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
70 #undef BUFSIZE
71 #define BUFSIZE 1024*8
72
73 #undef PROG
74 #define PROG dgst_main
75
76 int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout,
77 EVP_PKEY *key, unsigned char *sigin, int siglen, const char *title,
78 const char *file);
79
80 int MAIN(int, char **);
81
MAIN(int argc,char ** argv)82 int MAIN(int argc, char **argv)
83 {
84 ENGINE *e = NULL;
85 unsigned char *buf=NULL;
86 int i,err=0;
87 const EVP_MD *md=NULL,*m;
88 BIO *in=NULL,*inp;
89 BIO *bmd=NULL;
90 BIO *out = NULL;
91 const char *name;
92 #define PROG_NAME_SIZE 39
93 char pname[PROG_NAME_SIZE+1];
94 int separator=0;
95 int debug=0;
96 int keyform=FORMAT_PEM;
97 const char *outfile = NULL, *keyfile = NULL;
98 const char *sigfile = NULL, *randfile = NULL;
99 int out_bin = -1, want_pub = 0, do_verify = 0;
100 EVP_PKEY *sigkey = NULL;
101 unsigned char *sigbuf = NULL;
102 int siglen = 0;
103 char *passargin = NULL, *passin = NULL;
104 #ifndef OPENSSL_NO_ENGINE
105 char *engine=NULL;
106 #endif
107
108 apps_startup();
109
110 if ((buf=(unsigned char *)OPENSSL_malloc(BUFSIZE)) == NULL)
111 {
112 BIO_printf(bio_err,"out of memory\n");
113 goto end;
114 }
115 if (bio_err == NULL)
116 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
117 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
118
119 if (!load_config(bio_err, NULL))
120 goto end;
121
122 /* first check the program name */
123 program_name(argv[0],pname,sizeof pname);
124
125 md=EVP_get_digestbyname(pname);
126
127 argc--;
128 argv++;
129 while (argc > 0)
130 {
131 if ((*argv)[0] != '-') break;
132 if (strcmp(*argv,"-c") == 0)
133 separator=1;
134 else if (strcmp(*argv,"-rand") == 0)
135 {
136 if (--argc < 1) break;
137 randfile=*(++argv);
138 }
139 else if (strcmp(*argv,"-out") == 0)
140 {
141 if (--argc < 1) break;
142 outfile=*(++argv);
143 }
144 else if (strcmp(*argv,"-sign") == 0)
145 {
146 if (--argc < 1) break;
147 keyfile=*(++argv);
148 }
149 else if (!strcmp(*argv,"-passin"))
150 {
151 if (--argc < 1)
152 break;
153 passargin=*++argv;
154 }
155 else if (strcmp(*argv,"-verify") == 0)
156 {
157 if (--argc < 1) break;
158 keyfile=*(++argv);
159 want_pub = 1;
160 do_verify = 1;
161 }
162 else if (strcmp(*argv,"-prverify") == 0)
163 {
164 if (--argc < 1) break;
165 keyfile=*(++argv);
166 do_verify = 1;
167 }
168 else if (strcmp(*argv,"-signature") == 0)
169 {
170 if (--argc < 1) break;
171 sigfile=*(++argv);
172 }
173 else if (strcmp(*argv,"-keyform") == 0)
174 {
175 if (--argc < 1) break;
176 keyform=str2fmt(*(++argv));
177 }
178 #ifndef OPENSSL_NO_ENGINE
179 else if (strcmp(*argv,"-engine") == 0)
180 {
181 if (--argc < 1) break;
182 engine= *(++argv);
183 }
184 #endif
185 else if (strcmp(*argv,"-hex") == 0)
186 out_bin = 0;
187 else if (strcmp(*argv,"-binary") == 0)
188 out_bin = 1;
189 else if (strcmp(*argv,"-d") == 0)
190 debug=1;
191 else if ((m=EVP_get_digestbyname(&((*argv)[1]))) != NULL)
192 md=m;
193 else
194 break;
195 argc--;
196 argv++;
197 }
198
199 if (md == NULL)
200 md=EVP_md5();
201
202 if(do_verify && !sigfile) {
203 BIO_printf(bio_err, "No signature to verify: use the -signature option\n");
204 err = 1;
205 goto end;
206 }
207
208 if ((argc > 0) && (argv[0][0] == '-')) /* bad option */
209 {
210 BIO_printf(bio_err,"unknown option '%s'\n",*argv);
211 BIO_printf(bio_err,"options are\n");
212 BIO_printf(bio_err,"-c to output the digest with separating colons\n");
213 BIO_printf(bio_err,"-d to output debug info\n");
214 BIO_printf(bio_err,"-hex output as hex dump\n");
215 BIO_printf(bio_err,"-binary output in binary form\n");
216 BIO_printf(bio_err,"-sign file sign digest using private key in file\n");
217 BIO_printf(bio_err,"-verify file verify a signature using public key in file\n");
218 BIO_printf(bio_err,"-prverify file verify a signature using private key in file\n");
219 BIO_printf(bio_err,"-keyform arg key file format (PEM or ENGINE)\n");
220 BIO_printf(bio_err,"-signature file signature to verify\n");
221 BIO_printf(bio_err,"-binary output in binary form\n");
222 #ifndef OPENSSL_NO_ENGINE
223 BIO_printf(bio_err,"-engine e use engine e, possibly a hardware device.\n");
224 #endif
225
226 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm (default)\n",
227 LN_md5,LN_md5);
228 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
229 LN_md4,LN_md4);
230 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
231 LN_md2,LN_md2);
232 #ifndef OPENSSL_NO_SHA
233 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
234 LN_sha1,LN_sha1);
235 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
236 LN_sha,LN_sha);
237 #ifndef OPENSSL_NO_SHA256
238 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
239 LN_sha256,LN_sha256);
240 #endif
241 #ifndef OPENSSL_NO_SHA512
242 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
243 LN_sha512,LN_sha512);
244 #endif
245 #endif
246 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
247 LN_mdc2,LN_mdc2);
248 BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
249 LN_ripemd160,LN_ripemd160);
250 err=1;
251 goto end;
252 }
253
254 #ifndef OPENSSL_NO_ENGINE
255 e = setup_engine(bio_err, engine, 0);
256 #endif
257
258 in=BIO_new(BIO_s_file());
259 bmd=BIO_new(BIO_f_md());
260 if (debug)
261 {
262 BIO_set_callback(in,BIO_debug_callback);
263 /* needed for windows 3.1 */
264 BIO_set_callback_arg(in,bio_err);
265 }
266
267 if(!app_passwd(bio_err, passargin, NULL, &passin, NULL))
268 {
269 BIO_printf(bio_err, "Error getting password\n");
270 goto end;
271 }
272
273 if ((in == NULL) || (bmd == NULL))
274 {
275 ERR_print_errors(bio_err);
276 goto end;
277 }
278
279 if(out_bin == -1) {
280 if(keyfile) out_bin = 1;
281 else out_bin = 0;
282 }
283
284 if(randfile)
285 app_RAND_load_file(randfile, bio_err, 0);
286
287 if(outfile) {
288 if(out_bin)
289 out = BIO_new_file(outfile, "wb");
290 else out = BIO_new_file(outfile, "w");
291 } else {
292 out = BIO_new_fp(stdout, BIO_NOCLOSE);
293 #ifdef OPENSSL_SYS_VMS
294 {
295 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
296 out = BIO_push(tmpbio, out);
297 }
298 #endif
299 }
300
301 if(!out) {
302 BIO_printf(bio_err, "Error opening output file %s\n",
303 outfile ? outfile : "(stdout)");
304 ERR_print_errors(bio_err);
305 goto end;
306 }
307
308 if(keyfile)
309 {
310 if (want_pub)
311 sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL,
312 e, "key file");
313 else
314 sigkey = load_key(bio_err, keyfile, keyform, 0, passin,
315 e, "key file");
316 if (!sigkey)
317 {
318 /* load_[pub]key() has already printed an appropriate
319 message */
320 goto end;
321 }
322 }
323
324 if(sigfile && sigkey) {
325 BIO *sigbio;
326 sigbio = BIO_new_file(sigfile, "rb");
327 siglen = EVP_PKEY_size(sigkey);
328 sigbuf = OPENSSL_malloc(siglen);
329 if(!sigbio) {
330 BIO_printf(bio_err, "Error opening signature file %s\n",
331 sigfile);
332 ERR_print_errors(bio_err);
333 goto end;
334 }
335 siglen = BIO_read(sigbio, sigbuf, siglen);
336 BIO_free(sigbio);
337 if(siglen <= 0) {
338 BIO_printf(bio_err, "Error reading signature file %s\n",
339 sigfile);
340 ERR_print_errors(bio_err);
341 goto end;
342 }
343 }
344
345
346
347 /* we use md as a filter, reading from 'in' */
348 if (!BIO_set_md(bmd,md))
349 {
350 BIO_printf(bio_err, "Error setting digest %s\n", pname);
351 ERR_print_errors(bio_err);
352 goto end;
353 }
354
355 inp=BIO_push(bmd,in);
356
357 if (argc == 0)
358 {
359 BIO_set_fp(in,stdin,BIO_NOCLOSE);
360 err=do_fp(out, buf,inp,separator, out_bin, sigkey, sigbuf,
361 siglen,"","(stdin)");
362 }
363 else
364 {
365 name=OBJ_nid2sn(md->type);
366 for (i=0; i<argc; i++)
367 {
368 char *tmp,*tofree=NULL;
369 int r;
370
371 if (BIO_read_filename(in,argv[i]) <= 0)
372 {
373 perror(argv[i]);
374 err++;
375 continue;
376 }
377 if(!out_bin)
378 {
379 size_t len = strlen(name)+strlen(argv[i])+5;
380 tmp=tofree=OPENSSL_malloc(len);
381 BIO_snprintf(tmp,len,"%s(%s)= ",name,argv[i]);
382 }
383 else
384 tmp="";
385 r=do_fp(out,buf,inp,separator,out_bin,sigkey,sigbuf,
386 siglen,tmp,argv[i]);
387 if(r)
388 err=r;
389 if(tofree)
390 OPENSSL_free(tofree);
391 (void)BIO_reset(bmd);
392 }
393 }
394 end:
395 if (buf != NULL)
396 {
397 OPENSSL_cleanse(buf,BUFSIZE);
398 OPENSSL_free(buf);
399 }
400 if (in != NULL) BIO_free(in);
401 if (passin)
402 OPENSSL_free(passin);
403 BIO_free_all(out);
404 EVP_PKEY_free(sigkey);
405 if(sigbuf) OPENSSL_free(sigbuf);
406 if (bmd != NULL) BIO_free(bmd);
407 apps_shutdown();
408 OPENSSL_EXIT(err);
409 }
410
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)411 int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout,
412 EVP_PKEY *key, unsigned char *sigin, int siglen, const char *title,
413 const char *file)
414 {
415 int len;
416 int i;
417
418 for (;;)
419 {
420 i=BIO_read(bp,(char *)buf,BUFSIZE);
421 if(i < 0)
422 {
423 BIO_printf(bio_err, "Read Error in %s\n",file);
424 ERR_print_errors(bio_err);
425 return 1;
426 }
427 if (i == 0) break;
428 }
429 if(sigin)
430 {
431 EVP_MD_CTX *ctx;
432 BIO_get_md_ctx(bp, &ctx);
433 i = EVP_VerifyFinal(ctx, sigin, (unsigned int)siglen, key);
434 if(i > 0)
435 BIO_printf(out, "Verified OK\n");
436 else if(i == 0)
437 {
438 BIO_printf(out, "Verification Failure\n");
439 return 1;
440 }
441 else
442 {
443 BIO_printf(bio_err, "Error Verifying Data\n");
444 ERR_print_errors(bio_err);
445 return 1;
446 }
447 return 0;
448 }
449 if(key)
450 {
451 EVP_MD_CTX *ctx;
452 BIO_get_md_ctx(bp, &ctx);
453 if(!EVP_SignFinal(ctx, buf, (unsigned int *)&len, key))
454 {
455 BIO_printf(bio_err, "Error Signing Data\n");
456 ERR_print_errors(bio_err);
457 return 1;
458 }
459 }
460 else
461 len=BIO_gets(bp,(char *)buf,BUFSIZE);
462
463 if(binout) BIO_write(out, buf, len);
464 else
465 {
466 BIO_write(out,title,strlen(title));
467 for (i=0; i<len; i++)
468 {
469 if (sep && (i != 0))
470 BIO_printf(out, ":");
471 BIO_printf(out, "%02x",buf[i]);
472 }
473 BIO_printf(out, "\n");
474 }
475 return 0;
476 }
477
478