1 /* $OpenBSD: cms.c,v 1.1 2014/08/26 17:47:24 jsing Exp $ */ 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 3 * project. 4 */ 5 /* ==================================================================== 6 * Copyright (c) 2008 The OpenSSL Project. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 20 * 3. All advertising materials mentioning features or use of this 21 * software must display the following acknowledgment: 22 * "This product includes software developed by the OpenSSL Project 23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24 * 25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26 * endorse or promote products derived from this software without 27 * prior written permission. For written permission, please contact 28 * licensing@OpenSSL.org. 29 * 30 * 5. Products derived from this software may not be called "OpenSSL" 31 * nor may "OpenSSL" appear in their names without prior written 32 * permission of the OpenSSL Project. 33 * 34 * 6. Redistributions of any form whatsoever must retain the following 35 * acknowledgment: 36 * "This product includes software developed by the OpenSSL Project 37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38 * 39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50 * OF THE POSSIBILITY OF SUCH DAMAGE. 51 * ==================================================================== 52 */ 53 54 /* CMS utility function */ 55 56 #include <stdio.h> 57 #include <string.h> 58 59 #include "apps.h" 60 61 #ifndef OPENSSL_NO_CMS 62 63 #include <openssl/cms.h> 64 #include <openssl/crypto.h> 65 #include <openssl/err.h> 66 #include <openssl/pem.h> 67 #include <openssl/x509_vfy.h> 68 #include <openssl/x509v3.h> 69 70 static int save_certs(char *signerfile, STACK_OF(X509) * signers); 71 static int cms_cb(int ok, X509_STORE_CTX * ctx); 72 static void receipt_request_print(BIO * out, CMS_ContentInfo * cms); 73 static CMS_ReceiptRequest * make_receipt_request( 74 STACK_OF(OPENSSL_STRING) * rr_to, int rr_allorfirst, 75 STACK_OF(OPENSSL_STRING) * rr_from); 76 77 #define SMIME_OP 0x10 78 #define SMIME_IP 0x20 79 #define SMIME_SIGNERS 0x40 80 #define SMIME_ENCRYPT (1 | SMIME_OP) 81 #define SMIME_DECRYPT (2 | SMIME_IP) 82 #define SMIME_SIGN (3 | SMIME_OP | SMIME_SIGNERS) 83 #define SMIME_VERIFY (4 | SMIME_IP) 84 #define SMIME_CMSOUT (5 | SMIME_IP | SMIME_OP) 85 #define SMIME_RESIGN (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS) 86 #define SMIME_DATAOUT (7 | SMIME_IP) 87 #define SMIME_DATA_CREATE (8 | SMIME_OP) 88 #define SMIME_DIGEST_VERIFY (9 | SMIME_IP) 89 #define SMIME_DIGEST_CREATE (10 | SMIME_OP) 90 #define SMIME_UNCOMPRESS (11 | SMIME_IP) 91 #define SMIME_COMPRESS (12 | SMIME_OP) 92 #define SMIME_ENCRYPTED_DECRYPT (13 | SMIME_IP) 93 #define SMIME_ENCRYPTED_ENCRYPT (14 | SMIME_OP) 94 #define SMIME_SIGN_RECEIPT (15 | SMIME_IP | SMIME_OP) 95 #define SMIME_VERIFY_RECEIPT (16 | SMIME_IP) 96 97 int verify_err = 0; 98 99 int cms_main(int, char **); 100 101 int 102 cms_main(int argc, char **argv) 103 { 104 ENGINE *e = NULL; 105 int operation = 0; 106 int ret = 0; 107 char **args; 108 const char *inmode = "r", *outmode = "w"; 109 char *infile = NULL, *outfile = NULL, *rctfile = NULL; 110 char *signerfile = NULL, *recipfile = NULL; 111 STACK_OF(OPENSSL_STRING) * sksigners = NULL, *skkeys = NULL; 112 char *certfile = NULL, *keyfile = NULL, *contfile = NULL; 113 char *certsoutfile = NULL; 114 const EVP_CIPHER *cipher = NULL; 115 CMS_ContentInfo *cms = NULL, *rcms = NULL; 116 X509_STORE *store = NULL; 117 X509 *cert = NULL, *recip = NULL, *signer = NULL; 118 EVP_PKEY *key = NULL; 119 STACK_OF(X509) * encerts = NULL, *other = NULL; 120 BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL; 121 int badarg = 0; 122 int flags = CMS_DETACHED, noout = 0, print = 0; 123 int verify_retcode = 0; 124 int rr_print = 0, rr_allorfirst = -1; 125 STACK_OF(OPENSSL_STRING) * rr_to = NULL, *rr_from = NULL; 126 CMS_ReceiptRequest *rr = NULL; 127 char *to = NULL, *from = NULL, *subject = NULL; 128 char *CAfile = NULL, *CApath = NULL; 129 char *passargin = NULL, *passin = NULL; 130 const EVP_MD *sign_md = NULL; 131 int informat = FORMAT_SMIME, outformat = FORMAT_SMIME; 132 int rctformat = FORMAT_SMIME, keyform = FORMAT_PEM; 133 #ifndef OPENSSL_NO_ENGINE 134 char *engine = NULL; 135 #endif 136 unsigned char *secret_key = NULL, *secret_keyid = NULL; 137 unsigned char *pwri_pass = NULL, *pwri_tmp = NULL; 138 size_t secret_keylen = 0, secret_keyidlen = 0; 139 140 ASN1_OBJECT *econtent_type = NULL; 141 142 X509_VERIFY_PARAM *vpm = NULL; 143 144 args = argv + 1; 145 ret = 1; 146 147 while (!badarg && *args && *args[0] == '-') { 148 if (!strcmp(*args, "-encrypt")) 149 operation = SMIME_ENCRYPT; 150 else if (!strcmp(*args, "-decrypt")) 151 operation = SMIME_DECRYPT; 152 else if (!strcmp(*args, "-sign")) 153 operation = SMIME_SIGN; 154 else if (!strcmp(*args, "-sign_receipt")) 155 operation = SMIME_SIGN_RECEIPT; 156 else if (!strcmp(*args, "-resign")) 157 operation = SMIME_RESIGN; 158 else if (!strcmp(*args, "-verify")) 159 operation = SMIME_VERIFY; 160 else if (!strcmp(*args, "-verify_retcode")) 161 verify_retcode = 1; 162 else if (!strcmp(*args, "-verify_receipt")) { 163 operation = SMIME_VERIFY_RECEIPT; 164 if (!args[1]) 165 goto argerr; 166 args++; 167 rctfile = *args; 168 } else if (!strcmp(*args, "-cmsout")) 169 operation = SMIME_CMSOUT; 170 else if (!strcmp(*args, "-data_out")) 171 operation = SMIME_DATAOUT; 172 else if (!strcmp(*args, "-data_create")) 173 operation = SMIME_DATA_CREATE; 174 else if (!strcmp(*args, "-digest_verify")) 175 operation = SMIME_DIGEST_VERIFY; 176 else if (!strcmp(*args, "-digest_create")) 177 operation = SMIME_DIGEST_CREATE; 178 else if (!strcmp(*args, "-compress")) 179 operation = SMIME_COMPRESS; 180 else if (!strcmp(*args, "-uncompress")) 181 operation = SMIME_UNCOMPRESS; 182 else if (!strcmp(*args, "-EncryptedData_decrypt")) 183 operation = SMIME_ENCRYPTED_DECRYPT; 184 else if (!strcmp(*args, "-EncryptedData_encrypt")) 185 operation = SMIME_ENCRYPTED_ENCRYPT; 186 #ifndef OPENSSL_NO_DES 187 else if (!strcmp(*args, "-des3")) 188 cipher = EVP_des_ede3_cbc(); 189 else if (!strcmp(*args, "-des")) 190 cipher = EVP_des_cbc(); 191 #endif 192 #ifndef OPENSSL_NO_RC2 193 else if (!strcmp(*args, "-rc2-40")) 194 cipher = EVP_rc2_40_cbc(); 195 else if (!strcmp(*args, "-rc2-128")) 196 cipher = EVP_rc2_cbc(); 197 else if (!strcmp(*args, "-rc2-64")) 198 cipher = EVP_rc2_64_cbc(); 199 #endif 200 #ifndef OPENSSL_NO_AES 201 else if (!strcmp(*args, "-aes128")) 202 cipher = EVP_aes_128_cbc(); 203 else if (!strcmp(*args, "-aes192")) 204 cipher = EVP_aes_192_cbc(); 205 else if (!strcmp(*args, "-aes256")) 206 cipher = EVP_aes_256_cbc(); 207 #endif 208 #ifndef OPENSSL_NO_CAMELLIA 209 else if (!strcmp(*args, "-camellia128")) 210 cipher = EVP_camellia_128_cbc(); 211 else if (!strcmp(*args, "-camellia192")) 212 cipher = EVP_camellia_192_cbc(); 213 else if (!strcmp(*args, "-camellia256")) 214 cipher = EVP_camellia_256_cbc(); 215 #endif 216 else if (!strcmp(*args, "-debug_decrypt")) 217 flags |= CMS_DEBUG_DECRYPT; 218 else if (!strcmp(*args, "-text")) 219 flags |= CMS_TEXT; 220 else if (!strcmp(*args, "-nointern")) 221 flags |= CMS_NOINTERN; 222 else if (!strcmp(*args, "-noverify") || 223 !strcmp(*args, "-no_signer_cert_verify")) 224 flags |= CMS_NO_SIGNER_CERT_VERIFY; 225 else if (!strcmp(*args, "-nocerts")) 226 flags |= CMS_NOCERTS; 227 else if (!strcmp(*args, "-noattr")) 228 flags |= CMS_NOATTR; 229 else if (!strcmp(*args, "-nodetach")) 230 flags &= ~CMS_DETACHED; 231 else if (!strcmp(*args, "-nosmimecap")) 232 flags |= CMS_NOSMIMECAP; 233 else if (!strcmp(*args, "-binary")) 234 flags |= CMS_BINARY; 235 else if (!strcmp(*args, "-keyid")) 236 flags |= CMS_USE_KEYID; 237 else if (!strcmp(*args, "-nosigs")) 238 flags |= CMS_NOSIGS; 239 else if (!strcmp(*args, "-no_content_verify")) 240 flags |= CMS_NO_CONTENT_VERIFY; 241 else if (!strcmp(*args, "-no_attr_verify")) 242 flags |= CMS_NO_ATTR_VERIFY; 243 else if (!strcmp(*args, "-stream")) 244 flags |= CMS_STREAM; 245 else if (!strcmp(*args, "-indef")) 246 flags |= CMS_STREAM; 247 else if (!strcmp(*args, "-noindef")) 248 flags &= ~CMS_STREAM; 249 else if (!strcmp(*args, "-nooldmime")) 250 flags |= CMS_NOOLDMIMETYPE; 251 else if (!strcmp(*args, "-crlfeol")) 252 flags |= CMS_CRLFEOL; 253 else if (!strcmp(*args, "-noout")) 254 noout = 1; 255 else if (!strcmp(*args, "-receipt_request_print")) 256 rr_print = 1; 257 else if (!strcmp(*args, "-receipt_request_all")) 258 rr_allorfirst = 0; 259 else if (!strcmp(*args, "-receipt_request_first")) 260 rr_allorfirst = 1; 261 else if (!strcmp(*args, "-receipt_request_from")) { 262 if (!args[1]) 263 goto argerr; 264 args++; 265 if (!rr_from) 266 rr_from = sk_OPENSSL_STRING_new_null(); 267 sk_OPENSSL_STRING_push(rr_from, *args); 268 } else if (!strcmp(*args, "-receipt_request_to")) { 269 if (!args[1]) 270 goto argerr; 271 args++; 272 if (!rr_to) 273 rr_to = sk_OPENSSL_STRING_new_null(); 274 sk_OPENSSL_STRING_push(rr_to, *args); 275 } else if (!strcmp(*args, "-print")) { 276 noout = 1; 277 print = 1; 278 } else if (!strcmp(*args, "-secretkey")) { 279 long ltmp; 280 if (!args[1]) 281 goto argerr; 282 args++; 283 secret_key = string_to_hex(*args, <mp); 284 if (!secret_key) { 285 BIO_printf(bio_err, "Invalid key %s\n", *args); 286 goto argerr; 287 } 288 secret_keylen = (size_t) ltmp; 289 } else if (!strcmp(*args, "-secretkeyid")) { 290 long ltmp; 291 if (!args[1]) 292 goto argerr; 293 args++; 294 secret_keyid = string_to_hex(*args, <mp); 295 if (!secret_keyid) { 296 BIO_printf(bio_err, "Invalid id %s\n", *args); 297 goto argerr; 298 } 299 secret_keyidlen = (size_t) ltmp; 300 } else if (!strcmp(*args, "-pwri_password")) { 301 if (!args[1]) 302 goto argerr; 303 args++; 304 pwri_pass = (unsigned char *) *args; 305 } else if (!strcmp(*args, "-econtent_type")) { 306 if (!args[1]) 307 goto argerr; 308 args++; 309 econtent_type = OBJ_txt2obj(*args, 0); 310 if (!econtent_type) { 311 BIO_printf(bio_err, "Invalid OID %s\n", *args); 312 goto argerr; 313 } 314 } 315 #ifndef OPENSSL_NO_ENGINE 316 else if (!strcmp(*args, "-engine")) { 317 if (!args[1]) 318 goto argerr; 319 engine = *++args; 320 } 321 #endif 322 else if (!strcmp(*args, "-passin")) { 323 if (!args[1]) 324 goto argerr; 325 passargin = *++args; 326 } else if (!strcmp(*args, "-to")) { 327 if (!args[1]) 328 goto argerr; 329 to = *++args; 330 } else if (!strcmp(*args, "-from")) { 331 if (!args[1]) 332 goto argerr; 333 from = *++args; 334 } else if (!strcmp(*args, "-subject")) { 335 if (!args[1]) 336 goto argerr; 337 subject = *++args; 338 } else if (!strcmp(*args, "-signer")) { 339 if (!args[1]) 340 goto argerr; 341 /* If previous -signer argument add signer to list */ 342 343 if (signerfile) { 344 if (!sksigners) 345 sksigners = 346 sk_OPENSSL_STRING_new_null(); 347 sk_OPENSSL_STRING_push(sksigners, signerfile); 348 if (!keyfile) 349 keyfile = signerfile; 350 if (!skkeys) 351 skkeys = sk_OPENSSL_STRING_new_null(); 352 sk_OPENSSL_STRING_push(skkeys, keyfile); 353 keyfile = NULL; 354 } 355 signerfile = *++args; 356 } else if (!strcmp(*args, "-recip")) { 357 if (!args[1]) 358 goto argerr; 359 recipfile = *++args; 360 } else if (!strcmp(*args, "-certsout")) { 361 if (!args[1]) 362 goto argerr; 363 certsoutfile = *++args; 364 } else if (!strcmp(*args, "-md")) { 365 if (!args[1]) 366 goto argerr; 367 sign_md = EVP_get_digestbyname(*++args); 368 if (sign_md == NULL) { 369 BIO_printf(bio_err, "Unknown digest %s\n", 370 *args); 371 goto argerr; 372 } 373 } else if (!strcmp(*args, "-inkey")) { 374 if (!args[1]) 375 goto argerr; 376 /* If previous -inkey arument add signer to list */ 377 if (keyfile) { 378 if (!signerfile) { 379 BIO_puts(bio_err, 380 "Illegal -inkey without -signer\n"); 381 goto argerr; 382 } 383 if (!sksigners) 384 sksigners = 385 sk_OPENSSL_STRING_new_null(); 386 sk_OPENSSL_STRING_push(sksigners, signerfile); 387 signerfile = NULL; 388 if (!skkeys) 389 skkeys = sk_OPENSSL_STRING_new_null(); 390 sk_OPENSSL_STRING_push(skkeys, keyfile); 391 } 392 keyfile = *++args; 393 } else if (!strcmp(*args, "-keyform")) { 394 if (!args[1]) 395 goto argerr; 396 keyform = str2fmt(*++args); 397 } else if (!strcmp(*args, "-rctform")) { 398 if (!args[1]) 399 goto argerr; 400 rctformat = str2fmt(*++args); 401 } else if (!strcmp(*args, "-certfile")) { 402 if (!args[1]) 403 goto argerr; 404 certfile = *++args; 405 } else if (!strcmp(*args, "-CAfile")) { 406 if (!args[1]) 407 goto argerr; 408 CAfile = *++args; 409 } else if (!strcmp(*args, "-CApath")) { 410 if (!args[1]) 411 goto argerr; 412 CApath = *++args; 413 } else if (!strcmp(*args, "-in")) { 414 if (!args[1]) 415 goto argerr; 416 infile = *++args; 417 } else if (!strcmp(*args, "-inform")) { 418 if (!args[1]) 419 goto argerr; 420 informat = str2fmt(*++args); 421 } else if (!strcmp(*args, "-outform")) { 422 if (!args[1]) 423 goto argerr; 424 outformat = str2fmt(*++args); 425 } else if (!strcmp(*args, "-out")) { 426 if (!args[1]) 427 goto argerr; 428 outfile = *++args; 429 } else if (!strcmp(*args, "-content")) { 430 if (!args[1]) 431 goto argerr; 432 contfile = *++args; 433 } else if (args_verify(&args, NULL, &badarg, bio_err, &vpm)) 434 continue; 435 else if ((cipher = EVP_get_cipherbyname(*args + 1)) == NULL) 436 badarg = 1; 437 args++; 438 } 439 440 if (((rr_allorfirst != -1) || rr_from) && !rr_to) { 441 BIO_puts(bio_err, "No Signed Receipts Recipients\n"); 442 goto argerr; 443 } 444 if (!(operation & SMIME_SIGNERS) && (rr_to || rr_from)) { 445 BIO_puts(bio_err, "Signed receipts only allowed with -sign\n"); 446 goto argerr; 447 } 448 if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) { 449 BIO_puts(bio_err, "Multiple signers or keys not allowed\n"); 450 goto argerr; 451 } 452 if (operation & SMIME_SIGNERS) { 453 if (keyfile && !signerfile) { 454 BIO_puts(bio_err, "Illegal -inkey without -signer\n"); 455 goto argerr; 456 } 457 /* Check to see if any final signer needs to be appended */ 458 if (signerfile) { 459 if (!sksigners) 460 sksigners = sk_OPENSSL_STRING_new_null(); 461 sk_OPENSSL_STRING_push(sksigners, signerfile); 462 if (!skkeys) 463 skkeys = sk_OPENSSL_STRING_new_null(); 464 if (!keyfile) 465 keyfile = signerfile; 466 sk_OPENSSL_STRING_push(skkeys, keyfile); 467 } 468 if (!sksigners) { 469 BIO_printf(bio_err, 470 "No signer certificate specified\n"); 471 badarg = 1; 472 } 473 signerfile = NULL; 474 keyfile = NULL; 475 } else if (operation == SMIME_DECRYPT) { 476 if (!recipfile && !keyfile && !secret_key && !pwri_pass) { 477 BIO_printf(bio_err, 478 "No recipient certificate or key specified\n"); 479 badarg = 1; 480 } 481 } else if (operation == SMIME_ENCRYPT) { 482 if (!*args && !secret_key && !pwri_pass) { 483 BIO_printf(bio_err, 484 "No recipient(s) certificate(s) specified\n"); 485 badarg = 1; 486 } 487 } else if (!operation) 488 badarg = 1; 489 490 if (badarg) { 491 argerr: 492 BIO_printf(bio_err, "Usage cms [options] cert.pem ...\n"); 493 BIO_printf(bio_err, "where options are\n"); 494 BIO_printf(bio_err, "-encrypt encrypt message\n"); 495 BIO_printf(bio_err, "-decrypt decrypt encrypted message\n"); 496 BIO_printf(bio_err, "-sign sign message\n"); 497 BIO_printf(bio_err, "-verify verify signed message\n"); 498 BIO_printf(bio_err, "-cmsout output CMS structure\n"); 499 #ifndef OPENSSL_NO_DES 500 BIO_printf(bio_err, "-des3 encrypt with triple DES\n"); 501 BIO_printf(bio_err, "-des encrypt with DES\n"); 502 #endif 503 #ifndef OPENSSL_NO_RC2 504 BIO_printf(bio_err, "-rc2-40 encrypt with RC2-40 (default)\n"); 505 BIO_printf(bio_err, "-rc2-64 encrypt with RC2-64\n"); 506 BIO_printf(bio_err, "-rc2-128 encrypt with RC2-128\n"); 507 #endif 508 #ifndef OPENSSL_NO_AES 509 BIO_printf(bio_err, "-aes128, -aes192, -aes256\n"); 510 BIO_printf(bio_err, " encrypt PEM output with cbc aes\n"); 511 #endif 512 #ifndef OPENSSL_NO_CAMELLIA 513 BIO_printf(bio_err, "-camellia128, -camellia192, -camellia256\n"); 514 BIO_printf(bio_err, " encrypt PEM output with cbc camellia\n"); 515 #endif 516 BIO_printf(bio_err, "-nointern don't search certificates in message for signer\n"); 517 BIO_printf(bio_err, "-nosigs don't verify message signature\n"); 518 BIO_printf(bio_err, "-noverify don't verify signers certificate\n"); 519 BIO_printf(bio_err, "-nocerts don't include signers certificate when signing\n"); 520 BIO_printf(bio_err, "-nodetach use opaque signing\n"); 521 BIO_printf(bio_err, "-noattr don't include any signed attributes\n"); 522 BIO_printf(bio_err, "-binary don't translate message to text\n"); 523 BIO_printf(bio_err, "-certfile file other certificates file\n"); 524 BIO_printf(bio_err, "-certsout file certificate output file\n"); 525 BIO_printf(bio_err, "-signer file signer certificate file\n"); 526 BIO_printf(bio_err, "-recip file recipient certificate file for decryption\n"); 527 BIO_printf(bio_err, "-keyid use subject key identifier\n"); 528 BIO_printf(bio_err, "-in file input file\n"); 529 BIO_printf(bio_err, "-inform arg input format SMIME (default), PEM or DER\n"); 530 BIO_printf(bio_err, "-inkey file input private key (if not signer or recipient)\n"); 531 BIO_printf(bio_err, "-keyform arg input private key format (PEM or ENGINE)\n"); 532 BIO_printf(bio_err, "-out file output file\n"); 533 BIO_printf(bio_err, "-outform arg output format SMIME (default), PEM or DER\n"); 534 BIO_printf(bio_err, "-content file supply or override content for detached signature\n"); 535 BIO_printf(bio_err, "-to addr to address\n"); 536 BIO_printf(bio_err, "-from ad from address\n"); 537 BIO_printf(bio_err, "-subject s subject\n"); 538 BIO_printf(bio_err, "-text include or delete text MIME headers\n"); 539 BIO_printf(bio_err, "-CApath dir trusted certificates directory\n"); 540 BIO_printf(bio_err, "-CAfile file trusted certificates file\n"); 541 BIO_printf(bio_err, "-crl_check check revocation status of signer's certificate using CRLs\n"); 542 BIO_printf(bio_err, "-crl_check_all check revocation status of signer's certificate chain using CRLs\n"); 543 #ifndef OPENSSL_NO_ENGINE 544 BIO_printf(bio_err, "-engine e use engine e, possibly a hardware device.\n"); 545 #endif 546 BIO_printf(bio_err, "-passin arg input file pass phrase source\n"); 547 BIO_printf(bio_err, "cert.pem recipient certificate(s) for encryption\n"); 548 goto end; 549 } 550 #ifndef OPENSSL_NO_ENGINE 551 e = setup_engine(bio_err, engine, 0); 552 #endif 553 554 if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) { 555 BIO_printf(bio_err, "Error getting password\n"); 556 goto end; 557 } 558 ret = 2; 559 560 if (!(operation & SMIME_SIGNERS)) 561 flags &= ~CMS_DETACHED; 562 563 if (operation & SMIME_OP) { 564 if (outformat == FORMAT_ASN1) 565 outmode = "wb"; 566 } else { 567 if (flags & CMS_BINARY) 568 outmode = "wb"; 569 } 570 571 if (operation & SMIME_IP) { 572 if (informat == FORMAT_ASN1) 573 inmode = "rb"; 574 } else { 575 if (flags & CMS_BINARY) 576 inmode = "rb"; 577 } 578 579 if (operation == SMIME_ENCRYPT) { 580 if (!cipher) { 581 #ifndef OPENSSL_NO_DES 582 cipher = EVP_des_ede3_cbc(); 583 #else 584 BIO_printf(bio_err, "No cipher selected\n"); 585 goto end; 586 #endif 587 } 588 if (secret_key && !secret_keyid) { 589 BIO_printf(bio_err, "No secret key id\n"); 590 goto end; 591 } 592 if (*args) 593 encerts = sk_X509_new_null(); 594 while (*args) { 595 if (!(cert = load_cert(bio_err, *args, FORMAT_PEM, 596 NULL, e, "recipient certificate file"))) 597 goto end; 598 sk_X509_push(encerts, cert); 599 cert = NULL; 600 args++; 601 } 602 } 603 if (certfile) { 604 if (!(other = load_certs(bio_err, certfile, FORMAT_PEM, NULL, 605 e, "certificate file"))) { 606 ERR_print_errors(bio_err); 607 goto end; 608 } 609 } 610 if (recipfile && (operation == SMIME_DECRYPT)) { 611 if (!(recip = load_cert(bio_err, recipfile, FORMAT_PEM, NULL, 612 e, "recipient certificate file"))) { 613 ERR_print_errors(bio_err); 614 goto end; 615 } 616 } 617 if (operation == SMIME_SIGN_RECEIPT) { 618 if (!(signer = load_cert(bio_err, signerfile, FORMAT_PEM, NULL, 619 e, "receipt signer certificate file"))) { 620 ERR_print_errors(bio_err); 621 goto end; 622 } 623 } 624 if (operation == SMIME_DECRYPT) { 625 if (!keyfile) 626 keyfile = recipfile; 627 } else if ((operation == SMIME_SIGN) || 628 (operation == SMIME_SIGN_RECEIPT)) { 629 if (!keyfile) 630 keyfile = signerfile; 631 } else 632 keyfile = NULL; 633 634 if (keyfile) { 635 key = load_key(bio_err, keyfile, keyform, 0, passin, e, 636 "signing key file"); 637 if (!key) 638 goto end; 639 } 640 if (infile) { 641 if (!(in = BIO_new_file(infile, inmode))) { 642 BIO_printf(bio_err, 643 "Can't open input file %s\n", infile); 644 goto end; 645 } 646 } else 647 in = BIO_new_fp(stdin, BIO_NOCLOSE); 648 649 if (operation & SMIME_IP) { 650 if (informat == FORMAT_SMIME) 651 cms = SMIME_read_CMS(in, &indata); 652 else if (informat == FORMAT_PEM) 653 cms = PEM_read_bio_CMS(in, NULL, NULL, NULL); 654 else if (informat == FORMAT_ASN1) 655 cms = d2i_CMS_bio(in, NULL); 656 else { 657 BIO_printf(bio_err, "Bad input format for CMS file\n"); 658 goto end; 659 } 660 661 if (!cms) { 662 BIO_printf(bio_err, "Error reading S/MIME message\n"); 663 goto end; 664 } 665 if (contfile) { 666 BIO_free(indata); 667 if (!(indata = BIO_new_file(contfile, "rb"))) { 668 BIO_printf(bio_err, 669 "Can't read content file %s\n", contfile); 670 goto end; 671 } 672 } 673 if (certsoutfile) { 674 STACK_OF(X509) * allcerts; 675 allcerts = CMS_get1_certs(cms); 676 if (!save_certs(certsoutfile, allcerts)) { 677 BIO_printf(bio_err, 678 "Error writing certs to %s\n", 679 certsoutfile); 680 ret = 5; 681 goto end; 682 } 683 sk_X509_pop_free(allcerts, X509_free); 684 } 685 } 686 if (rctfile) { 687 char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r"; 688 if (!(rctin = BIO_new_file(rctfile, rctmode))) { 689 BIO_printf(bio_err, 690 "Can't open receipt file %s\n", rctfile); 691 goto end; 692 } 693 if (rctformat == FORMAT_SMIME) 694 rcms = SMIME_read_CMS(rctin, NULL); 695 else if (rctformat == FORMAT_PEM) 696 rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL); 697 else if (rctformat == FORMAT_ASN1) 698 rcms = d2i_CMS_bio(rctin, NULL); 699 else { 700 BIO_printf(bio_err, "Bad input format for receipt\n"); 701 goto end; 702 } 703 704 if (!rcms) { 705 BIO_printf(bio_err, "Error reading receipt\n"); 706 goto end; 707 } 708 } 709 if (outfile) { 710 if (!(out = BIO_new_file(outfile, outmode))) { 711 BIO_printf(bio_err, 712 "Can't open output file %s\n", outfile); 713 goto end; 714 } 715 } else { 716 out = BIO_new_fp(stdout, BIO_NOCLOSE); 717 } 718 719 if ((operation == SMIME_VERIFY) || 720 (operation == SMIME_VERIFY_RECEIPT)) { 721 if (!(store = setup_verify(bio_err, CAfile, CApath))) 722 goto end; 723 X509_STORE_set_verify_cb(store, cms_cb); 724 if (vpm) 725 X509_STORE_set1_param(store, vpm); 726 } 727 ret = 3; 728 729 if (operation == SMIME_DATA_CREATE) { 730 cms = CMS_data_create(in, flags); 731 } else if (operation == SMIME_DIGEST_CREATE) { 732 cms = CMS_digest_create(in, sign_md, flags); 733 } else if (operation == SMIME_COMPRESS) { 734 cms = CMS_compress(in, -1, flags); 735 } else if (operation == SMIME_ENCRYPT) { 736 flags |= CMS_PARTIAL; 737 cms = CMS_encrypt(encerts, in, cipher, flags); 738 if (!cms) 739 goto end; 740 if (secret_key) { 741 if (!CMS_add0_recipient_key(cms, NID_undef, secret_key, 742 secret_keylen, secret_keyid, secret_keyidlen, 743 NULL, NULL, NULL)) 744 goto end; 745 /* NULL these because call absorbs them */ 746 secret_key = NULL; 747 secret_keyid = NULL; 748 } 749 if (pwri_pass) { 750 pwri_tmp = strdup(pwri_pass); 751 if (!pwri_tmp) 752 goto end; 753 if (!CMS_add0_recipient_password(cms, -1, NID_undef, 754 NID_undef, pwri_tmp, -1, NULL)) 755 goto end; 756 pwri_tmp = NULL; 757 } 758 if (!(flags & CMS_STREAM)) { 759 if (!CMS_final(cms, in, NULL, flags)) 760 goto end; 761 } 762 } else if (operation == SMIME_ENCRYPTED_ENCRYPT) { 763 cms = CMS_EncryptedData_encrypt(in, cipher, secret_key, 764 secret_keylen, flags); 765 766 } else if (operation == SMIME_SIGN_RECEIPT) { 767 CMS_ContentInfo *srcms = NULL; 768 STACK_OF(CMS_SignerInfo) * sis; 769 CMS_SignerInfo *si; 770 sis = CMS_get0_SignerInfos(cms); 771 if (!sis) 772 goto end; 773 si = sk_CMS_SignerInfo_value(sis, 0); 774 srcms = CMS_sign_receipt(si, signer, key, other, flags); 775 if (!srcms) 776 goto end; 777 CMS_ContentInfo_free(cms); 778 cms = srcms; 779 } else if (operation & SMIME_SIGNERS) { 780 int i; 781 /* 782 * If detached data content we enable streaming if S/MIME 783 * output format. 784 */ 785 if (operation == SMIME_SIGN) { 786 787 if (flags & CMS_DETACHED) { 788 if (outformat == FORMAT_SMIME) 789 flags |= CMS_STREAM; 790 } 791 flags |= CMS_PARTIAL; 792 cms = CMS_sign(NULL, NULL, other, in, flags); 793 if (!cms) 794 goto end; 795 if (econtent_type) 796 CMS_set1_eContentType(cms, econtent_type); 797 798 if (rr_to) { 799 rr = make_receipt_request(rr_to, rr_allorfirst, 800 rr_from); 801 if (!rr) { 802 BIO_puts(bio_err, 803 "Signed Receipt Request Creation Error\n"); 804 goto end; 805 } 806 } 807 } else 808 flags |= CMS_REUSE_DIGEST; 809 for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) { 810 CMS_SignerInfo *si; 811 signerfile = sk_OPENSSL_STRING_value(sksigners, i); 812 keyfile = sk_OPENSSL_STRING_value(skkeys, i); 813 signer = load_cert(bio_err, signerfile, FORMAT_PEM, 814 NULL, e, "signer certificate"); 815 if (!signer) 816 goto end; 817 key = load_key(bio_err, keyfile, keyform, 0, passin, e, 818 "signing key file"); 819 if (!key) 820 goto end; 821 si = CMS_add1_signer(cms, signer, key, sign_md, flags); 822 if (!si) 823 goto end; 824 if (rr && !CMS_add1_ReceiptRequest(si, rr)) 825 goto end; 826 X509_free(signer); 827 signer = NULL; 828 EVP_PKEY_free(key); 829 key = NULL; 830 } 831 /* If not streaming or resigning finalize structure */ 832 if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) { 833 if (!CMS_final(cms, in, NULL, flags)) 834 goto end; 835 } 836 } 837 if (!cms) { 838 BIO_printf(bio_err, "Error creating CMS structure\n"); 839 goto end; 840 } 841 ret = 4; 842 if (operation == SMIME_DECRYPT) { 843 if (flags & CMS_DEBUG_DECRYPT) 844 CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags); 845 846 if (secret_key) { 847 if (!CMS_decrypt_set1_key(cms, secret_key, 848 secret_keylen, secret_keyid, secret_keyidlen)) { 849 BIO_puts(bio_err, 850 "Error decrypting CMS using secret key\n"); 851 goto end; 852 } 853 } 854 if (key) { 855 if (!CMS_decrypt_set1_pkey(cms, key, recip)) { 856 BIO_puts(bio_err, 857 "Error decrypting CMS using private key\n"); 858 goto end; 859 } 860 } 861 if (pwri_pass) { 862 if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) { 863 BIO_puts(bio_err, 864 "Error decrypting CMS using password\n"); 865 goto end; 866 } 867 } 868 if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) { 869 BIO_printf(bio_err, "Error decrypting CMS structure\n"); 870 goto end; 871 } 872 } else if (operation == SMIME_DATAOUT) { 873 if (!CMS_data(cms, out, flags)) 874 goto end; 875 } else if (operation == SMIME_UNCOMPRESS) { 876 if (!CMS_uncompress(cms, indata, out, flags)) 877 goto end; 878 } else if (operation == SMIME_DIGEST_VERIFY) { 879 if (CMS_digest_verify(cms, indata, out, flags) > 0) 880 BIO_printf(bio_err, "Verification successful\n"); 881 else { 882 BIO_printf(bio_err, "Verification failure\n"); 883 goto end; 884 } 885 } else if (operation == SMIME_ENCRYPTED_DECRYPT) { 886 if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen, 887 indata, out, flags)) 888 goto end; 889 } else if (operation == SMIME_VERIFY) { 890 if (CMS_verify(cms, other, store, indata, out, flags) > 0) 891 BIO_printf(bio_err, "Verification successful\n"); 892 else { 893 BIO_printf(bio_err, "Verification failure\n"); 894 if (verify_retcode) 895 ret = verify_err + 32; 896 goto end; 897 } 898 if (signerfile) { 899 STACK_OF(X509) * signers; 900 signers = CMS_get0_signers(cms); 901 if (!save_certs(signerfile, signers)) { 902 BIO_printf(bio_err, 903 "Error writing signers to %s\n", 904 signerfile); 905 ret = 5; 906 goto end; 907 } 908 sk_X509_free(signers); 909 } 910 if (rr_print) 911 receipt_request_print(bio_err, cms); 912 913 } else if (operation == SMIME_VERIFY_RECEIPT) { 914 if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0) 915 BIO_printf(bio_err, "Verification successful\n"); 916 else { 917 BIO_printf(bio_err, "Verification failure\n"); 918 goto end; 919 } 920 } else { 921 if (noout) { 922 if (print) 923 CMS_ContentInfo_print_ctx(out, cms, 0, NULL); 924 } else if (outformat == FORMAT_SMIME) { 925 if (to) 926 BIO_printf(out, "To: %s\n", to); 927 if (from) 928 BIO_printf(out, "From: %s\n", from); 929 if (subject) 930 BIO_printf(out, "Subject: %s\n", subject); 931 if (operation == SMIME_RESIGN) 932 ret = SMIME_write_CMS(out, cms, indata, flags); 933 else 934 ret = SMIME_write_CMS(out, cms, in, flags); 935 } else if (outformat == FORMAT_PEM) 936 ret = PEM_write_bio_CMS_stream(out, cms, in, flags); 937 else if (outformat == FORMAT_ASN1) 938 ret = i2d_CMS_bio_stream(out, cms, in, flags); 939 else { 940 BIO_printf(bio_err, "Bad output format for CMS file\n"); 941 goto end; 942 } 943 if (ret <= 0) { 944 ret = 6; 945 goto end; 946 } 947 } 948 ret = 0; 949 950 end: 951 if (ret) 952 ERR_print_errors(bio_err); 953 sk_X509_pop_free(encerts, X509_free); 954 sk_X509_pop_free(other, X509_free); 955 if (vpm) 956 X509_VERIFY_PARAM_free(vpm); 957 if (sksigners) 958 sk_OPENSSL_STRING_free(sksigners); 959 if (skkeys) 960 sk_OPENSSL_STRING_free(skkeys); 961 free(secret_key); 962 free(secret_keyid); 963 free(pwri_tmp); 964 if (econtent_type) 965 ASN1_OBJECT_free(econtent_type); 966 if (rr) 967 CMS_ReceiptRequest_free(rr); 968 if (rr_to) 969 sk_OPENSSL_STRING_free(rr_to); 970 if (rr_from) 971 sk_OPENSSL_STRING_free(rr_from); 972 X509_STORE_free(store); 973 X509_free(cert); 974 X509_free(recip); 975 X509_free(signer); 976 EVP_PKEY_free(key); 977 CMS_ContentInfo_free(cms); 978 CMS_ContentInfo_free(rcms); 979 BIO_free(rctin); 980 BIO_free(in); 981 BIO_free(indata); 982 BIO_free_all(out); 983 free(passin); 984 return (ret); 985 } 986 987 static int 988 save_certs(char *signerfile, STACK_OF(X509) * signers) 989 { 990 int i; 991 BIO *tmp; 992 993 if (!signerfile) 994 return 1; 995 tmp = BIO_new_file(signerfile, "w"); 996 if (!tmp) 997 return 0; 998 for (i = 0; i < sk_X509_num(signers); i++) 999 PEM_write_bio_X509(tmp, sk_X509_value(signers, i)); 1000 BIO_free(tmp); 1001 return 1; 1002 } 1003 1004 /* Minimal callback just to output policy info (if any) */ 1005 1006 static int 1007 cms_cb(int ok, X509_STORE_CTX * ctx) 1008 { 1009 int error; 1010 1011 error = X509_STORE_CTX_get_error(ctx); 1012 1013 verify_err = error; 1014 1015 if ((error != X509_V_ERR_NO_EXPLICIT_POLICY) && 1016 ((error != X509_V_OK) || (ok != 2))) 1017 return ok; 1018 1019 policies_print(NULL, ctx); 1020 1021 return ok; 1022 } 1023 1024 static void 1025 gnames_stack_print(BIO * out, STACK_OF(GENERAL_NAMES) * gns) 1026 { 1027 STACK_OF(GENERAL_NAME) * gens; 1028 GENERAL_NAME *gen; 1029 int i, j; 1030 1031 for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) { 1032 gens = sk_GENERAL_NAMES_value(gns, i); 1033 for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) { 1034 gen = sk_GENERAL_NAME_value(gens, j); 1035 BIO_puts(out, " "); 1036 GENERAL_NAME_print(out, gen); 1037 BIO_puts(out, "\n"); 1038 } 1039 } 1040 return; 1041 } 1042 1043 static void 1044 receipt_request_print(BIO * out, CMS_ContentInfo * cms) 1045 { 1046 STACK_OF(CMS_SignerInfo) * sis; 1047 CMS_SignerInfo *si; 1048 CMS_ReceiptRequest *rr; 1049 int allorfirst; 1050 STACK_OF(GENERAL_NAMES) * rto, *rlist; 1051 ASN1_STRING *scid; 1052 int i, rv; 1053 1054 sis = CMS_get0_SignerInfos(cms); 1055 for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) { 1056 si = sk_CMS_SignerInfo_value(sis, i); 1057 rv = CMS_get1_ReceiptRequest(si, &rr); 1058 BIO_printf(bio_err, "Signer %d:\n", i + 1); 1059 if (rv == 0) 1060 BIO_puts(bio_err, " No Receipt Request\n"); 1061 else if (rv < 0) { 1062 BIO_puts(bio_err, " Receipt Request Parse Error\n"); 1063 ERR_print_errors(bio_err); 1064 } else { 1065 char *id; 1066 int idlen; 1067 CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst, 1068 &rlist, &rto); 1069 BIO_puts(out, " Signed Content ID:\n"); 1070 idlen = ASN1_STRING_length(scid); 1071 id = (char *) ASN1_STRING_data(scid); 1072 BIO_dump_indent(out, id, idlen, 4); 1073 BIO_puts(out, " Receipts From"); 1074 if (rlist) { 1075 BIO_puts(out, " List:\n"); 1076 gnames_stack_print(out, rlist); 1077 } else if (allorfirst == 1) 1078 BIO_puts(out, ": First Tier\n"); 1079 else if (allorfirst == 0) 1080 BIO_puts(out, ": All\n"); 1081 else 1082 BIO_printf(out, " Unknown (%d)\n", allorfirst); 1083 BIO_puts(out, " Receipts To:\n"); 1084 gnames_stack_print(out, rto); 1085 } 1086 if (rr) 1087 CMS_ReceiptRequest_free(rr); 1088 } 1089 } 1090 1091 static STACK_OF(GENERAL_NAMES) * 1092 make_names_stack(STACK_OF(OPENSSL_STRING) * ns) 1093 { 1094 int i; 1095 STACK_OF(GENERAL_NAMES) * ret; 1096 GENERAL_NAMES *gens = NULL; 1097 GENERAL_NAME *gen = NULL; 1098 ret = sk_GENERAL_NAMES_new_null(); 1099 if (!ret) 1100 goto err; 1101 for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++) { 1102 char *str = sk_OPENSSL_STRING_value(ns, i); 1103 gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0); 1104 if (!gen) 1105 goto err; 1106 gens = GENERAL_NAMES_new(); 1107 if (!gens) 1108 goto err; 1109 if (!sk_GENERAL_NAME_push(gens, gen)) 1110 goto err; 1111 gen = NULL; 1112 if (!sk_GENERAL_NAMES_push(ret, gens)) 1113 goto err; 1114 gens = NULL; 1115 } 1116 1117 return ret; 1118 1119 err: 1120 if (ret) 1121 sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free); 1122 if (gens) 1123 GENERAL_NAMES_free(gens); 1124 if (gen) 1125 GENERAL_NAME_free(gen); 1126 return NULL; 1127 } 1128 1129 1130 static CMS_ReceiptRequest * 1131 make_receipt_request(STACK_OF(OPENSSL_STRING) * rr_to, int rr_allorfirst, 1132 STACK_OF(OPENSSL_STRING) * rr_from) 1133 { 1134 STACK_OF(GENERAL_NAMES) * rct_to, *rct_from; 1135 CMS_ReceiptRequest *rr; 1136 1137 rct_to = make_names_stack(rr_to); 1138 if (!rct_to) 1139 goto err; 1140 if (rr_from) { 1141 rct_from = make_names_stack(rr_from); 1142 if (!rct_from) 1143 goto err; 1144 } else 1145 rct_from = NULL; 1146 rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from, 1147 rct_to); 1148 return rr; 1149 1150 err: 1151 return NULL; 1152 } 1153 1154 #endif 1155