1 /* crypto/pkcs7/pk7_lib.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
61 #include <openssl/objects.h>
62 #include <openssl/x509.h>
64 long PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg)
69 nid=OBJ_obj2nid(p7->type);
73 case PKCS7_OP_SET_DETACHED_SIGNATURE:
74 if (nid == NID_pkcs7_signed)
76 ret=p7->detached=(int)larg;
77 if (ret && PKCS7_type_is_data(p7->d.sign->contents))
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;
87 PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
91 case PKCS7_OP_GET_DETACHED_SIGNATURE:
92 if (nid == NID_pkcs7_signed)
94 if(!p7->d.sign || !p7->d.sign->contents->d.ptr)
102 PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
108 PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_UNKNOWN_OPERATION);
114 int PKCS7_content_new(PKCS7 *p7, int type)
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;
124 if (ret != NULL) PKCS7_free(ret);
128 int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data)
132 i=OBJ_obj2nid(p7->type);
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;
140 case NID_pkcs7_digest:
142 case NID_pkcs7_enveloped:
143 case NID_pkcs7_signedAndEnveloped:
144 case NID_pkcs7_encrypted:
146 PKCS7err(PKCS7_F_PKCS7_SET_CONTENT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
154 int PKCS7_set_type(PKCS7 *p7, int type)
158 /*PKCS7_content_free(p7);*/
159 obj=OBJ_nid2obj(type); /* will not fail */
163 case NID_pkcs7_signed:
165 if ((p7->d.sign=PKCS7_SIGNED_new()) == NULL)
167 ASN1_INTEGER_set(p7->d.sign->version,1);
171 if ((p7->d.data=M_ASN1_OCTET_STRING_new()) == NULL)
174 case NID_pkcs7_signedAndEnveloped:
176 if ((p7->d.signed_and_enveloped=PKCS7_SIGN_ENVELOPE_new())
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);
182 case NID_pkcs7_enveloped:
184 if ((p7->d.enveloped=PKCS7_ENVELOPE_new())
186 ASN1_INTEGER_set(p7->d.enveloped->version,0);
187 p7->d.enveloped->enc_data->content_type
188 = OBJ_nid2obj(NID_pkcs7_data);
190 case NID_pkcs7_encrypted:
192 if ((p7->d.encrypted=PKCS7_ENCRYPT_new())
194 ASN1_INTEGER_set(p7->d.encrypted->version,0);
195 p7->d.encrypted->enc_data->content_type
196 = OBJ_nid2obj(NID_pkcs7_data);
199 case NID_pkcs7_digest:
201 if ((p7->d.digest=PKCS7_DIGEST_new())
203 ASN1_INTEGER_set(p7->d.digest->version,0);
206 PKCS7err(PKCS7_F_PKCS7_SET_TYPE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
214 int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *psi)
218 STACK_OF(PKCS7_SIGNER_INFO) *signer_sk;
219 STACK_OF(X509_ALGOR) *md_sk;
221 i=OBJ_obj2nid(p7->type);
224 case NID_pkcs7_signed:
225 signer_sk= p7->d.sign->signer_info;
226 md_sk= p7->d.sign->md_algs;
228 case NID_pkcs7_signedAndEnveloped:
229 signer_sk= p7->d.signed_and_enveloped->signer_info;
230 md_sk= p7->d.signed_and_enveloped->md_algs;
233 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,PKCS7_R_WRONG_CONTENT_TYPE);
237 nid=OBJ_obj2nid(psi->digest_alg->algorithm);
239 /* If the digest is not currently listed, add it */
241 for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
243 alg=sk_X509_ALGOR_value(md_sk,i);
244 if (OBJ_obj2nid(alg->algorithm) == nid)
250 if (!j) /* we need to add another algorithm */
252 if(!(alg=X509_ALGOR_new())
253 || !(alg->parameter = ASN1_TYPE_new())) {
254 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,ERR_R_MALLOC_FAILURE);
257 alg->algorithm=OBJ_nid2obj(nid);
258 alg->parameter->type = V_ASN1_NULL;
259 sk_X509_ALGOR_push(md_sk,alg);
262 sk_PKCS7_SIGNER_INFO_push(signer_sk,psi);
266 int PKCS7_add_certificate(PKCS7 *p7, X509 *x509)
271 i=OBJ_obj2nid(p7->type);
274 case NID_pkcs7_signed:
275 sk= &(p7->d.sign->cert);
277 case NID_pkcs7_signedAndEnveloped:
278 sk= &(p7->d.signed_and_enveloped->cert);
281 PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE,PKCS7_R_WRONG_CONTENT_TYPE);
286 *sk=sk_X509_new_null();
287 CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
288 sk_X509_push(*sk,x509);
292 int PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl)
295 STACK_OF(X509_CRL) **sk;
297 i=OBJ_obj2nid(p7->type);
300 case NID_pkcs7_signed:
301 sk= &(p7->d.sign->crl);
303 case NID_pkcs7_signedAndEnveloped:
304 sk= &(p7->d.signed_and_enveloped->crl);
307 PKCS7err(PKCS7_F_PKCS7_ADD_CRL,PKCS7_R_WRONG_CONTENT_TYPE);
312 *sk=sk_X509_CRL_new_null();
314 CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL);
315 sk_X509_CRL_push(*sk,crl);
319 int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
325 if (pkey->type == EVP_PKEY_DSA || pkey->type == EVP_PKEY_EC)
329 /* We now need to add another PKCS7_SIGNER_INFO entry */
330 ASN1_INTEGER_set(p7i->version,1);
331 X509_NAME_set(&p7i->issuer_and_serial->issuer,
332 X509_get_issuer_name(x509));
334 /* because ASN1_INTEGER_set is used to set a 'long' we will do
335 * things the ugly way. */
336 M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
337 p7i->issuer_and_serial->serial=
338 M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));
340 /* lets keep the pkey around for a while */
341 CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
344 /* Set the algorithms */
345 if (is_dsa) p7i->digest_alg->algorithm=OBJ_nid2obj(NID_sha1);
347 p7i->digest_alg->algorithm=OBJ_nid2obj(EVP_MD_type(dgst));
349 if (p7i->digest_alg->parameter != NULL)
350 ASN1_TYPE_free(p7i->digest_alg->parameter);
351 if ((p7i->digest_alg->parameter=ASN1_TYPE_new()) == NULL)
353 p7i->digest_alg->parameter->type=V_ASN1_NULL;
355 if (p7i->digest_enc_alg->parameter != NULL)
356 ASN1_TYPE_free(p7i->digest_enc_alg->parameter);
357 nid = EVP_PKEY_type(pkey->type);
358 if (nid == EVP_PKEY_RSA)
360 p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_rsaEncryption);
361 if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
363 p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
365 else if (nid == EVP_PKEY_DSA)
368 /* use 'dsaEncryption' OID for compatibility with other software
369 * (PKCS #7 v1.5 does specify how to handle DSA) ... */
370 p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_dsa);
372 /* ... although the 'dsaWithSHA1' OID (as required by RFC 2630 for CMS)
373 * would make more sense. */
374 p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_dsaWithSHA1);
376 p7i->digest_enc_alg->parameter = NULL; /* special case for DSA: omit 'parameter'! */
378 else if (nid == EVP_PKEY_EC)
380 p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_ecdsa_with_SHA1);
381 if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
383 p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
393 PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey,
396 PKCS7_SIGNER_INFO *si;
398 if ((si=PKCS7_SIGNER_INFO_new()) == NULL) goto err;
399 if (!PKCS7_SIGNER_INFO_set(si,x509,pkey,dgst)) goto err;
400 if (!PKCS7_add_signer(p7,si)) goto err;
406 STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7)
408 if (PKCS7_type_is_signed(p7))
410 return(p7->d.sign->signer_info);
412 else if (PKCS7_type_is_signedAndEnveloped(p7))
414 return(p7->d.signed_and_enveloped->signer_info);
420 PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509)
422 PKCS7_RECIP_INFO *ri;
424 if ((ri=PKCS7_RECIP_INFO_new()) == NULL) goto err;
425 if (!PKCS7_RECIP_INFO_set(ri,x509)) goto err;
426 if (!PKCS7_add_recipient_info(p7,ri)) goto err;
432 int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri)
435 STACK_OF(PKCS7_RECIP_INFO) *sk;
437 i=OBJ_obj2nid(p7->type);
440 case NID_pkcs7_signedAndEnveloped:
441 sk= p7->d.signed_and_enveloped->recipientinfo;
443 case NID_pkcs7_enveloped:
444 sk= p7->d.enveloped->recipientinfo;
447 PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,PKCS7_R_WRONG_CONTENT_TYPE);
451 sk_PKCS7_RECIP_INFO_push(sk,ri);
455 int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509)
457 ASN1_INTEGER_set(p7i->version,0);
458 X509_NAME_set(&p7i->issuer_and_serial->issuer,
459 X509_get_issuer_name(x509));
461 M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
462 p7i->issuer_and_serial->serial=
463 M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));
465 X509_ALGOR_free(p7i->key_enc_algor);
466 p7i->key_enc_algor= X509_ALGOR_dup(x509->cert_info->key->algor);
468 CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
474 X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si)
476 if (PKCS7_type_is_signed(p7))
477 return(X509_find_by_issuer_and_serial(p7->d.sign->cert,
478 si->issuer_and_serial->issuer,
479 si->issuer_and_serial->serial));
484 int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher)
488 PKCS7_ENC_CONTENT *ec;
490 i=OBJ_obj2nid(p7->type);
493 case NID_pkcs7_signedAndEnveloped:
494 ec=p7->d.signed_and_enveloped->enc_data;
496 case NID_pkcs7_enveloped:
497 ec=p7->d.enveloped->enc_data;
500 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_WRONG_CONTENT_TYPE);
504 /* Check cipher OID exists and has data in it*/
505 i = EVP_CIPHER_type(cipher);
507 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
510 objtmp = OBJ_nid2obj(i);