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