apps/dgst.c

   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, const char *title,
  79           const char *file,BIO *bmd,const char *hmac_key, int non_fips_allow);
  80
  81 int MAIN(int, char **);
  82
  83 int 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();
 113 ERR_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                 }
 448 end:
 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
 465 int 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