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.]
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)
91 PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
97 PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_UNKNOWN_OPERATION);
103 int PKCS7_content_new(PKCS7 *p7, int type)
107 if ((ret=PKCS7_new()) == NULL) goto err;
108 if (!PKCS7_set_type(ret,type)) goto err;
109 if (!PKCS7_set_content(p7,ret)) goto err;
113 if (ret != NULL) PKCS7_free(ret);
117 int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data)
121 i=OBJ_obj2nid(p7->type);
124 case NID_pkcs7_signed:
125 if (p7->d.sign->contents != NULL)
126 PKCS7_content_free(p7->d.sign->contents);
127 p7->d.sign->contents=p7_data;
129 case NID_pkcs7_digest:
131 case NID_pkcs7_enveloped:
132 case NID_pkcs7_signedAndEnveloped:
133 case NID_pkcs7_encrypted:
135 PKCS7err(PKCS7_F_PKCS7_SET_CONTENT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
143 int PKCS7_set_type(PKCS7 *p7, int type)
147 PKCS7_content_free(p7);
148 obj=OBJ_nid2obj(type); /* will not fail */
152 case NID_pkcs7_signed:
154 if ((p7->d.sign=PKCS7_SIGNED_new()) == NULL)
156 ASN1_INTEGER_set(p7->d.sign->version,1);
160 if ((p7->d.data=ASN1_OCTET_STRING_new()) == NULL)
163 case NID_pkcs7_signedAndEnveloped:
165 if ((p7->d.signed_and_enveloped=PKCS7_SIGN_ENVELOPE_new())
167 ASN1_INTEGER_set(p7->d.signed_and_enveloped->version,1);
168 /* p7->d.signed_and_enveloped->enc_data->content_type=
169 OBJ_nid2obj(NID_pkcs7_encrypted);*/
172 case NID_pkcs7_enveloped:
174 if ((p7->d.enveloped=PKCS7_ENVELOPE_new())
176 ASN1_INTEGER_set(p7->d.enveloped->version,0);
178 case NID_pkcs7_digest:
179 case NID_pkcs7_encrypted:
181 PKCS7err(PKCS7_F_PKCS7_SET_TYPE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
189 int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *psi)
196 i=OBJ_obj2nid(p7->type);
199 case NID_pkcs7_signed:
200 signer_sk= p7->d.sign->signer_info;
201 md_sk= p7->d.sign->md_algs;
203 case NID_pkcs7_signedAndEnveloped:
204 signer_sk= p7->d.signed_and_enveloped->signer_info;
205 md_sk= p7->d.signed_and_enveloped->md_algs;
208 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,PKCS7_R_WRONG_CONTENT_TYPE);
212 nid=OBJ_obj2nid(psi->digest_alg->algorithm);
214 /* If the digest is not currently listed, add it */
216 for (i=0; i<sk_num(md_sk); i++)
218 alg=(X509_ALGOR *)sk_value(md_sk,i);
219 if (OBJ_obj2nid(alg->algorithm) == nid)
225 if (!j) /* we need to add another algorithm */
227 alg=X509_ALGOR_new();
228 alg->algorithm=OBJ_nid2obj(nid);
229 sk_push(md_sk,(char *)alg);
232 sk_push(signer_sk,(char *)psi);
236 int PKCS7_add_certificate(PKCS7 *p7, X509 *x509)
241 i=OBJ_obj2nid(p7->type);
244 case NID_pkcs7_signed:
245 sk= &(p7->d.sign->cert);
247 case NID_pkcs7_signedAndEnveloped:
248 sk= &(p7->d.signed_and_enveloped->cert);
251 PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE,PKCS7_R_WRONG_CONTENT_TYPE);
256 *sk=sk_X509_new_null();
257 CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
258 sk_X509_push(*sk,x509);
262 int PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl)
267 i=OBJ_obj2nid(p7->type);
270 case NID_pkcs7_signed:
271 sk= &(p7->d.sign->crl);
273 case NID_pkcs7_signedAndEnveloped:
274 sk= &(p7->d.signed_and_enveloped->crl);
277 PKCS7err(PKCS7_F_PKCS7_ADD_CRL,PKCS7_R_WRONG_CONTENT_TYPE);
284 CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL);
285 sk_push(*sk,(char *)crl);
289 int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
292 /* We now need to add another PKCS7_SIGNER_INFO entry */
293 ASN1_INTEGER_set(p7i->version,1);
294 X509_NAME_set(&p7i->issuer_and_serial->issuer,
295 X509_get_issuer_name(x509));
297 /* because ASN1_INTEGER_set is used to set a 'long' we will do
298 * things the ugly way. */
299 ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
300 p7i->issuer_and_serial->serial=
301 ASN1_INTEGER_dup(X509_get_serialNumber(x509));
303 /* lets keep the pkey around for a while */
304 CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
307 /* Set the algorithms */
308 if (pkey->type == EVP_PKEY_DSA)
309 p7i->digest_alg->algorithm=OBJ_nid2obj(NID_sha1);
311 p7i->digest_alg->algorithm=OBJ_nid2obj(EVP_MD_type(dgst));
312 p7i->digest_enc_alg->algorithm=OBJ_nid2obj(EVP_MD_pkey_type(dgst));
315 if (p7i->digest_enc_alg->parameter != NULL)
316 ASN1_TYPE_free(p7i->digest_enc_alg->parameter);
317 if ((p7i->digest_enc_alg->parameter=ASN1_TYPE_new()) == NULL)
319 p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
327 PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey,
330 PKCS7_SIGNER_INFO *si;
332 if ((si=PKCS7_SIGNER_INFO_new()) == NULL) goto err;
333 if (!PKCS7_SIGNER_INFO_set(si,x509,pkey,dgst)) goto err;
334 if (!PKCS7_add_signer(p7,si)) goto err;
340 STACK *PKCS7_get_signer_info(PKCS7 *p7)
342 if (PKCS7_type_is_signed(p7))
344 return(p7->d.sign->signer_info);
346 else if (PKCS7_type_is_signedAndEnveloped(p7))
348 return(p7->d.signed_and_enveloped->signer_info);
354 PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509)
356 PKCS7_RECIP_INFO *ri;
358 if ((ri=PKCS7_RECIP_INFO_new()) == NULL) goto err;
359 if (!PKCS7_RECIP_INFO_set(ri,x509)) goto err;
360 if (!PKCS7_add_recipient_info(p7,ri)) goto err;
366 int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri)
371 i=OBJ_obj2nid(p7->type);
374 case NID_pkcs7_signedAndEnveloped:
375 sk= p7->d.signed_and_enveloped->recipientinfo;
377 case NID_pkcs7_enveloped:
378 sk= p7->d.enveloped->recipientinfo;
381 PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,PKCS7_R_WRONG_CONTENT_TYPE);
385 sk_push(sk,(char *)ri);
389 int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509)
391 ASN1_INTEGER_set(p7i->version,0);
392 X509_NAME_set(&p7i->issuer_and_serial->issuer,
393 X509_get_issuer_name(x509));
395 ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
396 p7i->issuer_and_serial->serial=
397 ASN1_INTEGER_dup(X509_get_serialNumber(x509));
399 X509_ALGOR_free(p7i->key_enc_algor);
400 p7i->key_enc_algor=(X509_ALGOR *)ASN1_dup(i2d_X509_ALGOR,
401 (char *(*)())d2i_X509_ALGOR,
402 (char *)x509->cert_info->key->algor);
404 CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
410 X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si)
412 if (PKCS7_type_is_signed(p7))
413 return(X509_find_by_issuer_and_serial(p7->d.sign->cert,
414 si->issuer_and_serial->issuer,
415 si->issuer_and_serial->serial));
420 int PKCS7_set_cipher(PKCS7 *p7, EVP_CIPHER *cipher)
423 PKCS7_ENC_CONTENT *ec;
425 i=OBJ_obj2nid(p7->type);
428 case NID_pkcs7_signedAndEnveloped:
429 ec=p7->d.signed_and_enveloped->enc_data;
431 case NID_pkcs7_enveloped:
432 ec=p7->d.enveloped->enc_data;
435 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_WRONG_CONTENT_TYPE);
439 ec->algorithm->algorithm=OBJ_nid2obj(EVP_CIPHER_nid(cipher));
440 return(ec->algorithm->algorithm != NULL);