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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
82 int MAIN(int, char **);
83
84 int MAIN(int argc, char **argv)
85 {
86 ENGINE *e = NULL;
87 unsigned char *buf=NULL;
88 int i,err=1;
89 const EVP_MD *md=NULL,*m;
90 BIO *in=NULL,*inp;
91 BIO *bmd=NULL;
92 BIO *out = NULL;
93 #define PROG_NAME_SIZE 39
94 char pname[PROG_NAME_SIZE+1];
95 int separator=0;
96 int debug=0;
97 int keyform=FORMAT_PEM;
98 const char *outfile = NULL, *keyfile = NULL;
99 const char *sigfile = NULL, *randfile = NULL;
100 int out_bin = -1, want_pub = 0, do_verify = 0;
101 EVP_PKEY *sigkey = NULL;
102 unsigned char *sigbuf = NULL;
103 int siglen = 0;
104 char *passargin = NULL, *passin = NULL;
105 #ifndef OPENSSL_NO_ENGINE
106 char *engine=NULL;
107 #endif
108 char *hmac_key=NULL;
109 char *mac_name=NULL;
110 STACK *sigopts = NULL, *macopts = NULL;
111
112 apps_startup();
113
114 if ((buf=(unsigned char *)OPENSSL_malloc(BUFSIZE)) == NULL)
115 {
116 BIO_printf(bio_err,"out of memory\n");
117 goto end;
118 }
119 if (bio_err == NULL)
120 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
121 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
122
123 if (!load_config(bio_err, NULL))
124 goto end;
125
126 /* first check the program name */
127 program_name(argv[0],pname,sizeof pname);
128
129 md=EVP_get_digestbyname(pname);
130
131 argc--;
132 argv++;
133 while (argc > 0)
134 {
135 if ((*argv)[0] != '-') break;
136 if (strcmp(*argv,"-c") == 0)
137 separator=1;
138 else if (strcmp(*argv,"-rand") == 0)
139 {
140 if (--argc < 1) break;
141 randfile=*(++argv);
142 }
143 else if (strcmp(*argv,"-out") == 0)
144 {
145 if (--argc < 1) break;
146 outfile=*(++argv);
147 }
148 else if (strcmp(*argv,"-sign") == 0)
149 {
150 if (--argc < 1) break;
151 keyfile=*(++argv);
152 }
153 else if (!strcmp(*argv,"-passin"))
154 {
155 if (--argc < 1)
156 break;
157 passargin=*++argv;
158 }
159 else if (strcmp(*argv,"-verify") == 0)
160 {
161 if (--argc < 1) break;
162 keyfile=*(++argv);
163 want_pub = 1;
164 do_verify = 1;
165 }
166 else if (strcmp(*argv,"-prverify") == 0)
167 {
168 if (--argc < 1) break;
169 keyfile=*(++argv);
170 do_verify = 1;
171 }
172 else if (strcmp(*argv,"-signature") == 0)
173 {
174 if (--argc < 1) break;
175 sigfile=*(++argv);
176 }
177 else if (strcmp(*argv,"-keyform") == 0)
178 {
179 if (--argc < 1) break;
180 keyform=str2fmt(*(++argv));
181 }
182 #ifndef OPENSSL_NO_ENGINE
183 else if (strcmp(*argv,"-engine") == 0)
184 {
185 if (--argc < 1) break;
186 engine= *(++argv);
187 e = setup_engine(bio_err, engine, 0);
188 }
189 #endif
190 else if (strcmp(*argv,"-hex") == 0)
191 out_bin = 0;
192 else if (strcmp(*argv,"-binary") == 0)
193 out_bin = 1;
194 else if (strcmp(*argv,"-d") == 0)
195 debug=1;
196 else if (!strcmp(*argv,"-hmac"))
197 {
198 if (--argc < 1)
199 break;
200 hmac_key=*++argv;
201 }
202 else if (!strcmp(*argv,"-mac"))
203 {
204 if (--argc < 1)
205 break;
206 mac_name=*++argv;
207 }
208 else if (strcmp(*argv,"-sigopt") == 0)
209 {
210 if (--argc < 1)
211 break;
212 if (!sigopts)
213 sigopts = sk_new_null();
214 if (!sigopts || !sk_push(sigopts, *(++argv)))
215 break;
216 }
217 else if (strcmp(*argv,"-macopt") == 0)
218 {
219 if (--argc < 1)
220 break;
221 if (!macopts)
222 macopts = sk_new_null();
223 if (!macopts || !sk_push(macopts, *(++argv)))
224 break;
225 }
226 else if ((m=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
227 md=m;
228 else
229 break;
230 argc--;
231 argv++;
232 }
233
234
235 if(do_verify && !sigfile) {
236 BIO_printf(bio_err, "No signature to verify: use the -signature option\n");
237 goto end;
238 }
239
240 if ((argc > 0) && (argv[0][0] == '-')) /* bad option */
241 {
242 BIO_printf(bio_err,"unknown option '%s'\n",*argv);
243 BIO_printf(bio_err,"options are\n");
244 BIO_printf(bio_err,"-c to output the digest with separating colons\n");
245 BIO_printf(bio_err,"-d to output debug info\n");
246 BIO_printf(bio_err,"-hex output as hex dump\n");
247 BIO_printf(bio_err,"-binary output in binary form\n");
248 BIO_printf(bio_err,"-sign file sign digest using private key in file\n");
249 BIO_printf(bio_err,"-verify file verify a signature using public key in file\n");
250 BIO_printf(bio_err,"-prverify file verify a signature using private key in file\n");
251 BIO_printf(bio_err,"-keyform arg key file format (PEM or ENGINE)\n");
252 BIO_printf(bio_err,"-signature file signature to verify\n");
253 BIO_printf(bio_err,"-sigopt nm:v signature parameter\n");
254 BIO_printf(bio_err,"-binary output in binary form\n");
255 BIO_printf(bio_err,"-hmac key create hashed MAC with key\n");
256 #ifndef OPENSSL_NO_ENGINE
257 BIO_printf(bio_err,"-engine e use engine e, possibly a hardware device.\n");
258 #endif
259
260 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm (default)\n",
261 LN_md5,LN_md5);
262 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
263 LN_md4,LN_md4);
264 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
265 LN_md2,LN_md2);
266 #ifndef OPENSSL_NO_SHA
267 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
268 LN_sha1,LN_sha1);
269 #ifndef OPENSSL_NO_SHA256
270 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
271 LN_sha224,LN_sha224);
272 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
273 LN_sha256,LN_sha256);
274 #endif
275 #ifndef OPENSSL_NO_SHA512
276 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
277 LN_sha384,LN_sha384);
278 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
279 LN_sha512,LN_sha512);
280 #endif
281 #endif
282 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
283 LN_mdc2,LN_mdc2);
284 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
285 LN_ripemd160,LN_ripemd160);
286 #ifndef OPENSSL_NO_WHIRLPOOL
287 BIO_printf(bio_err,"-%-14s to use the %s message digest algorithm\n",
288 SN_whirlpool,SN_whirlpool);
289 #endif
290 goto end;
291 }
292
293 in=BIO_new(BIO_s_file());
294 bmd=BIO_new(BIO_f_md());
295 if (debug)
296 {
297 BIO_set_callback(in,BIO_debug_callback);
298 /* needed for windows 3.1 */
299 BIO_set_callback_arg(in,(char *)bio_err);
300 }
301
302 if(!app_passwd(bio_err, passargin, NULL, &passin, NULL))
303 {
304 BIO_printf(bio_err, "Error getting password\n");
305 goto end;
306 }
307
308 if ((in == NULL) || (bmd == NULL))
309 {
310 ERR_print_errors(bio_err);
311 goto end;
312 }
313
314 if(out_bin == -1) {
315 if(keyfile)
316 out_bin = 1;
317 else
318 out_bin = 0;
319 }
320
321 if(randfile)
322 app_RAND_load_file(randfile, bio_err, 0);
323
324 if(outfile) {
325 if(out_bin)
326 out = BIO_new_file(outfile, "wb");
327 else out = BIO_new_file(outfile, "w");
328 } else {
329 out = BIO_new_fp(stdout, BIO_NOCLOSE);
330 #ifdef OPENSSL_SYS_VMS
331 {
332 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
333 out = BIO_push(tmpbio, out);
334 }
335 #endif
336 }
337
338 if(!out) {
339 BIO_printf(bio_err, "Error opening output file %s\n",
340 outfile ? outfile : "(stdout)");
341 ERR_print_errors(bio_err);
342 goto end;
343 }
344 if ((!!mac_name + !!keyfile + !!hmac_key) > 1)
345 {
346 BIO_printf(bio_err, "MAC and Signing key cannot both be specified\n");
347 goto end;
348 }
349
350 if(keyfile)
351 {
352 if (want_pub)
353 sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL,
354 e, "key file");
355 else
356 sigkey = load_key(bio_err, keyfile, keyform, 0, passin,
357 e, "key file");
358 if (!sigkey)
359 {
360 /* load_[pub]key() has already printed an appropriate
361 message */
362 goto end;
363 }
364 }
365
366 if (mac_name)
367 {
368 EVP_PKEY_CTX *mac_ctx = NULL;
369 int r = 0;
370 if (!init_gen_str(bio_err, &mac_ctx, mac_name,e, 0))
371 goto mac_end;
372 if (macopts)
373 {
374 char *macopt;
375 for (i = 0; i < sk_num(macopts); i++)
376 {
377 macopt = sk_value(macopts, i);
378 if (pkey_ctrl_string(mac_ctx, macopt) <= 0)
379 {
380 BIO_printf(bio_err,
381 "MAC parameter error \"%s\"\n",
382 macopt);
383 ERR_print_errors(bio_err);
384 goto mac_end;
385 }
386 }
387 }
388 if (EVP_PKEY_keygen(mac_ctx, &sigkey) <= 0)
389 {
390 BIO_puts(bio_err, "Error generating key\n");
391 ERR_print_errors(bio_err);
392 goto mac_end;
393 }
394 r = 1;
395 mac_end:
396 if (mac_ctx)
397 EVP_PKEY_CTX_free(mac_ctx);
398 if (r == 0)
399 goto end;
400 }
401
402 if (hmac_key)
403 {
404 sigkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, e,
405 (unsigned char *)hmac_key, -1);
406 if (!sigkey)
407 goto end;
408 }
409
410 if (sigkey)
411 {
412 EVP_MD_CTX *mctx = NULL;
413 EVP_PKEY_CTX *pctx = NULL;
414 int r;
415 if (!BIO_get_md_ctx(bmd, &mctx))
416 {
417 BIO_printf(bio_err, "Error getting context\n");
418 ERR_print_errors(bio_err);
419 goto end;
420 }
421 if (do_verify)
422 r = EVP_DigestVerifyInit(mctx, &pctx, md, e, sigkey);
423 else
424 r = EVP_DigestSignInit(mctx, &pctx, md, e, sigkey);
425 if (!r)
426 {
427 BIO_printf(bio_err, "Error setting context\n");
428 ERR_print_errors(bio_err);
429 goto end;
430 }
431 if (sigopts)
432 {
433 char *sigopt;
434 for (i = 0; i < sk_num(sigopts); i++)
435 {
436 sigopt = sk_value(sigopts, i);
437 if (pkey_ctrl_string(pctx, sigopt) <= 0)
438 {
439 BIO_printf(bio_err,
440 "parameter error \"%s\"\n",
441 sigopt);
442 ERR_print_errors(bio_err);
443 goto end;
444 }
445 }
446 }
447 }
448 /* we use md as a filter, reading from 'in' */
449 else
450 {
451 if (md == NULL)
452 md = EVP_md5();
453 if (!BIO_set_md(bmd,md))
454 {
455 BIO_printf(bio_err, "Error setting digest %s\n", pname);
456 ERR_print_errors(bio_err);
457 goto end;
458 }
459 }
460
461 if(sigfile && sigkey) {
462 BIO *sigbio;
463 sigbio = BIO_new_file(sigfile, "rb");
464 siglen = EVP_PKEY_size(sigkey);
465 sigbuf = OPENSSL_malloc(siglen);
466 if(!sigbio) {
467 BIO_printf(bio_err, "Error opening signature file %s\n",
468 sigfile);
469 ERR_print_errors(bio_err);
470 goto end;
471 }
472 siglen = BIO_read(sigbio, sigbuf, siglen);
473 BIO_free(sigbio);
474 if(siglen <= 0) {
475 BIO_printf(bio_err, "Error reading signature file %s\n",
476 sigfile);
477 ERR_print_errors(bio_err);
478 goto end;
479 }
480 }
481 inp=BIO_push(bmd,in);
482
483 if (md == NULL)
484 {
485 EVP_MD_CTX *tctx;
486 BIO_get_md_ctx(bmd, &tctx);
487 md = EVP_MD_CTX_md(tctx);
488 }
489
490 if (argc == 0)
491 {
492 BIO_set_fp(in,stdin,BIO_NOCLOSE);
493 err=do_fp(out, buf,inp,separator, out_bin, sigkey, sigbuf,
494 siglen,NULL,NULL,"stdin",bmd);
495 }
496 else
497 {
498 const char *md_name = NULL, *sig_name = NULL;
499 if(!out_bin)
500 {
501 if (sigkey)
502 {
503 const EVP_PKEY_ASN1_METHOD *ameth;
504 ameth = EVP_PKEY_get0_asn1(sigkey);
505 if (ameth)
506 EVP_PKEY_asn1_get0_info(NULL, NULL,
507 NULL, NULL, &sig_name, ameth);
508 }
509 md_name = EVP_MD_name(md);
510 }
511 err = 0;
512 for (i=0; i<argc; i++)
513 {
514 int r;
515 if (BIO_read_filename(in,argv[i]) <= 0)
516 {
517 perror(argv[i]);
518 err++;
519 continue;
520 }
521 else
522 r=do_fp(out,buf,inp,separator,out_bin,sigkey,sigbuf,
523 siglen,sig_name,md_name, argv[i],bmd);
524 if(r)
525 err=r;
526 (void)BIO_reset(bmd);
527 }
528 }
529 end:
530 if (buf != NULL)
531 {
532 OPENSSL_cleanse(buf,BUFSIZE);
533 OPENSSL_free(buf);
534 }
535 if (in != NULL) BIO_free(in);
536 if (passin)
537 OPENSSL_free(passin);
538 BIO_free_all(out);
539 EVP_PKEY_free(sigkey);
540 if (sigopts)
541 sk_free(sigopts);
542 if (macopts)
543 sk_free(macopts);
544 if(sigbuf) OPENSSL_free(sigbuf);
545 if (bmd != NULL) BIO_free(bmd);
546 apps_shutdown();
547 OPENSSL_EXIT(err);
548 }
549
550 int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout,
551 EVP_PKEY *key, unsigned char *sigin, int siglen,
552 const char *sig_name, const char *md_name,
553 const char *file,BIO *bmd)
554 {
555 size_t len;
556 int i;
557
558 for (;;)
559 {
560 i=BIO_read(bp,(char *)buf,BUFSIZE);
561 if(i < 0)
562 {
563 BIO_printf(bio_err, "Read Error in %s\n",file);
564 ERR_print_errors(bio_err);
565 return 1;
566 }
567 if (i == 0) break;
568 }
569 if(sigin)
570 {
571 EVP_MD_CTX *ctx;
572 BIO_get_md_ctx(bp, &ctx);
573 i = EVP_DigestVerifyFinal(ctx, sigin, (unsigned int)siglen);
574 if(i > 0)
575 BIO_printf(out, "Verified OK\n");
576 else if(i == 0)
577 {
578 BIO_printf(out, "Verification Failure\n");
579 return 1;
580 }
581 else
582 {
583 BIO_printf(bio_err, "Error Verifying Data\n");
584 ERR_print_errors(bio_err);
585 return 1;
586 }
587 return 0;
588 }
589 if(key)
590 {
591 EVP_MD_CTX *ctx;
592 BIO_get_md_ctx(bp, &ctx);
593 len = BUFSIZE;
594 if(!EVP_DigestSignFinal(ctx, buf, &len))
595 {
596 BIO_printf(bio_err, "Error Signing Data\n");
597 ERR_print_errors(bio_err);
598 return 1;
599 }
600 }
601 else
602 len=BIO_gets(bp,(char *)buf,BUFSIZE);
603
604 if(binout) BIO_write(out, buf, len);
605 else
606 {
607 if (sig_name)
608 BIO_printf(out, "%s-%s(%s)= ", sig_name, md_name, file);
609 else if (md_name)
610 BIO_printf(out, "%s(%s)= ", md_name, file);
611 else
612 BIO_printf(out, "(%s)= ", file);
613 for (i=0; i<(int)len; i++)
614 {
615 if (sep && (i != 0))
616 BIO_printf(out, ":");
617 BIO_printf(out, "%02x",buf[i]);
618 }
619 BIO_printf(out, "\n");
620 }
621 return 0;
622 }
623