dgst.c revision 194206
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, const char *title, 79 const char *file,BIO *bmd,const char *hmac_key, int non_fips_allow); 80 81int MAIN(int, char **); 82 83int MAIN(int argc, char **argv) 84 { 85 ENGINE *e = NULL; 86 unsigned char *buf=NULL; 87 int i,err=1; 88 const EVP_MD *md=NULL,*m; 89 BIO *in=NULL,*inp; 90 BIO *bmd=NULL; 91 BIO *out = NULL; 92 const char *name; 93#define PROG_NAME_SIZE 39 94 char pname[PROG_NAME_SIZE+1]; 95 int separator=0; 96 int debug=0; 97 int keyform=FORMAT_PEM; 98 const char *outfile = NULL, *keyfile = NULL; 99 const char *sigfile = NULL, *randfile = NULL; 100 int out_bin = -1, want_pub = 0, do_verify = 0; 101 EVP_PKEY *sigkey = NULL; 102 unsigned char *sigbuf = NULL; 103 int siglen = 0; 104 unsigned int sig_flags = 0; 105 char *passargin = NULL, *passin = NULL; 106#ifndef OPENSSL_NO_ENGINE 107 char *engine=NULL; 108#endif 109 char *hmac_key=NULL; 110 int non_fips_allow = 0; 111 112 apps_startup(); 113ERR_load_crypto_strings(); 114 if ((buf=(unsigned char *)OPENSSL_malloc(BUFSIZE)) == NULL) 115 { 116 BIO_printf(bio_err,"out of memory\n"); 117 goto end; 118 } 119 if (bio_err == NULL) 120 if ((bio_err=BIO_new(BIO_s_file())) != NULL) 121 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 122 123 if (!load_config(bio_err, NULL)) 124 goto end; 125 126 /* first check the program name */ 127 program_name(argv[0],pname,sizeof pname); 128 129 md=EVP_get_digestbyname(pname); 130 131 argc--; 132 argv++; 133 while (argc > 0) 134 { 135 if ((*argv)[0] != '-') break; 136 if (strcmp(*argv,"-c") == 0) 137 separator=1; 138 else if (strcmp(*argv,"-rand") == 0) 139 { 140 if (--argc < 1) break; 141 randfile=*(++argv); 142 } 143 else if (strcmp(*argv,"-out") == 0) 144 { 145 if (--argc < 1) break; 146 outfile=*(++argv); 147 } 148 else if (strcmp(*argv,"-sign") == 0) 149 { 150 if (--argc < 1) break; 151 keyfile=*(++argv); 152 } 153 else if (!strcmp(*argv,"-passin")) 154 { 155 if (--argc < 1) 156 break; 157 passargin=*++argv; 158 } 159 else if (strcmp(*argv,"-verify") == 0) 160 { 161 if (--argc < 1) break; 162 keyfile=*(++argv); 163 want_pub = 1; 164 do_verify = 1; 165 } 166 else if (strcmp(*argv,"-prverify") == 0) 167 { 168 if (--argc < 1) break; 169 keyfile=*(++argv); 170 do_verify = 1; 171 } 172 else if (strcmp(*argv,"-x931") == 0) 173 sig_flags = EVP_MD_CTX_FLAG_PAD_X931; 174 else if (strcmp(*argv,"-pss_saltlen") == 0) 175 { 176 int saltlen; 177 if (--argc < 1) break; 178 saltlen=atoi(*(++argv)); 179 if (saltlen == -1) 180 sig_flags = EVP_MD_CTX_FLAG_PSS_MREC; 181 else if (saltlen == -2) 182 sig_flags = EVP_MD_CTX_FLAG_PSS_MDLEN; 183 else if (saltlen < -2 || saltlen >= 0xFFFE) 184 { 185 BIO_printf(bio_err, "Invalid PSS salt length %d\n", saltlen); 186 goto end; 187 } 188 else 189 sig_flags = saltlen; 190 sig_flags <<= 16; 191 sig_flags |= EVP_MD_CTX_FLAG_PAD_PSS; 192 } 193 else if (strcmp(*argv,"-signature") == 0) 194 { 195 if (--argc < 1) break; 196 sigfile=*(++argv); 197 } 198 else if (strcmp(*argv,"-keyform") == 0) 199 { 200 if (--argc < 1) break; 201 keyform=str2fmt(*(++argv)); 202 } 203#ifndef OPENSSL_NO_ENGINE 204 else if (strcmp(*argv,"-engine") == 0) 205 { 206 if (--argc < 1) break; 207 engine= *(++argv); 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,"-non-fips-allow") == 0) 217 non_fips_allow=1; 218 else if (!strcmp(*argv,"-fips-fingerprint")) 219 hmac_key = "etaonrishdlcupfm"; 220 else if (!strcmp(*argv,"-hmac")) 221 { 222 if (--argc < 1) 223 break; 224 hmac_key=*++argv; 225 } 226 else if ((m=EVP_get_digestbyname(&((*argv)[1]))) != NULL) 227 md=m; 228 else 229 break; 230 argc--; 231 argv++; 232 } 233 234 if (md == NULL) 235 md=EVP_md5(); 236 237 if(do_verify && !sigfile) { 238 BIO_printf(bio_err, "No signature to verify: use the -signature option\n"); 239 err = 1; 240 goto end; 241 } 242 243 if ((argc > 0) && (argv[0][0] == '-')) /* bad option */ 244 { 245 BIO_printf(bio_err,"unknown option '%s'\n",*argv); 246 BIO_printf(bio_err,"options are\n"); 247 BIO_printf(bio_err,"-c to output the digest with separating colons\n"); 248 BIO_printf(bio_err,"-d to output debug info\n"); 249 BIO_printf(bio_err,"-hex output as hex dump\n"); 250 BIO_printf(bio_err,"-binary output in binary form\n"); 251 BIO_printf(bio_err,"-sign file sign digest using private key in file\n"); 252 BIO_printf(bio_err,"-verify file verify a signature using public key in file\n"); 253 BIO_printf(bio_err,"-prverify file verify a signature using private key in file\n"); 254 BIO_printf(bio_err,"-keyform arg key file format (PEM or ENGINE)\n"); 255 BIO_printf(bio_err,"-signature file signature to verify\n"); 256 BIO_printf(bio_err,"-binary output in binary form\n"); 257 BIO_printf(bio_err,"-hmac key create hashed MAC with key\n"); 258#ifndef OPENSSL_NO_ENGINE 259 BIO_printf(bio_err,"-engine e use engine e, possibly a hardware device.\n"); 260#endif 261 262 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm (default)\n", 263 LN_md5,LN_md5); 264 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n", 265 LN_md4,LN_md4); 266 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n", 267 LN_md2,LN_md2); 268#ifndef OPENSSL_NO_SHA 269 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n", 270 LN_sha1,LN_sha1); 271 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n", 272 LN_sha,LN_sha); 273#ifndef OPENSSL_NO_SHA256 274 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n", 275 LN_sha224,LN_sha224); 276 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n", 277 LN_sha256,LN_sha256); 278#endif 279#ifndef OPENSSL_NO_SHA512 280 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n", 281 LN_sha384,LN_sha384); 282 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n", 283 LN_sha512,LN_sha512); 284#endif 285#endif 286 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n", 287 LN_mdc2,LN_mdc2); 288 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n", 289 LN_ripemd160,LN_ripemd160); 290 err=1; 291 goto end; 292 } 293 294#ifndef OPENSSL_NO_ENGINE 295 e = setup_engine(bio_err, engine, 0); 296#endif 297 298 in=BIO_new(BIO_s_file()); 299 bmd=BIO_new(BIO_f_md()); 300 if (debug) 301 { 302 BIO_set_callback(in,BIO_debug_callback); 303 /* needed for windows 3.1 */ 304 BIO_set_callback_arg(in,(char *)bio_err); 305 } 306 307 if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) 308 { 309 BIO_printf(bio_err, "Error getting password\n"); 310 goto end; 311 } 312 313 if ((in == NULL) || (bmd == NULL)) 314 { 315 ERR_print_errors(bio_err); 316 goto end; 317 } 318 319 if(out_bin == -1) { 320 if(keyfile) out_bin = 1; 321 else 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 } 347 348 if(keyfile) 349 { 350 if (want_pub) 351 sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL, 352 e, "key file"); 353 else 354 sigkey = load_key(bio_err, keyfile, keyform, 0, passin, 355 e, "key file"); 356 if (!sigkey) 357 { 358 /* load_[pub]key() has already printed an appropriate 359 message */ 360 goto end; 361 } 362 } 363 364 if(sigfile && sigkey) { 365 BIO *sigbio; 366 sigbio = BIO_new_file(sigfile, "rb"); 367 siglen = EVP_PKEY_size(sigkey); 368 sigbuf = OPENSSL_malloc(siglen); 369 if(!sigbio) { 370 BIO_printf(bio_err, "Error opening signature file %s\n", 371 sigfile); 372 ERR_print_errors(bio_err); 373 goto end; 374 } 375 siglen = BIO_read(sigbio, sigbuf, siglen); 376 BIO_free(sigbio); 377 if(siglen <= 0) { 378 BIO_printf(bio_err, "Error reading signature file %s\n", 379 sigfile); 380 ERR_print_errors(bio_err); 381 goto end; 382 } 383 } 384 385 if (non_fips_allow) 386 { 387 EVP_MD_CTX *md_ctx; 388 BIO_get_md_ctx(bmd,&md_ctx); 389 EVP_MD_CTX_set_flags(md_ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW); 390 } 391 392 if (sig_flags) 393 { 394 EVP_MD_CTX *md_ctx; 395 BIO_get_md_ctx(bmd,&md_ctx); 396 EVP_MD_CTX_set_flags(md_ctx, sig_flags); 397 } 398 399 /* we use md as a filter, reading from 'in' */ 400 if (!BIO_set_md(bmd,md)) 401 { 402 BIO_printf(bio_err, "Error setting digest %s\n", pname); 403 ERR_print_errors(bio_err); 404 goto end; 405 } 406 407 inp=BIO_push(bmd,in); 408 409 if (argc == 0) 410 { 411 BIO_set_fp(in,stdin,BIO_NOCLOSE); 412 err=do_fp(out, buf,inp,separator, out_bin, sigkey, sigbuf, 413 siglen,"","(stdin)",bmd,hmac_key,non_fips_allow); 414 } 415 else 416 { 417 name=OBJ_nid2sn(md->type); 418 err = 0; 419 for (i=0; i<argc; i++) 420 { 421 char *tmp,*tofree=NULL; 422 int r; 423 424 if (BIO_read_filename(in,argv[i]) <= 0) 425 { 426 perror(argv[i]); 427 err++; 428 continue; 429 } 430 if(!out_bin) 431 { 432 size_t len = strlen(name)+strlen(argv[i])+(hmac_key ? 5 : 0)+5; 433 tmp=tofree=OPENSSL_malloc(len); 434 BIO_snprintf(tmp,len,"%s%s(%s)= ", 435 hmac_key ? "HMAC-" : "",name,argv[i]); 436 } 437 else 438 tmp=""; 439 r=do_fp(out,buf,inp,separator,out_bin,sigkey,sigbuf, 440 siglen,tmp,argv[i],bmd,hmac_key,non_fips_allow); 441 if(r) 442 err=r; 443 if(tofree) 444 OPENSSL_free(tofree); 445 (void)BIO_reset(bmd); 446 } 447 } 448end: 449 if (buf != NULL) 450 { 451 OPENSSL_cleanse(buf,BUFSIZE); 452 OPENSSL_free(buf); 453 } 454 if (in != NULL) BIO_free(in); 455 if (passin) 456 OPENSSL_free(passin); 457 BIO_free_all(out); 458 EVP_PKEY_free(sigkey); 459 if(sigbuf) OPENSSL_free(sigbuf); 460 if (bmd != NULL) BIO_free(bmd); 461 apps_shutdown(); 462 OPENSSL_EXIT(err); 463 } 464 465int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout, 466 EVP_PKEY *key, unsigned char *sigin, int siglen, const char *title, 467 const char *file,BIO *bmd,const char *hmac_key,int non_fips_allow) 468 { 469 unsigned int len; 470 int i; 471 EVP_MD_CTX *md_ctx; 472 HMAC_CTX hmac_ctx; 473 474 if (hmac_key) 475 { 476 EVP_MD *md; 477 478 BIO_get_md(bmd,&md); 479 HMAC_CTX_init(&hmac_ctx); 480 HMAC_Init_ex(&hmac_ctx,hmac_key,strlen(hmac_key),md, NULL); 481 BIO_get_md_ctx(bmd,&md_ctx); 482 BIO_set_md_ctx(bmd,&hmac_ctx.md_ctx); 483 } 484 for (;;) 485 { 486 i=BIO_read(bp,(char *)buf,BUFSIZE); 487 if(i < 0) 488 { 489 BIO_printf(bio_err, "Read Error in %s\n",file); 490 ERR_print_errors(bio_err); 491 return 1; 492 } 493 if (i == 0) break; 494 } 495 if(sigin) 496 { 497 EVP_MD_CTX *ctx; 498 BIO_get_md_ctx(bp, &ctx); 499 i = EVP_VerifyFinal(ctx, sigin, (unsigned int)siglen, key); 500 if(i > 0) 501 BIO_printf(out, "Verified OK\n"); 502 else if(i == 0) 503 { 504 BIO_printf(out, "Verification Failure\n"); 505 return 1; 506 } 507 else 508 { 509 BIO_printf(bio_err, "Error Verifying Data\n"); 510 ERR_print_errors(bio_err); 511 return 1; 512 } 513 return 0; 514 } 515 if(key) 516 { 517 EVP_MD_CTX *ctx; 518 BIO_get_md_ctx(bp, &ctx); 519 if(!EVP_SignFinal(ctx, buf, (unsigned int *)&len, key)) 520 { 521 BIO_printf(bio_err, "Error Signing Data\n"); 522 ERR_print_errors(bio_err); 523 return 1; 524 } 525 } 526 else if(hmac_key) 527 { 528 HMAC_Final(&hmac_ctx,buf,&len); 529 HMAC_CTX_cleanup(&hmac_ctx); 530 } 531 else 532 len=BIO_gets(bp,(char *)buf,BUFSIZE); 533 534 if(binout) BIO_write(out, buf, len); 535 else 536 { 537 BIO_write(out,title,strlen(title)); 538 for (i=0; i<(int)len; i++) 539 { 540 if (sep && (i != 0)) 541 BIO_printf(out, ":"); 542 BIO_printf(out, "%02x",buf[i]); 543 } 544 BIO_printf(out, "\n"); 545 } 546 if (hmac_key) 547 { 548 BIO_set_md_ctx(bmd,md_ctx); 549 } 550 return 0; 551 } 552 553