ^C) [Paul Sutton] 19301 19302 * Make Montgomery context stuff explicit in RSA data structure. 19303 19304 *Ben Laurie* 19305 19306 * Fix build order of pem and err to allow for generated pem.h. 19307 19308 *Ben Laurie* 19309 19310 * Fix renumbering bug in X509_NAME_delete_entry(). 19311 19312 *Ben Laurie* 19313 19314 * Enhanced the err-ins.pl script so it makes the error library number 19315 global and can add a library name. This is needed for external ASN1 and 19316 other error libraries. 19317 19318 *Steve Henson* 19319 19320 * Fixed sk_insert which never worked properly. 19321 19322 *Steve Henson* 19323 19324 * Fix ASN1 macros so they can handle indefinite length constructed 19325 EXPLICIT tags. Some non standard certificates use these: they can now 19326 be read in. 19327 19328 *Steve Henson* 19329 19330 * Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 19331 into a single doc/ssleay.txt bundle. This way the information is still 19332 preserved but no longer messes up this directory. Now it's new room for 19333 the new set of documentation files. 19334 19335 *Ralf S. Engelschall* 19336 19337 * SETs were incorrectly DER encoded. This was a major pain, because they 19338 shared code with SEQUENCEs, which aren't coded the same. This means that 19339 almost everything to do with SETs or SEQUENCEs has either changed name or 19340 number of arguments. 19341 19342 *Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>* 19343 19344 * Fix test data to work with the above. 19345 19346 *Ben Laurie* 19347 19348 * Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 19349 was already fixed by Eric for 0.9.1 it seems. 19350 19351 *Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>* 19352 19353 * Autodetect FreeBSD3. 19354 19355 *Ben Laurie* 19356 19357 * Fix various bugs in Configure. This affects the following platforms: 19358 nextstep 19359 ncr-scde 19360 unixware-2.0 19361 unixware-2.0-pentium 19362 sco5-cc. 19363 19364 *Ben Laurie* 19365 19366 * Eliminate generated files from CVS. Reorder tests to regenerate files 19367 before they are needed. 19368 19369 *Ben Laurie* 19370 19371 * Generate Makefile.ssl from Makefile.org (to keep CVS happy). 19372 19373 *Ben Laurie* 19374 19375### Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 19376 19377 * Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 19378 changed SSLeay to OpenSSL in version strings. 19379 19380 *Ralf S. Engelschall* 19381 19382 * Some fixups to the top-level documents. 19383 19384 *Paul Sutton* 19385 19386 * Fixed the nasty bug where rsaref.h was not found under compile-time 19387 because the symlink to include/ was missing. 19388 19389 *Ralf S. Engelschall* 19390 19391 * Incorporated the popular no-RSA/DSA-only patches 19392 which allow to compile an RSA-free SSLeay. 19393 19394 *Andrew Cooke / Interrader Ldt., Ralf S. Engelschall* 19395 19396 * Fixed nasty rehash problem under `make -f Makefile.ssl links` 19397 when "ssleay" is still not found. 19398 19399 *Ralf S. Engelschall* 19400 19401 * Added more platforms to Configure: Cray T3E, HPUX 11, 19402 19403 *Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>* 19404 19405 * Updated the README file. 19406 19407 *Ralf S. Engelschall* 19408 19409 * Added various .cvsignore files in the CVS repository subdirs 19410 to make a "cvs update" really silent. 19411 19412 *Ralf S. Engelschall* 19413 19414 * Recompiled the error-definition header files and added 19415 missing symbols to the Win32 linker tables. 19416 19417 *Ralf S. Engelschall* 19418 19419 * Cleaned up the top-level documents; 19420 o new files: CHANGES and LICENSE 19421 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 19422 o merged COPYRIGHT into LICENSE 19423 o removed obsolete TODO file 19424 o renamed MICROSOFT to INSTALL.W32 19425 19426 *Ralf S. Engelschall* 19427 19428 * Removed dummy files from the 0.9.1b source tree: 19429 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 19430 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 19431 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 19432 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 19433 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 19434 19435 *Ralf S. Engelschall* 19436 19437 * Added various platform portability fixes. 19438 19439 *Mark J. Cox* 19440 19441 * The Genesis of the OpenSSL rpject: 19442 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 19443 Young and Tim J. Hudson created while they were working for C2Net until 19444 summer 1998. 19445 19446 *The OpenSSL Project* 19447 19448### Changes between 0.9.0b and 0.9.1b [not released] 19449 19450 * Updated a few CA certificates under certs/ 19451 19452 *Eric A. Young* 19453 19454 * Changed some BIGNUM api stuff. 19455 19456 *Eric A. Young* 19457 19458 * Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 19459 DGUX x86, Linux Alpha, etc. 19460 19461 *Eric A. Young* 19462 19463 * New COMP library [crypto/comp/] for SSL Record Layer Compression: 19464 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 19465 available). 19466 19467 *Eric A. Young* 19468 19469 * Add -strparse option to asn1pars program which parses nested 19470 binary structures 19471 19472 *Dr Stephen Henson <shenson@bigfoot.com>* 19473 19474 * Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 19475 19476 *Eric A. Young* 19477 19478 * DSA fix for "ca" program. 19479 19480 *Eric A. Young* 19481 19482 * Added "-genkey" option to "dsaparam" program. 19483 19484 *Eric A. Young* 19485 19486 * Added RIPE MD160 (rmd160) message digest. 19487 19488 *Eric A. Young* 19489 19490 * Added -a (all) option to "ssleay version" command. 19491 19492 *Eric A. Young* 19493 19494 * Added PLATFORM define which is the id given to Configure. 19495 19496 *Eric A. Young* 19497 19498 * Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 19499 19500 *Eric A. Young* 19501 19502 * Extended the ASN.1 parser routines. 19503 19504 *Eric A. Young* 19505 19506 * Extended BIO routines to support REUSEADDR, seek, tell, etc. 19507 19508 *Eric A. Young* 19509 19510 * Added a BN_CTX to the BN library. 19511 19512 *Eric A. Young* 19513 19514 * Fixed the weak key values in DES library 19515 19516 *Eric A. Young* 19517 19518 * Changed API in EVP library for cipher aliases. 19519 19520 *Eric A. Young* 19521 19522 * Added support for RC2/64bit cipher. 19523 19524 *Eric A. Young* 19525 19526 * Converted the lhash library to the crypto/mem.c functions. 19527 19528 *Eric A. Young* 19529 19530 * Added more recognized ASN.1 object ids. 19531 19532 *Eric A. Young* 19533 19534 * Added more RSA padding checks for SSL/TLS. 19535 19536 *Eric A. Young* 19537 19538 * Added BIO proxy/filter functionality. 19539 19540 *Eric A. Young* 19541 19542 * Added extra_certs to SSL_CTX which can be used 19543 send extra CA certificates to the client in the CA cert chain sending 19544 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 19545 19546 *Eric A. Young* 19547 19548 * Now Fortezza is denied in the authentication phase because 19549 this is key exchange mechanism is not supported by SSLeay at all. 19550 19551 *Eric A. Young* 19552 19553 * Additional PKCS1 checks. 19554 19555 *Eric A. Young* 19556 19557 * Support the string "TLSv1" for all TLS v1 ciphers. 19558 19559 *Eric A. Young* 19560 19561 * Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 19562 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 19563 19564 *Eric A. Young* 19565 19566 * Fixed a few memory leaks. 19567 19568 *Eric A. Young* 19569 19570 * Fixed various code and comment typos. 19571 19572 *Eric A. Young* 19573 19574 * A minor bug in ssl/s3_clnt.c where there would always be 4 0 19575 bytes sent in the client random. 19576 19577 *Edward Bishop <ebishop@spyglass.com>* 19578 19579<!-- Links --> 19580 19581[CVE-2023-0401]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0401 19582[CVE-2023-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0286 19583[CVE-2023-0217]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0217 19584[CVE-2023-0216]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0216 19585[CVE-2023-0215]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-0215 19586[CVE-2022-4450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4450 19587[CVE-2022-4304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4304 19588[CVE-2022-4203]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-4203 19589[CVE-2022-3996]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-3996 19590[CVE-2022-2274]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2274 19591[CVE-2022-2097]: https://www.openssl.org/news/vulnerabilities.html#CVE-2022-2274 19592[CVE-2020-1971]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1971 19593[CVE-2020-1967]: https://www.openssl.org/news/vulnerabilities.html#CVE-2020-1967 19594[CVE-2019-1563]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1563 19595[CVE-2019-1559]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1559 19596[CVE-2019-1552]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1552 19597[CVE-2019-1551]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1551 19598[CVE-2019-1549]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1549 19599[CVE-2019-1547]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1547 19600[CVE-2019-1543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2019-1543 19601[CVE-2018-5407]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-5407 19602[CVE-2018-0739]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0739 19603[CVE-2018-0737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0737 19604[CVE-2018-0735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0735 19605[CVE-2018-0734]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0734 19606[CVE-2018-0733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0733 19607[CVE-2018-0732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2018-0732 19608[CVE-2017-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3738 19609[CVE-2017-3737]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3737 19610[CVE-2017-3736]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3736 19611[CVE-2017-3735]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3735 19612[CVE-2017-3733]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3733 19613[CVE-2017-3732]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3732 19614[CVE-2017-3731]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3731 19615[CVE-2017-3730]: https://www.openssl.org/news/vulnerabilities.html#CVE-2017-3730 19616[CVE-2016-7055]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7055 19617[CVE-2016-7054]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7054 19618[CVE-2016-7053]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7053 19619[CVE-2016-7052]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-7052 19620[CVE-2016-6309]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6309 19621[CVE-2016-6308]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6308 19622[CVE-2016-6307]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6307 19623[CVE-2016-6306]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6306 19624[CVE-2016-6305]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6305 19625[CVE-2016-6304]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6304 19626[CVE-2016-6303]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6303 19627[CVE-2016-6302]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-6302 19628[CVE-2016-2183]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2183 19629[CVE-2016-2182]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2182 19630[CVE-2016-2181]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2181 19631[CVE-2016-2180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2180 19632[CVE-2016-2179]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2179 19633[CVE-2016-2178]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2178 19634[CVE-2016-2177]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2177 19635[CVE-2016-2176]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2176 19636[CVE-2016-2109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2109 19637[CVE-2016-2107]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2107 19638[CVE-2016-2106]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2106 19639[CVE-2016-2105]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-2105 19640[CVE-2016-0800]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0800 19641[CVE-2016-0799]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0799 19642[CVE-2016-0798]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0798 19643[CVE-2016-0797]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0797 19644[CVE-2016-0705]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0705 19645[CVE-2016-0702]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0702 19646[CVE-2016-0701]: https://www.openssl.org/news/vulnerabilities.html#CVE-2016-0701 19647[CVE-2015-3197]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3197 19648[CVE-2015-3196]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3196 19649[CVE-2015-3195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3195 19650[CVE-2015-3194]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3194 19651[CVE-2015-3193]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-3193 19652[CVE-2015-1793]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1793 19653[CVE-2015-1792]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1792 19654[CVE-2015-1791]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1791 19655[CVE-2015-1790]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1790 19656[CVE-2015-1789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1789 19657[CVE-2015-1788]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1788 19658[CVE-2015-1787]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-1787 19659[CVE-2015-0293]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0293 19660[CVE-2015-0291]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0291 19661[CVE-2015-0290]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0290 19662[CVE-2015-0289]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0289 19663[CVE-2015-0288]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0288 19664[CVE-2015-0287]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0287 19665[CVE-2015-0286]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0286 19666[CVE-2015-0285]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0285 19667[CVE-2015-0209]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0209 19668[CVE-2015-0208]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0208 19669[CVE-2015-0207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0207 19670[CVE-2015-0206]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0206 19671[CVE-2015-0205]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0205 19672[CVE-2015-0204]: https://www.openssl.org/news/vulnerabilities.html#CVE-2015-0204 19673[CVE-2014-8275]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-8275 19674[CVE-2014-5139]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-5139 19675[CVE-2014-3572]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3572 19676[CVE-2014-3571]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3571 19677[CVE-2014-3570]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3570 19678[CVE-2014-3569]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3569 19679[CVE-2014-3568]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3568 19680[CVE-2014-3567]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3567 19681[CVE-2014-3566]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3566 19682[CVE-2014-3513]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3513 19683[CVE-2014-3512]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3512 19684[CVE-2014-3511]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3511 19685[CVE-2014-3510]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3510 19686[CVE-2014-3509]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3509 19687[CVE-2014-3508]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3508 19688[CVE-2014-3507]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3507 19689[CVE-2014-3506]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3506 19690[CVE-2014-3505]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3505 19691[CVE-2014-3470]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-3470 19692[CVE-2014-0224]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0224 19693[CVE-2014-0221]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0221 19694[CVE-2014-0195]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0195 19695[CVE-2014-0160]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0160 19696[CVE-2014-0076]: https://www.openssl.org/news/vulnerabilities.html#CVE-2014-0076 19697[CVE-2013-6450]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-6450 19698[CVE-2013-4353]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-4353 19699[CVE-2013-0169]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0169 19700[CVE-2013-0166]: https://www.openssl.org/news/vulnerabilities.html#CVE-2013-0166 19701[CVE-2012-2686]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2686 19702[CVE-2012-2333]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2333 19703[CVE-2012-2110]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-2110 19704[CVE-2012-0884]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0884 19705[CVE-2012-0050]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0050 19706[CVE-2012-0027]: https://www.openssl.org/news/vulnerabilities.html#CVE-2012-0027 19707[CVE-2011-4619]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4619 19708[CVE-2011-4577]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4577 19709[CVE-2011-4576]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4576 19710[CVE-2011-4109]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4109 19711[CVE-2011-4108]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-4108 19712[CVE-2011-3210]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3210 19713[CVE-2011-3207]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-3207 19714[CVE-2011-0014]: https://www.openssl.org/news/vulnerabilities.html#CVE-2011-0014 19715[CVE-2010-4252]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4252 19716[CVE-2010-4180]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-4180 19717[CVE-2010-3864]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-3864 19718[CVE-2010-1633]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-1633 19719[CVE-2010-0740]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0740 19720[CVE-2010-0433]: https://www.openssl.org/news/vulnerabilities.html#CVE-2010-0433 19721[CVE-2009-4355]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-4355 19722[CVE-2009-3555]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3555 19723[CVE-2009-3245]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-3245 19724[CVE-2009-1386]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1386 19725[CVE-2009-1379]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1379 19726[CVE-2009-1378]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1378 19727[CVE-2009-1377]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-1377 19728[CVE-2009-0789]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0789 19729[CVE-2009-0591]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0591 19730[CVE-2009-0590]: https://www.openssl.org/news/vulnerabilities.html#CVE-2009-0590 19731[CVE-2008-5077]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-5077 19732[CVE-2008-1678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-1678 19733[CVE-2008-1672]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-1672 19734[CVE-2008-0891]: https://www.openssl.org/news/vulnerabilities.html#CVE-2008-0891 19735[CVE-2007-5135]: https://www.openssl.org/news/vulnerabilities.html#CVE-2007-5135 19736[CVE-2007-4995]: https://www.openssl.org/news/vulnerabilities.html#CVE-2007-4995 19737[CVE-2006-4343]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4343 19738[CVE-2006-4339]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-4339 19739[CVE-2006-3738]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-3738 19740[CVE-2006-2940]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2940 19741[CVE-2006-2937]: https://www.openssl.org/news/vulnerabilities.html#CVE-2006-2937 19742[CVE-2005-2969]: https://www.openssl.org/news/vulnerabilities.html#CVE-2005-2969 19743[CVE-2004-0112]: https://www.openssl.org/news/vulnerabilities.html#CVE-2004-0112 19744[CVE-2004-0079]: https://www.openssl.org/news/vulnerabilities.html#CVE-2004-0079 19745[CVE-2003-0851]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0851 19746[CVE-2003-0545]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0545 19747[CVE-2003-0544]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0544 19748[CVE-2003-0543]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0543 19749[CVE-2003-0078]: https://www.openssl.org/news/vulnerabilities.html#CVE-2003-0078 19750[CVE-2002-0659]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0659 19751[CVE-2002-0657]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0657 19752[CVE-2002-0656]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0656 19753[CVE-2002-0655]: https://www.openssl.org/news/vulnerabilities.html#CVE-2002-0655 19754