dgst.c revision 312826
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 77int 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 82static 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 102int MAIN(int, char **); 103 104int MAIN(int argc, char **argv) 105{ 106 ENGINE *e = NULL, *impl = 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 int engine_impl = 0; 128#endif 129 char *hmac_key = NULL; 130 char *mac_name = NULL; 131 int non_fips_allow = 0; 132 STACK_OF(OPENSSL_STRING) *sigopts = NULL, *macopts = NULL; 133 134 apps_startup(); 135 136 if ((buf = (unsigned char *)OPENSSL_malloc(BUFSIZE)) == NULL) { 137 BIO_printf(bio_err, "out of memory\n"); 138 goto end; 139 } 140 if (bio_err == NULL) 141 if ((bio_err = BIO_new(BIO_s_file())) != NULL) 142 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); 143 144 if (!load_config(bio_err, NULL)) 145 goto end; 146 147 /* first check the program name */ 148 program_name(argv[0], pname, sizeof pname); 149 150 md = EVP_get_digestbyname(pname); 151 152 argc--; 153 argv++; 154 while (argc > 0) { 155 if ((*argv)[0] != '-') 156 break; 157 if (strcmp(*argv, "-c") == 0) 158 separator = 1; 159 else if (strcmp(*argv, "-r") == 0) 160 separator = 2; 161 else if (strcmp(*argv, "-rand") == 0) { 162 if (--argc < 1) 163 break; 164 randfile = *(++argv); 165 } else if (strcmp(*argv, "-out") == 0) { 166 if (--argc < 1) 167 break; 168 outfile = *(++argv); 169 } else if (strcmp(*argv, "-sign") == 0) { 170 if (--argc < 1) 171 break; 172 keyfile = *(++argv); 173 } else if (!strcmp(*argv, "-passin")) { 174 if (--argc < 1) 175 break; 176 passargin = *++argv; 177 } else if (strcmp(*argv, "-verify") == 0) { 178 if (--argc < 1) 179 break; 180 keyfile = *(++argv); 181 want_pub = 1; 182 do_verify = 1; 183 } else if (strcmp(*argv, "-prverify") == 0) { 184 if (--argc < 1) 185 break; 186 keyfile = *(++argv); 187 do_verify = 1; 188 } else if (strcmp(*argv, "-signature") == 0) { 189 if (--argc < 1) 190 break; 191 sigfile = *(++argv); 192 } else if (strcmp(*argv, "-keyform") == 0) { 193 if (--argc < 1) 194 break; 195 keyform = str2fmt(*(++argv)); 196 } 197#ifndef OPENSSL_NO_ENGINE 198 else if (strcmp(*argv, "-engine") == 0) { 199 if (--argc < 1) 200 break; 201 engine = *(++argv); 202 e = setup_engine(bio_err, engine, 0); 203 } else if (strcmp(*argv, "-engine_impl") == 0) 204 engine_impl = 1; 205#endif 206 else if (strcmp(*argv, "-hex") == 0) 207 out_bin = 0; 208 else if (strcmp(*argv, "-binary") == 0) 209 out_bin = 1; 210 else if (strcmp(*argv, "-d") == 0) 211 debug = 1; 212 else if (!strcmp(*argv, "-fips-fingerprint")) 213 hmac_key = "etaonrishdlcupfm"; 214 else if (strcmp(*argv, "-non-fips-allow") == 0) 215 non_fips_allow = 1; 216 else if (!strcmp(*argv, "-hmac")) { 217 if (--argc < 1) 218 break; 219 hmac_key = *++argv; 220 } else if (!strcmp(*argv, "-mac")) { 221 if (--argc < 1) 222 break; 223 mac_name = *++argv; 224 } else if (strcmp(*argv, "-sigopt") == 0) { 225 if (--argc < 1) 226 break; 227 if (!sigopts) 228 sigopts = sk_OPENSSL_STRING_new_null(); 229 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, *(++argv))) 230 break; 231 } else if (strcmp(*argv, "-macopt") == 0) { 232 if (--argc < 1) 233 break; 234 if (!macopts) 235 macopts = sk_OPENSSL_STRING_new_null(); 236 if (!macopts || !sk_OPENSSL_STRING_push(macopts, *(++argv))) 237 break; 238 } else if ((m = EVP_get_digestbyname(&((*argv)[1]))) != NULL) 239 md = m; 240 else 241 break; 242 argc--; 243 argv++; 244 } 245 246 if (keyfile != NULL && argc > 1) { 247 BIO_printf(bio_err, "Can only sign or verify one file\n"); 248 goto end; 249 } 250 251 if (do_verify && !sigfile) { 252 BIO_printf(bio_err, 253 "No signature to verify: use the -signature option\n"); 254 goto end; 255 } 256 257 if ((argc > 0) && (argv[0][0] == '-')) { /* bad option */ 258 BIO_printf(bio_err, "unknown option '%s'\n", *argv); 259 BIO_printf(bio_err, "options are\n"); 260 BIO_printf(bio_err, 261 "-c to output the digest with separating colons\n"); 262 BIO_printf(bio_err, 263 "-r to output the digest in coreutils format\n"); 264 BIO_printf(bio_err, "-d to output debug info\n"); 265 BIO_printf(bio_err, "-hex output as hex dump\n"); 266 BIO_printf(bio_err, "-binary output in binary form\n"); 267 BIO_printf(bio_err, "-hmac arg set the HMAC key to arg\n"); 268 BIO_printf(bio_err, "-non-fips-allow allow use of non FIPS digest\n"); 269 BIO_printf(bio_err, 270 "-sign file sign digest using private key in file\n"); 271 BIO_printf(bio_err, 272 "-verify file verify a signature using public key in file\n"); 273 BIO_printf(bio_err, 274 "-prverify file verify a signature using private key in file\n"); 275 BIO_printf(bio_err, 276 "-keyform arg key file format (PEM or ENGINE)\n"); 277 BIO_printf(bio_err, 278 "-out filename output to filename rather than stdout\n"); 279 BIO_printf(bio_err, "-signature file signature to verify\n"); 280 BIO_printf(bio_err, "-sigopt nm:v signature parameter\n"); 281 BIO_printf(bio_err, "-hmac key create hashed MAC with key\n"); 282 BIO_printf(bio_err, 283 "-mac algorithm create MAC (not neccessarily HMAC)\n"); 284 BIO_printf(bio_err, 285 "-macopt nm:v MAC algorithm parameters or key\n"); 286#ifndef OPENSSL_NO_ENGINE 287 BIO_printf(bio_err, 288 "-engine e use engine e, possibly a hardware device.\n"); 289#endif 290 291 EVP_MD_do_all_sorted(list_md_fn, bio_err); 292 goto end; 293 } 294#ifndef OPENSSL_NO_ENGINE 295 if (engine_impl) 296 impl = e; 297#endif 298 299 in = BIO_new(BIO_s_file()); 300 bmd = BIO_new(BIO_f_md()); 301 if ((in == NULL) || (bmd == NULL)) { 302 ERR_print_errors(bio_err); 303 goto end; 304 } 305 306 if (debug) { 307 BIO_set_callback(in, BIO_debug_callback); 308 /* needed for windows 3.1 */ 309 BIO_set_callback_arg(in, (char *)bio_err); 310 } 311 312 if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) { 313 BIO_printf(bio_err, "Error getting password\n"); 314 goto end; 315 } 316 317 if (out_bin == -1) { 318 if (keyfile) 319 out_bin = 1; 320 else 321 out_bin = 0; 322 } 323 324 if (randfile) 325 app_RAND_load_file(randfile, bio_err, 0); 326 327 if (outfile) { 328 if (out_bin) 329 out = BIO_new_file(outfile, "wb"); 330 else 331 out = BIO_new_file(outfile, "w"); 332 } else { 333 out = BIO_new_fp(stdout, BIO_NOCLOSE); 334#ifdef OPENSSL_SYS_VMS 335 { 336 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 337 out = BIO_push(tmpbio, out); 338 } 339#endif 340 } 341 342 if (!out) { 343 BIO_printf(bio_err, "Error opening output file %s\n", 344 outfile ? outfile : "(stdout)"); 345 ERR_print_errors(bio_err); 346 goto end; 347 } 348 if ((! !mac_name + ! !keyfile + ! !hmac_key) > 1) { 349 BIO_printf(bio_err, "MAC and Signing key cannot both be specified\n"); 350 goto end; 351 } 352 353 if (keyfile) { 354 if (want_pub) 355 sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL, 356 e, "key file"); 357 else 358 sigkey = load_key(bio_err, keyfile, keyform, 0, passin, 359 e, "key file"); 360 if (!sigkey) { 361 /* 362 * load_[pub]key() has already printed an appropriate message 363 */ 364 goto end; 365 } 366 } 367 368 if (mac_name) { 369 EVP_PKEY_CTX *mac_ctx = NULL; 370 int r = 0; 371 if (!init_gen_str(bio_err, &mac_ctx, mac_name, impl, 0)) 372 goto mac_end; 373 if (macopts) { 374 char *macopt; 375 for (i = 0; i < sk_OPENSSL_STRING_num(macopts); i++) { 376 macopt = sk_OPENSSL_STRING_value(macopts, i); 377 if (pkey_ctrl_string(mac_ctx, macopt) <= 0) { 378 BIO_printf(bio_err, 379 "MAC parameter error \"%s\"\n", macopt); 380 ERR_print_errors(bio_err); 381 goto mac_end; 382 } 383 } 384 } 385 if (EVP_PKEY_keygen(mac_ctx, &sigkey) <= 0) { 386 BIO_puts(bio_err, "Error generating key\n"); 387 ERR_print_errors(bio_err); 388 goto mac_end; 389 } 390 r = 1; 391 mac_end: 392 if (mac_ctx) 393 EVP_PKEY_CTX_free(mac_ctx); 394 if (r == 0) 395 goto end; 396 } 397 398 if (non_fips_allow) { 399 EVP_MD_CTX *md_ctx; 400 BIO_get_md_ctx(bmd, &md_ctx); 401 EVP_MD_CTX_set_flags(md_ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW); 402 } 403 404 if (hmac_key) { 405 sigkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, impl, 406 (unsigned char *)hmac_key, -1); 407 if (!sigkey) 408 goto end; 409 } 410 411 if (sigkey) { 412 EVP_MD_CTX *mctx = NULL; 413 EVP_PKEY_CTX *pctx = NULL; 414 int r; 415 if (!BIO_get_md_ctx(bmd, &mctx)) { 416 BIO_printf(bio_err, "Error getting context\n"); 417 ERR_print_errors(bio_err); 418 goto end; 419 } 420 if (do_verify) 421 r = EVP_DigestVerifyInit(mctx, &pctx, md, impl, sigkey); 422 else 423 r = EVP_DigestSignInit(mctx, &pctx, md, impl, sigkey); 424 if (!r) { 425 BIO_printf(bio_err, "Error setting context\n"); 426 ERR_print_errors(bio_err); 427 goto end; 428 } 429 if (sigopts) { 430 char *sigopt; 431 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) { 432 sigopt = sk_OPENSSL_STRING_value(sigopts, i); 433 if (pkey_ctrl_string(pctx, sigopt) <= 0) { 434 BIO_printf(bio_err, "parameter error \"%s\"\n", 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 EVP_MD_CTX *mctx = NULL; 444 if (!BIO_get_md_ctx(bmd, &mctx)) { 445 BIO_printf(bio_err, "Error getting context\n"); 446 ERR_print_errors(bio_err); 447 goto end; 448 } 449 if (md == NULL) 450 md = EVP_md5(); 451 if (!EVP_DigestInit_ex(mctx, md, impl)) { 452 BIO_printf(bio_err, "Error setting digest %s\n", pname); 453 ERR_print_errors(bio_err); 454 goto end; 455 } 456 } 457 458 if (sigfile && sigkey) { 459 BIO *sigbio; 460 sigbio = BIO_new_file(sigfile, "rb"); 461 siglen = EVP_PKEY_size(sigkey); 462 sigbuf = OPENSSL_malloc(siglen); 463 if (!sigbio) { 464 BIO_printf(bio_err, "Error opening signature file %s\n", sigfile); 465 ERR_print_errors(bio_err); 466 goto end; 467 } 468 if (!sigbuf) { 469 BIO_printf(bio_err, "Out of memory\n"); 470 ERR_print_errors(bio_err); 471 goto end; 472 } 473 siglen = BIO_read(sigbio, sigbuf, siglen); 474 BIO_free(sigbio); 475 if (siglen <= 0) { 476 BIO_printf(bio_err, "Error reading signature file %s\n", sigfile); 477 ERR_print_errors(bio_err); 478 goto end; 479 } 480 } 481 inp = BIO_push(bmd, in); 482 483 if (md == NULL) { 484 EVP_MD_CTX *tctx; 485 BIO_get_md_ctx(bmd, &tctx); 486 md = EVP_MD_CTX_md(tctx); 487 } 488 489 if (argc == 0) { 490 BIO_set_fp(in, stdin, BIO_NOCLOSE); 491 err = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf, 492 siglen, NULL, NULL, "stdin", bmd); 493 } else { 494 const char *md_name = NULL, *sig_name = NULL; 495 if (!out_bin) { 496 if (sigkey) { 497 const EVP_PKEY_ASN1_METHOD *ameth; 498 ameth = EVP_PKEY_get0_asn1(sigkey); 499 if (ameth) 500 EVP_PKEY_asn1_get0_info(NULL, NULL, 501 NULL, NULL, &sig_name, ameth); 502 } 503 if (md) 504 md_name = EVP_MD_name(md); 505 } 506 err = 0; 507 for (i = 0; i < argc; i++) { 508 int r; 509 if (BIO_read_filename(in, argv[i]) <= 0) { 510 perror(argv[i]); 511 err++; 512 continue; 513 } else 514 r = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf, 515 siglen, sig_name, md_name, argv[i], bmd); 516 if (r) 517 err = r; 518 (void)BIO_reset(bmd); 519 } 520 } 521 end: 522 if (buf != NULL) { 523 OPENSSL_cleanse(buf, BUFSIZE); 524 OPENSSL_free(buf); 525 } 526 if (in != NULL) 527 BIO_free(in); 528 if (passin) 529 OPENSSL_free(passin); 530 BIO_free_all(out); 531 EVP_PKEY_free(sigkey); 532 if (sigopts) 533 sk_OPENSSL_STRING_free(sigopts); 534 if (macopts) 535 sk_OPENSSL_STRING_free(macopts); 536 if (sigbuf) 537 OPENSSL_free(sigbuf); 538 if (bmd != NULL) 539 BIO_free(bmd); 540 release_engine(e); 541 apps_shutdown(); 542 OPENSSL_EXIT(err); 543} 544 545int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout, 546 EVP_PKEY *key, unsigned char *sigin, int siglen, 547 const char *sig_name, const char *md_name, 548 const char *file, BIO *bmd) 549{ 550 size_t len; 551 int i; 552 553 for (;;) { 554 i = BIO_read(bp, (char *)buf, BUFSIZE); 555 if (i < 0) { 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) 561 break; 562 } 563 if (sigin) { 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 BIO_printf(out, "Verification Failure\n"); 571 return 1; 572 } else { 573 BIO_printf(bio_err, "Error Verifying Data\n"); 574 ERR_print_errors(bio_err); 575 return 1; 576 } 577 return 0; 578 } 579 if (key) { 580 EVP_MD_CTX *ctx; 581 BIO_get_md_ctx(bp, &ctx); 582 len = BUFSIZE; 583 if (!EVP_DigestSignFinal(ctx, buf, &len)) { 584 BIO_printf(bio_err, "Error Signing Data\n"); 585 ERR_print_errors(bio_err); 586 return 1; 587 } 588 } else { 589 len = BIO_gets(bp, (char *)buf, BUFSIZE); 590 if ((int)len < 0) { 591 ERR_print_errors(bio_err); 592 return 1; 593 } 594 } 595 596 if (binout) 597 BIO_write(out, buf, len); 598 else if (sep == 2) { 599 for (i = 0; i < (int)len; i++) 600 BIO_printf(out, "%02x", buf[i]); 601 BIO_printf(out, " *%s\n", file); 602 } else { 603 if (sig_name) { 604 BIO_puts(out, sig_name); 605 if (md_name) 606 BIO_printf(out, "-%s", md_name); 607 BIO_printf(out, "(%s)= ", file); 608 } else if (md_name) 609 BIO_printf(out, "%s(%s)= ", md_name, file); 610 else 611 BIO_printf(out, "(%s)= ", file); 612 for (i = 0; i < (int)len; i++) { 613 if (sep && (i != 0)) 614 BIO_printf(out, ":"); 615 BIO_printf(out, "%02x", buf[i]); 616 } 617 BIO_printf(out, "\n"); 618 } 619 return 0; 620} 621