dgst.c revision 279264
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; 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 int non_fips_allow = 0; 131 STACK_OF(OPENSSL_STRING) *sigopts = NULL, *macopts = NULL; 132 133 apps_startup(); 134 135 if ((buf=(unsigned char *)OPENSSL_malloc(BUFSIZE)) == NULL) 136 { 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 { 156 if ((*argv)[0] != '-') 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 { 163 if (--argc < 1) break; 164 randfile=*(++argv); 165 } 166 else if (strcmp(*argv,"-out") == 0) 167 { 168 if (--argc < 1) break; 169 outfile=*(++argv); 170 } 171 else if (strcmp(*argv,"-sign") == 0) 172 { 173 if (--argc < 1) break; 174 keyfile=*(++argv); 175 } 176 else if (!strcmp(*argv,"-passin")) 177 { 178 if (--argc < 1) 179 break; 180 passargin=*++argv; 181 } 182 else if (strcmp(*argv,"-verify") == 0) 183 { 184 if (--argc < 1) break; 185 keyfile=*(++argv); 186 want_pub = 1; 187 do_verify = 1; 188 } 189 else if (strcmp(*argv,"-prverify") == 0) 190 { 191 if (--argc < 1) break; 192 keyfile=*(++argv); 193 do_verify = 1; 194 } 195 else if (strcmp(*argv,"-signature") == 0) 196 { 197 if (--argc < 1) break; 198 sigfile=*(++argv); 199 } 200 else if (strcmp(*argv,"-keyform") == 0) 201 { 202 if (--argc < 1) break; 203 keyform=str2fmt(*(++argv)); 204 } 205#ifndef OPENSSL_NO_ENGINE 206 else if (strcmp(*argv,"-engine") == 0) 207 { 208 if (--argc < 1) break; 209 engine= *(++argv); 210 e = setup_engine(bio_err, engine, 0); 211 } 212#endif 213 else if (strcmp(*argv,"-hex") == 0) 214 out_bin = 0; 215 else if (strcmp(*argv,"-binary") == 0) 216 out_bin = 1; 217 else if (strcmp(*argv,"-d") == 0) 218 debug=1; 219 else if (!strcmp(*argv,"-fips-fingerprint")) 220 hmac_key = "etaonrishdlcupfm"; 221 else if (strcmp(*argv,"-non-fips-allow") == 0) 222 non_fips_allow=1; 223 else if (!strcmp(*argv,"-hmac")) 224 { 225 if (--argc < 1) 226 break; 227 hmac_key=*++argv; 228 } 229 else if (!strcmp(*argv,"-mac")) 230 { 231 if (--argc < 1) 232 break; 233 mac_name=*++argv; 234 } 235 else if (strcmp(*argv,"-sigopt") == 0) 236 { 237 if (--argc < 1) 238 break; 239 if (!sigopts) 240 sigopts = sk_OPENSSL_STRING_new_null(); 241 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, *(++argv))) 242 break; 243 } 244 else if (strcmp(*argv,"-macopt") == 0) 245 { 246 if (--argc < 1) 247 break; 248 if (!macopts) 249 macopts = sk_OPENSSL_STRING_new_null(); 250 if (!macopts || !sk_OPENSSL_STRING_push(macopts, *(++argv))) 251 break; 252 } 253 else if ((m=EVP_get_digestbyname(&((*argv)[1]))) != NULL) 254 md=m; 255 else 256 break; 257 argc--; 258 argv++; 259 } 260 261 262 if(do_verify && !sigfile) { 263 BIO_printf(bio_err, "No signature to verify: use the -signature option\n"); 264 goto end; 265 } 266 267 if ((argc > 0) && (argv[0][0] == '-')) /* bad option */ 268 { 269 BIO_printf(bio_err,"unknown option '%s'\n",*argv); 270 BIO_printf(bio_err,"options are\n"); 271 BIO_printf(bio_err,"-c to output the digest with separating colons\n"); 272 BIO_printf(bio_err,"-r to output the digest in coreutils format\n"); 273 BIO_printf(bio_err,"-d to output debug info\n"); 274 BIO_printf(bio_err,"-hex output as hex dump\n"); 275 BIO_printf(bio_err,"-binary output in binary form\n"); 276 BIO_printf(bio_err,"-hmac arg set the HMAC key to arg\n"); 277 BIO_printf(bio_err,"-non-fips-allow allow use of non FIPS digest\n"); 278 BIO_printf(bio_err,"-sign file sign digest using private key in file\n"); 279 BIO_printf(bio_err,"-verify file verify a signature using public key in file\n"); 280 BIO_printf(bio_err,"-prverify file verify a signature using private key in file\n"); 281 BIO_printf(bio_err,"-keyform arg key file format (PEM or ENGINE)\n"); 282 BIO_printf(bio_err,"-out filename output to filename rather than stdout\n"); 283 BIO_printf(bio_err,"-signature file signature to verify\n"); 284 BIO_printf(bio_err,"-sigopt nm:v signature parameter\n"); 285 BIO_printf(bio_err,"-hmac key create hashed MAC with key\n"); 286 BIO_printf(bio_err,"-mac algorithm create MAC (not neccessarily HMAC)\n"); 287 BIO_printf(bio_err,"-macopt nm:v MAC algorithm parameters or key\n"); 288#ifndef OPENSSL_NO_ENGINE 289 BIO_printf(bio_err,"-engine e use engine e, possibly a hardware device.\n"); 290#endif 291 292 EVP_MD_do_all_sorted(list_md_fn, bio_err); 293 goto end; 294 } 295 296 in=BIO_new(BIO_s_file()); 297 bmd=BIO_new(BIO_f_md()); 298 if (debug) 299 { 300 BIO_set_callback(in,BIO_debug_callback); 301 /* needed for windows 3.1 */ 302 BIO_set_callback_arg(in,(char *)bio_err); 303 } 304 305 if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) 306 { 307 BIO_printf(bio_err, "Error getting password\n"); 308 goto end; 309 } 310 311 if ((in == NULL) || (bmd == NULL)) 312 { 313 ERR_print_errors(bio_err); 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 out = BIO_new_file(outfile, "w"); 331 } else { 332 out = BIO_new_fp(stdout, BIO_NOCLOSE); 333#ifdef OPENSSL_SYS_VMS 334 { 335 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 336 out = BIO_push(tmpbio, out); 337 } 338#endif 339 } 340 341 if(!out) { 342 BIO_printf(bio_err, "Error opening output file %s\n", 343 outfile ? outfile : "(stdout)"); 344 ERR_print_errors(bio_err); 345 goto end; 346 } 347 if ((!!mac_name + !!keyfile + !!hmac_key) > 1) 348 { 349 BIO_printf(bio_err, "MAC and Signing key cannot both be specified\n"); 350 goto end; 351 } 352 353 if(keyfile) 354 { 355 if (want_pub) 356 sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL, 357 e, "key file"); 358 else 359 sigkey = load_key(bio_err, keyfile, keyform, 0, passin, 360 e, "key file"); 361 if (!sigkey) 362 { 363 /* load_[pub]key() has already printed an appropriate 364 message */ 365 goto end; 366 } 367 } 368 369 if (mac_name) 370 { 371 EVP_PKEY_CTX *mac_ctx = NULL; 372 int r = 0; 373 if (!init_gen_str(bio_err, &mac_ctx, mac_name,e, 0)) 374 goto mac_end; 375 if (macopts) 376 { 377 char *macopt; 378 for (i = 0; i < sk_OPENSSL_STRING_num(macopts); i++) 379 { 380 macopt = sk_OPENSSL_STRING_value(macopts, i); 381 if (pkey_ctrl_string(mac_ctx, macopt) <= 0) 382 { 383 BIO_printf(bio_err, 384 "MAC parameter error \"%s\"\n", 385 macopt); 386 ERR_print_errors(bio_err); 387 goto mac_end; 388 } 389 } 390 } 391 if (EVP_PKEY_keygen(mac_ctx, &sigkey) <= 0) 392 { 393 BIO_puts(bio_err, "Error generating key\n"); 394 ERR_print_errors(bio_err); 395 goto mac_end; 396 } 397 r = 1; 398 mac_end: 399 if (mac_ctx) 400 EVP_PKEY_CTX_free(mac_ctx); 401 if (r == 0) 402 goto end; 403 } 404 405 if (non_fips_allow) 406 { 407 EVP_MD_CTX *md_ctx; 408 BIO_get_md_ctx(bmd,&md_ctx); 409 EVP_MD_CTX_set_flags(md_ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW); 410 } 411 412 if (hmac_key) 413 { 414 sigkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, e, 415 (unsigned char *)hmac_key, -1); 416 if (!sigkey) 417 goto end; 418 } 419 420 if (sigkey) 421 { 422 EVP_MD_CTX *mctx = NULL; 423 EVP_PKEY_CTX *pctx = NULL; 424 int r; 425 if (!BIO_get_md_ctx(bmd, &mctx)) 426 { 427 BIO_printf(bio_err, "Error getting context\n"); 428 ERR_print_errors(bio_err); 429 goto end; 430 } 431 if (do_verify) 432 r = EVP_DigestVerifyInit(mctx, &pctx, md, NULL, sigkey); 433 else 434 r = EVP_DigestSignInit(mctx, &pctx, md, NULL, sigkey); 435 if (!r) 436 { 437 BIO_printf(bio_err, "Error setting context\n"); 438 ERR_print_errors(bio_err); 439 goto end; 440 } 441 if (sigopts) 442 { 443 char *sigopt; 444 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) 445 { 446 sigopt = sk_OPENSSL_STRING_value(sigopts, i); 447 if (pkey_ctrl_string(pctx, sigopt) <= 0) 448 { 449 BIO_printf(bio_err, 450 "parameter error \"%s\"\n", 451 sigopt); 452 ERR_print_errors(bio_err); 453 goto end; 454 } 455 } 456 } 457 } 458 /* we use md as a filter, reading from 'in' */ 459 else 460 { 461 if (md == NULL) 462 md = EVP_md5(); 463 if (!BIO_set_md(bmd,md)) 464 { 465 BIO_printf(bio_err, "Error setting digest %s\n", pname); 466 ERR_print_errors(bio_err); 467 goto end; 468 } 469 } 470 471 if(sigfile && sigkey) { 472 BIO *sigbio; 473 sigbio = BIO_new_file(sigfile, "rb"); 474 siglen = EVP_PKEY_size(sigkey); 475 sigbuf = OPENSSL_malloc(siglen); 476 if(!sigbio) { 477 BIO_printf(bio_err, "Error opening signature file %s\n", 478 sigfile); 479 ERR_print_errors(bio_err); 480 goto end; 481 } 482 siglen = BIO_read(sigbio, sigbuf, siglen); 483 BIO_free(sigbio); 484 if(siglen <= 0) { 485 BIO_printf(bio_err, "Error reading signature file %s\n", 486 sigfile); 487 ERR_print_errors(bio_err); 488 goto end; 489 } 490 } 491 inp=BIO_push(bmd,in); 492 493 if (md == NULL) 494 { 495 EVP_MD_CTX *tctx; 496 BIO_get_md_ctx(bmd, &tctx); 497 md = EVP_MD_CTX_md(tctx); 498 } 499 500 if (argc == 0) 501 { 502 BIO_set_fp(in,stdin,BIO_NOCLOSE); 503 err=do_fp(out, buf,inp,separator, out_bin, sigkey, sigbuf, 504 siglen,NULL,NULL,"stdin",bmd); 505 } 506 else 507 { 508 const char *md_name = NULL, *sig_name = NULL; 509 if(!out_bin) 510 { 511 if (sigkey) 512 { 513 const EVP_PKEY_ASN1_METHOD *ameth; 514 ameth = EVP_PKEY_get0_asn1(sigkey); 515 if (ameth) 516 EVP_PKEY_asn1_get0_info(NULL, NULL, 517 NULL, NULL, &sig_name, ameth); 518 } 519 md_name = EVP_MD_name(md); 520 } 521 err = 0; 522 for (i=0; i<argc; i++) 523 { 524 int r; 525 if (BIO_read_filename(in,argv[i]) <= 0) 526 { 527 perror(argv[i]); 528 err++; 529 continue; 530 } 531 else 532 r=do_fp(out,buf,inp,separator,out_bin,sigkey,sigbuf, 533 siglen,sig_name,md_name, argv[i],bmd); 534 if(r) 535 err=r; 536 (void)BIO_reset(bmd); 537 } 538 } 539end: 540 if (buf != NULL) 541 { 542 OPENSSL_cleanse(buf,BUFSIZE); 543 OPENSSL_free(buf); 544 } 545 if (in != NULL) BIO_free(in); 546 if (passin) 547 OPENSSL_free(passin); 548 BIO_free_all(out); 549 EVP_PKEY_free(sigkey); 550 if (sigopts) 551 sk_OPENSSL_STRING_free(sigopts); 552 if (macopts) 553 sk_OPENSSL_STRING_free(macopts); 554 if(sigbuf) OPENSSL_free(sigbuf); 555 if (bmd != NULL) BIO_free(bmd); 556 apps_shutdown(); 557 OPENSSL_EXIT(err); 558 } 559 560int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout, 561 EVP_PKEY *key, unsigned char *sigin, int siglen, 562 const char *sig_name, const char *md_name, 563 const char *file,BIO *bmd) 564 { 565 size_t len; 566 int i; 567 568 for (;;) 569 { 570 i=BIO_read(bp,(char *)buf,BUFSIZE); 571 if(i < 0) 572 { 573 BIO_printf(bio_err, "Read Error in %s\n",file); 574 ERR_print_errors(bio_err); 575 return 1; 576 } 577 if (i == 0) break; 578 } 579 if(sigin) 580 { 581 EVP_MD_CTX *ctx; 582 BIO_get_md_ctx(bp, &ctx); 583 i = EVP_DigestVerifyFinal(ctx, sigin, (unsigned int)siglen); 584 if(i > 0) 585 BIO_printf(out, "Verified OK\n"); 586 else if(i == 0) 587 { 588 BIO_printf(out, "Verification Failure\n"); 589 return 1; 590 } 591 else 592 { 593 BIO_printf(bio_err, "Error Verifying Data\n"); 594 ERR_print_errors(bio_err); 595 return 1; 596 } 597 return 0; 598 } 599 if(key) 600 { 601 EVP_MD_CTX *ctx; 602 BIO_get_md_ctx(bp, &ctx); 603 len = BUFSIZE; 604 if(!EVP_DigestSignFinal(ctx, buf, &len)) 605 { 606 BIO_printf(bio_err, "Error Signing Data\n"); 607 ERR_print_errors(bio_err); 608 return 1; 609 } 610 } 611 else 612 { 613 len=BIO_gets(bp,(char *)buf,BUFSIZE); 614 if ((int)len <0) 615 { 616 ERR_print_errors(bio_err); 617 return 1; 618 } 619 } 620 621 if(binout) BIO_write(out, buf, len); 622 else if (sep == 2) 623 { 624 for (i=0; i<(int)len; i++) 625 BIO_printf(out, "%02x",buf[i]); 626 BIO_printf(out, " *%s\n", file); 627 } 628 else 629 { 630 if (sig_name) 631 BIO_printf(out, "%s-%s(%s)= ", sig_name, md_name, file); 632 else if (md_name) 633 BIO_printf(out, "%s(%s)= ", md_name, file); 634 else 635 BIO_printf(out, "(%s)= ", file); 636 for (i=0; i<(int)len; i++) 637 { 638 if (sep && (i != 0)) 639 BIO_printf(out, ":"); 640 BIO_printf(out, "%02x",buf[i]); 641 } 642 BIO_printf(out, "\n"); 643 } 644 return 0; 645 } 646 647