crypto/openssl-0.9/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);
  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=0;
  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         char *passargin = NULL, *passin = NULL;
 105 #ifndef OPENSSL_NO_ENGINE
 106         char *engine=NULL;
 107 #endif
 108         char *hmac_key=NULL;
 109
 110         apps_startup();
 111
 112         if ((buf=(unsigned char *)OPENSSL_malloc(BUFSIZE)) == NULL)
 113                 {
 114                 BIO_printf(bio_err,"out of memory\n");
 115                 goto end;
 116                 }
 117         if (bio_err == NULL)
 118                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
 119                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
 120
 121         if (!load_config(bio_err, NULL))
 122                 goto end;
 123
 124         /* first check the program name */
 125         program_name(argv[0],pname,sizeof pname);
 126
 127         md=EVP_get_digestbyname(pname);
 128
 129         argc--;
 130         argv++;
 131         while (argc > 0)
 132                 {
 133                 if ((*argv)[0] != '-') break;
 134                 if (strcmp(*argv,"-c") == 0)
 135                         separator=1;
 136                 else if (strcmp(*argv,"-rand") == 0)
 137                         {
 138                         if (--argc < 1) break;
 139                         randfile=*(++argv);
 140                         }
 141                 else if (strcmp(*argv,"-out") == 0)
 142                         {
 143                         if (--argc < 1) break;
 144                         outfile=*(++argv);
 145                         }
 146                 else if (strcmp(*argv,"-sign") == 0)
 147                         {
 148                         if (--argc < 1) break;
 149                         keyfile=*(++argv);
 150                         }
 151                 else if (!strcmp(*argv,"-passin"))
 152                         {
 153                         if (--argc < 1)
 154                                 break;
 155                         passargin=*++argv;
 156                         }
 157                 else if (strcmp(*argv,"-verify") == 0)
 158                         {
 159                         if (--argc < 1) break;
 160                         keyfile=*(++argv);
 161                         want_pub = 1;
 162                         do_verify = 1;
 163                         }
 164                 else if (strcmp(*argv,"-prverify") == 0)
 165                         {
 166                         if (--argc < 1) break;
 167                         keyfile=*(++argv);
 168                         do_verify = 1;
 169                         }
 170                 else if (strcmp(*argv,"-signature") == 0)
 171                         {
 172                         if (--argc < 1) break;
 173                         sigfile=*(++argv);
 174                         }
 175                 else if (strcmp(*argv,"-keyform") == 0)
 176                         {
 177                         if (--argc < 1) break;
 178                         keyform=str2fmt(*(++argv));
 179                         }
 180 #ifndef OPENSSL_NO_ENGINE
 181                 else if (strcmp(*argv,"-engine") == 0)
 182                         {
 183                         if (--argc < 1) break;
 184                         engine= *(++argv);
 185                         }
 186 #endif
 187                 else if (strcmp(*argv,"-hex") == 0)
 188                         out_bin = 0;
 189                 else if (strcmp(*argv,"-binary") == 0)
 190                         out_bin = 1;
 191                 else if (strcmp(*argv,"-d") == 0)
 192                         debug=1;
 193                 else if (!strcmp(*argv,"-hmac"))
 194                         {
 195                         if (--argc < 1)
 196                                 break;
 197                         hmac_key=*++argv;
 198                         }
 199                 else if ((m=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
 200                         md=m;
 201                 else
 202                         break;
 203                 argc--;
 204                 argv++;
 205                 }
 206
 207         if (md == NULL)
 208                 md=EVP_md5();
 209
 210         if(do_verify && !sigfile) {
 211                 BIO_printf(bio_err, "No signature to verify: use the -signature option\n");
 212                 err = 1;
 213                 goto end;
 214         }
 215
 216         if ((argc > 0) && (argv[0][0] == '-')) /* bad option */
 217                 {
 218                 BIO_printf(bio_err,"unknown option '%s'\n",*argv);
 219                 BIO_printf(bio_err,"options are\n");
 220                 BIO_printf(bio_err,"-c              to output the digest with separating colons\n");
 221                 BIO_printf(bio_err,"-d              to output debug info\n");
 222                 BIO_printf(bio_err,"-hex            output as hex dump\n");
 223                 BIO_printf(bio_err,"-binary         output in binary form\n");
 224                 BIO_printf(bio_err,"-sign   file    sign digest using private key in file\n");
 225                 BIO_printf(bio_err,"-verify file    verify a signature using public key in file\n");
 226                 BIO_printf(bio_err,"-prverify file  verify a signature using private key in file\n");
 227                 BIO_printf(bio_err,"-keyform arg    key file format (PEM or ENGINE)\n");
 228                 BIO_printf(bio_err,"-signature file signature to verify\n");
 229                 BIO_printf(bio_err,"-binary         output in binary form\n");
 230 #ifndef OPENSSL_NO_ENGINE
 231                 BIO_printf(bio_err,"-engine e       use engine e, possibly a hardware device.\n");
 232 #endif
 233
 234                 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm (default)\n",
 235                         LN_md5,LN_md5);
 236                 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
 237                         LN_md4,LN_md4);
 238                 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
 239                         LN_md2,LN_md2);
 240 #ifndef OPENSSL_NO_SHA
 241                 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
 242                         LN_sha1,LN_sha1);
 243                 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
 244                         LN_sha,LN_sha);
 245 #ifndef OPENSSL_NO_SHA256
 246                 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
 247                         LN_sha224,LN_sha224);
 248                 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
 249                         LN_sha256,LN_sha256);
 250 #endif
 251 #ifndef OPENSSL_NO_SHA512
 252                 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
 253                         LN_sha384,LN_sha384);
 254                 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
 255                         LN_sha512,LN_sha512);
 256 #endif
 257 #endif
 258                 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
 259                         LN_mdc2,LN_mdc2);
 260                 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
 261                         LN_ripemd160,LN_ripemd160);
 262                 err=1;
 263                 goto end;
 264                 }
 265
 266 #ifndef OPENSSL_NO_ENGINE
 267         e = setup_engine(bio_err, engine, 0);
 268 #endif
 269
 270         in=BIO_new(BIO_s_file());
 271         bmd=BIO_new(BIO_f_md());
 272         if (debug)
 273                 {
 274                 BIO_set_callback(in,BIO_debug_callback);
 275                 /* needed for windows 3.1 */
 276                 BIO_set_callback_arg(in,(char *)bio_err);
 277                 }
 278
 279         if(!app_passwd(bio_err, passargin, NULL, &passin, NULL))
 280                 {
 281                 BIO_printf(bio_err, "Error getting password\n");
 282                 goto end;
 283                 }
 284
 285         if ((in == NULL) || (bmd == NULL))
 286                 {
 287                 ERR_print_errors(bio_err);
 288                 goto end;
 289                 }
 290
 291         if(out_bin == -1) {
 292                 if(keyfile) out_bin = 1;
 293                 else out_bin = 0;
 294         }
 295
 296         if(randfile)
 297                 app_RAND_load_file(randfile, bio_err, 0);
 298
 299         if(outfile) {
 300                 if(out_bin)
 301                         out = BIO_new_file(outfile, "wb");
 302                 else    out = BIO_new_file(outfile, "w");
 303         } else {
 304                 out = BIO_new_fp(stdout, BIO_NOCLOSE);
 305 #ifdef OPENSSL_SYS_VMS
 306                 {
 307                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 308                 out = BIO_push(tmpbio, out);
 309                 }
 310 #endif
 311         }
 312
 313         if(!out) {
 314                 BIO_printf(bio_err, "Error opening output file %s\n",
 315                                         outfile ? outfile : "(stdout)");
 316                 ERR_print_errors(bio_err);
 317                 goto end;
 318         }
 319
 320         if(keyfile)
 321                 {
 322                 if (want_pub)
 323                         sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL,
 324                                 e, "key file");
 325                 else
 326                         sigkey = load_key(bio_err, keyfile, keyform, 0, passin,
 327                                 e, "key file");
 328                 if (!sigkey)
 329                         {
 330                         /* load_[pub]key() has already printed an appropriate
 331                            message */
 332                         goto end;
 333                         }
 334                 }
 335
 336         if(sigfile && sigkey) {
 337                 BIO *sigbio;
 338                 sigbio = BIO_new_file(sigfile, "rb");
 339                 siglen = EVP_PKEY_size(sigkey);
 340                 sigbuf = OPENSSL_malloc(siglen);
 341                 if(!sigbio) {
 342                         BIO_printf(bio_err, "Error opening signature file %s\n",
 343                                                                 sigfile);
 344                         ERR_print_errors(bio_err);
 345                         goto end;
 346                 }
 347                 siglen = BIO_read(sigbio, sigbuf, siglen);
 348                 BIO_free(sigbio);
 349                 if(siglen <= 0) {
 350                         BIO_printf(bio_err, "Error reading signature file %s\n",
 351                                                                 sigfile);
 352                         ERR_print_errors(bio_err);
 353                         goto end;
 354                 }
 355         }
 356
 357
 358
 359         /* we use md as a filter, reading from 'in' */
 360         if (!BIO_set_md(bmd,md))
 361                 {
 362                 BIO_printf(bio_err, "Error setting digest %s\n", pname);
 363                 ERR_print_errors(bio_err);
 364                 goto end;
 365                 }
 366
 367         inp=BIO_push(bmd,in);
 368
 369         if (argc == 0)
 370                 {
 371                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
 372                 err=do_fp(out, buf,inp,separator, out_bin, sigkey, sigbuf,
 373                           siglen,"","(stdin)",bmd,hmac_key);
 374                 }
 375         else
 376                 {
 377                 name=OBJ_nid2sn(md->type);
 378                 for (i=0; i<argc; i++)
 379                         {
 380                         char *tmp,*tofree=NULL;
 381                         int r;
 382
 383                         if (BIO_read_filename(in,argv[i]) <= 0)
 384                                 {
 385                                 perror(argv[i]);
 386                                 err++;
 387                                 continue;
 388                                 }
 389                         if(!out_bin)
 390                                 {
 391                                 size_t len = strlen(name)+strlen(argv[i])+(hmac_key ? 5 : 0)+5;
 392                                 tmp=tofree=OPENSSL_malloc(len);
 393                                 BIO_snprintf(tmp,len,"%s%s(%s)= ",
 394                                                          hmac_key ? "HMAC-" : "",name,argv[i]);
 395                                 }
 396                         else
 397                                 tmp="";
 398                         r=do_fp(out,buf,inp,separator,out_bin,sigkey,sigbuf,
 399                                 siglen,tmp,argv[i],bmd,hmac_key);
 400                         if(r)
 401                             err=r;
 402                         if(tofree)
 403                                 OPENSSL_free(tofree);
 404                         (void)BIO_reset(bmd);
 405                         }
 406                 }
 407 end:
 408         if (buf != NULL)
 409                 {
 410                 OPENSSL_cleanse(buf,BUFSIZE);
 411                 OPENSSL_free(buf);
 412                 }
 413         if (in != NULL) BIO_free(in);
 414         if (passin)
 415                 OPENSSL_free(passin);
 416         BIO_free_all(out);
 417         EVP_PKEY_free(sigkey);
 418         if(sigbuf) OPENSSL_free(sigbuf);
 419         if (bmd != NULL) BIO_free(bmd);
 420         apps_shutdown();
 421         OPENSSL_EXIT(err);
 422         }
 423
 424 int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout,
 425           EVP_PKEY *key, unsigned char *sigin, int siglen, const char *title,
 426           const char *file,BIO *bmd,const char *hmac_key)
 427         {
 428         unsigned int len;
 429         int i;
 430         EVP_MD_CTX *md_ctx;
 431         HMAC_CTX hmac_ctx;
 432
 433         if (hmac_key)
 434                 {
 435                 EVP_MD *md;
 436
 437                 BIO_get_md(bmd,&md);
 438                 HMAC_CTX_init(&hmac_ctx);
 439                 HMAC_Init_ex(&hmac_ctx,hmac_key,strlen(hmac_key),md, NULL);
 440                 BIO_get_md_ctx(bmd,&md_ctx);
 441                 BIO_set_md_ctx(bmd,&hmac_ctx.md_ctx);
 442                 }
 443         for (;;)
 444                 {
 445                 i=BIO_read(bp,(char *)buf,BUFSIZE);
 446                 if(i < 0)
 447                         {
 448                         BIO_printf(bio_err, "Read Error in %s\n",file);
 449                         ERR_print_errors(bio_err);
 450                         return 1;
 451                         }
 452                 if (i == 0) break;
 453                 }
 454         if(sigin)
 455                 {
 456                 EVP_MD_CTX *ctx;
 457                 BIO_get_md_ctx(bp, &ctx);
 458                 i = EVP_VerifyFinal(ctx, sigin, (unsigned int)siglen, key);
 459                 if(i > 0)
 460                         BIO_printf(out, "Verified OK\n");
 461                 else if(i == 0)
 462                         {
 463                         BIO_printf(out, "Verification Failure\n");
 464                         return 1;
 465                         }
 466                 else
 467                         {
 468                         BIO_printf(bio_err, "Error Verifying Data\n");
 469                         ERR_print_errors(bio_err);
 470                         return 1;
 471                         }
 472                 return 0;
 473                 }
 474         if(key)
 475                 {
 476                 EVP_MD_CTX *ctx;
 477                 BIO_get_md_ctx(bp, &ctx);
 478                 if(!EVP_SignFinal(ctx, buf, (unsigned int *)&len, key))
 479                         {
 480                         BIO_printf(bio_err, "Error Signing Data\n");
 481                         ERR_print_errors(bio_err);
 482                         return 1;
 483                         }
 484                 }
 485         else if(hmac_key)
 486                 {
 487                 HMAC_Final(&hmac_ctx,buf,&len);
 488                 HMAC_CTX_cleanup(&hmac_ctx);
 489                 }
 490         else
 491                 len=BIO_gets(bp,(char *)buf,BUFSIZE);
 492
 493         if(binout) BIO_write(out, buf, len);
 494         else
 495                 {
 496                 BIO_write(out,title,strlen(title));
 497                 for (i=0; i<(int)len; i++)
 498                         {
 499                         if (sep && (i != 0))
 500                                 BIO_printf(out, ":");
 501                         BIO_printf(out, "%02x",buf[i]);
 502                         }
 503                 BIO_printf(out, "\n");
 504                 }
 505         if (hmac_key)
 506                 {
 507                 BIO_set_md_ctx(bmd,md_ctx);
 508                 }
 509         return 0;
 510         }
 511