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 70 #undef BUFSIZE 71 #define BUFSIZE 1024*8 72 73 #undef PROG 74 #define PROG dgst_main 75 76 int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout, 77 EVP_PKEY *key, unsigned char *sigin, int siglen, const char *title, 78 const char *file); 79 80 int MAIN(int, char **); 81 82 int MAIN(int argc, char **argv) 83 { 84 ENGINE *e = NULL; 85 unsigned char *buf=NULL; 86 int i,err=0; 87 const EVP_MD *md=NULL,*m; 88 BIO *in=NULL,*inp; 89 BIO *bmd=NULL; 90 BIO *out = NULL; 91 const char *name; 92 #define PROG_NAME_SIZE 39 93 char pname[PROG_NAME_SIZE+1]; 94 int separator=0; 95 int debug=0; 96 int keyform=FORMAT_PEM; 97 const char *outfile = NULL, *keyfile = NULL; 98 const char *sigfile = NULL, *randfile = NULL; 99 int out_bin = -1, want_pub = 0, do_verify = 0; 100 EVP_PKEY *sigkey = NULL; 101 unsigned char *sigbuf = NULL; 102 int siglen = 0; 103 char *passargin = NULL, *passin = NULL; 104 #ifndef OPENSSL_NO_ENGINE 105 char *engine=NULL; 106 #endif 107 108 apps_startup(); 109 110 if ((buf=(unsigned char *)OPENSSL_malloc(BUFSIZE)) == NULL) 111 { 112 BIO_printf(bio_err,"out of memory\n"); 113 goto end; 114 } 115 if (bio_err == NULL) 116 if ((bio_err=BIO_new(BIO_s_file())) != NULL) 117 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 118 119 if (!load_config(bio_err, NULL)) 120 goto end; 121 122 /* first check the program name */ 123 program_name(argv[0],pname,sizeof pname); 124 125 md=EVP_get_digestbyname(pname); 126 127 argc--; 128 argv++; 129 while (argc > 0) 130 { 131 if ((*argv)[0] != '-') break; 132 if (strcmp(*argv,"-c") == 0) 133 separator=1; 134 else if (strcmp(*argv,"-rand") == 0) 135 { 136 if (--argc < 1) break; 137 randfile=*(++argv); 138 } 139 else if (strcmp(*argv,"-out") == 0) 140 { 141 if (--argc < 1) break; 142 outfile=*(++argv); 143 } 144 else if (strcmp(*argv,"-sign") == 0) 145 { 146 if (--argc < 1) break; 147 keyfile=*(++argv); 148 } 149 else if (!strcmp(*argv,"-passin")) 150 { 151 if (--argc < 1) 152 break; 153 passargin=*++argv; 154 } 155 else if (strcmp(*argv,"-verify") == 0) 156 { 157 if (--argc < 1) break; 158 keyfile=*(++argv); 159 want_pub = 1; 160 do_verify = 1; 161 } 162 else if (strcmp(*argv,"-prverify") == 0) 163 { 164 if (--argc < 1) break; 165 keyfile=*(++argv); 166 do_verify = 1; 167 } 168 else if (strcmp(*argv,"-signature") == 0) 169 { 170 if (--argc < 1) break; 171 sigfile=*(++argv); 172 } 173 else if (strcmp(*argv,"-keyform") == 0) 174 { 175 if (--argc < 1) break; 176 keyform=str2fmt(*(++argv)); 177 } 178 #ifndef OPENSSL_NO_ENGINE 179 else if (strcmp(*argv,"-engine") == 0) 180 { 181 if (--argc < 1) break; 182 engine= *(++argv); 183 } 184 #endif 185 else if (strcmp(*argv,"-hex") == 0) 186 out_bin = 0; 187 else if (strcmp(*argv,"-binary") == 0) 188 out_bin = 1; 189 else if (strcmp(*argv,"-d") == 0) 190 debug=1; 191 else if ((m=EVP_get_digestbyname(&((*argv)[1]))) != NULL) 192 md=m; 193 else 194 break; 195 argc--; 196 argv++; 197 } 198 199 if (md == NULL) 200 md=EVP_md5(); 201 202 if(do_verify && !sigfile) { 203 BIO_printf(bio_err, "No signature to verify: use the -signature option\n"); 204 err = 1; 205 goto end; 206 } 207 208 if ((argc > 0) && (argv[0][0] == '-')) /* bad option */ 209 { 210 BIO_printf(bio_err,"unknown option '%s'\n",*argv); 211 BIO_printf(bio_err,"options are\n"); 212 BIO_printf(bio_err,"-c to output the digest with separating colons\n"); 213 BIO_printf(bio_err,"-d to output debug info\n"); 214 BIO_printf(bio_err,"-hex output as hex dump\n"); 215 BIO_printf(bio_err,"-binary output in binary form\n"); 216 BIO_printf(bio_err,"-sign file sign digest using private key in file\n"); 217 BIO_printf(bio_err,"-verify file verify a signature using public key in file\n"); 218 BIO_printf(bio_err,"-prverify file verify a signature using private key in file\n"); 219 BIO_printf(bio_err,"-keyform arg key file format (PEM or ENGINE)\n"); 220 BIO_printf(bio_err,"-signature file signature to verify\n"); 221 BIO_printf(bio_err,"-binary output in binary form\n"); 222 #ifndef OPENSSL_NO_ENGINE 223 BIO_printf(bio_err,"-engine e use engine e, possibly a hardware device.\n"); 224 #endif 225 226 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm (default)\n", 227 LN_md5,LN_md5); 228 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", 229 LN_md4,LN_md4); 230 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", 231 LN_md2,LN_md2); 232 #ifndef OPENSSL_NO_SHA 233 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", 234 LN_sha1,LN_sha1); 235 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", 236 LN_sha,LN_sha); 237 #ifndef OPENSSL_NO_SHA256 238 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", 239 LN_sha256,LN_sha256); 240 #endif 241 #ifndef OPENSSL_NO_SHA512 242 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", 243 LN_sha512,LN_sha512); 244 #endif 245 #endif 246 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", 247 LN_mdc2,LN_mdc2); 248 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", 249 LN_ripemd160,LN_ripemd160); 250 err=1; 251 goto end; 252 } 253 254 #ifndef OPENSSL_NO_ENGINE 255 e = setup_engine(bio_err, engine, 0); 256 #endif 257 258 in=BIO_new(BIO_s_file()); 259 bmd=BIO_new(BIO_f_md()); 260 if (debug) 261 { 262 BIO_set_callback(in,BIO_debug_callback); 263 /* needed for windows 3.1 */ 264 BIO_set_callback_arg(in,bio_err); 265 } 266 267 if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) 268 { 269 BIO_printf(bio_err, "Error getting password\n"); 270 goto end; 271 } 272 273 if ((in == NULL) || (bmd == NULL)) 274 { 275 ERR_print_errors(bio_err); 276 goto end; 277 } 278 279 if(out_bin == -1) { 280 if(keyfile) out_bin = 1; 281 else out_bin = 0; 282 } 283 284 if(randfile) 285 app_RAND_load_file(randfile, bio_err, 0); 286 287 if(outfile) { 288 if(out_bin) 289 out = BIO_new_file(outfile, "wb"); 290 else out = BIO_new_file(outfile, "w"); 291 } else { 292 out = BIO_new_fp(stdout, BIO_NOCLOSE); 293 #ifdef OPENSSL_SYS_VMS 294 { 295 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 296 out = BIO_push(tmpbio, out); 297 } 298 #endif 299 } 300 301 if(!out) { 302 BIO_printf(bio_err, "Error opening output file %s\n", 303 outfile ? outfile : "(stdout)"); 304 ERR_print_errors(bio_err); 305 goto end; 306 } 307 308 if(keyfile) 309 { 310 if (want_pub) 311 sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL, 312 e, "key file"); 313 else 314 sigkey = load_key(bio_err, keyfile, keyform, 0, passin, 315 e, "key file"); 316 if (!sigkey) 317 { 318 /* load_[pub]key() has already printed an appropriate 319 message */ 320 goto end; 321 } 322 } 323 324 if(sigfile && sigkey) { 325 BIO *sigbio; 326 sigbio = BIO_new_file(sigfile, "rb"); 327 siglen = EVP_PKEY_size(sigkey); 328 sigbuf = OPENSSL_malloc(siglen); 329 if(!sigbio) { 330 BIO_printf(bio_err, "Error opening signature file %s\n", 331 sigfile); 332 ERR_print_errors(bio_err); 333 goto end; 334 } 335 siglen = BIO_read(sigbio, sigbuf, siglen); 336 BIO_free(sigbio); 337 if(siglen <= 0) { 338 BIO_printf(bio_err, "Error reading signature file %s\n", 339 sigfile); 340 ERR_print_errors(bio_err); 341 goto end; 342 } 343 } 344 345 346 347 /* we use md as a filter, reading from 'in' */ 348 if (!BIO_set_md(bmd,md)) 349 { 350 BIO_printf(bio_err, "Error setting digest %s\n", pname); 351 ERR_print_errors(bio_err); 352 goto end; 353 } 354 355 inp=BIO_push(bmd,in); 356 357 if (argc == 0) 358 { 359 BIO_set_fp(in,stdin,BIO_NOCLOSE); 360 err=do_fp(out, buf,inp,separator, out_bin, sigkey, sigbuf, 361 siglen,"","(stdin)"); 362 } 363 else 364 { 365 name=OBJ_nid2sn(md->type); 366 for (i=0; i<argc; i++) 367 { 368 char *tmp,*tofree=NULL; 369 int r; 370 371 if (BIO_read_filename(in,argv[i]) <= 0) 372 { 373 perror(argv[i]); 374 err++; 375 continue; 376 } 377 if(!out_bin) 378 { 379 size_t len = strlen(name)+strlen(argv[i])+5; 380 tmp=tofree=OPENSSL_malloc(len); 381 BIO_snprintf(tmp,len,"%s(%s)= ",name,argv[i]); 382 } 383 else 384 tmp=""; 385 r=do_fp(out,buf,inp,separator,out_bin,sigkey,sigbuf, 386 siglen,tmp,argv[i]); 387 if(r) 388 err=r; 389 if(tofree) 390 OPENSSL_free(tofree); 391 (void)BIO_reset(bmd); 392 } 393 } 394 end: 395 if (buf != NULL) 396 { 397 OPENSSL_cleanse(buf,BUFSIZE); 398 OPENSSL_free(buf); 399 } 400 if (in != NULL) BIO_free(in); 401 if (passin) 402 OPENSSL_free(passin); 403 BIO_free_all(out); 404 EVP_PKEY_free(sigkey); 405 if(sigbuf) OPENSSL_free(sigbuf); 406 if (bmd != NULL) BIO_free(bmd); 407 apps_shutdown(); 408 OPENSSL_EXIT(err); 409 } 410 411 int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout, 412 EVP_PKEY *key, unsigned char *sigin, int siglen, const char *title, 413 const char *file) 414 { 415 int len; 416 int i; 417 418 for (;;) 419 { 420 i=BIO_read(bp,(char *)buf,BUFSIZE); 421 if(i < 0) 422 { 423 BIO_printf(bio_err, "Read Error in %s\n",file); 424 ERR_print_errors(bio_err); 425 return 1; 426 } 427 if (i == 0) break; 428 } 429 if(sigin) 430 { 431 EVP_MD_CTX *ctx; 432 BIO_get_md_ctx(bp, &ctx); 433 i = EVP_VerifyFinal(ctx, sigin, (unsigned int)siglen, key); 434 if(i > 0) 435 BIO_printf(out, "Verified OK\n"); 436 else if(i == 0) 437 { 438 BIO_printf(out, "Verification Failure\n"); 439 return 1; 440 } 441 else 442 { 443 BIO_printf(bio_err, "Error Verifying Data\n"); 444 ERR_print_errors(bio_err); 445 return 1; 446 } 447 return 0; 448 } 449 if(key) 450 { 451 EVP_MD_CTX *ctx; 452 BIO_get_md_ctx(bp, &ctx); 453 if(!EVP_SignFinal(ctx, buf, (unsigned int *)&len, key)) 454 { 455 BIO_printf(bio_err, "Error Signing Data\n"); 456 ERR_print_errors(bio_err); 457 return 1; 458 } 459 } 460 else 461 len=BIO_gets(bp,(char *)buf,BUFSIZE); 462 463 if(binout) BIO_write(out, buf, len); 464 else 465 { 466 BIO_write(out,title,strlen(title)); 467 for (i=0; i<len; i++) 468 { 469 if (sep && (i != 0)) 470 BIO_printf(out, ":"); 471 BIO_printf(out, "%02x",buf[i]); 472 } 473 BIO_printf(out, "\n"); 474 } 475 return 0; 476 } 477 478