dgst.c 11.5 KB
Newer Older
1
/* apps/dgst.c */
2
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "apps.h"
63 64 65 66 67 68
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
69 70 71 72 73 74 75

#undef BUFSIZE
#define BUFSIZE	1024*8

#undef PROG
#define PROG	dgst_main

B
Ben Laurie 已提交
76 77 78
int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout,
	  EVP_PKEY *key, unsigned char *sigin, int siglen, const char *title,
	  const char *file);
79 80 81

int MAIN(int, char **);

U
Ulf Möller 已提交
82
int MAIN(int argc, char **argv)
83
	{
84
	ENGINE *e = NULL;
85 86
	unsigned char *buf=NULL;
	int i,err=0;
B
Ben Laurie 已提交
87
	const EVP_MD *md=NULL,*m;
88 89
	BIO *in=NULL,*inp;
	BIO *bmd=NULL;
90
	BIO *out = NULL;
B
Ben Laurie 已提交
91
	const char *name;
92 93
#define PROG_NAME_SIZE  39
	char pname[PROG_NAME_SIZE+1];
94 95
	int separator=0;
	int debug=0;
96
	int keyform=FORMAT_PEM;
97 98
	const char *outfile = NULL, *keyfile = NULL;
	const char *sigfile = NULL, *randfile = NULL;
99
	int out_bin = -1, want_pub = 0, do_verify = 0;
100 101
	EVP_PKEY *sigkey = NULL;
	unsigned char *sigbuf = NULL;
102
	int siglen = 0;
103
	char *engine=NULL;
104 105 106

	apps_startup();

107
	if ((buf=(unsigned char *)OPENSSL_malloc(BUFSIZE)) == NULL)
108 109 110 111 112 113
		{
		BIO_printf(bio_err,"out of memory\n");
		goto end;
		}
	if (bio_err == NULL)
		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
114
			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
115

D
Dr. Stephen Henson 已提交
116 117 118
	if (!load_config(bio_err, NULL))
		goto end;

119
	/* first check the program name */
120
	program_name(argv[0],pname,PROG_NAME_SIZE);
121 122 123 124 125

	md=EVP_get_digestbyname(pname);

	argc--;
	argv++;
B
Bodo Möller 已提交
126
	while (argc > 0)
127 128 129 130
		{
		if ((*argv)[0] != '-') break;
		if (strcmp(*argv,"-c") == 0)
			separator=1;
131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163
		else if (strcmp(*argv,"-rand") == 0)
			{
			if (--argc < 1) break;
			randfile=*(++argv);
			}
		else if (strcmp(*argv,"-out") == 0)
			{
			if (--argc < 1) break;
			outfile=*(++argv);
			}
		else if (strcmp(*argv,"-sign") == 0)
			{
			if (--argc < 1) break;
			keyfile=*(++argv);
			}
		else if (strcmp(*argv,"-verify") == 0)
			{
			if (--argc < 1) break;
			keyfile=*(++argv);
			want_pub = 1;
			do_verify = 1;
			}
		else if (strcmp(*argv,"-prverify") == 0)
			{
			if (--argc < 1) break;
			keyfile=*(++argv);
			do_verify = 1;
			}
		else if (strcmp(*argv,"-signature") == 0)
			{
			if (--argc < 1) break;
			sigfile=*(++argv);
			}
164 165 166 167 168
		else if (strcmp(*argv,"-keyform") == 0)
			{
			if (--argc < 1) break;
			keyform=str2fmt(*(++argv));
			}
169 170 171 172 173
		else if (strcmp(*argv,"-engine") == 0)
			{
			if (--argc < 1) break;
			engine= *(++argv);
			}
174 175 176 177
		else if (strcmp(*argv,"-hex") == 0)
			out_bin = 0;
		else if (strcmp(*argv,"-binary") == 0)
			out_bin = 1;
178 179 180 181 182 183 184 185 186 187 188 189 190
		else if (strcmp(*argv,"-d") == 0)
			debug=1;
		else if ((m=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
			md=m;
		else
			break;
		argc--;
		argv++;
		}

	if (md == NULL)
		md=EVP_md5();

191 192 193 194 195 196
	if(do_verify && !sigfile) {
		BIO_printf(bio_err, "No signature to verify: use the -signature option\n");
		err = 1; 
		goto end;
	}

197 198 199 200
	if ((argc > 0) && (argv[0][0] == '-')) /* bad option */
		{
		BIO_printf(bio_err,"unknown option '%s'\n",*argv);
		BIO_printf(bio_err,"options are\n");
201 202 203 204 205 206 207
		BIO_printf(bio_err,"-c              to output the digest with separating colons\n");
		BIO_printf(bio_err,"-d              to output debug info\n");
		BIO_printf(bio_err,"-hex            output as hex dump\n");
		BIO_printf(bio_err,"-binary         output in binary form\n");
		BIO_printf(bio_err,"-sign   file    sign digest using private key in file\n");
		BIO_printf(bio_err,"-verify file    verify a signature using public key in file\n");
		BIO_printf(bio_err,"-prverify file  verify a signature using private key in file\n");
208
		BIO_printf(bio_err,"-keyform arg    key file format (PEM or ENGINE)\n");
209 210
		BIO_printf(bio_err,"-signature file signature to verify\n");
		BIO_printf(bio_err,"-binary         output in binary form\n");
211
		BIO_printf(bio_err,"-engine e       use engine e, possibly a hardware device.\n");
212

213
		BIO_printf(bio_err,"-%3s to use the %s message digest algorithm (default)\n",
214
			LN_md5,LN_md5);
215 216
		BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
			LN_md4,LN_md4);
217
		BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
218
			LN_md2,LN_md2);
219
		BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
220
			LN_sha1,LN_sha1);
221
		BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
222
			LN_sha,LN_sha);
223
		BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
224
			LN_mdc2,LN_mdc2);
225 226
		BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
			LN_ripemd160,LN_ripemd160);
227 228 229
		err=1;
		goto end;
		}
230

231
        e = setup_engine(bio_err, engine, 0);
232

233 234 235 236 237 238 239 240 241 242 243 244 245 246 247
	in=BIO_new(BIO_s_file());
	bmd=BIO_new(BIO_f_md());
	if (debug)
		{
		BIO_set_callback(in,BIO_debug_callback);
		/* needed for windows 3.1 */
		BIO_set_callback_arg(in,bio_err);
		}

	if ((in == NULL) || (bmd == NULL))
		{
		ERR_print_errors(bio_err);
		goto end;
		}

248 249 250 251 252 253 254 255 256 257 258 259
	if(out_bin == -1) {
		if(keyfile) out_bin = 1;
		else out_bin = 0;
	}

	if(randfile)
		app_RAND_load_file(randfile, bio_err, 0);

	if(outfile) {
		if(out_bin)
			out = BIO_new_file(outfile, "wb");
		else    out = BIO_new_file(outfile, "w");
260 261
	} else {
		out = BIO_new_fp(stdout, BIO_NOCLOSE);
262
#ifdef OPENSSL_SYS_VMS
263 264 265 266 267 268
		{
		BIO *tmpbio = BIO_new(BIO_f_linebuffer());
		out = BIO_push(tmpbio, out);
		}
#endif
	}
269 270 271 272 273 274 275 276

	if(!out) {
		BIO_printf(bio_err, "Error opening output file %s\n", 
					outfile ? outfile : "(stdout)");
		ERR_print_errors(bio_err);
		goto end;
	}

277 278
	if(keyfile)
		{
279 280 281
		if (want_pub)
			sigkey = load_pubkey(bio_err, keyfile, keyform, NULL,
				e, "key file");
282
		else
283 284 285
			sigkey = load_key(bio_err, keyfile, keyform, NULL,
				e, "key file");
		if (!sigkey)
286
			{
287 288
			/* load_[pub]key() has already printed an appropriate
			   message */
289
			goto end;
290
			}
291 292 293 294 295 296 297 298 299 300 301 302 303 304 305
		}

	if(sigfile && sigkey) {
		BIO *sigbio;
		sigbio = BIO_new_file(sigfile, "rb");
		siglen = EVP_PKEY_size(sigkey);
		sigbuf = OPENSSL_malloc(siglen);
		if(!sigbio) {
			BIO_printf(bio_err, "Error opening signature file %s\n",
								sigfile);
			ERR_print_errors(bio_err);
			goto end;
		}
		siglen = BIO_read(sigbio, sigbuf, siglen);
		BIO_free(sigbio);
306
		if(siglen <= 0) {
307 308 309 310 311 312 313 314 315
			BIO_printf(bio_err, "Error reading signature file %s\n",
								sigfile);
			ERR_print_errors(bio_err);
			goto end;
		}
	}
		


316 317 318 319 320 321 322
	/* we use md as a filter, reading from 'in' */
	BIO_set_md(bmd,md);
	inp=BIO_push(bmd,in);

	if (argc == 0)
		{
		BIO_set_fp(in,stdin,BIO_NOCLOSE);
B
Ben Laurie 已提交
323 324
		err=do_fp(out, buf,inp,separator, out_bin, sigkey, sigbuf,
			  siglen,"","(stdin)");
325 326 327 328 329 330
		}
	else
		{
		name=OBJ_nid2sn(md->type);
		for (i=0; i<argc; i++)
			{
B
Ben Laurie 已提交
331 332 333
			char *tmp,*tofree=NULL;
			int r;

334 335 336 337 338 339
			if (BIO_read_filename(in,argv[i]) <= 0)
				{
				perror(argv[i]);
				err++;
				continue;
				}
B
Ben Laurie 已提交
340 341 342 343 344 345 346 347 348 349 350 351 352
			if(!out_bin)
				{
				tmp=tofree=OPENSSL_malloc(strlen(name)+strlen(argv[i])+5);
				sprintf(tmp,"%s(%s)= ",name,argv[i]);
				}
			else
				tmp="";
			r=do_fp(out,buf,inp,separator,out_bin,sigkey,sigbuf,
				siglen,tmp,argv[i]);
			if(r)
			    err=r;
			if(tofree)
				OPENSSL_free(tofree);
B
Bodo Möller 已提交
353
			(void)BIO_reset(bmd);
354 355 356 357 358 359
			}
		}
end:
	if (buf != NULL)
		{
		memset(buf,0,BUFSIZE);
360
		OPENSSL_free(buf);
361 362
		}
	if (in != NULL) BIO_free(in);
363
	BIO_free_all(out);
364 365
	EVP_PKEY_free(sigkey);
	if(sigbuf) OPENSSL_free(sigbuf);
366
	if (bmd != NULL) BIO_free(bmd);
367
	apps_shutdown();
368 369 370
	EXIT(err);
	}

B
Ben Laurie 已提交
371 372 373
int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout,
	  EVP_PKEY *key, unsigned char *sigin, int siglen, const char *title,
	  const char *file)
374 375 376 377 378 379 380
	{
	int len;
	int i;

	for (;;)
		{
		i=BIO_read(bp,(char *)buf,BUFSIZE);
B
Ben Laurie 已提交
381 382 383 384 385 386 387
		if(i < 0)
			{
			BIO_printf(bio_err, "Read Error in %s\n",file);
			ERR_print_errors(bio_err);
			return 1;
			}
		if (i == 0) break;
388
		}
389 390 391 392
	if(sigin)
		{
		EVP_MD_CTX *ctx;
		BIO_get_md_ctx(bp, &ctx);
393
		i = EVP_VerifyFinal(ctx, sigin, (unsigned int)siglen, key); 
B
Ben Laurie 已提交
394 395 396 397 398 399 400
		if(i > 0)
			BIO_printf(out, "Verified OK\n");
		else if(i == 0)
			{
			BIO_printf(out, "Verification Failure\n");
			return 1;
			}
401 402 403 404
		else
			{
			BIO_printf(bio_err, "Error Verifying Data\n");
			ERR_print_errors(bio_err);
B
Ben Laurie 已提交
405
			return 1;
406
			}
B
Ben Laurie 已提交
407
		return 0;
408 409 410 411 412 413 414 415 416
		}
	if(key)
		{
		EVP_MD_CTX *ctx;
		BIO_get_md_ctx(bp, &ctx);
		if(!EVP_SignFinal(ctx, buf, (unsigned int *)&len, key)) 
			{
			BIO_printf(bio_err, "Error Signing Data\n");
			ERR_print_errors(bio_err);
B
Ben Laurie 已提交
417
			return 1;
418 419 420 421
			}
		}
	else
		len=BIO_gets(bp,(char *)buf,BUFSIZE);
422

423 424
	if(binout) BIO_write(out, buf, len);
	else 
425
		{
B
Ben Laurie 已提交
426
		BIO_write(out,title,strlen(title));
427 428 429 430 431 432 433
		for (i=0; i<len; i++)
			{
			if (sep && (i != 0))
				BIO_printf(out, ":");
			BIO_printf(out, "%02x",buf[i]);
			}
		BIO_printf(out, "\n");
434
		}
B
Ben Laurie 已提交
435
	return 0;
436 437
	}