GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/openssl/dgst.c Lines: 181 301 60.1 %
Date: 2017-11-13 Branches: 126 232 54.3 %

Line Branch Exec Source
1
/* $OpenBSD: dgst.c,v 1.11 2017/04/18 02:15:50 deraadt Exp $ */
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 <stdlib.h>
61
#include <string.h>
62
63
#include "apps.h"
64
65
#include <openssl/bio.h>
66
#include <openssl/err.h>
67
#include <openssl/evp.h>
68
#include <openssl/hmac.h>
69
#include <openssl/objects.h>
70
#include <openssl/pem.h>
71
#include <openssl/x509.h>
72
73
#define BUFSIZE	1024*8
74
75
int
76
do_fp(BIO * out, unsigned char *buf, BIO * bp, int sep, int binout,
77
    EVP_PKEY * key, unsigned char *sigin, int siglen,
78
    const char *sig_name, const char *md_name,
79
    const char *file, BIO * bmd);
80
81
static void
82
list_md_fn(const EVP_MD * m, const char *from, const char *to, void *arg)
83
{
84
	const char *mname;
85
	/* Skip aliases */
86
472
	if (!m)
87
108
		return;
88
128
	mname = OBJ_nid2ln(EVP_MD_type(m));
89
	/* Skip shortnames */
90
128
	if (strcmp(from, mname))
91
60
		return;
92
	/* Skip clones */
93
68
	if (EVP_MD_flags(m) & EVP_MD_FLAG_PKEY_DIGEST)
94
12
		return;
95
56
	if (strchr(mname, ' '))
96
16
		mname = EVP_MD_name(m);
97
56
	BIO_printf(arg, "-%-14s to use the %s message digest algorithm\n",
98
	    mname, mname);
99
292
}
100
101
int
102
dgst_main(int argc, char **argv)
103
{
104
	unsigned char *buf = NULL;
105
	int i, err = 1;
106
	const EVP_MD *md = NULL, *m;
107
	BIO *in = NULL, *inp;
108
	BIO *bmd = NULL;
109
	BIO *out = NULL;
110
#define PROG_NAME_SIZE  39
111
368
	char pname[PROG_NAME_SIZE + 1];
112
	int separator = 0;
113
	int debug = 0;
114
	int keyform = FORMAT_PEM;
115
	const char *outfile = NULL, *keyfile = NULL;
116
	const char *sigfile = NULL;
117
	int out_bin = -1, want_pub = 0, do_verify = 0;
118
184
	EVP_PKEY *sigkey = NULL;
119
	unsigned char *sigbuf = NULL;
120
	int siglen = 0;
121
184
	char *passargin = NULL, *passin = NULL;
122
	char *hmac_key = NULL;
123
	char *mac_name = NULL;
124
	STACK_OF(OPENSSL_STRING) * sigopts = NULL, *macopts = NULL;
125
126
184
	if (single_execution) {
127
184
		if (pledge("stdio cpath wpath rpath tty flock", NULL) == -1) {
128
			perror("pledge");
129
			exit(1);
130
		}
131
	}
132
133
184
	if ((buf = malloc(BUFSIZE)) == NULL) {
134
		BIO_printf(bio_err, "out of memory\n");
135
		goto end;
136
	}
137
138
	/* first check the program name */
139
184
	program_name(argv[0], pname, sizeof pname);
140
141
184
	md = EVP_get_digestbyname(pname);
142
143
184
	argc--;
144
184
	argv++;
145
1408
	while (argc > 0) {
146
680
		if ((*argv)[0] != '-')
147
			break;
148
524
		if (strcmp(*argv, "-c") == 0)
149
			separator = 1;
150
524
		else if (strcmp(*argv, "-r") == 0)
151
			separator = 2;
152
524
		else if (strcmp(*argv, "-out") == 0) {
153
156
			if (--argc < 1)
154
				break;
155
156
			outfile = *(++argv);
156
524
		} else if (strcmp(*argv, "-sign") == 0) {
157
			if (--argc < 1)
158
				break;
159
			keyfile = *(++argv);
160
368
		} else if (!strcmp(*argv, "-passin")) {
161
			if (--argc < 1)
162
				break;
163
			passargin = *++argv;
164
368
		} else if (strcmp(*argv, "-verify") == 0) {
165
			if (--argc < 1)
166
				break;
167
			keyfile = *(++argv);
168
			want_pub = 1;
169
			do_verify = 1;
170
368
		} else if (strcmp(*argv, "-prverify") == 0) {
171
			if (--argc < 1)
172
				break;
173
			keyfile = *(++argv);
174
			do_verify = 1;
175
368
		} else if (strcmp(*argv, "-signature") == 0) {
176
			if (--argc < 1)
177
				break;
178
			sigfile = *(++argv);
179
368
		} else if (strcmp(*argv, "-keyform") == 0) {
180
			if (--argc < 1)
181
				break;
182
			keyform = str2fmt(*(++argv));
183
		}
184
368
		else if (strcmp(*argv, "-hex") == 0)
185
			out_bin = 0;
186
368
		else if (strcmp(*argv, "-binary") == 0)
187
			out_bin = 1;
188
368
		else if (strcmp(*argv, "-d") == 0)
189
			debug = 1;
190
368
		else if (!strcmp(*argv, "-hmac")) {
191
52
			if (--argc < 1)
192
				break;
193
52
			hmac_key = *++argv;
194
368
		} else if (!strcmp(*argv, "-mac")) {
195
52
			if (--argc < 1)
196
				break;
197
52
			mac_name = *++argv;
198
316
		} else if (strcmp(*argv, "-sigopt") == 0) {
199
			if (--argc < 1)
200
				break;
201
			if (!sigopts)
202
				sigopts = sk_OPENSSL_STRING_new_null();
203
			if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, *(++argv)))
204
				break;
205
264
		} else if (strcmp(*argv, "-macopt") == 0) {
206
104
			if (--argc < 1)
207
				break;
208
104
			if (!macopts)
209
52
				macopts = sk_OPENSSL_STRING_new_null();
210

208
			if (!macopts || !sk_OPENSSL_STRING_push(macopts, *(++argv)))
211
				break;
212
160
		} else if ((m = EVP_get_digestbyname(&((*argv)[1]))) != NULL)
213
			md = m;
214
		else
215
			break;
216
520
		argc--;
217
520
		argv++;
218
	}
219
220
221
184
	if (do_verify && !sigfile) {
222
		BIO_printf(bio_err, "No signature to verify: use the -signature option\n");
223
		goto end;
224
	}
225

344
	if ((argc > 0) && (argv[0][0] == '-')) {	/* bad option */
226
4
		BIO_printf(bio_err, "unknown option '%s'\n", *argv);
227
4
		BIO_printf(bio_err, "options are\n");
228
4
		BIO_printf(bio_err, "-c              to output the digest with separating colons\n");
229
4
		BIO_printf(bio_err, "-r              to output the digest in coreutils format\n");
230
4
		BIO_printf(bio_err, "-d              to output debug info\n");
231
4
		BIO_printf(bio_err, "-hex            output as hex dump\n");
232
4
		BIO_printf(bio_err, "-binary         output in binary form\n");
233
4
		BIO_printf(bio_err, "-sign   file    sign digest using private key in file\n");
234
4
		BIO_printf(bio_err, "-verify file    verify a signature using public key in file\n");
235
4
		BIO_printf(bio_err, "-prverify file  verify a signature using private key in file\n");
236
4
		BIO_printf(bio_err, "-keyform arg    key file format (PEM)\n");
237
4
		BIO_printf(bio_err, "-out filename   output to filename rather than stdout\n");
238
4
		BIO_printf(bio_err, "-signature file signature to verify\n");
239
4
		BIO_printf(bio_err, "-sigopt nm:v    signature parameter\n");
240
4
		BIO_printf(bio_err, "-hmac key       create hashed MAC with key\n");
241
4
		BIO_printf(bio_err, "-mac algorithm  create MAC (not neccessarily HMAC)\n");
242
4
		BIO_printf(bio_err, "-macopt nm:v    MAC algorithm parameters or key\n");
243
244
4
		EVP_MD_do_all_sorted(list_md_fn, bio_err);
245
4
		goto end;
246
	}
247
248
180
	in = BIO_new(BIO_s_file());
249
180
	bmd = BIO_new(BIO_f_md());
250
180
	if (in == NULL || bmd == NULL) {
251
		ERR_print_errors(bio_err);
252
		goto end;
253
	}
254
255
180
	if (debug) {
256
		BIO_set_callback(in, BIO_debug_callback);
257
		/* needed for windows 3.1 */
258
		BIO_set_callback_arg(in, (char *) bio_err);
259
	}
260
180
	if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
261
		BIO_printf(bio_err, "Error getting password\n");
262
		goto end;
263
	}
264
180
	if (out_bin == -1) {
265
180
		if (keyfile)
266
			out_bin = 1;
267
		else
268
			out_bin = 0;
269
	}
270
271
180
	if (outfile) {
272
156
		if (out_bin)
273
			out = BIO_new_file(outfile, "wb");
274
		else
275
156
			out = BIO_new_file(outfile, "w");
276
	} else {
277
24
		out = BIO_new_fp(stdout, BIO_NOCLOSE);
278
	}
279
280
180
	if (!out) {
281
		BIO_printf(bio_err, "Error opening output file %s\n",
282
		    outfile ? outfile : "(stdout)");
283
		ERR_print_errors(bio_err);
284
		goto end;
285
	}
286
180
	if ((!!mac_name + !!keyfile + !!hmac_key) > 1) {
287
		BIO_printf(bio_err, "MAC and Signing key cannot both be specified\n");
288
		goto end;
289
	}
290
180
	if (keyfile) {
291
		if (want_pub)
292
			sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL,
293
			    "key file");
294
		else
295
			sigkey = load_key(bio_err, keyfile, keyform, 0, passin,
296
			    "key file");
297
		if (!sigkey) {
298
			/*
299
			 * load_[pub]key() has already printed an appropriate
300
			 * message
301
			 */
302
			goto end;
303
		}
304
	}
305
180
	if (mac_name) {
306
52
		EVP_PKEY_CTX *mac_ctx = NULL;
307
		int r = 0;
308
52
		if (!init_gen_str(bio_err, &mac_ctx, mac_name, 0))
309
			goto mac_end;
310
52
		if (macopts) {
311
			char *macopt;
312
312
			for (i = 0; i < sk_OPENSSL_STRING_num(macopts); i++) {
313
104
				macopt = sk_OPENSSL_STRING_value(macopts, i);
314
104
				if (pkey_ctrl_string(mac_ctx, macopt) <= 0) {
315
					BIO_printf(bio_err,
316
					    "MAC parameter error \"%s\"\n",
317
					    macopt);
318
					ERR_print_errors(bio_err);
319
					goto mac_end;
320
				}
321
			}
322
52
		}
323
52
		if (EVP_PKEY_keygen(mac_ctx, &sigkey) <= 0) {
324
			BIO_puts(bio_err, "Error generating key\n");
325
			ERR_print_errors(bio_err);
326
			goto mac_end;
327
		}
328
52
		r = 1;
329
mac_end:
330
52
		if (mac_ctx)
331
52
			EVP_PKEY_CTX_free(mac_ctx);
332
52
		if (r == 0)
333
			goto end;
334
104
	}
335
180
	if (hmac_key) {
336
52
		sigkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, NULL,
337
		    (unsigned char *) hmac_key, -1);
338
52
		if (!sigkey)
339
			goto end;
340
	}
341
180
	if (sigkey) {
342
104
		EVP_MD_CTX *mctx = NULL;
343
104
		EVP_PKEY_CTX *pctx = NULL;
344
		int r;
345
104
		if (!BIO_get_md_ctx(bmd, &mctx)) {
346
			BIO_printf(bio_err, "Error getting context\n");
347
			ERR_print_errors(bio_err);
348
			goto end;
349
		}
350
104
		if (do_verify)
351
			r = EVP_DigestVerifyInit(mctx, &pctx, md, NULL, sigkey);
352
		else
353
104
			r = EVP_DigestSignInit(mctx, &pctx, md, NULL, sigkey);
354
104
		if (!r) {
355
			BIO_printf(bio_err, "Error setting context\n");
356
			ERR_print_errors(bio_err);
357
			goto end;
358
		}
359
104
		if (sigopts) {
360
			char *sigopt;
361
			for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
362
				sigopt = sk_OPENSSL_STRING_value(sigopts, i);
363
				if (pkey_ctrl_string(pctx, sigopt) <= 0) {
364
					BIO_printf(bio_err,
365
					    "parameter error \"%s\"\n",
366
					    sigopt);
367
					ERR_print_errors(bio_err);
368
					goto end;
369
				}
370
			}
371
		}
372
416
	}
373
	/* we use md as a filter, reading from 'in' */
374
	else {
375
76
		if (md == NULL)
376
			md = EVP_md5();
377
76
		if (!BIO_set_md(bmd, md)) {
378
			BIO_printf(bio_err, "Error setting digest %s\n", pname);
379
			ERR_print_errors(bio_err);
380
			goto end;
381
		}
382
	}
383
384
180
	if (sigfile && sigkey) {
385
		BIO *sigbio;
386
		siglen = EVP_PKEY_size(sigkey);
387
		sigbuf = malloc(siglen);
388
		if (sigbuf == NULL) {
389
			BIO_printf(bio_err, "out of memory\n");
390
			ERR_print_errors(bio_err);
391
			goto end;
392
		}
393
		sigbio = BIO_new_file(sigfile, "rb");
394
		if (!sigbio) {
395
			BIO_printf(bio_err, "Error opening signature file %s\n",
396
			    sigfile);
397
			ERR_print_errors(bio_err);
398
			goto end;
399
		}
400
		siglen = BIO_read(sigbio, sigbuf, siglen);
401
		BIO_free(sigbio);
402
		if (siglen <= 0) {
403
			BIO_printf(bio_err, "Error reading signature file %s\n",
404
			    sigfile);
405
			ERR_print_errors(bio_err);
406
			goto end;
407
		}
408
	}
409
180
	inp = BIO_push(bmd, in);
410
411
180
	if (md == NULL) {
412
		EVP_MD_CTX *tctx;
413
		BIO_get_md_ctx(bmd, &tctx);
414
		md = EVP_MD_CTX_md(tctx);
415
	}
416
180
	if (argc == 0) {
417
24
		BIO_set_fp(in, stdin, BIO_NOCLOSE);
418
24
		err = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf,
419
		    siglen, NULL, NULL, "stdin", bmd);
420
24
	} else {
421
156
		const char *md_name = NULL, *sig_name = NULL;
422
156
		if (!out_bin) {
423
156
			if (sigkey) {
424
				const EVP_PKEY_ASN1_METHOD *ameth;
425
104
				ameth = EVP_PKEY_get0_asn1(sigkey);
426
104
				if (ameth)
427
104
					EVP_PKEY_asn1_get0_info(NULL, NULL,
428
					    NULL, NULL, &sig_name, ameth);
429
104
			}
430
156
			md_name = EVP_MD_name(md);
431
156
		}
432
		err = 0;
433
624
		for (i = 0; i < argc; i++) {
434
			int r;
435
156
			if (BIO_read_filename(in, argv[i]) <= 0) {
436
				perror(argv[i]);
437
				err++;
438
				continue;
439
			} else {
440
156
				r = do_fp(out, buf, inp, separator, out_bin,
441
156
				    sigkey, sigbuf, siglen, sig_name, md_name,
442
156
				    argv[i], bmd);
443
			}
444
156
			if (r)
445
				err = r;
446
156
			(void) BIO_reset(bmd);
447
156
		}
448
156
	}
449
450
end:
451
184
	freezero(buf, BUFSIZE);
452
184
	if (in != NULL)
453
180
		BIO_free(in);
454
184
	free(passin);
455
184
	BIO_free_all(out);
456
184
	EVP_PKEY_free(sigkey);
457
184
	if (sigopts)
458
		sk_OPENSSL_STRING_free(sigopts);
459
184
	if (macopts)
460
52
		sk_OPENSSL_STRING_free(macopts);
461
184
	free(sigbuf);
462
184
	if (bmd != NULL)
463
180
		BIO_free(bmd);
464
465
184
	return (err);
466
184
}
467
468
int
469
do_fp(BIO * out, unsigned char *buf, BIO * bp, int sep, int binout,
470
    EVP_PKEY * key, unsigned char *sigin, int siglen,
471
    const char *sig_name, const char *md_name,
472
    const char *file, BIO * bmd)
473
{
474
360
	size_t len;
475
	int i;
476
477
360
	for (;;) {
478
360
		i = BIO_read(bp, (char *) buf, BUFSIZE);
479
360
		if (i < 0) {
480
			BIO_printf(bio_err, "Read Error in %s\n", file);
481
			ERR_print_errors(bio_err);
482
			return 1;
483
		}
484
360
		if (i == 0)
485
			break;
486
	}
487
180
	if (sigin) {
488
		EVP_MD_CTX *ctx;
489
		BIO_get_md_ctx(bp, &ctx);
490
		i = EVP_DigestVerifyFinal(ctx, sigin, (unsigned int) siglen);
491
		if (i > 0)
492
			BIO_printf(out, "Verified OK\n");
493
		else if (i == 0) {
494
			BIO_printf(out, "Verification Failure\n");
495
			return 1;
496
		} else {
497
			BIO_printf(bio_err, "Error Verifying Data\n");
498
			ERR_print_errors(bio_err);
499
			return 1;
500
		}
501
		return 0;
502
	}
503
180
	if (key) {
504
104
		EVP_MD_CTX *ctx;
505
104
		BIO_get_md_ctx(bp, &ctx);
506
104
		len = BUFSIZE;
507
104
		if (!EVP_DigestSignFinal(ctx, buf, &len)) {
508
			BIO_printf(bio_err, "Error Signing Data\n");
509
			ERR_print_errors(bio_err);
510
			return 1;
511
		}
512
208
	} else {
513
76
		len = BIO_gets(bp, (char *) buf, BUFSIZE);
514
76
		if ((int) len < 0) {
515
			ERR_print_errors(bio_err);
516
			return 1;
517
		}
518
	}
519
520
180
	if (binout)
521
		BIO_write(out, buf, len);
522
180
	else if (sep == 2) {
523
		for (i = 0; i < (int) len; i++)
524
			BIO_printf(out, "%02x", buf[i]);
525
		BIO_printf(out, " *%s\n", file);
526
	} else {
527
180
		if (sig_name)
528
104
			BIO_printf(out, "%s-%s(%s)= ", sig_name, md_name, file);
529
76
		else if (md_name)
530
52
			BIO_printf(out, "%s(%s)= ", md_name, file);
531
		else
532
24
			BIO_printf(out, "(%s)= ", file);
533
11128
		for (i = 0; i < (int) len; i++) {
534
5384
			if (sep && (i != 0))
535
				BIO_printf(out, ":");
536
5384
			BIO_printf(out, "%02x", buf[i]);
537
		}
538
180
		BIO_printf(out, "\n");
539
	}
540
180
	return 0;
541
180
}