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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,
79 	  const char *sig_name, const char *md_name,
80 	  const char *file,BIO *bmd);
81 
list_md_fn(const EVP_MD * m,const char * from,const char * to,void * arg)82 static void list_md_fn(const EVP_MD *m,
83 			const char *from, const char *to, void *arg)
84 	{
85 	const char *mname;
86 	/* Skip aliases */
87 	if (!m)
88 		return;
89 	mname = OBJ_nid2ln(EVP_MD_type(m));
90 	/* Skip shortnames */
91 	if (strcmp(from, mname))
92 		return;
93 	/* Skip clones */
94 	if (EVP_MD_flags(m) & EVP_MD_FLAG_PKEY_DIGEST)
95 		return;
96 	if (strchr(mname, ' '))
97 		mname= EVP_MD_name(m);
98 	BIO_printf(arg, "-%-14s to use the %s message digest algorithm\n",
99 			mname, mname);
100 	}
101 
102 int MAIN(int, char **);
103 
MAIN(int argc,char ** argv)104 int MAIN(int argc, char **argv)
105 	{
106 	ENGINE *e = NULL;
107 	unsigned char *buf=NULL;
108 	int i,err=1;
109 	const EVP_MD *md=NULL,*m;
110 	BIO *in=NULL,*inp;
111 	BIO *bmd=NULL;
112 	BIO *out = NULL;
113 #define PROG_NAME_SIZE  39
114 	char pname[PROG_NAME_SIZE+1];
115 	int separator=0;
116 	int debug=0;
117 	int keyform=FORMAT_PEM;
118 	const char *outfile = NULL, *keyfile = NULL;
119 	const char *sigfile = NULL, *randfile = NULL;
120 	int out_bin = -1, want_pub = 0, do_verify = 0;
121 	EVP_PKEY *sigkey = NULL;
122 	unsigned char *sigbuf = NULL;
123 	int siglen = 0;
124 	char *passargin = NULL, *passin = NULL;
125 #ifndef OPENSSL_NO_ENGINE
126 	char *engine=NULL;
127 #endif
128 	char *hmac_key=NULL;
129 	char *mac_name=NULL;
130 	int non_fips_allow = 0;
131 	STACK_OF(OPENSSL_STRING) *sigopts = NULL, *macopts = NULL;
132 
133 	apps_startup();
134 
135 	if ((buf=(unsigned char *)OPENSSL_malloc(BUFSIZE)) == NULL)
136 		{
137 		BIO_printf(bio_err,"out of memory\n");
138 		goto end;
139 		}
140 	if (bio_err == NULL)
141 		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
142 			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
143 
144 	if (!load_config(bio_err, NULL))
145 		goto end;
146 
147 	/* first check the program name */
148 	program_name(argv[0],pname,sizeof pname);
149 
150 	md=EVP_get_digestbyname(pname);
151 
152 	argc--;
153 	argv++;
154 	while (argc > 0)
155 		{
156 		if ((*argv)[0] != '-') break;
157 		if (strcmp(*argv,"-c") == 0)
158 			separator=1;
159 		else if (strcmp(*argv,"-r") == 0)
160 			separator=2;
161 		else if (strcmp(*argv,"-rand") == 0)
162 			{
163 			if (--argc < 1) break;
164 			randfile=*(++argv);
165 			}
166 		else if (strcmp(*argv,"-out") == 0)
167 			{
168 			if (--argc < 1) break;
169 			outfile=*(++argv);
170 			}
171 		else if (strcmp(*argv,"-sign") == 0)
172 			{
173 			if (--argc < 1) break;
174 			keyfile=*(++argv);
175 			}
176 		else if (!strcmp(*argv,"-passin"))
177 			{
178 			if (--argc < 1)
179 				break;
180 			passargin=*++argv;
181 			}
182 		else if (strcmp(*argv,"-verify") == 0)
183 			{
184 			if (--argc < 1) break;
185 			keyfile=*(++argv);
186 			want_pub = 1;
187 			do_verify = 1;
188 			}
189 		else if (strcmp(*argv,"-prverify") == 0)
190 			{
191 			if (--argc < 1) break;
192 			keyfile=*(++argv);
193 			do_verify = 1;
194 			}
195 		else if (strcmp(*argv,"-signature") == 0)
196 			{
197 			if (--argc < 1) break;
198 			sigfile=*(++argv);
199 			}
200 		else if (strcmp(*argv,"-keyform") == 0)
201 			{
202 			if (--argc < 1) break;
203 			keyform=str2fmt(*(++argv));
204 			}
205 #ifndef OPENSSL_NO_ENGINE
206 		else if (strcmp(*argv,"-engine") == 0)
207 			{
208 			if (--argc < 1) break;
209 			engine= *(++argv);
210         		e = setup_engine(bio_err, engine, 0);
211 			}
212 #endif
213 		else if (strcmp(*argv,"-hex") == 0)
214 			out_bin = 0;
215 		else if (strcmp(*argv,"-binary") == 0)
216 			out_bin = 1;
217 		else if (strcmp(*argv,"-d") == 0)
218 			debug=1;
219 		else if (!strcmp(*argv,"-fips-fingerprint"))
220 			hmac_key = "etaonrishdlcupfm";
221 		else if (strcmp(*argv,"-non-fips-allow") == 0)
222 			non_fips_allow=1;
223 		else if (!strcmp(*argv,"-hmac"))
224 			{
225 			if (--argc < 1)
226 				break;
227 			hmac_key=*++argv;
228 			}
229 		else if (!strcmp(*argv,"-mac"))
230 			{
231 			if (--argc < 1)
232 				break;
233 			mac_name=*++argv;
234 			}
235 		else if (strcmp(*argv,"-sigopt") == 0)
236 			{
237 			if (--argc < 1)
238 				break;
239 			if (!sigopts)
240 				sigopts = sk_OPENSSL_STRING_new_null();
241 			if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, *(++argv)))
242 				break;
243 			}
244 		else if (strcmp(*argv,"-macopt") == 0)
245 			{
246 			if (--argc < 1)
247 				break;
248 			if (!macopts)
249 				macopts = sk_OPENSSL_STRING_new_null();
250 			if (!macopts || !sk_OPENSSL_STRING_push(macopts, *(++argv)))
251 				break;
252 			}
253 		else if ((m=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
254 			md=m;
255 		else
256 			break;
257 		argc--;
258 		argv++;
259 		}
260 
261 
262 	if(do_verify && !sigfile) {
263 		BIO_printf(bio_err, "No signature to verify: use the -signature option\n");
264 		goto end;
265 	}
266 
267 	if ((argc > 0) && (argv[0][0] == '-')) /* bad option */
268 		{
269 		BIO_printf(bio_err,"unknown option '%s'\n",*argv);
270 		BIO_printf(bio_err,"options are\n");
271 		BIO_printf(bio_err,"-c              to output the digest with separating colons\n");
272 		BIO_printf(bio_err,"-r              to output the digest in coreutils format\n");
273 		BIO_printf(bio_err,"-d              to output debug info\n");
274 		BIO_printf(bio_err,"-hex            output as hex dump\n");
275 		BIO_printf(bio_err,"-binary         output in binary form\n");
276 		BIO_printf(bio_err,"-sign   file    sign digest using private key in file\n");
277 		BIO_printf(bio_err,"-verify file    verify a signature using public key in file\n");
278 		BIO_printf(bio_err,"-prverify file  verify a signature using private key in file\n");
279 		BIO_printf(bio_err,"-keyform arg    key file format (PEM or ENGINE)\n");
280 		BIO_printf(bio_err,"-out filename   output to filename rather than stdout\n");
281 		BIO_printf(bio_err,"-signature file signature to verify\n");
282 		BIO_printf(bio_err,"-sigopt nm:v    signature parameter\n");
283 		BIO_printf(bio_err,"-hmac key       create hashed MAC with key\n");
284 		BIO_printf(bio_err,"-mac algorithm  create MAC (not neccessarily HMAC)\n");
285 		BIO_printf(bio_err,"-macopt nm:v    MAC algorithm parameters or key\n");
286 #ifndef OPENSSL_NO_ENGINE
287 		BIO_printf(bio_err,"-engine e       use engine e, possibly a hardware device.\n");
288 #endif
289 
290 		EVP_MD_do_all_sorted(list_md_fn, bio_err);
291 		goto end;
292 		}
293 
294 	in=BIO_new(BIO_s_file());
295 	bmd=BIO_new(BIO_f_md());
296 	if (debug)
297 		{
298 		BIO_set_callback(in,BIO_debug_callback);
299 		/* needed for windows 3.1 */
300 		BIO_set_callback_arg(in,(char *)bio_err);
301 		}
302 
303 	if(!app_passwd(bio_err, passargin, NULL, &passin, NULL))
304 		{
305 		BIO_printf(bio_err, "Error getting password\n");
306 		goto end;
307 		}
308 
309 	if ((in == NULL) || (bmd == NULL))
310 		{
311 		ERR_print_errors(bio_err);
312 		goto end;
313 		}
314 
315 	if(out_bin == -1) {
316 		if(keyfile)
317 			out_bin = 1;
318 		else
319 			out_bin = 0;
320 	}
321 
322 	if(randfile)
323 		app_RAND_load_file(randfile, bio_err, 0);
324 
325 	if(outfile) {
326 		if(out_bin)
327 			out = BIO_new_file(outfile, "wb");
328 		else    out = BIO_new_file(outfile, "w");
329 	} else {
330 		out = BIO_new_fp(stdout, BIO_NOCLOSE);
331 #ifdef OPENSSL_SYS_VMS
332 		{
333 		BIO *tmpbio = BIO_new(BIO_f_linebuffer());
334 		out = BIO_push(tmpbio, out);
335 		}
336 #endif
337 	}
338 
339 	if(!out) {
340 		BIO_printf(bio_err, "Error opening output file %s\n",
341 					outfile ? outfile : "(stdout)");
342 		ERR_print_errors(bio_err);
343 		goto end;
344 	}
345 	if ((!!mac_name + !!keyfile + !!hmac_key) > 1)
346 		{
347 		BIO_printf(bio_err, "MAC and Signing key cannot both be specified\n");
348 		goto end;
349 		}
350 
351 	if(keyfile)
352 		{
353 		if (want_pub)
354 			sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL,
355 				e, "key file");
356 		else
357 			sigkey = load_key(bio_err, keyfile, keyform, 0, passin,
358 				e, "key file");
359 		if (!sigkey)
360 			{
361 			/* load_[pub]key() has already printed an appropriate
362 			   message */
363 			goto end;
364 			}
365 		}
366 
367 	if (mac_name)
368 		{
369 		EVP_PKEY_CTX *mac_ctx = NULL;
370 		int r = 0;
371 		if (!init_gen_str(bio_err, &mac_ctx, mac_name,e, 0))
372 			goto mac_end;
373 		if (macopts)
374 			{
375 			char *macopt;
376 			for (i = 0; i < sk_OPENSSL_STRING_num(macopts); i++)
377 				{
378 				macopt = sk_OPENSSL_STRING_value(macopts, i);
379 				if (pkey_ctrl_string(mac_ctx, macopt) <= 0)
380 					{
381 					BIO_printf(bio_err,
382 						"MAC parameter error \"%s\"\n",
383 						macopt);
384 					ERR_print_errors(bio_err);
385 					goto mac_end;
386 					}
387 				}
388 			}
389 		if (EVP_PKEY_keygen(mac_ctx, &sigkey) <= 0)
390 			{
391 			BIO_puts(bio_err, "Error generating key\n");
392 			ERR_print_errors(bio_err);
393 			goto mac_end;
394 			}
395 		r = 1;
396 		mac_end:
397 		if (mac_ctx)
398 			EVP_PKEY_CTX_free(mac_ctx);
399 		if (r == 0)
400 			goto end;
401 		}
402 
403 	if (non_fips_allow)
404 		{
405 		EVP_MD_CTX *md_ctx;
406 		BIO_get_md_ctx(bmd,&md_ctx);
407 		EVP_MD_CTX_set_flags(md_ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
408 		}
409 
410 	if (hmac_key)
411 		{
412 		sigkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, e,
413 					(unsigned char *)hmac_key, -1);
414 		if (!sigkey)
415 			goto end;
416 		}
417 
418 	if (sigkey)
419 		{
420 		EVP_MD_CTX *mctx = NULL;
421 		EVP_PKEY_CTX *pctx = NULL;
422 		int r;
423 		if (!BIO_get_md_ctx(bmd, &mctx))
424 			{
425 			BIO_printf(bio_err, "Error getting context\n");
426 			ERR_print_errors(bio_err);
427 			goto end;
428 			}
429 		if (do_verify)
430 			r = EVP_DigestVerifyInit(mctx, &pctx, md, NULL, sigkey);
431 		else
432 			r = EVP_DigestSignInit(mctx, &pctx, md, NULL, sigkey);
433 		if (!r)
434 			{
435 			BIO_printf(bio_err, "Error setting context\n");
436 			ERR_print_errors(bio_err);
437 			goto end;
438 			}
439 		if (sigopts)
440 			{
441 			char *sigopt;
442 			for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++)
443 				{
444 				sigopt = sk_OPENSSL_STRING_value(sigopts, i);
445 				if (pkey_ctrl_string(pctx, sigopt) <= 0)
446 					{
447 					BIO_printf(bio_err,
448 						"parameter error \"%s\"\n",
449 						sigopt);
450 					ERR_print_errors(bio_err);
451 					goto end;
452 					}
453 				}
454 			}
455 		}
456 	/* we use md as a filter, reading from 'in' */
457 	else
458 		{
459 		if (md == NULL)
460 			md = EVP_md5();
461 		if (!BIO_set_md(bmd,md))
462 			{
463 			BIO_printf(bio_err, "Error setting digest %s\n", pname);
464 			ERR_print_errors(bio_err);
465 			goto end;
466 			}
467 		}
468 
469 	if(sigfile && sigkey) {
470 		BIO *sigbio;
471 		sigbio = BIO_new_file(sigfile, "rb");
472 		siglen = EVP_PKEY_size(sigkey);
473 		sigbuf = OPENSSL_malloc(siglen);
474 		if(!sigbio) {
475 			BIO_printf(bio_err, "Error opening signature file %s\n",
476 								sigfile);
477 			ERR_print_errors(bio_err);
478 			goto end;
479 		}
480 		siglen = BIO_read(sigbio, sigbuf, siglen);
481 		BIO_free(sigbio);
482 		if(siglen <= 0) {
483 			BIO_printf(bio_err, "Error reading signature file %s\n",
484 								sigfile);
485 			ERR_print_errors(bio_err);
486 			goto end;
487 		}
488 	}
489 	inp=BIO_push(bmd,in);
490 
491 	if (md == NULL)
492 		{
493 		EVP_MD_CTX *tctx;
494 		BIO_get_md_ctx(bmd, &tctx);
495 		md = EVP_MD_CTX_md(tctx);
496 		}
497 
498 	if (argc == 0)
499 		{
500 		BIO_set_fp(in,stdin,BIO_NOCLOSE);
501 		err=do_fp(out, buf,inp,separator, out_bin, sigkey, sigbuf,
502 			  siglen,NULL,NULL,"stdin",bmd);
503 		}
504 	else
505 		{
506 		const char *md_name = NULL, *sig_name = NULL;
507 		if(!out_bin)
508 			{
509 			if (sigkey)
510 				{
511 				const EVP_PKEY_ASN1_METHOD *ameth;
512 				ameth = EVP_PKEY_get0_asn1(sigkey);
513 				if (ameth)
514 					EVP_PKEY_asn1_get0_info(NULL, NULL,
515 						NULL, NULL, &sig_name, ameth);
516 				}
517 			md_name = EVP_MD_name(md);
518 			}
519 		err = 0;
520 		for (i=0; i<argc; i++)
521 			{
522 			int r;
523 			if (BIO_read_filename(in,argv[i]) <= 0)
524 				{
525 				perror(argv[i]);
526 				err++;
527 				continue;
528 				}
529 			else
530 			r=do_fp(out,buf,inp,separator,out_bin,sigkey,sigbuf,
531 				siglen,sig_name,md_name, argv[i],bmd);
532 			if(r)
533 			    err=r;
534 			(void)BIO_reset(bmd);
535 			}
536 		}
537 end:
538 	if (buf != NULL)
539 		{
540 		OPENSSL_cleanse(buf,BUFSIZE);
541 		OPENSSL_free(buf);
542 		}
543 	if (in != NULL) BIO_free(in);
544 	if (passin)
545 		OPENSSL_free(passin);
546 	BIO_free_all(out);
547 	EVP_PKEY_free(sigkey);
548 	if (sigopts)
549 		sk_OPENSSL_STRING_free(sigopts);
550 	if (macopts)
551 		sk_OPENSSL_STRING_free(macopts);
552 	if(sigbuf) OPENSSL_free(sigbuf);
553 	if (bmd != NULL) BIO_free(bmd);
554 	apps_shutdown();
555 	OPENSSL_EXIT(err);
556 	}
557 
do_fp(BIO * out,unsigned char * buf,BIO * bp,int sep,int binout,EVP_PKEY * key,unsigned char * sigin,int siglen,const char * sig_name,const char * md_name,const char * file,BIO * bmd)558 int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout,
559 	  EVP_PKEY *key, unsigned char *sigin, int siglen,
560 	  const char *sig_name, const char *md_name,
561 	  const char *file,BIO *bmd)
562 	{
563 	size_t len;
564 	int i;
565 
566 	for (;;)
567 		{
568 		i=BIO_read(bp,(char *)buf,BUFSIZE);
569 		if(i < 0)
570 			{
571 			BIO_printf(bio_err, "Read Error in %s\n",file);
572 			ERR_print_errors(bio_err);
573 			return 1;
574 			}
575 		if (i == 0) break;
576 		}
577 	if(sigin)
578 		{
579 		EVP_MD_CTX *ctx;
580 		BIO_get_md_ctx(bp, &ctx);
581 		i = EVP_DigestVerifyFinal(ctx, sigin, (unsigned int)siglen);
582 		if(i > 0)
583 			BIO_printf(out, "Verified OK\n");
584 		else if(i == 0)
585 			{
586 			BIO_printf(out, "Verification Failure\n");
587 			return 1;
588 			}
589 		else
590 			{
591 			BIO_printf(bio_err, "Error Verifying Data\n");
592 			ERR_print_errors(bio_err);
593 			return 1;
594 			}
595 		return 0;
596 		}
597 	if(key)
598 		{
599 		EVP_MD_CTX *ctx;
600 		BIO_get_md_ctx(bp, &ctx);
601 		len = BUFSIZE;
602 		if(!EVP_DigestSignFinal(ctx, buf, &len))
603 			{
604 			BIO_printf(bio_err, "Error Signing Data\n");
605 			ERR_print_errors(bio_err);
606 			return 1;
607 			}
608 		}
609 	else
610 		{
611 		len=BIO_gets(bp,(char *)buf,BUFSIZE);
612 		if ((int)len <0)
613 			{
614 			ERR_print_errors(bio_err);
615 			return 1;
616 			}
617 		}
618 
619 	if(binout) BIO_write(out, buf, len);
620 	else if (sep == 2)
621 		{
622 		for (i=0; i<(int)len; i++)
623 			BIO_printf(out, "%02x",buf[i]);
624 		BIO_printf(out, " *%s\n", file);
625 		}
626 	else
627 		{
628 		if (sig_name)
629 			BIO_printf(out, "%s-%s(%s)= ", sig_name, md_name, file);
630 		else if (md_name)
631 			BIO_printf(out, "%s(%s)= ", md_name, file);
632 		else
633 			BIO_printf(out, "(%s)= ", file);
634 		for (i=0; i<(int)len; i++)
635 			{
636 			if (sep && (i != 0))
637 				BIO_printf(out, ":");
638 			BIO_printf(out, "%02x",buf[i]);
639 			}
640 		BIO_printf(out, "\n");
641 		}
642 	return 0;
643 	}
644 
645