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Import OpenSSL-0.9.8i.
[dragonfly.git] / crypto / openssl-0.9.7e / apps / smime.c
blob51bc893ffa8ab3e4da3b4e195fe182ac282cde65
1 /* smime.c */
2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
3 * project 1999.
4 */
5 /* ====================================================================
6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58
59 /* S/MIME utility function */
60
61 #include <stdio.h>
62 #include <string.h>
63 #include "apps.h"
64 #include <openssl/crypto.h>
65 #include <openssl/pem.h>
66 #include <openssl/err.h>
67
68 #undef PROG
69 #define PROG smime_main
70 static int save_certs(char *signerfile, STACK_OF(X509) *signers);
71
72 #define SMIME_OP 0x10
73 #define SMIME_ENCRYPT (1 | SMIME_OP)
74 #define SMIME_DECRYPT 2
75 #define SMIME_SIGN (3 | SMIME_OP)
76 #define SMIME_VERIFY 4
77 #define SMIME_PK7OUT 5
78
79 int MAIN(int, char **);
80
81 int MAIN(int argc, char **argv)
82 {
83 ENGINE *e = NULL;
84 int operation = 0;
85 int ret = 0;
86 char **args;
87 char *inmode = "r", *outmode = "w";
88 char *infile = NULL, *outfile = NULL;
89 char *signerfile = NULL, *recipfile = NULL;
90 char *certfile = NULL, *keyfile = NULL, *contfile=NULL;
91 const EVP_CIPHER *cipher = NULL;
92 PKCS7 *p7 = NULL;
93 X509_STORE *store = NULL;
94 X509 *cert = NULL, *recip = NULL, *signer = NULL;
95 EVP_PKEY *key = NULL;
96 STACK_OF(X509) *encerts = NULL, *other = NULL;
97 BIO *in = NULL, *out = NULL, *indata = NULL;
98 int badarg = 0;
99 int flags = PKCS7_DETACHED, store_flags = 0;
100 char *to = NULL, *from = NULL, *subject = NULL;
101 char *CAfile = NULL, *CApath = NULL;
102 char *passargin = NULL, *passin = NULL;
103 char *inrand = NULL;
104 int need_rand = 0;
105 int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
106 int keyform = FORMAT_PEM;
107 #ifndef OPENSSL_NO_ENGINE
108 char *engine=NULL;
109 #endif
110
111 args = argv + 1;
112 ret = 1;
113
114 apps_startup();
115
116 if (bio_err == NULL)
117 if ((bio_err = BIO_new(BIO_s_file())) != NULL)
118 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE|BIO_FP_TEXT);
119
120 if (!load_config(bio_err, NULL))
121 goto end;
122
123 while (!badarg && *args && *args[0] == '-') {
124 if (!strcmp (*args, "-encrypt")) operation = SMIME_ENCRYPT;
125 else if (!strcmp (*args, "-decrypt")) operation = SMIME_DECRYPT;
126 else if (!strcmp (*args, "-sign")) operation = SMIME_SIGN;
127 else if (!strcmp (*args, "-verify")) operation = SMIME_VERIFY;
128 else if (!strcmp (*args, "-pk7out")) operation = SMIME_PK7OUT;
129 #ifndef OPENSSL_NO_DES
130 else if (!strcmp (*args, "-des3"))
131 cipher = EVP_des_ede3_cbc();
132 else if (!strcmp (*args, "-des"))
133 cipher = EVP_des_cbc();
134 #endif
135 #ifndef OPENSSL_NO_RC2
136 else if (!strcmp (*args, "-rc2-40"))
137 cipher = EVP_rc2_40_cbc();
138 else if (!strcmp (*args, "-rc2-128"))
139 cipher = EVP_rc2_cbc();
140 else if (!strcmp (*args, "-rc2-64"))
141 cipher = EVP_rc2_64_cbc();
142 #endif
143 #ifndef OPENSSL_NO_AES
144 else if (!strcmp(*args,"-aes128"))
145 cipher = EVP_aes_128_cbc();
146 else if (!strcmp(*args,"-aes192"))
147 cipher = EVP_aes_192_cbc();
148 else if (!strcmp(*args,"-aes256"))
149 cipher = EVP_aes_256_cbc();
150 #endif
151 else if (!strcmp (*args, "-text"))
152 flags |= PKCS7_TEXT;
153 else if (!strcmp (*args, "-nointern"))
154 flags |= PKCS7_NOINTERN;
155 else if (!strcmp (*args, "-noverify"))
156 flags |= PKCS7_NOVERIFY;
157 else if (!strcmp (*args, "-nochain"))
158 flags |= PKCS7_NOCHAIN;
159 else if (!strcmp (*args, "-nocerts"))
160 flags |= PKCS7_NOCERTS;
161 else if (!strcmp (*args, "-noattr"))
162 flags |= PKCS7_NOATTR;
163 else if (!strcmp (*args, "-nodetach"))
164 flags &= ~PKCS7_DETACHED;
165 else if (!strcmp (*args, "-nosmimecap"))
166 flags |= PKCS7_NOSMIMECAP;
167 else if (!strcmp (*args, "-binary"))
168 flags |= PKCS7_BINARY;
169 else if (!strcmp (*args, "-nosigs"))
170 flags |= PKCS7_NOSIGS;
171 else if (!strcmp (*args, "-nooldmime"))
172 flags |= PKCS7_NOOLDMIMETYPE;
173 else if (!strcmp (*args, "-crlfeol"))
174 flags |= PKCS7_CRLFEOL;
175 else if (!strcmp (*args, "-crl_check"))
176 store_flags |= X509_V_FLAG_CRL_CHECK;
177 else if (!strcmp (*args, "-crl_check_all"))
178 store_flags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
179 else if (!strcmp(*args,"-rand")) {
180 if (args[1]) {
181 args++;
182 inrand = *args;
183 } else badarg = 1;
184 need_rand = 1;
185 #ifndef OPENSSL_NO_ENGINE
186 } else if (!strcmp(*args,"-engine")) {
187 if (args[1]) {
188 args++;
189 engine = *args;
190 } else badarg = 1;
191 #endif
192 } else if (!strcmp(*args,"-passin")) {
193 if (args[1]) {
194 args++;
195 passargin = *args;
196 } else badarg = 1;
197 } else if (!strcmp (*args, "-to")) {
198 if (args[1]) {
199 args++;
200 to = *args;
201 } else badarg = 1;
202 } else if (!strcmp (*args, "-from")) {
203 if (args[1]) {
204 args++;
205 from = *args;
206 } else badarg = 1;
207 } else if (!strcmp (*args, "-subject")) {
208 if (args[1]) {
209 args++;
210 subject = *args;
211 } else badarg = 1;
212 } else if (!strcmp (*args, "-signer")) {
213 if (args[1]) {
214 args++;
215 signerfile = *args;
216 } else badarg = 1;
217 } else if (!strcmp (*args, "-recip")) {
218 if (args[1]) {
219 args++;
220 recipfile = *args;
221 } else badarg = 1;
222 } else if (!strcmp (*args, "-inkey")) {
223 if (args[1]) {
224 args++;
225 keyfile = *args;
226 } else badarg = 1;
227 } else if (!strcmp (*args, "-keyform")) {
228 if (args[1]) {
229 args++;
230 keyform = str2fmt(*args);
231 } else badarg = 1;
232 } else if (!strcmp (*args, "-certfile")) {
233 if (args[1]) {
234 args++;
235 certfile = *args;
236 } else badarg = 1;
237 } else if (!strcmp (*args, "-CAfile")) {
238 if (args[1]) {
239 args++;
240 CAfile = *args;
241 } else badarg = 1;
242 } else if (!strcmp (*args, "-CApath")) {
243 if (args[1]) {
244 args++;
245 CApath = *args;
246 } else badarg = 1;
247 } else if (!strcmp (*args, "-in")) {
248 if (args[1]) {
249 args++;
250 infile = *args;
251 } else badarg = 1;
252 } else if (!strcmp (*args, "-inform")) {
253 if (args[1]) {
254 args++;
255 informat = str2fmt(*args);
256 } else badarg = 1;
257 } else if (!strcmp (*args, "-outform")) {
258 if (args[1]) {
259 args++;
260 outformat = str2fmt(*args);
261 } else badarg = 1;
262 } else if (!strcmp (*args, "-out")) {
263 if (args[1]) {
264 args++;
265 outfile = *args;
266 } else badarg = 1;
267 } else if (!strcmp (*args, "-content")) {
268 if (args[1]) {
269 args++;
270 contfile = *args;
271 } else badarg = 1;
272 } else badarg = 1;
273 args++;
274 }
275
276 if(operation == SMIME_SIGN) {
277 if(!signerfile) {
278 BIO_printf(bio_err, "No signer certificate specified\n");
279 badarg = 1;
280 }
281 need_rand = 1;
282 } else if(operation == SMIME_DECRYPT) {
283 if(!recipfile) {
284 BIO_printf(bio_err, "No recipient certificate and key specified\n");
285 badarg = 1;
286 }
287 } else if(operation == SMIME_ENCRYPT) {
288 if(!*args) {
289 BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
290 badarg = 1;
291 }
292 need_rand = 1;
293 } else if(!operation) badarg = 1;
294
295 if (badarg) {
296 BIO_printf (bio_err, "Usage smime [options] cert.pem ...\n");
297 BIO_printf (bio_err, "where options are\n");
298 BIO_printf (bio_err, "-encrypt encrypt message\n");
299 BIO_printf (bio_err, "-decrypt decrypt encrypted message\n");
300 BIO_printf (bio_err, "-sign sign message\n");
301 BIO_printf (bio_err, "-verify verify signed message\n");
302 BIO_printf (bio_err, "-pk7out output PKCS#7 structure\n");
303 #ifndef OPENSSL_NO_DES
304 BIO_printf (bio_err, "-des3 encrypt with triple DES\n");
305 BIO_printf (bio_err, "-des encrypt with DES\n");
306 #endif
307 #ifndef OPENSSL_NO_RC2
308 BIO_printf (bio_err, "-rc2-40 encrypt with RC2-40 (default)\n");
309 BIO_printf (bio_err, "-rc2-64 encrypt with RC2-64\n");
310 BIO_printf (bio_err, "-rc2-128 encrypt with RC2-128\n");
311 #endif
312 #ifndef OPENSSL_NO_AES
313 BIO_printf (bio_err, "-aes128, -aes192, -aes256\n");
314 BIO_printf (bio_err, " encrypt PEM output with cbc aes\n");
315 #endif
316 BIO_printf (bio_err, "-nointern don't search certificates in message for signer\n");
317 BIO_printf (bio_err, "-nosigs don't verify message signature\n");
318 BIO_printf (bio_err, "-noverify don't verify signers certificate\n");
319 BIO_printf (bio_err, "-nocerts don't include signers certificate when signing\n");
320 BIO_printf (bio_err, "-nodetach use opaque signing\n");
321 BIO_printf (bio_err, "-noattr don't include any signed attributes\n");
322 BIO_printf (bio_err, "-binary don't translate message to text\n");
323 BIO_printf (bio_err, "-certfile file other certificates file\n");
324 BIO_printf (bio_err, "-signer file signer certificate file\n");
325 BIO_printf (bio_err, "-recip file recipient certificate file for decryption\n");
326 BIO_printf (bio_err, "-in file input file\n");
327 BIO_printf (bio_err, "-inform arg input format SMIME (default), PEM or DER\n");
328 BIO_printf (bio_err, "-inkey file input private key (if not signer or recipient)\n");
329 BIO_printf (bio_err, "-keyform arg input private key format (PEM or ENGINE)\n");
330 BIO_printf (bio_err, "-out file output file\n");
331 BIO_printf (bio_err, "-outform arg output format SMIME (default), PEM or DER\n");
332 BIO_printf (bio_err, "-content file supply or override content for detached signature\n");
333 BIO_printf (bio_err, "-to addr to address\n");
334 BIO_printf (bio_err, "-from ad from address\n");
335 BIO_printf (bio_err, "-subject s subject\n");
336 BIO_printf (bio_err, "-text include or delete text MIME headers\n");
337 BIO_printf (bio_err, "-CApath dir trusted certificates directory\n");
338 BIO_printf (bio_err, "-CAfile file trusted certificates file\n");
339 BIO_printf (bio_err, "-crl_check check revocation status of signer's certificate using CRLs\n");
340 BIO_printf (bio_err, "-crl_check_all check revocation status of signer's certificate chain using CRLs\n");
341 #ifndef OPENSSL_NO_ENGINE
342 BIO_printf (bio_err, "-engine e use engine e, possibly a hardware device.\n");
343 #endif
344 BIO_printf (bio_err, "-passin arg input file pass phrase source\n");
345 BIO_printf(bio_err, "-rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
346 BIO_printf(bio_err, " load the file (or the files in the directory) into\n");
347 BIO_printf(bio_err, " the random number generator\n");
348 BIO_printf (bio_err, "cert.pem recipient certificate(s) for encryption\n");
349 goto end;
350 }
351
352 #ifndef OPENSSL_NO_ENGINE
353 e = setup_engine(bio_err, engine, 0);
354 #endif
355
356 if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
357 BIO_printf(bio_err, "Error getting password\n");
358 goto end;
359 }
360
361 if (need_rand) {
362 app_RAND_load_file(NULL, bio_err, (inrand != NULL));
363 if (inrand != NULL)
364 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
365 app_RAND_load_files(inrand));
366 }
367
368 ret = 2;
369
370 if(operation != SMIME_SIGN) flags &= ~PKCS7_DETACHED;
371
372 if(operation & SMIME_OP) {
373 if(flags & PKCS7_BINARY) inmode = "rb";
374 if(outformat == FORMAT_ASN1) outmode = "wb";
375 } else {
376 if(flags & PKCS7_BINARY) outmode = "wb";
377 if(informat == FORMAT_ASN1) inmode = "rb";
378 }
379
380 if(operation == SMIME_ENCRYPT) {
381 if (!cipher) {
382 #ifndef OPENSSL_NO_RC2
383 cipher = EVP_rc2_40_cbc();
384 #else
385 BIO_printf(bio_err, "No cipher selected\n");
386 goto end;
387 #endif
388 }
389 encerts = sk_X509_new_null();
390 while (*args) {
391 if(!(cert = load_cert(bio_err,*args,FORMAT_PEM,
392 NULL, e, "recipient certificate file"))) {
393 #if 0 /* An appropriate message is already printed */
394 BIO_printf(bio_err, "Can't read recipient certificate file %s\n", *args);
395 #endif
396 goto end;
397 }
398 sk_X509_push(encerts, cert);
399 cert = NULL;
400 args++;
401 }
402 }
403
404 if(signerfile && (operation == SMIME_SIGN)) {
405 if(!(signer = load_cert(bio_err,signerfile,FORMAT_PEM, NULL,
406 e, "signer certificate"))) {
407 #if 0 /* An appropri message has already been printed */
408 BIO_printf(bio_err, "Can't read signer certificate file %s\n", signerfile);
409 #endif
410 goto end;
411 }
412 }
413
414 if(certfile) {
415 if(!(other = load_certs(bio_err,certfile,FORMAT_PEM, NULL,
416 e, "certificate file"))) {
417 #if 0 /* An appropriate message has already been printed */
418 BIO_printf(bio_err, "Can't read certificate file %s\n", certfile);
419 #endif
420 ERR_print_errors(bio_err);
421 goto end;
422 }
423 }
424
425 if(recipfile && (operation == SMIME_DECRYPT)) {
426 if(!(recip = load_cert(bio_err,recipfile,FORMAT_PEM,NULL,
427 e, "recipient certificate file"))) {
428 #if 0 /* An appropriate message has alrady been printed */
429 BIO_printf(bio_err, "Can't read recipient certificate file %s\n", recipfile);
430 #endif
431 ERR_print_errors(bio_err);
432 goto end;
433 }
434 }
435
436 if(operation == SMIME_DECRYPT) {
437 if(!keyfile) keyfile = recipfile;
438 } else if(operation == SMIME_SIGN) {
439 if(!keyfile) keyfile = signerfile;
440 } else keyfile = NULL;
441
442 if(keyfile) {
443 key = load_key(bio_err, keyfile, keyform, 0, passin, e,
444 "signing key file");
445 if (!key) {
446 goto end;
447 }
448 }
449
450 if (infile) {
451 if (!(in = BIO_new_file(infile, inmode))) {
452 BIO_printf (bio_err,
453 "Can't open input file %s\n", infile);
454 goto end;
455 }
456 } else in = BIO_new_fp(stdin, BIO_NOCLOSE);
457
458 if (outfile) {
459 if (!(out = BIO_new_file(outfile, outmode))) {
460 BIO_printf (bio_err,
461 "Can't open output file %s\n", outfile);
462 goto end;
463 }
464 } else {
465 out = BIO_new_fp(stdout, BIO_NOCLOSE);
466 #ifdef OPENSSL_SYS_VMS
467 {
468 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
469 out = BIO_push(tmpbio, out);
470 }
471 #endif
472 }
473
474 if(operation == SMIME_VERIFY) {
475 if(!(store = setup_verify(bio_err, CAfile, CApath))) goto end;
476 X509_STORE_set_flags(store, store_flags);
477 }
478
479
480 ret = 3;
481
482 if(operation == SMIME_ENCRYPT) {
483 p7 = PKCS7_encrypt(encerts, in, cipher, flags);
484 } else if(operation == SMIME_SIGN) {
485 p7 = PKCS7_sign(signer, key, other, in, flags);
486 if (BIO_reset(in) != 0 && (flags & PKCS7_DETACHED)) {
487 BIO_printf(bio_err, "Can't rewind input file\n");
488 goto end;
489 }
490 } else {
491 if(informat == FORMAT_SMIME)
492 p7 = SMIME_read_PKCS7(in, &indata);
493 else if(informat == FORMAT_PEM)
494 p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
495 else if(informat == FORMAT_ASN1)
496 p7 = d2i_PKCS7_bio(in, NULL);
497 else {
498 BIO_printf(bio_err, "Bad input format for PKCS#7 file\n");
499 goto end;
500 }
501
502 if(!p7) {
503 BIO_printf(bio_err, "Error reading S/MIME message\n");
504 goto end;
505 }
506 if(contfile) {
507 BIO_free(indata);
508 if(!(indata = BIO_new_file(contfile, "rb"))) {
509 BIO_printf(bio_err, "Can't read content file %s\n", contfile);
510 goto end;
511 }
512 }
513 }
514
515 if(!p7) {
516 BIO_printf(bio_err, "Error creating PKCS#7 structure\n");
517 goto end;
518 }
519
520 ret = 4;
521 if(operation == SMIME_DECRYPT) {
522 if(!PKCS7_decrypt(p7, key, recip, out, flags)) {
523 BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n");
524 goto end;
525 }
526 } else if(operation == SMIME_VERIFY) {
527 STACK_OF(X509) *signers;
528 if(PKCS7_verify(p7, other, store, indata, out, flags)) {
529 BIO_printf(bio_err, "Verification successful\n");
530 } else {
531 BIO_printf(bio_err, "Verification failure\n");
532 goto end;
533 }
534 signers = PKCS7_get0_signers(p7, other, flags);
535 if(!save_certs(signerfile, signers)) {
536 BIO_printf(bio_err, "Error writing signers to %s\n",
537 signerfile);
538 ret = 5;
539 goto end;
540 }
541 sk_X509_free(signers);
542 } else if(operation == SMIME_PK7OUT) {
543 PEM_write_bio_PKCS7(out, p7);
544 } else {
545 if(to) BIO_printf(out, "To: %s\n", to);
546 if(from) BIO_printf(out, "From: %s\n", from);
547 if(subject) BIO_printf(out, "Subject: %s\n", subject);
548 if(outformat == FORMAT_SMIME)
549 SMIME_write_PKCS7(out, p7, in, flags);
550 else if(outformat == FORMAT_PEM)
551 PEM_write_bio_PKCS7(out,p7);
552 else if(outformat == FORMAT_ASN1)
553 i2d_PKCS7_bio(out,p7);
554 else {
555 BIO_printf(bio_err, "Bad output format for PKCS#7 file\n");
556 goto end;
557 }
558 }
559 ret = 0;
560 end:
561 if (need_rand)
562 app_RAND_write_file(NULL, bio_err);
563 if(ret) ERR_print_errors(bio_err);
564 sk_X509_pop_free(encerts, X509_free);
565 sk_X509_pop_free(other, X509_free);
566 X509_STORE_free(store);
567 X509_free(cert);
568 X509_free(recip);
569 X509_free(signer);
570 EVP_PKEY_free(key);
571 PKCS7_free(p7);
572 BIO_free(in);
573 BIO_free(indata);
574 BIO_free_all(out);
575 if(passin) OPENSSL_free(passin);
576 return (ret);
577 }
578
579 static int save_certs(char *signerfile, STACK_OF(X509) *signers)
580 {
581 int i;
582 BIO *tmp;
583 if(!signerfile) return 1;
584 tmp = BIO_new_file(signerfile, "w");
585 if(!tmp) return 0;
586 for(i = 0; i < sk_X509_num(signers); i++)
587 PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
588 BIO_free(tmp);
589 return 1;
590 }
591
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