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diff --git a/src/lib/libcrypto/pkcs7/pk7_lib.c b/src/lib/libcrypto/pkcs7/pk7_lib.c
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1/* crypto/pkcs7/pk7_lib.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 "cryptlib.h"
61#include <openssl/objects.h>
62#include <openssl/x509.h>
63
64long PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg)
65 {
66 int nid;
67 long ret;
68
69 nid=OBJ_obj2nid(p7->type);
70
71 switch (cmd)
72 {
73 case PKCS7_OP_SET_DETACHED_SIGNATURE:
74 if (nid == NID_pkcs7_signed)
75 {
76 ret=p7->detached=(int)larg;
77 if (ret && PKCS7_type_is_data(p7->d.sign->contents))
78 {
79 ASN1_OCTET_STRING *os;
80 os=p7->d.sign->contents->d.data;
81 ASN1_OCTET_STRING_free(os);
82 p7->d.sign->contents->d.data = NULL;
83 }
84 }
85 else
86 {
87 PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
88 ret=0;
89 }
90 break;
91 case PKCS7_OP_GET_DETACHED_SIGNATURE:
92 if (nid == NID_pkcs7_signed)
93 {
94 if(!p7->d.sign || !p7->d.sign->contents->d.ptr)
95 ret = 1;
96 else ret = 0;
97
98 p7->detached = ret;
99 }
100 else
101 {
102 PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
103 ret=0;
104 }
105
106 break;
107 default:
108 PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_UNKNOWN_OPERATION);
109 ret=0;
110 }
111 return(ret);
112 }
113
114int PKCS7_content_new(PKCS7 *p7, int type)
115 {
116 PKCS7 *ret=NULL;
117
118 if ((ret=PKCS7_new()) == NULL) goto err;
119 if (!PKCS7_set_type(ret,type)) goto err;
120 if (!PKCS7_set_content(p7,ret)) goto err;
121
122 return(1);
123err:
124 if (ret != NULL) PKCS7_free(ret);
125 return(0);
126 }
127
128int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data)
129 {
130 int i;
131
132 i=OBJ_obj2nid(p7->type);
133 switch (i)
134 {
135 case NID_pkcs7_signed:
136 if (p7->d.sign->contents != NULL)
137 PKCS7_free(p7->d.sign->contents);
138 p7->d.sign->contents=p7_data;
139 break;
140 case NID_pkcs7_digest:
141 case NID_pkcs7_data:
142 case NID_pkcs7_enveloped:
143 case NID_pkcs7_signedAndEnveloped:
144 case NID_pkcs7_encrypted:
145 default:
146 PKCS7err(PKCS7_F_PKCS7_SET_CONTENT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
147 goto err;
148 }
149 return(1);
150err:
151 return(0);
152 }
153
154int PKCS7_set_type(PKCS7 *p7, int type)
155 {
156 ASN1_OBJECT *obj;
157
158 /*PKCS7_content_free(p7);*/
159 obj=OBJ_nid2obj(type); /* will not fail */
160
161 switch (type)
162 {
163 case NID_pkcs7_signed:
164 p7->type=obj;
165 if ((p7->d.sign=PKCS7_SIGNED_new()) == NULL)
166 goto err;
167 ASN1_INTEGER_set(p7->d.sign->version,1);
168 break;
169 case NID_pkcs7_data:
170 p7->type=obj;
171 if ((p7->d.data=M_ASN1_OCTET_STRING_new()) == NULL)
172 goto err;
173 break;
174 case NID_pkcs7_signedAndEnveloped:
175 p7->type=obj;
176 if ((p7->d.signed_and_enveloped=PKCS7_SIGN_ENVELOPE_new())
177 == NULL) goto err;
178 ASN1_INTEGER_set(p7->d.signed_and_enveloped->version,1);
179 p7->d.signed_and_enveloped->enc_data->content_type
180 = OBJ_nid2obj(NID_pkcs7_data);
181 break;
182 case NID_pkcs7_enveloped:
183 p7->type=obj;
184 if ((p7->d.enveloped=PKCS7_ENVELOPE_new())
185 == NULL) goto err;
186 ASN1_INTEGER_set(p7->d.enveloped->version,0);
187 p7->d.enveloped->enc_data->content_type
188 = OBJ_nid2obj(NID_pkcs7_data);
189 break;
190 case NID_pkcs7_encrypted:
191 p7->type=obj;
192 if ((p7->d.encrypted=PKCS7_ENCRYPT_new())
193 == NULL) goto err;
194 ASN1_INTEGER_set(p7->d.encrypted->version,0);
195 p7->d.encrypted->enc_data->content_type
196 = OBJ_nid2obj(NID_pkcs7_data);
197 break;
198
199 case NID_pkcs7_digest:
200 default:
201 PKCS7err(PKCS7_F_PKCS7_SET_TYPE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
202 goto err;
203 }
204 return(1);
205err:
206 return(0);
207 }
208
209int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *psi)
210 {
211 int i,j,nid;
212 X509_ALGOR *alg;
213 STACK_OF(PKCS7_SIGNER_INFO) *signer_sk;
214 STACK_OF(X509_ALGOR) *md_sk;
215
216 i=OBJ_obj2nid(p7->type);
217 switch (i)
218 {
219 case NID_pkcs7_signed:
220 signer_sk= p7->d.sign->signer_info;
221 md_sk= p7->d.sign->md_algs;
222 break;
223 case NID_pkcs7_signedAndEnveloped:
224 signer_sk= p7->d.signed_and_enveloped->signer_info;
225 md_sk= p7->d.signed_and_enveloped->md_algs;
226 break;
227 default:
228 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,PKCS7_R_WRONG_CONTENT_TYPE);
229 return(0);
230 }
231
232 nid=OBJ_obj2nid(psi->digest_alg->algorithm);
233
234 /* If the digest is not currently listed, add it */
235 j=0;
236 for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
237 {
238 alg=sk_X509_ALGOR_value(md_sk,i);
239 if (OBJ_obj2nid(alg->algorithm) == nid)
240 {
241 j=1;
242 break;
243 }
244 }
245 if (!j) /* we need to add another algorithm */
246 {
247 if(!(alg=X509_ALGOR_new())
248 || !(alg->parameter = ASN1_TYPE_new())) {
249 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,ERR_R_MALLOC_FAILURE);
250 return(0);
251 }
252 alg->algorithm=OBJ_nid2obj(nid);
253 alg->parameter->type = V_ASN1_NULL;
254 sk_X509_ALGOR_push(md_sk,alg);
255 }
256
257 sk_PKCS7_SIGNER_INFO_push(signer_sk,psi);
258 return(1);
259 }
260
261int PKCS7_add_certificate(PKCS7 *p7, X509 *x509)
262 {
263 int i;
264 STACK_OF(X509) **sk;
265
266 i=OBJ_obj2nid(p7->type);
267 switch (i)
268 {
269 case NID_pkcs7_signed:
270 sk= &(p7->d.sign->cert);
271 break;
272 case NID_pkcs7_signedAndEnveloped:
273 sk= &(p7->d.signed_and_enveloped->cert);
274 break;
275 default:
276 PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE,PKCS7_R_WRONG_CONTENT_TYPE);
277 return(0);
278 }
279
280 if (*sk == NULL)
281 *sk=sk_X509_new_null();
282 CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
283 sk_X509_push(*sk,x509);
284 return(1);
285 }
286
287int PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl)
288 {
289 int i;
290 STACK_OF(X509_CRL) **sk;
291
292 i=OBJ_obj2nid(p7->type);
293 switch (i)
294 {
295 case NID_pkcs7_signed:
296 sk= &(p7->d.sign->crl);
297 break;
298 case NID_pkcs7_signedAndEnveloped:
299 sk= &(p7->d.signed_and_enveloped->crl);
300 break;
301 default:
302 PKCS7err(PKCS7_F_PKCS7_ADD_CRL,PKCS7_R_WRONG_CONTENT_TYPE);
303 return(0);
304 }
305
306 if (*sk == NULL)
307 *sk=sk_X509_CRL_new_null();
308
309 CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL);
310 sk_X509_CRL_push(*sk,crl);
311 return(1);
312 }
313
314int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
315 const EVP_MD *dgst)
316 {
317 char is_dsa;
318 if (pkey->type == EVP_PKEY_DSA) is_dsa = 1;
319 else is_dsa = 0;
320 /* We now need to add another PKCS7_SIGNER_INFO entry */
321 ASN1_INTEGER_set(p7i->version,1);
322 X509_NAME_set(&p7i->issuer_and_serial->issuer,
323 X509_get_issuer_name(x509));
324
325 /* because ASN1_INTEGER_set is used to set a 'long' we will do
326 * things the ugly way. */
327 M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
328 p7i->issuer_and_serial->serial=
329 M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));
330
331 /* lets keep the pkey around for a while */
332 CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
333 p7i->pkey=pkey;
334
335 /* Set the algorithms */
336 if (is_dsa) p7i->digest_alg->algorithm=OBJ_nid2obj(NID_sha1);
337 else
338 p7i->digest_alg->algorithm=OBJ_nid2obj(EVP_MD_type(dgst));
339
340 if (p7i->digest_alg->parameter != NULL)
341 ASN1_TYPE_free(p7i->digest_alg->parameter);
342 if ((p7i->digest_alg->parameter=ASN1_TYPE_new()) == NULL)
343 goto err;
344 p7i->digest_alg->parameter->type=V_ASN1_NULL;
345
346 p7i->digest_enc_alg->algorithm=OBJ_nid2obj(EVP_PKEY_type(pkey->type));
347
348 if (p7i->digest_enc_alg->parameter != NULL)
349 ASN1_TYPE_free(p7i->digest_enc_alg->parameter);
350 if(is_dsa) p7i->digest_enc_alg->parameter = NULL;
351 else {
352 if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
353 goto err;
354 p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
355 }
356
357 return(1);
358err:
359 return(0);
360 }
361
362PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey,
363 const EVP_MD *dgst)
364 {
365 PKCS7_SIGNER_INFO *si;
366
367 if ((si=PKCS7_SIGNER_INFO_new()) == NULL) goto err;
368 if (!PKCS7_SIGNER_INFO_set(si,x509,pkey,dgst)) goto err;
369 if (!PKCS7_add_signer(p7,si)) goto err;
370 return(si);
371err:
372 return(NULL);
373 }
374
375STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7)
376 {
377 if (PKCS7_type_is_signed(p7))
378 {
379 return(p7->d.sign->signer_info);
380 }
381 else if (PKCS7_type_is_signedAndEnveloped(p7))
382 {
383 return(p7->d.signed_and_enveloped->signer_info);
384 }
385 else
386 return(NULL);
387 }
388
389PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509)
390 {
391 PKCS7_RECIP_INFO *ri;
392
393 if ((ri=PKCS7_RECIP_INFO_new()) == NULL) goto err;
394 if (!PKCS7_RECIP_INFO_set(ri,x509)) goto err;
395 if (!PKCS7_add_recipient_info(p7,ri)) goto err;
396 return(ri);
397err:
398 return(NULL);
399 }
400
401int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri)
402 {
403 int i;
404 STACK_OF(PKCS7_RECIP_INFO) *sk;
405
406 i=OBJ_obj2nid(p7->type);
407 switch (i)
408 {
409 case NID_pkcs7_signedAndEnveloped:
410 sk= p7->d.signed_and_enveloped->recipientinfo;
411 break;
412 case NID_pkcs7_enveloped:
413 sk= p7->d.enveloped->recipientinfo;
414 break;
415 default:
416 PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,PKCS7_R_WRONG_CONTENT_TYPE);
417 return(0);
418 }
419
420 sk_PKCS7_RECIP_INFO_push(sk,ri);
421 return(1);
422 }
423
424int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509)
425 {
426 ASN1_INTEGER_set(p7i->version,0);
427 X509_NAME_set(&p7i->issuer_and_serial->issuer,
428 X509_get_issuer_name(x509));
429
430 M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
431 p7i->issuer_and_serial->serial=
432 M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));
433
434 X509_ALGOR_free(p7i->key_enc_algor);
435 p7i->key_enc_algor= X509_ALGOR_dup(x509->cert_info->key->algor);
436
437 CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
438 p7i->cert=x509;
439
440 return(1);
441 }
442
443X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si)
444 {
445 if (PKCS7_type_is_signed(p7))
446 return(X509_find_by_issuer_and_serial(p7->d.sign->cert,
447 si->issuer_and_serial->issuer,
448 si->issuer_and_serial->serial));
449 else
450 return(NULL);
451 }
452
453int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher)
454 {
455 int i;
456 ASN1_OBJECT *objtmp;
457 PKCS7_ENC_CONTENT *ec;
458
459 i=OBJ_obj2nid(p7->type);
460 switch (i)
461 {
462 case NID_pkcs7_signedAndEnveloped:
463 ec=p7->d.signed_and_enveloped->enc_data;
464 break;
465 case NID_pkcs7_enveloped:
466 ec=p7->d.enveloped->enc_data;
467 break;
468 default:
469 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_WRONG_CONTENT_TYPE);
470 return(0);
471 }
472
473 /* Check cipher OID exists and has data in it*/
474 i = EVP_CIPHER_type(cipher);
475 if(i == NID_undef) {
476 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
477 return(0);
478 }
479 objtmp = OBJ_nid2obj(i);
480
481 ec->cipher = cipher;
482 return 1;
483 }
484
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-04-27 03:19:36 +0000