1 /* apps/dgst.c */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 #include <stdio.h> 60 #include <string.h> 61 #include <stdlib.h> 62 #include "apps.h" 63 #include <openssl/bio.h> 64 #include <openssl/err.h> 65 #include <openssl/evp.h> 66 #include <openssl/objects.h> 67 #include <openssl/x509.h> 68 #include <openssl/pem.h> 69 #include <openssl/hmac.h> 70 71 #undef BUFSIZE 72 #define BUFSIZE 1024*8 73 74 #undef PROG 75 #define PROG dgst_main 76 77 int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout, 78 EVP_PKEY *key, unsigned char *sigin, int siglen, 79 const char *sig_name, const char *md_name, 80 const char *file,BIO *bmd); 81 82 static void list_md_fn(const EVP_MD *m, 83 const char *from, const char *to, void *arg) 84 { 85 const char *mname; 86 /* Skip aliases */ 87 if (!m) 88 return; 89 mname = OBJ_nid2ln(EVP_MD_type(m)); 90 /* Skip shortnames */ 91 if (strcmp(from, mname)) 92 return; 93 /* Skip clones */ 94 if (EVP_MD_flags(m) & EVP_MD_FLAG_PKEY_DIGEST) 95 return; 96 if (strchr(mname, ' ')) 97 mname= EVP_MD_name(m); 98 BIO_printf(arg, "-%-14s to use the %s message digest algorithm\n", 99 mname, mname); 100 } 101 102 int MAIN(int, char **); 103 104 int MAIN(int argc, char **argv) 105 { 106 ENGINE *e = NULL; 107 unsigned char *buf=NULL; 108 int i,err=1; 109 const EVP_MD *md=NULL,*m; 110 BIO *in=NULL,*inp; 111 BIO *bmd=NULL; 112 BIO *out = NULL; 113 #define PROG_NAME_SIZE 39 114 char pname[PROG_NAME_SIZE+1]; 115 int separator=0; 116 int debug=0; 117 int keyform=FORMAT_PEM; 118 const char *outfile = NULL, *keyfile = NULL; 119 const char *sigfile = NULL, *randfile = NULL; 120 int out_bin = -1, want_pub = 0, do_verify = 0; 121 EVP_PKEY *sigkey = NULL; 122 unsigned char *sigbuf = NULL; 123 int siglen = 0; 124 char *passargin = NULL, *passin = NULL; 125 #ifndef OPENSSL_NO_ENGINE 126 char *engine=NULL; 127 #endif 128 char *hmac_key=NULL; 129 char *mac_name=NULL; 130 STACK_OF(OPENSSL_STRING) *sigopts = NULL, *macopts = NULL; 131 132 apps_startup(); 133 134 if ((buf=(unsigned char *)OPENSSL_malloc(BUFSIZE)) == NULL) 135 { 136 BIO_printf(bio_err,"out of memory\n"); 137 goto end; 138 } 139 if (bio_err == NULL) 140 if ((bio_err=BIO_new(BIO_s_file())) != NULL) 141 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 142 143 if (!load_config(bio_err, NULL)) 144 goto end; 145 146 /* first check the program name */ 147 program_name(argv[0],pname,sizeof pname); 148 149 md=EVP_get_digestbyname(pname); 150 151 argc--; 152 argv++; 153 while (argc > 0) 154 { 155 if ((*argv)[0] != '-') break; 156 if (strcmp(*argv,"-c") == 0) 157 separator=1; 158 else if (strcmp(*argv,"-rand") == 0) 159 { 160 if (--argc < 1) break; 161 randfile=*(++argv); 162 } 163 else if (strcmp(*argv,"-out") == 0) 164 { 165 if (--argc < 1) break; 166 outfile=*(++argv); 167 } 168 else if (strcmp(*argv,"-sign") == 0) 169 { 170 if (--argc < 1) break; 171 keyfile=*(++argv); 172 } 173 else if (!strcmp(*argv,"-passin")) 174 { 175 if (--argc < 1) 176 break; 177 passargin=*++argv; 178 } 179 else if (strcmp(*argv,"-verify") == 0) 180 { 181 if (--argc < 1) break; 182 keyfile=*(++argv); 183 want_pub = 1; 184 do_verify = 1; 185 } 186 else if (strcmp(*argv,"-prverify") == 0) 187 { 188 if (--argc < 1) break; 189 keyfile=*(++argv); 190 do_verify = 1; 191 } 192 else if (strcmp(*argv,"-signature") == 0) 193 { 194 if (--argc < 1) break; 195 sigfile=*(++argv); 196 } 197 else if (strcmp(*argv,"-keyform") == 0) 198 { 199 if (--argc < 1) break; 200 keyform=str2fmt(*(++argv)); 201 } 202 #ifndef OPENSSL_NO_ENGINE 203 else if (strcmp(*argv,"-engine") == 0) 204 { 205 if (--argc < 1) break; 206 engine= *(++argv); 207 e = setup_engine(bio_err, engine, 0); 208 } 209 #endif 210 else if (strcmp(*argv,"-hex") == 0) 211 out_bin = 0; 212 else if (strcmp(*argv,"-binary") == 0) 213 out_bin = 1; 214 else if (strcmp(*argv,"-d") == 0) 215 debug=1; 216 else if (!strcmp(*argv,"-hmac")) 217 { 218 if (--argc < 1) 219 break; 220 hmac_key=*++argv; 221 } 222 else if (!strcmp(*argv,"-mac")) 223 { 224 if (--argc < 1) 225 break; 226 mac_name=*++argv; 227 } 228 else if (strcmp(*argv,"-sigopt") == 0) 229 { 230 if (--argc < 1) 231 break; 232 if (!sigopts) 233 sigopts = sk_OPENSSL_STRING_new_null(); 234 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, *(++argv))) 235 break; 236 } 237 else if (strcmp(*argv,"-macopt") == 0) 238 { 239 if (--argc < 1) 240 break; 241 if (!macopts) 242 macopts = sk_OPENSSL_STRING_new_null(); 243 if (!macopts || !sk_OPENSSL_STRING_push(macopts, *(++argv))) 244 break; 245 } 246 else if ((m=EVP_get_digestbyname(&((*argv)[1]))) != NULL) 247 md=m; 248 else 249 break; 250 argc--; 251 argv++; 252 } 253 254 255 if(do_verify && !sigfile) { 256 BIO_printf(bio_err, "No signature to verify: use the -signature option\n"); 257 goto end; 258 } 259 260 if ((argc > 0) && (argv[0][0] == '-')) /* bad option */ 261 { 262 BIO_printf(bio_err,"unknown option '%s'\n",*argv); 263 BIO_printf(bio_err,"options are\n"); 264 BIO_printf(bio_err,"-c to output the digest with separating colons\n"); 265 BIO_printf(bio_err,"-d to output debug info\n"); 266 BIO_printf(bio_err,"-hex output as hex dump\n"); 267 BIO_printf(bio_err,"-binary output in binary form\n"); 268 BIO_printf(bio_err,"-sign file sign digest using private key in file\n"); 269 BIO_printf(bio_err,"-verify file verify a signature using public key in file\n"); 270 BIO_printf(bio_err,"-prverify file verify a signature using private key in file\n"); 271 BIO_printf(bio_err,"-keyform arg key file format (PEM or ENGINE)\n"); 272 BIO_printf(bio_err,"-out filename output to filename rather than stdout\n"); 273 BIO_printf(bio_err,"-signature file signature to verify\n"); 274 BIO_printf(bio_err,"-sigopt nm:v signature parameter\n"); 275 BIO_printf(bio_err,"-hmac key create hashed MAC with key\n"); 276 BIO_printf(bio_err,"-mac algorithm create MAC (not neccessarily HMAC)\n"); 277 BIO_printf(bio_err,"-macopt nm:v MAC algorithm parameters or key\n"); 278 #ifndef OPENSSL_NO_ENGINE 279 BIO_printf(bio_err,"-engine e use engine e, possibly a hardware device.\n"); 280 #endif 281 282 EVP_MD_do_all_sorted(list_md_fn, bio_err); 283 goto end; 284 } 285 286 in=BIO_new(BIO_s_file()); 287 bmd=BIO_new(BIO_f_md()); 288 if (debug) 289 { 290 BIO_set_callback(in,BIO_debug_callback); 291 /* needed for windows 3.1 */ 292 BIO_set_callback_arg(in,(char *)bio_err); 293 } 294 295 if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) 296 { 297 BIO_printf(bio_err, "Error getting password\n"); 298 goto end; 299 } 300 301 if ((in == NULL) || (bmd == NULL)) 302 { 303 ERR_print_errors(bio_err); 304 goto end; 305 } 306 307 if(out_bin == -1) { 308 if(keyfile) 309 out_bin = 1; 310 else 311 out_bin = 0; 312 } 313 314 if(randfile) 315 app_RAND_load_file(randfile, bio_err, 0); 316 317 if(outfile) { 318 if(out_bin) 319 out = BIO_new_file(outfile, "wb"); 320 else out = BIO_new_file(outfile, "w"); 321 } else { 322 out = BIO_new_fp(stdout, BIO_NOCLOSE); 323 #ifdef OPENSSL_SYS_VMS 324 { 325 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 326 out = BIO_push(tmpbio, out); 327 } 328 #endif 329 } 330 331 if(!out) { 332 BIO_printf(bio_err, "Error opening output file %s\n", 333 outfile ? outfile : "(stdout)"); 334 ERR_print_errors(bio_err); 335 goto end; 336 } 337 if ((!!mac_name + !!keyfile + !!hmac_key) > 1) 338 { 339 BIO_printf(bio_err, "MAC and Signing key cannot both be specified\n"); 340 goto end; 341 } 342 343 if(keyfile) 344 { 345 if (want_pub) 346 sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL, 347 e, "key file"); 348 else 349 sigkey = load_key(bio_err, keyfile, keyform, 0, passin, 350 e, "key file"); 351 if (!sigkey) 352 { 353 /* load_[pub]key() has already printed an appropriate 354 message */ 355 goto end; 356 } 357 } 358 359 if (mac_name) 360 { 361 EVP_PKEY_CTX *mac_ctx = NULL; 362 int r = 0; 363 if (!init_gen_str(bio_err, &mac_ctx, mac_name,e, 0)) 364 goto mac_end; 365 if (macopts) 366 { 367 char *macopt; 368 for (i = 0; i < sk_OPENSSL_STRING_num(macopts); i++) 369 { 370 macopt = sk_OPENSSL_STRING_value(macopts, i); 371 if (pkey_ctrl_string(mac_ctx, macopt) <= 0) 372 { 373 BIO_printf(bio_err, 374 "MAC parameter error \"%s\"\n", 375 macopt); 376 ERR_print_errors(bio_err); 377 goto mac_end; 378 } 379 } 380 } 381 if (EVP_PKEY_keygen(mac_ctx, &sigkey) <= 0) 382 { 383 BIO_puts(bio_err, "Error generating key\n"); 384 ERR_print_errors(bio_err); 385 goto mac_end; 386 } 387 r = 1; 388 mac_end: 389 if (mac_ctx) 390 EVP_PKEY_CTX_free(mac_ctx); 391 if (r == 0) 392 goto end; 393 } 394 395 if (hmac_key) 396 { 397 sigkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, e, 398 (unsigned char *)hmac_key, -1); 399 if (!sigkey) 400 goto end; 401 } 402 403 if (sigkey) 404 { 405 EVP_MD_CTX *mctx = NULL; 406 EVP_PKEY_CTX *pctx = NULL; 407 int r; 408 if (!BIO_get_md_ctx(bmd, &mctx)) 409 { 410 BIO_printf(bio_err, "Error getting context\n"); 411 ERR_print_errors(bio_err); 412 goto end; 413 } 414 if (do_verify) 415 r = EVP_DigestVerifyInit(mctx, &pctx, md, e, sigkey); 416 else 417 r = EVP_DigestSignInit(mctx, &pctx, md, e, sigkey); 418 if (!r) 419 { 420 BIO_printf(bio_err, "Error setting context\n"); 421 ERR_print_errors(bio_err); 422 goto end; 423 } 424 if (sigopts) 425 { 426 char *sigopt; 427 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) 428 { 429 sigopt = sk_OPENSSL_STRING_value(sigopts, i); 430 if (pkey_ctrl_string(pctx, sigopt) <= 0) 431 { 432 BIO_printf(bio_err, 433 "parameter error \"%s\"\n", 434 sigopt); 435 ERR_print_errors(bio_err); 436 goto end; 437 } 438 } 439 } 440 } 441 /* we use md as a filter, reading from 'in' */ 442 else 443 { 444 if (md == NULL) 445 md = EVP_md5(); 446 if (!BIO_set_md(bmd,md)) 447 { 448 BIO_printf(bio_err, "Error setting digest %s\n", pname); 449 ERR_print_errors(bio_err); 450 goto end; 451 } 452 } 453 454 if(sigfile && sigkey) { 455 BIO *sigbio; 456 sigbio = BIO_new_file(sigfile, "rb"); 457 siglen = EVP_PKEY_size(sigkey); 458 sigbuf = OPENSSL_malloc(siglen); 459 if(!sigbio) { 460 BIO_printf(bio_err, "Error opening signature file %s\n", 461 sigfile); 462 ERR_print_errors(bio_err); 463 goto end; 464 } 465 siglen = BIO_read(sigbio, sigbuf, siglen); 466 BIO_free(sigbio); 467 if(siglen <= 0) { 468 BIO_printf(bio_err, "Error reading signature file %s\n", 469 sigfile); 470 ERR_print_errors(bio_err); 471 goto end; 472 } 473 } 474 inp=BIO_push(bmd,in); 475 476 if (md == NULL) 477 { 478 EVP_MD_CTX *tctx; 479 BIO_get_md_ctx(bmd, &tctx); 480 md = EVP_MD_CTX_md(tctx); 481 } 482 483 if (argc == 0) 484 { 485 BIO_set_fp(in,stdin,BIO_NOCLOSE); 486 err=do_fp(out, buf,inp,separator, out_bin, sigkey, sigbuf, 487 siglen,NULL,NULL,"stdin",bmd); 488 } 489 else 490 { 491 const char *md_name = NULL, *sig_name = NULL; 492 if(!out_bin) 493 { 494 if (sigkey) 495 { 496 const EVP_PKEY_ASN1_METHOD *ameth; 497 ameth = EVP_PKEY_get0_asn1(sigkey); 498 if (ameth) 499 EVP_PKEY_asn1_get0_info(NULL, NULL, 500 NULL, NULL, &sig_name, ameth); 501 } 502 md_name = EVP_MD_name(md); 503 } 504 err = 0; 505 for (i=0; i<argc; i++) 506 { 507 int r; 508 if (BIO_read_filename(in,argv[i]) <= 0) 509 { 510 perror(argv[i]); 511 err++; 512 continue; 513 } 514 else 515 r=do_fp(out,buf,inp,separator,out_bin,sigkey,sigbuf, 516 siglen,sig_name,md_name, argv[i],bmd); 517 if(r) 518 err=r; 519 (void)BIO_reset(bmd); 520 } 521 } 522 end: 523 if (buf != NULL) 524 { 525 OPENSSL_cleanse(buf,BUFSIZE); 526 OPENSSL_free(buf); 527 } 528 if (in != NULL) BIO_free(in); 529 if (passin) 530 OPENSSL_free(passin); 531 BIO_free_all(out); 532 EVP_PKEY_free(sigkey); 533 if (sigopts) 534 sk_OPENSSL_STRING_free(sigopts); 535 if (macopts) 536 sk_OPENSSL_STRING_free(macopts); 537 if(sigbuf) OPENSSL_free(sigbuf); 538 if (bmd != NULL) BIO_free(bmd); 539 apps_shutdown(); 540 OPENSSL_EXIT(err); 541 } 542 543 int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout, 544 EVP_PKEY *key, unsigned char *sigin, int siglen, 545 const char *sig_name, const char *md_name, 546 const char *file,BIO *bmd) 547 { 548 size_t len; 549 int i; 550 551 for (;;) 552 { 553 i=BIO_read(bp,(char *)buf,BUFSIZE); 554 if(i < 0) 555 { 556 BIO_printf(bio_err, "Read Error in %s\n",file); 557 ERR_print_errors(bio_err); 558 return 1; 559 } 560 if (i == 0) break; 561 } 562 if(sigin) 563 { 564 EVP_MD_CTX *ctx; 565 BIO_get_md_ctx(bp, &ctx); 566 i = EVP_DigestVerifyFinal(ctx, sigin, (unsigned int)siglen); 567 if(i > 0) 568 BIO_printf(out, "Verified OK\n"); 569 else if(i == 0) 570 { 571 BIO_printf(out, "Verification Failure\n"); 572 return 1; 573 } 574 else 575 { 576 BIO_printf(bio_err, "Error Verifying Data\n"); 577 ERR_print_errors(bio_err); 578 return 1; 579 } 580 return 0; 581 } 582 if(key) 583 { 584 EVP_MD_CTX *ctx; 585 BIO_get_md_ctx(bp, &ctx); 586 len = BUFSIZE; 587 if(!EVP_DigestSignFinal(ctx, buf, &len)) 588 { 589 BIO_printf(bio_err, "Error Signing Data\n"); 590 ERR_print_errors(bio_err); 591 return 1; 592 } 593 } 594 else 595 { 596 len=BIO_gets(bp,(char *)buf,BUFSIZE); 597 if ((int)len <0) 598 { 599 ERR_print_errors(bio_err); 600 return 1; 601 } 602 } 603 604 if(binout) BIO_write(out, buf, len); 605 else 606 { 607 if (sig_name) 608 BIO_printf(out, "%s-%s(%s)= ", sig_name, md_name, file); 609 else if (md_name) 610 BIO_printf(out, "%s(%s)= ", md_name, file); 611 else 612 BIO_printf(out, "(%s)= ", file); 613 for (i=0; i<(int)len; i++) 614 { 615 if (sep && (i != 0)) 616 BIO_printf(out, ":"); 617 BIO_printf(out, "%02x",buf[i]); 618 } 619 BIO_printf(out, "\n"); 620 } 621 return 0; 622 } 623 624