dgst.c revision 127128
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 76int 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 80int MAIN(int, char **); 81 82int 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#ifndef OPENSSL_NO_ENGINE 104 char *engine=NULL; 105#endif 106 107 apps_startup(); 108 109 if ((buf=(unsigned char *)OPENSSL_malloc(BUFSIZE)) == NULL) 110 { 111 BIO_printf(bio_err,"out of memory\n"); 112 goto end; 113 } 114 if (bio_err == NULL) 115 if ((bio_err=BIO_new(BIO_s_file())) != NULL) 116 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 117 118 if (!load_config(bio_err, NULL)) 119 goto end; 120 121 /* first check the program name */ 122 program_name(argv[0],pname,sizeof pname); 123 124 md=EVP_get_digestbyname(pname); 125 126 argc--; 127 argv++; 128 while (argc > 0) 129 { 130 if ((*argv)[0] != '-') break; 131 if (strcmp(*argv,"-c") == 0) 132 separator=1; 133 else if (strcmp(*argv,"-rand") == 0) 134 { 135 if (--argc < 1) break; 136 randfile=*(++argv); 137 } 138 else if (strcmp(*argv,"-out") == 0) 139 { 140 if (--argc < 1) break; 141 outfile=*(++argv); 142 } 143 else if (strcmp(*argv,"-sign") == 0) 144 { 145 if (--argc < 1) break; 146 keyfile=*(++argv); 147 } 148 else if (strcmp(*argv,"-verify") == 0) 149 { 150 if (--argc < 1) break; 151 keyfile=*(++argv); 152 want_pub = 1; 153 do_verify = 1; 154 } 155 else if (strcmp(*argv,"-prverify") == 0) 156 { 157 if (--argc < 1) break; 158 keyfile=*(++argv); 159 do_verify = 1; 160 } 161 else if (strcmp(*argv,"-signature") == 0) 162 { 163 if (--argc < 1) break; 164 sigfile=*(++argv); 165 } 166 else if (strcmp(*argv,"-keyform") == 0) 167 { 168 if (--argc < 1) break; 169 keyform=str2fmt(*(++argv)); 170 } 171#ifndef OPENSSL_NO_ENGINE 172 else if (strcmp(*argv,"-engine") == 0) 173 { 174 if (--argc < 1) break; 175 engine= *(++argv); 176 } 177#endif 178 else if (strcmp(*argv,"-hex") == 0) 179 out_bin = 0; 180 else if (strcmp(*argv,"-binary") == 0) 181 out_bin = 1; 182 else if (strcmp(*argv,"-d") == 0) 183 debug=1; 184 else if ((m=EVP_get_digestbyname(&((*argv)[1]))) != NULL) 185 md=m; 186 else 187 break; 188 argc--; 189 argv++; 190 } 191 192 if (md == NULL) 193 md=EVP_md5(); 194 195 if(do_verify && !sigfile) { 196 BIO_printf(bio_err, "No signature to verify: use the -signature option\n"); 197 err = 1; 198 goto end; 199 } 200 201 if ((argc > 0) && (argv[0][0] == '-')) /* bad option */ 202 { 203 BIO_printf(bio_err,"unknown option '%s'\n",*argv); 204 BIO_printf(bio_err,"options are\n"); 205 BIO_printf(bio_err,"-c to output the digest with separating colons\n"); 206 BIO_printf(bio_err,"-d to output debug info\n"); 207 BIO_printf(bio_err,"-hex output as hex dump\n"); 208 BIO_printf(bio_err,"-binary output in binary form\n"); 209 BIO_printf(bio_err,"-sign file sign digest using private key in file\n"); 210 BIO_printf(bio_err,"-verify file verify a signature using public key in file\n"); 211 BIO_printf(bio_err,"-prverify file verify a signature using private key in file\n"); 212 BIO_printf(bio_err,"-keyform arg key file format (PEM or ENGINE)\n"); 213 BIO_printf(bio_err,"-signature file signature to verify\n"); 214 BIO_printf(bio_err,"-binary output in binary form\n"); 215#ifndef OPENSSL_NO_ENGINE 216 BIO_printf(bio_err,"-engine e use engine e, possibly a hardware device.\n"); 217#endif 218 219 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm (default)\n", 220 LN_md5,LN_md5); 221 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", 222 LN_md4,LN_md4); 223 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", 224 LN_md2,LN_md2); 225 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", 226 LN_sha1,LN_sha1); 227 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", 228 LN_sha,LN_sha); 229 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", 230 LN_mdc2,LN_mdc2); 231 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n", 232 LN_ripemd160,LN_ripemd160); 233 err=1; 234 goto end; 235 } 236 237#ifndef OPENSSL_NO_ENGINE 238 e = setup_engine(bio_err, engine, 0); 239#endif 240 241 in=BIO_new(BIO_s_file()); 242 bmd=BIO_new(BIO_f_md()); 243 if (debug) 244 { 245 BIO_set_callback(in,BIO_debug_callback); 246 /* needed for windows 3.1 */ 247 BIO_set_callback_arg(in,bio_err); 248 } 249 250 if ((in == NULL) || (bmd == NULL)) 251 { 252 ERR_print_errors(bio_err); 253 goto end; 254 } 255 256 if(out_bin == -1) { 257 if(keyfile) out_bin = 1; 258 else out_bin = 0; 259 } 260 261 if(randfile) 262 app_RAND_load_file(randfile, bio_err, 0); 263 264 if(outfile) { 265 if(out_bin) 266 out = BIO_new_file(outfile, "wb"); 267 else out = BIO_new_file(outfile, "w"); 268 } else { 269 out = BIO_new_fp(stdout, BIO_NOCLOSE); 270#ifdef OPENSSL_SYS_VMS 271 { 272 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 273 out = BIO_push(tmpbio, out); 274 } 275#endif 276 } 277 278 if(!out) { 279 BIO_printf(bio_err, "Error opening output file %s\n", 280 outfile ? outfile : "(stdout)"); 281 ERR_print_errors(bio_err); 282 goto end; 283 } 284 285 if(keyfile) 286 { 287 if (want_pub) 288 sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL, 289 e, "key file"); 290 else 291 sigkey = load_key(bio_err, keyfile, keyform, 0, NULL, 292 e, "key file"); 293 if (!sigkey) 294 { 295 /* load_[pub]key() has already printed an appropriate 296 message */ 297 goto end; 298 } 299 } 300 301 if(sigfile && sigkey) { 302 BIO *sigbio; 303 sigbio = BIO_new_file(sigfile, "rb"); 304 siglen = EVP_PKEY_size(sigkey); 305 sigbuf = OPENSSL_malloc(siglen); 306 if(!sigbio) { 307 BIO_printf(bio_err, "Error opening signature file %s\n", 308 sigfile); 309 ERR_print_errors(bio_err); 310 goto end; 311 } 312 siglen = BIO_read(sigbio, sigbuf, siglen); 313 BIO_free(sigbio); 314 if(siglen <= 0) { 315 BIO_printf(bio_err, "Error reading signature file %s\n", 316 sigfile); 317 ERR_print_errors(bio_err); 318 goto end; 319 } 320 } 321 322 323 324 /* we use md as a filter, reading from 'in' */ 325 BIO_set_md(bmd,md); 326 inp=BIO_push(bmd,in); 327 328 if (argc == 0) 329 { 330 BIO_set_fp(in,stdin,BIO_NOCLOSE); 331 err=do_fp(out, buf,inp,separator, out_bin, sigkey, sigbuf, 332 siglen,"","(stdin)"); 333 } 334 else 335 { 336 name=OBJ_nid2sn(md->type); 337 for (i=0; i<argc; i++) 338 { 339 char *tmp,*tofree=NULL; 340 int r; 341 342 if (BIO_read_filename(in,argv[i]) <= 0) 343 { 344 perror(argv[i]); 345 err++; 346 continue; 347 } 348 if(!out_bin) 349 { 350 size_t len = strlen(name)+strlen(argv[i])+5; 351 tmp=tofree=OPENSSL_malloc(len); 352 BIO_snprintf(tmp,len,"%s(%s)= ",name,argv[i]); 353 } 354 else 355 tmp=""; 356 r=do_fp(out,buf,inp,separator,out_bin,sigkey,sigbuf, 357 siglen,tmp,argv[i]); 358 if(r) 359 err=r; 360 if(tofree) 361 OPENSSL_free(tofree); 362 (void)BIO_reset(bmd); 363 } 364 } 365end: 366 if (buf != NULL) 367 { 368 OPENSSL_cleanse(buf,BUFSIZE); 369 OPENSSL_free(buf); 370 } 371 if (in != NULL) BIO_free(in); 372 BIO_free_all(out); 373 EVP_PKEY_free(sigkey); 374 if(sigbuf) OPENSSL_free(sigbuf); 375 if (bmd != NULL) BIO_free(bmd); 376 apps_shutdown(); 377 OPENSSL_EXIT(err); 378 } 379 380int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout, 381 EVP_PKEY *key, unsigned char *sigin, int siglen, const char *title, 382 const char *file) 383 { 384 int len; 385 int i; 386 387 for (;;) 388 { 389 i=BIO_read(bp,(char *)buf,BUFSIZE); 390 if(i < 0) 391 { 392 BIO_printf(bio_err, "Read Error in %s\n",file); 393 ERR_print_errors(bio_err); 394 return 1; 395 } 396 if (i == 0) break; 397 } 398 if(sigin) 399 { 400 EVP_MD_CTX *ctx; 401 BIO_get_md_ctx(bp, &ctx); 402 i = EVP_VerifyFinal(ctx, sigin, (unsigned int)siglen, key); 403 if(i > 0) 404 BIO_printf(out, "Verified OK\n"); 405 else if(i == 0) 406 { 407 BIO_printf(out, "Verification Failure\n"); 408 return 1; 409 } 410 else 411 { 412 BIO_printf(bio_err, "Error Verifying Data\n"); 413 ERR_print_errors(bio_err); 414 return 1; 415 } 416 return 0; 417 } 418 if(key) 419 { 420 EVP_MD_CTX *ctx; 421 BIO_get_md_ctx(bp, &ctx); 422 if(!EVP_SignFinal(ctx, buf, (unsigned int *)&len, key)) 423 { 424 BIO_printf(bio_err, "Error Signing Data\n"); 425 ERR_print_errors(bio_err); 426 return 1; 427 } 428 } 429 else 430 len=BIO_gets(bp,(char *)buf,BUFSIZE); 431 432 if(binout) BIO_write(out, buf, len); 433 else 434 { 435 BIO_write(out,title,strlen(title)); 436 for (i=0; i<len; i++) 437 { 438 if (sep && (i != 0)) 439 BIO_printf(out, ":"); 440 BIO_printf(out, "%02x",buf[i]); 441 } 442 BIO_printf(out, "\n"); 443 } 444 return 0; 445 } 446 447