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5a9a4b29 | 1 | /* smime.c */ |
ae5c8664 MC |
2 | /* |
3 | * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL | |
27068df7 | 4 | * project. |
5a9a4b29 DSH |
5 | */ |
6 | /* ==================================================================== | |
5d7c222d | 7 | * Copyright (c) 1999-2004 The OpenSSL Project. All rights reserved. |
5a9a4b29 DSH |
8 | * |
9 | * Redistribution and use in source and binary forms, with or without | |
10 | * modification, are permitted provided that the following conditions | |
11 | * are met: | |
12 | * | |
13 | * 1. Redistributions of source code must retain the above copyright | |
ae5c8664 | 14 | * notice, this list of conditions and the following disclaimer. |
5a9a4b29 DSH |
15 | * |
16 | * 2. Redistributions in binary form must reproduce the above copyright | |
17 | * notice, this list of conditions and the following disclaimer in | |
18 | * the documentation and/or other materials provided with the | |
19 | * distribution. | |
20 | * | |
21 | * 3. All advertising materials mentioning features or use of this | |
22 | * software must display the following acknowledgment: | |
23 | * "This product includes software developed by the OpenSSL Project | |
24 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
25 | * | |
26 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
27 | * endorse or promote products derived from this software without | |
28 | * prior written permission. For written permission, please contact | |
29 | * licensing@OpenSSL.org. | |
30 | * | |
31 | * 5. Products derived from this software may not be called "OpenSSL" | |
32 | * nor may "OpenSSL" appear in their names without prior written | |
33 | * permission of the OpenSSL Project. | |
34 | * | |
35 | * 6. Redistributions of any form whatsoever must retain the following | |
36 | * acknowledgment: | |
37 | * "This product includes software developed by the OpenSSL Project | |
38 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
39 | * | |
40 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
41 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
43 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
44 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
45 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
46 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
47 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
49 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
50 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
51 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
52 | * ==================================================================== | |
53 | * | |
54 | * This product includes cryptographic software written by Eric Young | |
55 | * (eay@cryptsoft.com). This product includes software written by Tim | |
56 | * Hudson (tjh@cryptsoft.com). | |
57 | * | |
58 | */ | |
59 | ||
60 | /* S/MIME utility function */ | |
61 | ||
62 | #include <stdio.h> | |
63 | #include <string.h> | |
36217a94 | 64 | #include "apps.h" |
11afb40c | 65 | #include <openssl/crypto.h> |
5a9a4b29 DSH |
66 | #include <openssl/pem.h> |
67 | #include <openssl/err.h> | |
5d7c222d DSH |
68 | #include <openssl/x509_vfy.h> |
69 | #include <openssl/x509v3.h> | |
5a9a4b29 DSH |
70 | |
71 | #undef PROG | |
72 | #define PROG smime_main | |
55ec5861 | 73 | static int save_certs(char *signerfile, STACK_OF(X509) *signers); |
5d7c222d | 74 | static int smime_cb(int ok, X509_STORE_CTX *ctx); |
5a9a4b29 | 75 | |
ae5c8664 MC |
76 | #define SMIME_OP 0x10 |
77 | #define SMIME_IP 0x20 | |
78 | #define SMIME_SIGNERS 0x40 | |
79 | #define SMIME_ENCRYPT (1 | SMIME_OP) | |
80 | #define SMIME_DECRYPT (2 | SMIME_IP) | |
81 | #define SMIME_SIGN (3 | SMIME_OP | SMIME_SIGNERS) | |
82 | #define SMIME_VERIFY (4 | SMIME_IP) | |
83 | #define SMIME_PK7OUT (5 | SMIME_IP | SMIME_OP) | |
84 | #define SMIME_RESIGN (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS) | |
5a9a4b29 | 85 | |
667ac4ec RE |
86 | int MAIN(int, char **); |
87 | ||
5a9a4b29 | 88 | int MAIN(int argc, char **argv) |
ae5c8664 MC |
89 | { |
90 | ENGINE *e = NULL; | |
91 | int operation = 0; | |
92 | int ret = 0; | |
93 | char **args; | |
94 | const char *inmode = "r", *outmode = "w"; | |
95 | char *infile = NULL, *outfile = NULL; | |
96 | char *signerfile = NULL, *recipfile = NULL; | |
97 | STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL; | |
98 | char *certfile = NULL, *keyfile = NULL, *contfile = NULL; | |
99 | const EVP_CIPHER *cipher = NULL; | |
100 | PKCS7 *p7 = NULL; | |
101 | X509_STORE *store = NULL; | |
102 | X509 *cert = NULL, *recip = NULL, *signer = NULL; | |
103 | EVP_PKEY *key = NULL; | |
104 | STACK_OF(X509) *encerts = NULL, *other = NULL; | |
105 | BIO *in = NULL, *out = NULL, *indata = NULL; | |
106 | int badarg = 0; | |
107 | int flags = PKCS7_DETACHED; | |
108 | char *to = NULL, *from = NULL, *subject = NULL; | |
109 | char *CAfile = NULL, *CApath = NULL; | |
110 | char *passargin = NULL, *passin = NULL; | |
111 | char *inrand = NULL; | |
112 | int need_rand = 0; | |
113 | int indef = 0; | |
114 | const EVP_MD *sign_md = NULL; | |
115 | int informat = FORMAT_SMIME, outformat = FORMAT_SMIME; | |
116 | int keyform = FORMAT_PEM; | |
ae5c8664 | 117 | char *engine = NULL; |
5a9a4b29 | 118 | |
ae5c8664 MC |
119 | X509_VERIFY_PARAM *vpm = NULL; |
120 | ||
121 | args = argv + 1; | |
122 | ret = 1; | |
123 | ||
124 | apps_startup(); | |
125 | ||
126 | if (bio_err == NULL) { | |
127 | if ((bio_err = BIO_new(BIO_s_file())) != NULL) | |
128 | BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); | |
129 | } | |
130 | ||
131 | if (!load_config(bio_err, NULL)) | |
132 | goto end; | |
133 | ||
134 | while (!badarg && *args && *args[0] == '-') { | |
135 | if (!strcmp(*args, "-encrypt")) | |
136 | operation = SMIME_ENCRYPT; | |
137 | else if (!strcmp(*args, "-decrypt")) | |
138 | operation = SMIME_DECRYPT; | |
139 | else if (!strcmp(*args, "-sign")) | |
140 | operation = SMIME_SIGN; | |
141 | else if (!strcmp(*args, "-resign")) | |
142 | operation = SMIME_RESIGN; | |
143 | else if (!strcmp(*args, "-verify")) | |
144 | operation = SMIME_VERIFY; | |
145 | else if (!strcmp(*args, "-pk7out")) | |
146 | operation = SMIME_PK7OUT; | |
cf1b7d96 | 147 | #ifndef OPENSSL_NO_DES |
ae5c8664 MC |
148 | else if (!strcmp(*args, "-des3")) |
149 | cipher = EVP_des_ede3_cbc(); | |
150 | else if (!strcmp(*args, "-des")) | |
151 | cipher = EVP_des_cbc(); | |
63da21c0 | 152 | #endif |
96afc1cf | 153 | #ifndef OPENSSL_NO_SEED |
ae5c8664 MC |
154 | else if (!strcmp(*args, "-seed")) |
155 | cipher = EVP_seed_cbc(); | |
96afc1cf | 156 | #endif |
cf1b7d96 | 157 | #ifndef OPENSSL_NO_RC2 |
ae5c8664 MC |
158 | else if (!strcmp(*args, "-rc2-40")) |
159 | cipher = EVP_rc2_40_cbc(); | |
160 | else if (!strcmp(*args, "-rc2-128")) | |
161 | cipher = EVP_rc2_cbc(); | |
162 | else if (!strcmp(*args, "-rc2-64")) | |
163 | cipher = EVP_rc2_64_cbc(); | |
b3dfaaa1 RL |
164 | #endif |
165 | #ifndef OPENSSL_NO_AES | |
ae5c8664 MC |
166 | else if (!strcmp(*args, "-aes128")) |
167 | cipher = EVP_aes_128_cbc(); | |
168 | else if (!strcmp(*args, "-aes192")) | |
169 | cipher = EVP_aes_192_cbc(); | |
170 | else if (!strcmp(*args, "-aes256")) | |
171 | cipher = EVP_aes_256_cbc(); | |
f3dea9a5 BM |
172 | #endif |
173 | #ifndef OPENSSL_NO_CAMELLIA | |
ae5c8664 MC |
174 | else if (!strcmp(*args, "-camellia128")) |
175 | cipher = EVP_camellia_128_cbc(); | |
176 | else if (!strcmp(*args, "-camellia192")) | |
177 | cipher = EVP_camellia_192_cbc(); | |
178 | else if (!strcmp(*args, "-camellia256")) | |
179 | cipher = EVP_camellia_256_cbc(); | |
63da21c0 | 180 | #endif |
ae5c8664 MC |
181 | else if (!strcmp(*args, "-text")) |
182 | flags |= PKCS7_TEXT; | |
183 | else if (!strcmp(*args, "-nointern")) | |
184 | flags |= PKCS7_NOINTERN; | |
185 | else if (!strcmp(*args, "-noverify")) | |
186 | flags |= PKCS7_NOVERIFY; | |
187 | else if (!strcmp(*args, "-nochain")) | |
188 | flags |= PKCS7_NOCHAIN; | |
189 | else if (!strcmp(*args, "-nocerts")) | |
190 | flags |= PKCS7_NOCERTS; | |
191 | else if (!strcmp(*args, "-noattr")) | |
192 | flags |= PKCS7_NOATTR; | |
193 | else if (!strcmp(*args, "-nodetach")) | |
194 | flags &= ~PKCS7_DETACHED; | |
195 | else if (!strcmp(*args, "-nosmimecap")) | |
196 | flags |= PKCS7_NOSMIMECAP; | |
197 | else if (!strcmp(*args, "-binary")) | |
198 | flags |= PKCS7_BINARY; | |
199 | else if (!strcmp(*args, "-nosigs")) | |
200 | flags |= PKCS7_NOSIGS; | |
201 | else if (!strcmp(*args, "-stream")) | |
202 | indef = 1; | |
203 | else if (!strcmp(*args, "-indef")) | |
204 | indef = 1; | |
205 | else if (!strcmp(*args, "-noindef")) | |
206 | indef = 0; | |
207 | else if (!strcmp(*args, "-nooldmime")) | |
208 | flags |= PKCS7_NOOLDMIMETYPE; | |
209 | else if (!strcmp(*args, "-crlfeol")) | |
210 | flags |= PKCS7_CRLFEOL; | |
211 | else if (!strcmp(*args, "-rand")) { | |
212 | if (!args[1]) | |
213 | goto argerr; | |
214 | args++; | |
215 | inrand = *args; | |
216 | need_rand = 1; | |
217 | } | |
0b13e9f0 | 218 | #ifndef OPENSSL_NO_ENGINE |
ae5c8664 MC |
219 | else if (!strcmp(*args, "-engine")) { |
220 | if (!args[1]) | |
221 | goto argerr; | |
222 | engine = *++args; | |
223 | } | |
0b13e9f0 | 224 | #endif |
ae5c8664 MC |
225 | else if (!strcmp(*args, "-passin")) { |
226 | if (!args[1]) | |
227 | goto argerr; | |
228 | passargin = *++args; | |
229 | } else if (!strcmp(*args, "-to")) { | |
230 | if (!args[1]) | |
231 | goto argerr; | |
232 | to = *++args; | |
233 | } else if (!strcmp(*args, "-from")) { | |
234 | if (!args[1]) | |
235 | goto argerr; | |
236 | from = *++args; | |
237 | } else if (!strcmp(*args, "-subject")) { | |
238 | if (!args[1]) | |
239 | goto argerr; | |
240 | subject = *++args; | |
241 | } else if (!strcmp(*args, "-signer")) { | |
242 | if (!args[1]) | |
243 | goto argerr; | |
244 | /* If previous -signer argument add signer to list */ | |
245 | ||
246 | if (signerfile) { | |
247 | if (!sksigners) | |
248 | sksigners = sk_OPENSSL_STRING_new_null(); | |
249 | sk_OPENSSL_STRING_push(sksigners, signerfile); | |
250 | if (!keyfile) | |
251 | keyfile = signerfile; | |
252 | if (!skkeys) | |
253 | skkeys = sk_OPENSSL_STRING_new_null(); | |
254 | sk_OPENSSL_STRING_push(skkeys, keyfile); | |
255 | keyfile = NULL; | |
256 | } | |
257 | signerfile = *++args; | |
258 | } else if (!strcmp(*args, "-recip")) { | |
259 | if (!args[1]) | |
260 | goto argerr; | |
261 | recipfile = *++args; | |
262 | } else if (!strcmp(*args, "-md")) { | |
263 | if (!args[1]) | |
264 | goto argerr; | |
265 | sign_md = EVP_get_digestbyname(*++args); | |
266 | if (sign_md == NULL) { | |
267 | BIO_printf(bio_err, "Unknown digest %s\n", *args); | |
268 | goto argerr; | |
269 | } | |
270 | } else if (!strcmp(*args, "-inkey")) { | |
271 | if (!args[1]) | |
272 | goto argerr; | |
273 | /* If previous -inkey arument add signer to list */ | |
274 | if (keyfile) { | |
275 | if (!signerfile) { | |
276 | BIO_puts(bio_err, "Illegal -inkey without -signer\n"); | |
277 | goto argerr; | |
278 | } | |
279 | if (!sksigners) | |
280 | sksigners = sk_OPENSSL_STRING_new_null(); | |
281 | sk_OPENSSL_STRING_push(sksigners, signerfile); | |
282 | signerfile = NULL; | |
283 | if (!skkeys) | |
284 | skkeys = sk_OPENSSL_STRING_new_null(); | |
285 | sk_OPENSSL_STRING_push(skkeys, keyfile); | |
286 | } | |
287 | keyfile = *++args; | |
288 | } else if (!strcmp(*args, "-keyform")) { | |
289 | if (!args[1]) | |
290 | goto argerr; | |
291 | keyform = str2fmt(*++args); | |
292 | } else if (!strcmp(*args, "-certfile")) { | |
293 | if (!args[1]) | |
294 | goto argerr; | |
295 | certfile = *++args; | |
296 | } else if (!strcmp(*args, "-CAfile")) { | |
297 | if (!args[1]) | |
298 | goto argerr; | |
299 | CAfile = *++args; | |
300 | } else if (!strcmp(*args, "-CApath")) { | |
301 | if (!args[1]) | |
302 | goto argerr; | |
303 | CApath = *++args; | |
304 | } else if (!strcmp(*args, "-in")) { | |
305 | if (!args[1]) | |
306 | goto argerr; | |
307 | infile = *++args; | |
308 | } else if (!strcmp(*args, "-inform")) { | |
309 | if (!args[1]) | |
310 | goto argerr; | |
311 | informat = str2fmt(*++args); | |
312 | } else if (!strcmp(*args, "-outform")) { | |
313 | if (!args[1]) | |
314 | goto argerr; | |
315 | outformat = str2fmt(*++args); | |
316 | } else if (!strcmp(*args, "-out")) { | |
317 | if (!args[1]) | |
318 | goto argerr; | |
319 | outfile = *++args; | |
320 | } else if (!strcmp(*args, "-content")) { | |
321 | if (!args[1]) | |
322 | goto argerr; | |
323 | contfile = *++args; | |
324 | } else if (args_verify(&args, NULL, &badarg, bio_err, &vpm)) | |
325 | continue; | |
326 | else if ((cipher = EVP_get_cipherbyname(*args + 1)) == NULL) | |
327 | badarg = 1; | |
328 | args++; | |
329 | } | |
330 | ||
331 | if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners)) { | |
332 | BIO_puts(bio_err, "Multiple signers or keys not allowed\n"); | |
333 | goto argerr; | |
334 | } | |
335 | ||
336 | if (operation & SMIME_SIGNERS) { | |
337 | /* Check to see if any final signer needs to be appended */ | |
338 | if (keyfile && !signerfile) { | |
339 | BIO_puts(bio_err, "Illegal -inkey without -signer\n"); | |
340 | goto argerr; | |
341 | } | |
342 | if (signerfile) { | |
343 | if (!sksigners) | |
344 | sksigners = sk_OPENSSL_STRING_new_null(); | |
345 | sk_OPENSSL_STRING_push(sksigners, signerfile); | |
346 | if (!skkeys) | |
347 | skkeys = sk_OPENSSL_STRING_new_null(); | |
348 | if (!keyfile) | |
349 | keyfile = signerfile; | |
350 | sk_OPENSSL_STRING_push(skkeys, keyfile); | |
351 | } | |
352 | if (!sksigners) { | |
353 | BIO_printf(bio_err, "No signer certificate specified\n"); | |
354 | badarg = 1; | |
355 | } | |
356 | signerfile = NULL; | |
357 | keyfile = NULL; | |
358 | need_rand = 1; | |
359 | } else if (operation == SMIME_DECRYPT) { | |
360 | if (!recipfile && !keyfile) { | |
361 | BIO_printf(bio_err, | |
362 | "No recipient certificate or key specified\n"); | |
363 | badarg = 1; | |
364 | } | |
365 | } else if (operation == SMIME_ENCRYPT) { | |
366 | if (!*args) { | |
367 | BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n"); | |
368 | badarg = 1; | |
369 | } | |
370 | need_rand = 1; | |
371 | } else if (!operation) | |
372 | badarg = 1; | |
373 | ||
374 | if (badarg) { | |
375 | argerr: | |
376 | BIO_printf(bio_err, "Usage smime [options] cert.pem ...\n"); | |
377 | BIO_printf(bio_err, "where options are\n"); | |
378 | BIO_printf(bio_err, "-encrypt encrypt message\n"); | |
379 | BIO_printf(bio_err, "-decrypt decrypt encrypted message\n"); | |
380 | BIO_printf(bio_err, "-sign sign message\n"); | |
381 | BIO_printf(bio_err, "-verify verify signed message\n"); | |
382 | BIO_printf(bio_err, "-pk7out output PKCS#7 structure\n"); | |
cf1b7d96 | 383 | #ifndef OPENSSL_NO_DES |
ae5c8664 MC |
384 | BIO_printf(bio_err, "-des3 encrypt with triple DES\n"); |
385 | BIO_printf(bio_err, "-des encrypt with DES\n"); | |
63da21c0 | 386 | #endif |
96afc1cf | 387 | #ifndef OPENSSL_NO_SEED |
ae5c8664 | 388 | BIO_printf(bio_err, "-seed encrypt with SEED\n"); |
96afc1cf | 389 | #endif |
cf1b7d96 | 390 | #ifndef OPENSSL_NO_RC2 |
ae5c8664 MC |
391 | BIO_printf(bio_err, "-rc2-40 encrypt with RC2-40 (default)\n"); |
392 | BIO_printf(bio_err, "-rc2-64 encrypt with RC2-64\n"); | |
393 | BIO_printf(bio_err, "-rc2-128 encrypt with RC2-128\n"); | |
b3dfaaa1 RL |
394 | #endif |
395 | #ifndef OPENSSL_NO_AES | |
ae5c8664 MC |
396 | BIO_printf(bio_err, "-aes128, -aes192, -aes256\n"); |
397 | BIO_printf(bio_err, | |
398 | " encrypt PEM output with cbc aes\n"); | |
f3dea9a5 BM |
399 | #endif |
400 | #ifndef OPENSSL_NO_CAMELLIA | |
ae5c8664 MC |
401 | BIO_printf(bio_err, "-camellia128, -camellia192, -camellia256\n"); |
402 | BIO_printf(bio_err, | |
403 | " encrypt PEM output with cbc camellia\n"); | |
63da21c0 | 404 | #endif |
ae5c8664 MC |
405 | BIO_printf(bio_err, |
406 | "-nointern don't search certificates in message for signer\n"); | |
407 | BIO_printf(bio_err, | |
408 | "-nosigs don't verify message signature\n"); | |
409 | BIO_printf(bio_err, | |
410 | "-noverify don't verify signers certificate\n"); | |
411 | BIO_printf(bio_err, | |
412 | "-nocerts don't include signers certificate when signing\n"); | |
413 | BIO_printf(bio_err, "-nodetach use opaque signing\n"); | |
414 | BIO_printf(bio_err, | |
415 | "-noattr don't include any signed attributes\n"); | |
416 | BIO_printf(bio_err, | |
417 | "-binary don't translate message to text\n"); | |
418 | BIO_printf(bio_err, "-certfile file other certificates file\n"); | |
419 | BIO_printf(bio_err, "-signer file signer certificate file\n"); | |
420 | BIO_printf(bio_err, | |
421 | "-recip file recipient certificate file for decryption\n"); | |
422 | BIO_printf(bio_err, "-in file input file\n"); | |
423 | BIO_printf(bio_err, | |
424 | "-inform arg input format SMIME (default), PEM or DER\n"); | |
425 | BIO_printf(bio_err, | |
426 | "-inkey file input private key (if not signer or recipient)\n"); | |
427 | BIO_printf(bio_err, | |
428 | "-keyform arg input private key format (PEM or ENGINE)\n"); | |
429 | BIO_printf(bio_err, "-out file output file\n"); | |
430 | BIO_printf(bio_err, | |
431 | "-outform arg output format SMIME (default), PEM or DER\n"); | |
432 | BIO_printf(bio_err, | |
433 | "-content file supply or override content for detached signature\n"); | |
434 | BIO_printf(bio_err, "-to addr to address\n"); | |
435 | BIO_printf(bio_err, "-from ad from address\n"); | |
436 | BIO_printf(bio_err, "-subject s subject\n"); | |
437 | BIO_printf(bio_err, | |
438 | "-text include or delete text MIME headers\n"); | |
439 | BIO_printf(bio_err, | |
440 | "-CApath dir trusted certificates directory\n"); | |
441 | BIO_printf(bio_err, "-CAfile file trusted certificates file\n"); | |
017a06c7 MC |
442 | BIO_printf(bio_err, |
443 | "-no_alt_chains only ever use the first certificate chain found\n"); | |
ae5c8664 MC |
444 | BIO_printf(bio_err, |
445 | "-crl_check check revocation status of signer's certificate using CRLs\n"); | |
446 | BIO_printf(bio_err, | |
447 | "-crl_check_all check revocation status of signer's certificate chain using CRLs\n"); | |
0b13e9f0 | 448 | #ifndef OPENSSL_NO_ENGINE |
ae5c8664 MC |
449 | BIO_printf(bio_err, |
450 | "-engine e use engine e, possibly a hardware device.\n"); | |
0b13e9f0 | 451 | #endif |
ae5c8664 MC |
452 | BIO_printf(bio_err, "-passin arg input file pass phrase source\n"); |
453 | BIO_printf(bio_err, "-rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, | |
454 | LIST_SEPARATOR_CHAR); | |
455 | BIO_printf(bio_err, | |
456 | " load the file (or the files in the directory) into\n"); | |
457 | BIO_printf(bio_err, " the random number generator\n"); | |
458 | BIO_printf(bio_err, | |
459 | "cert.pem recipient certificate(s) for encryption\n"); | |
460 | goto end; | |
461 | } | |
ae5c8664 | 462 | e = setup_engine(bio_err, engine, 0); |
5270e702 | 463 | |
ae5c8664 MC |
464 | if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) { |
465 | BIO_printf(bio_err, "Error getting password\n"); | |
466 | goto end; | |
467 | } | |
468 | ||
469 | if (need_rand) { | |
470 | app_RAND_load_file(NULL, bio_err, (inrand != NULL)); | |
471 | if (inrand != NULL) | |
472 | BIO_printf(bio_err, "%ld semi-random bytes loaded\n", | |
473 | app_RAND_load_files(inrand)); | |
474 | } | |
475 | ||
476 | ret = 2; | |
477 | ||
478 | if (!(operation & SMIME_SIGNERS)) | |
479 | flags &= ~PKCS7_DETACHED; | |
480 | ||
481 | if (operation & SMIME_OP) { | |
482 | if (outformat == FORMAT_ASN1) | |
483 | outmode = "wb"; | |
484 | } else { | |
485 | if (flags & PKCS7_BINARY) | |
486 | outmode = "wb"; | |
487 | } | |
488 | ||
489 | if (operation & SMIME_IP) { | |
490 | if (informat == FORMAT_ASN1) | |
491 | inmode = "rb"; | |
492 | } else { | |
493 | if (flags & PKCS7_BINARY) | |
494 | inmode = "rb"; | |
495 | } | |
496 | ||
497 | if (operation == SMIME_ENCRYPT) { | |
498 | if (!cipher) { | |
499 | #ifndef OPENSSL_NO_DES | |
500 | cipher = EVP_des_ede3_cbc(); | |
63da21c0 | 501 | #else |
ae5c8664 MC |
502 | BIO_printf(bio_err, "No cipher selected\n"); |
503 | goto end; | |
63da21c0 | 504 | #endif |
ae5c8664 MC |
505 | } |
506 | encerts = sk_X509_new_null(); | |
507 | while (*args) { | |
508 | if (!(cert = load_cert(bio_err, *args, FORMAT_PEM, | |
509 | NULL, e, "recipient certificate file"))) { | |
510 | #if 0 /* An appropriate message is already printed */ | |
511 | BIO_printf(bio_err, | |
512 | "Can't read recipient certificate file %s\n", | |
513 | *args); | |
30b4c272 | 514 | #endif |
ae5c8664 MC |
515 | goto end; |
516 | } | |
517 | sk_X509_push(encerts, cert); | |
518 | cert = NULL; | |
519 | args++; | |
520 | } | |
521 | } | |
522 | ||
523 | if (certfile) { | |
524 | if (!(other = load_certs(bio_err, certfile, FORMAT_PEM, NULL, | |
525 | e, "certificate file"))) { | |
526 | ERR_print_errors(bio_err); | |
527 | goto end; | |
528 | } | |
529 | } | |
530 | ||
531 | if (recipfile && (operation == SMIME_DECRYPT)) { | |
532 | if (!(recip = load_cert(bio_err, recipfile, FORMAT_PEM, NULL, | |
533 | e, "recipient certificate file"))) { | |
534 | ERR_print_errors(bio_err); | |
535 | goto end; | |
536 | } | |
537 | } | |
538 | ||
539 | if (operation == SMIME_DECRYPT) { | |
540 | if (!keyfile) | |
541 | keyfile = recipfile; | |
542 | } else if (operation == SMIME_SIGN) { | |
543 | if (!keyfile) | |
544 | keyfile = signerfile; | |
545 | } else | |
546 | keyfile = NULL; | |
547 | ||
548 | if (keyfile) { | |
549 | key = load_key(bio_err, keyfile, keyform, 0, passin, e, | |
550 | "signing key file"); | |
551 | if (!key) | |
552 | goto end; | |
553 | } | |
554 | ||
555 | if (infile) { | |
556 | if (!(in = BIO_new_file(infile, inmode))) { | |
557 | BIO_printf(bio_err, "Can't open input file %s\n", infile); | |
558 | goto end; | |
559 | } | |
560 | } else | |
561 | in = BIO_new_fp(stdin, BIO_NOCLOSE); | |
562 | ||
563 | if (operation & SMIME_IP) { | |
564 | if (informat == FORMAT_SMIME) | |
565 | p7 = SMIME_read_PKCS7(in, &indata); | |
566 | else if (informat == FORMAT_PEM) | |
567 | p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL); | |
568 | else if (informat == FORMAT_ASN1) | |
569 | p7 = d2i_PKCS7_bio(in, NULL); | |
570 | else { | |
571 | BIO_printf(bio_err, "Bad input format for PKCS#7 file\n"); | |
572 | goto end; | |
573 | } | |
574 | ||
575 | if (!p7) { | |
576 | BIO_printf(bio_err, "Error reading S/MIME message\n"); | |
577 | goto end; | |
578 | } | |
579 | if (contfile) { | |
580 | BIO_free(indata); | |
581 | if (!(indata = BIO_new_file(contfile, "rb"))) { | |
582 | BIO_printf(bio_err, "Can't read content file %s\n", contfile); | |
583 | goto end; | |
584 | } | |
585 | } | |
586 | } | |
587 | ||
588 | if (outfile) { | |
589 | if (!(out = BIO_new_file(outfile, outmode))) { | |
590 | BIO_printf(bio_err, "Can't open output file %s\n", outfile); | |
591 | goto end; | |
592 | } | |
593 | } else { | |
594 | out = BIO_new_fp(stdout, BIO_NOCLOSE); | |
bc36ee62 | 595 | #ifdef OPENSSL_SYS_VMS |
ae5c8664 MC |
596 | { |
597 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); | |
598 | out = BIO_push(tmpbio, out); | |
599 | } | |
645749ef | 600 | #endif |
ae5c8664 MC |
601 | } |
602 | ||
603 | if (operation == SMIME_VERIFY) { | |
604 | if (!(store = setup_verify(bio_err, CAfile, CApath))) | |
605 | goto end; | |
606 | X509_STORE_set_verify_cb(store, smime_cb); | |
607 | if (vpm) | |
608 | X509_STORE_set1_param(store, vpm); | |
609 | } | |
610 | ||
611 | ret = 3; | |
612 | ||
613 | if (operation == SMIME_ENCRYPT) { | |
614 | if (indef) | |
615 | flags |= PKCS7_STREAM; | |
616 | p7 = PKCS7_encrypt(encerts, in, cipher, flags); | |
617 | } else if (operation & SMIME_SIGNERS) { | |
618 | int i; | |
619 | /* | |
620 | * If detached data content we only enable streaming if S/MIME output | |
621 | * format. | |
622 | */ | |
623 | if (operation == SMIME_SIGN) { | |
624 | if (flags & PKCS7_DETACHED) { | |
625 | if (outformat == FORMAT_SMIME) | |
626 | flags |= PKCS7_STREAM; | |
627 | } else if (indef) | |
628 | flags |= PKCS7_STREAM; | |
629 | flags |= PKCS7_PARTIAL; | |
630 | p7 = PKCS7_sign(NULL, NULL, other, in, flags); | |
631 | if (!p7) | |
632 | goto end; | |
633 | if (flags & PKCS7_NOCERTS) { | |
634 | for (i = 0; i < sk_X509_num(other); i++) { | |
635 | X509 *x = sk_X509_value(other, i); | |
636 | PKCS7_add_certificate(p7, x); | |
637 | } | |
638 | } | |
639 | } else | |
640 | flags |= PKCS7_REUSE_DIGEST; | |
641 | for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) { | |
642 | signerfile = sk_OPENSSL_STRING_value(sksigners, i); | |
643 | keyfile = sk_OPENSSL_STRING_value(skkeys, i); | |
644 | signer = load_cert(bio_err, signerfile, FORMAT_PEM, NULL, | |
645 | e, "signer certificate"); | |
646 | if (!signer) | |
647 | goto end; | |
648 | key = load_key(bio_err, keyfile, keyform, 0, passin, e, | |
649 | "signing key file"); | |
650 | if (!key) | |
651 | goto end; | |
652 | if (!PKCS7_sign_add_signer(p7, signer, key, sign_md, flags)) | |
653 | goto end; | |
654 | X509_free(signer); | |
655 | signer = NULL; | |
656 | EVP_PKEY_free(key); | |
657 | key = NULL; | |
658 | } | |
659 | /* If not streaming or resigning finalize structure */ | |
660 | if ((operation == SMIME_SIGN) && !(flags & PKCS7_STREAM)) { | |
661 | if (!PKCS7_final(p7, in, flags)) | |
662 | goto end; | |
663 | } | |
664 | } | |
665 | ||
666 | if (!p7) { | |
667 | BIO_printf(bio_err, "Error creating PKCS#7 structure\n"); | |
668 | goto end; | |
669 | } | |
670 | ||
671 | ret = 4; | |
672 | if (operation == SMIME_DECRYPT) { | |
673 | if (!PKCS7_decrypt(p7, key, recip, out, flags)) { | |
674 | BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n"); | |
675 | goto end; | |
676 | } | |
677 | } else if (operation == SMIME_VERIFY) { | |
678 | STACK_OF(X509) *signers; | |
679 | if (PKCS7_verify(p7, other, store, indata, out, flags)) | |
680 | BIO_printf(bio_err, "Verification successful\n"); | |
681 | else { | |
682 | BIO_printf(bio_err, "Verification failure\n"); | |
683 | goto end; | |
684 | } | |
685 | signers = PKCS7_get0_signers(p7, other, flags); | |
686 | if (!save_certs(signerfile, signers)) { | |
687 | BIO_printf(bio_err, "Error writing signers to %s\n", signerfile); | |
688 | ret = 5; | |
689 | goto end; | |
690 | } | |
691 | sk_X509_free(signers); | |
692 | } else if (operation == SMIME_PK7OUT) | |
693 | PEM_write_bio_PKCS7(out, p7); | |
694 | else { | |
695 | if (to) | |
696 | BIO_printf(out, "To: %s\n", to); | |
697 | if (from) | |
698 | BIO_printf(out, "From: %s\n", from); | |
699 | if (subject) | |
700 | BIO_printf(out, "Subject: %s\n", subject); | |
701 | if (outformat == FORMAT_SMIME) { | |
702 | if (operation == SMIME_RESIGN) | |
703 | SMIME_write_PKCS7(out, p7, indata, flags); | |
704 | else | |
705 | SMIME_write_PKCS7(out, p7, in, flags); | |
706 | } else if (outformat == FORMAT_PEM) | |
707 | PEM_write_bio_PKCS7_stream(out, p7, in, flags); | |
708 | else if (outformat == FORMAT_ASN1) | |
709 | i2d_PKCS7_bio_stream(out, p7, in, flags); | |
710 | else { | |
711 | BIO_printf(bio_err, "Bad output format for PKCS#7 file\n"); | |
712 | goto end; | |
713 | } | |
714 | } | |
715 | ret = 0; | |
716 | end: | |
717 | if (need_rand) | |
718 | app_RAND_write_file(NULL, bio_err); | |
719 | if (ret) | |
720 | ERR_print_errors(bio_err); | |
721 | sk_X509_pop_free(encerts, X509_free); | |
722 | sk_X509_pop_free(other, X509_free); | |
723 | if (vpm) | |
724 | X509_VERIFY_PARAM_free(vpm); | |
725 | if (sksigners) | |
726 | sk_OPENSSL_STRING_free(sksigners); | |
727 | if (skkeys) | |
728 | sk_OPENSSL_STRING_free(skkeys); | |
729 | X509_STORE_free(store); | |
730 | X509_free(cert); | |
731 | X509_free(recip); | |
732 | X509_free(signer); | |
733 | EVP_PKEY_free(key); | |
734 | PKCS7_free(p7); | |
0df1caa7 | 735 | release_engine(e); |
ae5c8664 MC |
736 | BIO_free(in); |
737 | BIO_free(indata); | |
738 | BIO_free_all(out); | |
739 | if (passin) | |
740 | OPENSSL_free(passin); | |
741 | return (ret); | |
5a9a4b29 DSH |
742 | } |
743 | ||
a91451ef | 744 | static int save_certs(char *signerfile, STACK_OF(X509) *signers) |
ae5c8664 MC |
745 | { |
746 | int i; | |
747 | BIO *tmp; | |
748 | if (!signerfile) | |
749 | return 1; | |
750 | tmp = BIO_new_file(signerfile, "w"); | |
751 | if (!tmp) | |
752 | return 0; | |
753 | for (i = 0; i < sk_X509_num(signers); i++) | |
754 | PEM_write_bio_X509(tmp, sk_X509_value(signers, i)); | |
755 | BIO_free(tmp); | |
756 | return 1; | |
757 | } | |
5d7c222d | 758 | |
5d7c222d DSH |
759 | /* Minimal callback just to output policy info (if any) */ |
760 | ||
761 | static int smime_cb(int ok, X509_STORE_CTX *ctx) | |
ae5c8664 MC |
762 | { |
763 | int error; | |
5d7c222d | 764 | |
ae5c8664 | 765 | error = X509_STORE_CTX_get_error(ctx); |
5d7c222d | 766 | |
ae5c8664 MC |
767 | if ((error != X509_V_ERR_NO_EXPLICIT_POLICY) |
768 | && ((error != X509_V_OK) || (ok != 2))) | |
769 | return ok; | |
5d7c222d | 770 | |
ae5c8664 | 771 | policies_print(NULL, ctx); |
5d7c222d | 772 | |
ae5c8664 | 773 | return ok; |
5d7c222d | 774 | |
ae5c8664 | 775 | } |