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;
80 PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
84 case PKCS7_OP_GET_DETACHED_SIGNATURE:
85 if (nid == NID_pkcs7_signed)
87 if(!p7->d.sign || !p7->d.sign->contents->d.ptr)
95 PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
101 PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_UNKNOWN_OPERATION);
107 int PKCS7_content_new(PKCS7 *p7, int type)
111 if ((ret=PKCS7_new()) == NULL) goto err;
112 if (!PKCS7_set_type(ret,type)) goto err;
113 if (!PKCS7_set_content(p7,ret)) goto err;
117 if (ret != NULL) PKCS7_free(ret);
121 int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data)
125 i=OBJ_obj2nid(p7->type);
128 case NID_pkcs7_signed:
129 if (p7->d.sign->contents != NULL)
130 PKCS7_free(p7->d.sign->contents);
131 p7->d.sign->contents=p7_data;
133 case NID_pkcs7_digest:
135 case NID_pkcs7_enveloped:
136 case NID_pkcs7_signedAndEnveloped:
137 case NID_pkcs7_encrypted:
139 PKCS7err(PKCS7_F_PKCS7_SET_CONTENT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
147 int PKCS7_set_type(PKCS7 *p7, int type)
151 /*PKCS7_content_free(p7);*/
152 obj=OBJ_nid2obj(type); /* will not fail */
156 case NID_pkcs7_signed:
158 if ((p7->d.sign=PKCS7_SIGNED_new()) == NULL)
160 ASN1_INTEGER_set(p7->d.sign->version,1);
164 if ((p7->d.data=M_ASN1_OCTET_STRING_new()) == NULL)
167 case NID_pkcs7_signedAndEnveloped:
169 if ((p7->d.signed_and_enveloped=PKCS7_SIGN_ENVELOPE_new())
171 ASN1_INTEGER_set(p7->d.signed_and_enveloped->version,1);
172 p7->d.signed_and_enveloped->enc_data->content_type
173 = OBJ_nid2obj(NID_pkcs7_data);
175 case NID_pkcs7_enveloped:
177 if ((p7->d.enveloped=PKCS7_ENVELOPE_new())
179 ASN1_INTEGER_set(p7->d.enveloped->version,0);
180 p7->d.enveloped->enc_data->content_type
181 = OBJ_nid2obj(NID_pkcs7_data);
183 case NID_pkcs7_encrypted:
185 if ((p7->d.encrypted=PKCS7_ENCRYPT_new())
187 ASN1_INTEGER_set(p7->d.encrypted->version,0);
188 p7->d.encrypted->enc_data->content_type
189 = OBJ_nid2obj(NID_pkcs7_data);
192 case NID_pkcs7_digest:
194 PKCS7err(PKCS7_F_PKCS7_SET_TYPE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
202 int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *psi)
206 STACK_OF(PKCS7_SIGNER_INFO) *signer_sk;
207 STACK_OF(X509_ALGOR) *md_sk;
209 i=OBJ_obj2nid(p7->type);
212 case NID_pkcs7_signed:
213 signer_sk= p7->d.sign->signer_info;
214 md_sk= p7->d.sign->md_algs;
216 case NID_pkcs7_signedAndEnveloped:
217 signer_sk= p7->d.signed_and_enveloped->signer_info;
218 md_sk= p7->d.signed_and_enveloped->md_algs;
221 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,PKCS7_R_WRONG_CONTENT_TYPE);
225 nid=OBJ_obj2nid(psi->digest_alg->algorithm);
227 /* If the digest is not currently listed, add it */
229 for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
231 alg=sk_X509_ALGOR_value(md_sk,i);
232 if (OBJ_obj2nid(alg->algorithm) == nid)
238 if (!j) /* we need to add another algorithm */
240 if(!(alg=X509_ALGOR_new())
241 || !(alg->parameter = ASN1_TYPE_new())) {
242 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,ERR_R_MALLOC_FAILURE);
245 alg->algorithm=OBJ_nid2obj(nid);
246 alg->parameter->type = V_ASN1_NULL;
247 sk_X509_ALGOR_push(md_sk,alg);
250 sk_PKCS7_SIGNER_INFO_push(signer_sk,psi);
254 int PKCS7_add_certificate(PKCS7 *p7, X509 *x509)
259 i=OBJ_obj2nid(p7->type);
262 case NID_pkcs7_signed:
263 sk= &(p7->d.sign->cert);
265 case NID_pkcs7_signedAndEnveloped:
266 sk= &(p7->d.signed_and_enveloped->cert);
269 PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE,PKCS7_R_WRONG_CONTENT_TYPE);
274 *sk=sk_X509_new_null();
275 CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
276 sk_X509_push(*sk,x509);
280 int PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl)
283 STACK_OF(X509_CRL) **sk;
285 i=OBJ_obj2nid(p7->type);
288 case NID_pkcs7_signed:
289 sk= &(p7->d.sign->crl);
291 case NID_pkcs7_signedAndEnveloped:
292 sk= &(p7->d.signed_and_enveloped->crl);
295 PKCS7err(PKCS7_F_PKCS7_ADD_CRL,PKCS7_R_WRONG_CONTENT_TYPE);
300 *sk=sk_X509_CRL_new_null();
302 CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL);
303 sk_X509_CRL_push(*sk,crl);
307 int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
313 if (pkey->type == EVP_PKEY_DSA || pkey->type == EVP_PKEY_EC)
317 /* We now need to add another PKCS7_SIGNER_INFO entry */
318 ASN1_INTEGER_set(p7i->version,1);
319 X509_NAME_set(&p7i->issuer_and_serial->issuer,
320 X509_get_issuer_name(x509));
322 /* because ASN1_INTEGER_set is used to set a 'long' we will do
323 * things the ugly way. */
324 M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
325 p7i->issuer_and_serial->serial=
326 M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));
328 /* lets keep the pkey around for a while */
329 CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
332 /* Set the algorithms */
333 if (is_dsa) p7i->digest_alg->algorithm=OBJ_nid2obj(NID_sha1);
335 p7i->digest_alg->algorithm=OBJ_nid2obj(EVP_MD_type(dgst));
337 if (p7i->digest_alg->parameter != NULL)
338 ASN1_TYPE_free(p7i->digest_alg->parameter);
339 if ((p7i->digest_alg->parameter=ASN1_TYPE_new()) == NULL)
341 p7i->digest_alg->parameter->type=V_ASN1_NULL;
343 if (p7i->digest_enc_alg->parameter != NULL)
344 ASN1_TYPE_free(p7i->digest_enc_alg->parameter);
345 nid = EVP_PKEY_type(pkey->type);
346 if (nid == EVP_PKEY_RSA)
348 p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_rsaEncryption);
349 if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
351 p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
353 else if (nid == EVP_PKEY_DSA)
356 /* use 'dsaEncryption' OID for compatibility with other software
357 * (PKCS #7 v1.5 does specify how to handle DSA) ... */
358 p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_dsa);
360 /* ... although the 'dsaWithSHA1' OID (as required by RFC 2630 for CMS)
361 * would make more sense. */
362 p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_dsaWithSHA1);
364 p7i->digest_enc_alg->parameter = NULL; /* special case for DSA: omit 'parameter'! */
366 else if (nid == EVP_PKEY_EC)
368 p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_ecdsa_with_SHA1);
369 if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
371 p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
381 PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey,
384 PKCS7_SIGNER_INFO *si;
386 if ((si=PKCS7_SIGNER_INFO_new()) == NULL) goto err;
387 if (!PKCS7_SIGNER_INFO_set(si,x509,pkey,dgst)) goto err;
388 if (!PKCS7_add_signer(p7,si)) goto err;
394 STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7)
396 if (PKCS7_type_is_signed(p7))
398 return(p7->d.sign->signer_info);
400 else if (PKCS7_type_is_signedAndEnveloped(p7))
402 return(p7->d.signed_and_enveloped->signer_info);
408 PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509)
410 PKCS7_RECIP_INFO *ri;
412 if ((ri=PKCS7_RECIP_INFO_new()) == NULL) goto err;
413 if (!PKCS7_RECIP_INFO_set(ri,x509)) goto err;
414 if (!PKCS7_add_recipient_info(p7,ri)) goto err;
420 int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri)
423 STACK_OF(PKCS7_RECIP_INFO) *sk;
425 i=OBJ_obj2nid(p7->type);
428 case NID_pkcs7_signedAndEnveloped:
429 sk= p7->d.signed_and_enveloped->recipientinfo;
431 case NID_pkcs7_enveloped:
432 sk= p7->d.enveloped->recipientinfo;
435 PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,PKCS7_R_WRONG_CONTENT_TYPE);
439 sk_PKCS7_RECIP_INFO_push(sk,ri);
443 int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509)
445 ASN1_INTEGER_set(p7i->version,0);
446 X509_NAME_set(&p7i->issuer_and_serial->issuer,
447 X509_get_issuer_name(x509));
449 M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
450 p7i->issuer_and_serial->serial=
451 M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));
453 X509_ALGOR_free(p7i->key_enc_algor);
454 p7i->key_enc_algor= X509_ALGOR_dup(x509->cert_info->key->algor);
456 CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
462 X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si)
464 if (PKCS7_type_is_signed(p7))
465 return(X509_find_by_issuer_and_serial(p7->d.sign->cert,
466 si->issuer_and_serial->issuer,
467 si->issuer_and_serial->serial));
472 int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher)
476 PKCS7_ENC_CONTENT *ec;
478 i=OBJ_obj2nid(p7->type);
481 case NID_pkcs7_signedAndEnveloped:
482 ec=p7->d.signed_and_enveloped->enc_data;
484 case NID_pkcs7_enveloped:
485 ec=p7->d.enveloped->enc_data;
488 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_WRONG_CONTENT_TYPE);
492 /* Check cipher OID exists and has data in it*/
493 i = EVP_CIPHER_type(cipher);
495 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
498 objtmp = OBJ_nid2obj(i);