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7bf7a6d0 MTL |
1 | /* |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. | |
3e575651 | 3 | * |
7bf7a6d0 MTL |
4 | * Licensed under the OpenSSL license (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
3e575651 SL |
8 | */ |
9 | ||
10 | #include <stdio.h> | |
7bf7a6d0 | 11 | #include "internal/cryptlib.h" |
3e575651 SL |
12 | #include <openssl/objects.h> |
13 | #include <openssl/x509.h> | |
7bf7a6d0 MTL |
14 | #include "internal/asn1_int.h" |
15 | #include "internal/evp_int.h" | |
3e575651 SL |
16 | |
17 | long PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg) | |
d3819813 MTL |
18 | { |
19 | int nid; | |
20 | long ret; | |
21 | ||
22 | nid = OBJ_obj2nid(p7->type); | |
23 | ||
24 | switch (cmd) { | |
25 | /* NOTE(emilia): does not support detached digested data. */ | |
26 | case PKCS7_OP_SET_DETACHED_SIGNATURE: | |
27 | if (nid == NID_pkcs7_signed) { | |
28 | ret = p7->detached = (int)larg; | |
29 | if (ret && PKCS7_type_is_data(p7->d.sign->contents)) { | |
30 | ASN1_OCTET_STRING *os; | |
31 | os = p7->d.sign->contents->d.data; | |
32 | ASN1_OCTET_STRING_free(os); | |
33 | p7->d.sign->contents->d.data = NULL; | |
34 | } | |
35 | } else { | |
36 | PKCS7err(PKCS7_F_PKCS7_CTRL, | |
37 | PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE); | |
38 | ret = 0; | |
39 | } | |
40 | break; | |
41 | case PKCS7_OP_GET_DETACHED_SIGNATURE: | |
42 | if (nid == NID_pkcs7_signed) { | |
43 | if (!p7->d.sign || !p7->d.sign->contents->d.ptr) | |
44 | ret = 1; | |
45 | else | |
46 | ret = 0; | |
47 | ||
48 | p7->detached = ret; | |
49 | } else { | |
50 | PKCS7err(PKCS7_F_PKCS7_CTRL, | |
51 | PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE); | |
52 | ret = 0; | |
53 | } | |
54 | ||
55 | break; | |
56 | default: | |
57 | PKCS7err(PKCS7_F_PKCS7_CTRL, PKCS7_R_UNKNOWN_OPERATION); | |
58 | ret = 0; | |
59 | } | |
60 | return (ret); | |
61 | } | |
3e575651 SL |
62 | |
63 | int PKCS7_content_new(PKCS7 *p7, int type) | |
d3819813 MTL |
64 | { |
65 | PKCS7 *ret = NULL; | |
66 | ||
67 | if ((ret = PKCS7_new()) == NULL) | |
68 | goto err; | |
69 | if (!PKCS7_set_type(ret, type)) | |
70 | goto err; | |
71 | if (!PKCS7_set_content(p7, ret)) | |
72 | goto err; | |
73 | ||
74 | return (1); | |
75 | err: | |
7bf7a6d0 | 76 | PKCS7_free(ret); |
d3819813 MTL |
77 | return (0); |
78 | } | |
3e575651 SL |
79 | |
80 | int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data) | |
d3819813 MTL |
81 | { |
82 | int i; | |
83 | ||
84 | i = OBJ_obj2nid(p7->type); | |
85 | switch (i) { | |
86 | case NID_pkcs7_signed: | |
7bf7a6d0 | 87 | PKCS7_free(p7->d.sign->contents); |
d3819813 MTL |
88 | p7->d.sign->contents = p7_data; |
89 | break; | |
90 | case NID_pkcs7_digest: | |
7bf7a6d0 | 91 | PKCS7_free(p7->d.digest->contents); |
d3819813 MTL |
92 | p7->d.digest->contents = p7_data; |
93 | break; | |
94 | case NID_pkcs7_data: | |
95 | case NID_pkcs7_enveloped: | |
96 | case NID_pkcs7_signedAndEnveloped: | |
97 | case NID_pkcs7_encrypted: | |
98 | default: | |
99 | PKCS7err(PKCS7_F_PKCS7_SET_CONTENT, PKCS7_R_UNSUPPORTED_CONTENT_TYPE); | |
100 | goto err; | |
101 | } | |
102 | return (1); | |
103 | err: | |
104 | return (0); | |
105 | } | |
3e575651 SL |
106 | |
107 | int PKCS7_set_type(PKCS7 *p7, int type) | |
d3819813 MTL |
108 | { |
109 | ASN1_OBJECT *obj; | |
110 | ||
111 | /* | |
112 | * PKCS7_content_free(p7); | |
113 | */ | |
114 | obj = OBJ_nid2obj(type); /* will not fail */ | |
115 | ||
116 | switch (type) { | |
117 | case NID_pkcs7_signed: | |
118 | p7->type = obj; | |
119 | if ((p7->d.sign = PKCS7_SIGNED_new()) == NULL) | |
120 | goto err; | |
121 | if (!ASN1_INTEGER_set(p7->d.sign->version, 1)) { | |
122 | PKCS7_SIGNED_free(p7->d.sign); | |
123 | p7->d.sign = NULL; | |
124 | goto err; | |
125 | } | |
126 | break; | |
127 | case NID_pkcs7_data: | |
128 | p7->type = obj; | |
7bf7a6d0 | 129 | if ((p7->d.data = ASN1_OCTET_STRING_new()) == NULL) |
d3819813 MTL |
130 | goto err; |
131 | break; | |
132 | case NID_pkcs7_signedAndEnveloped: | |
133 | p7->type = obj; | |
134 | if ((p7->d.signed_and_enveloped = PKCS7_SIGN_ENVELOPE_new()) | |
135 | == NULL) | |
136 | goto err; | |
137 | ASN1_INTEGER_set(p7->d.signed_and_enveloped->version, 1); | |
138 | if (!ASN1_INTEGER_set(p7->d.signed_and_enveloped->version, 1)) | |
139 | goto err; | |
140 | p7->d.signed_and_enveloped->enc_data->content_type | |
141 | = OBJ_nid2obj(NID_pkcs7_data); | |
142 | break; | |
143 | case NID_pkcs7_enveloped: | |
144 | p7->type = obj; | |
145 | if ((p7->d.enveloped = PKCS7_ENVELOPE_new()) | |
146 | == NULL) | |
147 | goto err; | |
148 | if (!ASN1_INTEGER_set(p7->d.enveloped->version, 0)) | |
149 | goto err; | |
150 | p7->d.enveloped->enc_data->content_type = OBJ_nid2obj(NID_pkcs7_data); | |
151 | break; | |
152 | case NID_pkcs7_encrypted: | |
153 | p7->type = obj; | |
154 | if ((p7->d.encrypted = PKCS7_ENCRYPT_new()) | |
155 | == NULL) | |
156 | goto err; | |
157 | if (!ASN1_INTEGER_set(p7->d.encrypted->version, 0)) | |
158 | goto err; | |
159 | p7->d.encrypted->enc_data->content_type = OBJ_nid2obj(NID_pkcs7_data); | |
160 | break; | |
161 | ||
162 | case NID_pkcs7_digest: | |
163 | p7->type = obj; | |
164 | if ((p7->d.digest = PKCS7_DIGEST_new()) | |
165 | == NULL) | |
166 | goto err; | |
167 | if (!ASN1_INTEGER_set(p7->d.digest->version, 0)) | |
168 | goto err; | |
169 | break; | |
170 | default: | |
171 | PKCS7err(PKCS7_F_PKCS7_SET_TYPE, PKCS7_R_UNSUPPORTED_CONTENT_TYPE); | |
172 | goto err; | |
173 | } | |
174 | return (1); | |
175 | err: | |
176 | return (0); | |
177 | } | |
3e575651 SL |
178 | |
179 | int PKCS7_set0_type_other(PKCS7 *p7, int type, ASN1_TYPE *other) | |
d3819813 MTL |
180 | { |
181 | p7->type = OBJ_nid2obj(type); | |
182 | p7->d.other = other; | |
183 | return 1; | |
184 | } | |
3e575651 SL |
185 | |
186 | int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *psi) | |
d3819813 MTL |
187 | { |
188 | int i, j, nid; | |
189 | X509_ALGOR *alg; | |
190 | STACK_OF(PKCS7_SIGNER_INFO) *signer_sk; | |
191 | STACK_OF(X509_ALGOR) *md_sk; | |
192 | ||
193 | i = OBJ_obj2nid(p7->type); | |
194 | switch (i) { | |
195 | case NID_pkcs7_signed: | |
196 | signer_sk = p7->d.sign->signer_info; | |
197 | md_sk = p7->d.sign->md_algs; | |
198 | break; | |
199 | case NID_pkcs7_signedAndEnveloped: | |
200 | signer_sk = p7->d.signed_and_enveloped->signer_info; | |
201 | md_sk = p7->d.signed_and_enveloped->md_algs; | |
202 | break; | |
203 | default: | |
204 | PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER, PKCS7_R_WRONG_CONTENT_TYPE); | |
205 | return (0); | |
206 | } | |
207 | ||
208 | nid = OBJ_obj2nid(psi->digest_alg->algorithm); | |
209 | ||
210 | /* If the digest is not currently listed, add it */ | |
211 | j = 0; | |
212 | for (i = 0; i < sk_X509_ALGOR_num(md_sk); i++) { | |
213 | alg = sk_X509_ALGOR_value(md_sk, i); | |
214 | if (OBJ_obj2nid(alg->algorithm) == nid) { | |
215 | j = 1; | |
216 | break; | |
217 | } | |
218 | } | |
219 | if (!j) { /* we need to add another algorithm */ | |
7bf7a6d0 MTL |
220 | if ((alg = X509_ALGOR_new()) == NULL |
221 | || (alg->parameter = ASN1_TYPE_new()) == NULL) { | |
d3819813 MTL |
222 | X509_ALGOR_free(alg); |
223 | PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER, ERR_R_MALLOC_FAILURE); | |
224 | return (0); | |
225 | } | |
226 | alg->algorithm = OBJ_nid2obj(nid); | |
227 | alg->parameter->type = V_ASN1_NULL; | |
228 | if (!sk_X509_ALGOR_push(md_sk, alg)) { | |
229 | X509_ALGOR_free(alg); | |
230 | return 0; | |
231 | } | |
232 | } | |
233 | ||
234 | if (!sk_PKCS7_SIGNER_INFO_push(signer_sk, psi)) | |
235 | return 0; | |
236 | return (1); | |
237 | } | |
3e575651 SL |
238 | |
239 | int PKCS7_add_certificate(PKCS7 *p7, X509 *x509) | |
d3819813 MTL |
240 | { |
241 | int i; | |
242 | STACK_OF(X509) **sk; | |
243 | ||
244 | i = OBJ_obj2nid(p7->type); | |
245 | switch (i) { | |
246 | case NID_pkcs7_signed: | |
247 | sk = &(p7->d.sign->cert); | |
248 | break; | |
249 | case NID_pkcs7_signedAndEnveloped: | |
250 | sk = &(p7->d.signed_and_enveloped->cert); | |
251 | break; | |
252 | default: | |
253 | PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE, PKCS7_R_WRONG_CONTENT_TYPE); | |
254 | return (0); | |
255 | } | |
256 | ||
257 | if (*sk == NULL) | |
258 | *sk = sk_X509_new_null(); | |
259 | if (*sk == NULL) { | |
260 | PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE, ERR_R_MALLOC_FAILURE); | |
261 | return 0; | |
262 | } | |
7bf7a6d0 | 263 | X509_up_ref(x509); |
d3819813 MTL |
264 | if (!sk_X509_push(*sk, x509)) { |
265 | X509_free(x509); | |
266 | return 0; | |
267 | } | |
268 | return (1); | |
269 | } | |
3e575651 SL |
270 | |
271 | int PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl) | |
d3819813 MTL |
272 | { |
273 | int i; | |
274 | STACK_OF(X509_CRL) **sk; | |
275 | ||
276 | i = OBJ_obj2nid(p7->type); | |
277 | switch (i) { | |
278 | case NID_pkcs7_signed: | |
279 | sk = &(p7->d.sign->crl); | |
280 | break; | |
281 | case NID_pkcs7_signedAndEnveloped: | |
282 | sk = &(p7->d.signed_and_enveloped->crl); | |
283 | break; | |
284 | default: | |
285 | PKCS7err(PKCS7_F_PKCS7_ADD_CRL, PKCS7_R_WRONG_CONTENT_TYPE); | |
286 | return (0); | |
287 | } | |
288 | ||
289 | if (*sk == NULL) | |
290 | *sk = sk_X509_CRL_new_null(); | |
291 | if (*sk == NULL) { | |
292 | PKCS7err(PKCS7_F_PKCS7_ADD_CRL, ERR_R_MALLOC_FAILURE); | |
293 | return 0; | |
294 | } | |
295 | ||
7bf7a6d0 | 296 | X509_CRL_up_ref(crl); |
d3819813 MTL |
297 | if (!sk_X509_CRL_push(*sk, crl)) { |
298 | X509_CRL_free(crl); | |
299 | return 0; | |
300 | } | |
301 | return (1); | |
302 | } | |
3e575651 SL |
303 | |
304 | int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey, | |
d3819813 MTL |
305 | const EVP_MD *dgst) |
306 | { | |
307 | int ret; | |
308 | ||
309 | /* We now need to add another PKCS7_SIGNER_INFO entry */ | |
310 | if (!ASN1_INTEGER_set(p7i->version, 1)) | |
311 | goto err; | |
312 | if (!X509_NAME_set(&p7i->issuer_and_serial->issuer, | |
313 | X509_get_issuer_name(x509))) | |
314 | goto err; | |
315 | ||
316 | /* | |
317 | * because ASN1_INTEGER_set is used to set a 'long' we will do things the | |
318 | * ugly way. | |
319 | */ | |
7bf7a6d0 | 320 | ASN1_INTEGER_free(p7i->issuer_and_serial->serial); |
d3819813 | 321 | if (!(p7i->issuer_and_serial->serial = |
7bf7a6d0 | 322 | ASN1_INTEGER_dup(X509_get_serialNumber(x509)))) |
d3819813 MTL |
323 | goto err; |
324 | ||
325 | /* lets keep the pkey around for a while */ | |
7bf7a6d0 | 326 | EVP_PKEY_up_ref(pkey); |
d3819813 MTL |
327 | p7i->pkey = pkey; |
328 | ||
329 | /* Set the algorithms */ | |
330 | ||
331 | X509_ALGOR_set0(p7i->digest_alg, OBJ_nid2obj(EVP_MD_type(dgst)), | |
332 | V_ASN1_NULL, NULL); | |
333 | ||
334 | if (pkey->ameth && pkey->ameth->pkey_ctrl) { | |
335 | ret = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_PKCS7_SIGN, 0, p7i); | |
336 | if (ret > 0) | |
337 | return 1; | |
338 | if (ret != -2) { | |
339 | PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET, | |
340 | PKCS7_R_SIGNING_CTRL_FAILURE); | |
341 | return 0; | |
342 | } | |
343 | } | |
344 | PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET, | |
345 | PKCS7_R_SIGNING_NOT_SUPPORTED_FOR_THIS_KEY_TYPE); | |
346 | err: | |
347 | return 0; | |
348 | } | |
3e575651 SL |
349 | |
350 | PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey, | |
d3819813 MTL |
351 | const EVP_MD *dgst) |
352 | { | |
353 | PKCS7_SIGNER_INFO *si = NULL; | |
354 | ||
355 | if (dgst == NULL) { | |
356 | int def_nid; | |
357 | if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) <= 0) | |
358 | goto err; | |
359 | dgst = EVP_get_digestbynid(def_nid); | |
360 | if (dgst == NULL) { | |
361 | PKCS7err(PKCS7_F_PKCS7_ADD_SIGNATURE, PKCS7_R_NO_DEFAULT_DIGEST); | |
362 | goto err; | |
363 | } | |
364 | } | |
365 | ||
366 | if ((si = PKCS7_SIGNER_INFO_new()) == NULL) | |
367 | goto err; | |
368 | if (!PKCS7_SIGNER_INFO_set(si, x509, pkey, dgst)) | |
369 | goto err; | |
370 | if (!PKCS7_add_signer(p7, si)) | |
371 | goto err; | |
372 | return (si); | |
373 | err: | |
7bf7a6d0 | 374 | PKCS7_SIGNER_INFO_free(si); |
d3819813 MTL |
375 | return (NULL); |
376 | } | |
3e575651 SL |
377 | |
378 | int PKCS7_set_digest(PKCS7 *p7, const EVP_MD *md) | |
d3819813 MTL |
379 | { |
380 | if (PKCS7_type_is_digest(p7)) { | |
7bf7a6d0 | 381 | if ((p7->d.digest->md->parameter = ASN1_TYPE_new()) == NULL) { |
d3819813 MTL |
382 | PKCS7err(PKCS7_F_PKCS7_SET_DIGEST, ERR_R_MALLOC_FAILURE); |
383 | return 0; | |
384 | } | |
385 | p7->d.digest->md->parameter->type = V_ASN1_NULL; | |
386 | p7->d.digest->md->algorithm = OBJ_nid2obj(EVP_MD_nid(md)); | |
387 | return 1; | |
388 | } | |
389 | ||
390 | PKCS7err(PKCS7_F_PKCS7_SET_DIGEST, PKCS7_R_WRONG_CONTENT_TYPE); | |
391 | return 1; | |
392 | } | |
3e575651 SL |
393 | |
394 | STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7) | |
d3819813 MTL |
395 | { |
396 | if (p7 == NULL || p7->d.ptr == NULL) | |
397 | return NULL; | |
398 | if (PKCS7_type_is_signed(p7)) { | |
399 | return (p7->d.sign->signer_info); | |
400 | } else if (PKCS7_type_is_signedAndEnveloped(p7)) { | |
401 | return (p7->d.signed_and_enveloped->signer_info); | |
402 | } else | |
403 | return (NULL); | |
404 | } | |
405 | ||
406 | void PKCS7_SIGNER_INFO_get0_algs(PKCS7_SIGNER_INFO *si, EVP_PKEY **pk, | |
407 | X509_ALGOR **pdig, X509_ALGOR **psig) | |
408 | { | |
409 | if (pk) | |
410 | *pk = si->pkey; | |
411 | if (pdig) | |
412 | *pdig = si->digest_alg; | |
413 | if (psig) | |
414 | *psig = si->digest_enc_alg; | |
415 | } | |
416 | ||
417 | void PKCS7_RECIP_INFO_get0_alg(PKCS7_RECIP_INFO *ri, X509_ALGOR **penc) | |
418 | { | |
419 | if (penc) | |
420 | *penc = ri->key_enc_algor; | |
421 | } | |
3e575651 SL |
422 | |
423 | PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509) | |
d3819813 MTL |
424 | { |
425 | PKCS7_RECIP_INFO *ri; | |
426 | ||
427 | if ((ri = PKCS7_RECIP_INFO_new()) == NULL) | |
428 | goto err; | |
429 | if (!PKCS7_RECIP_INFO_set(ri, x509)) | |
430 | goto err; | |
431 | if (!PKCS7_add_recipient_info(p7, ri)) | |
432 | goto err; | |
433 | return ri; | |
434 | err: | |
7bf7a6d0 | 435 | PKCS7_RECIP_INFO_free(ri); |
d3819813 MTL |
436 | return NULL; |
437 | } | |
3e575651 SL |
438 | |
439 | int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri) | |
d3819813 MTL |
440 | { |
441 | int i; | |
442 | STACK_OF(PKCS7_RECIP_INFO) *sk; | |
443 | ||
444 | i = OBJ_obj2nid(p7->type); | |
445 | switch (i) { | |
446 | case NID_pkcs7_signedAndEnveloped: | |
447 | sk = p7->d.signed_and_enveloped->recipientinfo; | |
448 | break; | |
449 | case NID_pkcs7_enveloped: | |
450 | sk = p7->d.enveloped->recipientinfo; | |
451 | break; | |
452 | default: | |
453 | PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO, | |
454 | PKCS7_R_WRONG_CONTENT_TYPE); | |
455 | return (0); | |
456 | } | |
457 | ||
458 | if (!sk_PKCS7_RECIP_INFO_push(sk, ri)) | |
459 | return 0; | |
460 | return (1); | |
461 | } | |
3e575651 SL |
462 | |
463 | int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509) | |
d3819813 MTL |
464 | { |
465 | int ret; | |
466 | EVP_PKEY *pkey = NULL; | |
467 | if (!ASN1_INTEGER_set(p7i->version, 0)) | |
468 | return 0; | |
469 | if (!X509_NAME_set(&p7i->issuer_and_serial->issuer, | |
470 | X509_get_issuer_name(x509))) | |
471 | return 0; | |
472 | ||
7bf7a6d0 | 473 | ASN1_INTEGER_free(p7i->issuer_and_serial->serial); |
d3819813 | 474 | if (!(p7i->issuer_and_serial->serial = |
7bf7a6d0 | 475 | ASN1_INTEGER_dup(X509_get_serialNumber(x509)))) |
d3819813 MTL |
476 | return 0; |
477 | ||
7bf7a6d0 | 478 | pkey = X509_get0_pubkey(x509); |
d3819813 MTL |
479 | |
480 | if (!pkey || !pkey->ameth || !pkey->ameth->pkey_ctrl) { | |
481 | PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET, | |
482 | PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE); | |
483 | goto err; | |
484 | } | |
485 | ||
486 | ret = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_PKCS7_ENCRYPT, 0, p7i); | |
487 | if (ret == -2) { | |
488 | PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET, | |
489 | PKCS7_R_ENCRYPTION_NOT_SUPPORTED_FOR_THIS_KEY_TYPE); | |
490 | goto err; | |
491 | } | |
492 | if (ret <= 0) { | |
493 | PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET, | |
494 | PKCS7_R_ENCRYPTION_CTRL_FAILURE); | |
495 | goto err; | |
496 | } | |
497 | ||
7bf7a6d0 | 498 | X509_up_ref(x509); |
d3819813 MTL |
499 | p7i->cert = x509; |
500 | ||
501 | return 1; | |
502 | ||
503 | err: | |
d3819813 MTL |
504 | return 0; |
505 | } | |
3e575651 SL |
506 | |
507 | X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si) | |
d3819813 MTL |
508 | { |
509 | if (PKCS7_type_is_signed(p7)) | |
510 | return (X509_find_by_issuer_and_serial(p7->d.sign->cert, | |
511 | si->issuer_and_serial->issuer, | |
512 | si-> | |
513 | issuer_and_serial->serial)); | |
514 | else | |
515 | return (NULL); | |
516 | } | |
3e575651 SL |
517 | |
518 | int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher) | |
d3819813 MTL |
519 | { |
520 | int i; | |
521 | PKCS7_ENC_CONTENT *ec; | |
522 | ||
523 | i = OBJ_obj2nid(p7->type); | |
524 | switch (i) { | |
525 | case NID_pkcs7_signedAndEnveloped: | |
526 | ec = p7->d.signed_and_enveloped->enc_data; | |
527 | break; | |
528 | case NID_pkcs7_enveloped: | |
529 | ec = p7->d.enveloped->enc_data; | |
530 | break; | |
531 | default: | |
532 | PKCS7err(PKCS7_F_PKCS7_SET_CIPHER, PKCS7_R_WRONG_CONTENT_TYPE); | |
533 | return (0); | |
534 | } | |
535 | ||
536 | /* Check cipher OID exists and has data in it */ | |
537 | i = EVP_CIPHER_type(cipher); | |
538 | if (i == NID_undef) { | |
539 | PKCS7err(PKCS7_F_PKCS7_SET_CIPHER, | |
540 | PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER); | |
541 | return (0); | |
542 | } | |
543 | ||
544 | ec->cipher = cipher; | |
545 | return 1; | |
546 | } | |
547 | ||
548 | int PKCS7_stream(unsigned char ***boundary, PKCS7 *p7) | |
549 | { | |
550 | ASN1_OCTET_STRING *os = NULL; | |
551 | ||
552 | switch (OBJ_obj2nid(p7->type)) { | |
553 | case NID_pkcs7_data: | |
554 | os = p7->d.data; | |
555 | break; | |
556 | ||
557 | case NID_pkcs7_signedAndEnveloped: | |
558 | os = p7->d.signed_and_enveloped->enc_data->enc_data; | |
559 | if (os == NULL) { | |
7bf7a6d0 | 560 | os = ASN1_OCTET_STRING_new(); |
d3819813 MTL |
561 | p7->d.signed_and_enveloped->enc_data->enc_data = os; |
562 | } | |
563 | break; | |
564 | ||
565 | case NID_pkcs7_enveloped: | |
566 | os = p7->d.enveloped->enc_data->enc_data; | |
567 | if (os == NULL) { | |
7bf7a6d0 | 568 | os = ASN1_OCTET_STRING_new(); |
d3819813 MTL |
569 | p7->d.enveloped->enc_data->enc_data = os; |
570 | } | |
571 | break; | |
572 | ||
573 | case NID_pkcs7_signed: | |
574 | os = p7->d.sign->contents->d.data; | |
575 | break; | |
576 | ||
577 | default: | |
578 | os = NULL; | |
579 | break; | |
580 | } | |
581 | ||
582 | if (os == NULL) | |
583 | return 0; | |
584 | ||
585 | os->flags |= ASN1_STRING_FLAG_NDEF; | |
586 | *boundary = &os->data; | |
587 | ||
588 | return 1; | |
589 | } |