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(p7,cmd,larg,parg)
73 nid=OBJ_obj2nid(p7->type);
77 case PKCS7_OP_SET_DETACHED_SIGNATURE:
78 if (nid == NID_pkcs7_signed)
80 ret=p7->detached=(int)larg;
84 PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
88 case PKCS7_OP_GET_DETACHED_SIGNATURE:
89 if (nid == NID_pkcs7_signed)
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(p7,type)
113 if ((ret=PKCS7_new()) == NULL) goto err;
114 if (!PKCS7_set_type(ret,type)) goto err;
115 if (!PKCS7_set_content(p7,ret)) goto err;
119 if (ret != NULL) PKCS7_free(ret);
123 int PKCS7_set_content(p7,p7_data)
129 i=OBJ_obj2nid(p7->type);
132 case NID_pkcs7_signed:
133 if (p7->d.sign->contents != NULL)
134 PKCS7_content_free(p7->d.sign->contents);
135 p7->d.sign->contents=p7_data;
137 case NID_pkcs7_digest:
139 case NID_pkcs7_enveloped:
140 case NID_pkcs7_signedAndEnveloped:
141 case NID_pkcs7_encrypted:
143 PKCS7err(PKCS7_F_PKCS7_SET_CONTENT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
151 int PKCS7_set_type(p7,type)
157 PKCS7_content_free(p7);
158 obj=OBJ_nid2obj(type); /* will not fail */
162 case NID_pkcs7_signed:
164 if ((p7->d.sign=PKCS7_SIGNED_new()) == NULL)
166 ASN1_INTEGER_set(p7->d.sign->version,1);
170 if ((p7->d.data=ASN1_OCTET_STRING_new()) == NULL)
173 case NID_pkcs7_signedAndEnveloped:
175 if ((p7->d.signed_and_enveloped=PKCS7_SIGN_ENVELOPE_new())
177 ASN1_INTEGER_set(p7->d.signed_and_enveloped->version,1);
178 /* p7->d.signed_and_enveloped->enc_data->content_type=
179 OBJ_nid2obj(NID_pkcs7_encrypted);*/
182 case NID_pkcs7_enveloped:
184 if ((p7->d.enveloped=PKCS7_ENVELOPE_new())
186 ASN1_INTEGER_set(p7->d.enveloped->version,0);
188 case NID_pkcs7_digest:
189 case NID_pkcs7_encrypted:
191 PKCS7err(PKCS7_F_PKCS7_SET_TYPE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
199 int PKCS7_add_signer(p7,psi)
201 PKCS7_SIGNER_INFO *psi;
208 i=OBJ_obj2nid(p7->type);
211 case NID_pkcs7_signed:
212 signer_sk= p7->d.sign->signer_info;
213 md_sk= p7->d.sign->md_algs;
215 case NID_pkcs7_signedAndEnveloped:
216 signer_sk= p7->d.signed_and_enveloped->signer_info;
217 md_sk= p7->d.signed_and_enveloped->md_algs;
220 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,PKCS7_R_WRONG_CONTENT_TYPE);
224 nid=OBJ_obj2nid(psi->digest_alg->algorithm);
226 /* If the digest is not currently listed, add it */
228 for (i=0; i<sk_num(md_sk); i++)
230 alg=(X509_ALGOR *)sk_value(md_sk,i);
231 if (OBJ_obj2nid(alg->algorithm) == nid)
237 if (!j) /* we need to add another algorithm */
239 alg=X509_ALGOR_new();
240 alg->algorithm=OBJ_nid2obj(nid);
241 sk_push(md_sk,(char *)alg);
244 sk_push(signer_sk,(char *)psi);
248 int PKCS7_add_certificate(p7,x509)
255 i=OBJ_obj2nid(p7->type);
258 case NID_pkcs7_signed:
259 sk= &(p7->d.sign->cert);
261 case NID_pkcs7_signedAndEnveloped:
262 sk= &(p7->d.signed_and_enveloped->cert);
265 PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE,PKCS7_R_WRONG_CONTENT_TYPE);
270 *sk=sk_X509_new_null();
271 CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
272 sk_X509_push(*sk,x509);
276 int PKCS7_add_crl(p7,crl)
283 i=OBJ_obj2nid(p7->type);
286 case NID_pkcs7_signed:
287 sk= &(p7->d.sign->crl);
289 case NID_pkcs7_signedAndEnveloped:
290 sk= &(p7->d.signed_and_enveloped->crl);
293 PKCS7err(PKCS7_F_PKCS7_ADD_CRL,PKCS7_R_WRONG_CONTENT_TYPE);
300 CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL);
301 sk_push(*sk,(char *)crl);
305 int PKCS7_SIGNER_INFO_set(p7i,x509,pkey,dgst)
306 PKCS7_SIGNER_INFO *p7i;
311 /* We now need to add another PKCS7_SIGNER_INFO entry */
312 ASN1_INTEGER_set(p7i->version,1);
313 X509_NAME_set(&p7i->issuer_and_serial->issuer,
314 X509_get_issuer_name(x509));
316 /* because ASN1_INTEGER_set is used to set a 'long' we will do
317 * things the ugly way. */
318 ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
319 p7i->issuer_and_serial->serial=
320 ASN1_INTEGER_dup(X509_get_serialNumber(x509));
322 /* lets keep the pkey around for a while */
323 CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
326 /* Set the algorithms */
327 if (pkey->type == EVP_PKEY_DSA)
328 p7i->digest_alg->algorithm=OBJ_nid2obj(NID_sha1);
330 p7i->digest_alg->algorithm=OBJ_nid2obj(EVP_MD_type(dgst));
331 p7i->digest_enc_alg->algorithm=OBJ_nid2obj(EVP_MD_pkey_type(dgst));
334 if (p7i->digest_enc_alg->parameter != NULL)
335 ASN1_TYPE_free(p7i->digest_enc_alg->parameter);
336 if ((p7i->digest_enc_alg->parameter=ASN1_TYPE_new()) == NULL)
338 p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
346 PKCS7_SIGNER_INFO *PKCS7_add_signature(p7,x509,pkey,dgst)
352 PKCS7_SIGNER_INFO *si;
354 if ((si=PKCS7_SIGNER_INFO_new()) == NULL) goto err;
355 if (!PKCS7_SIGNER_INFO_set(si,x509,pkey,dgst)) goto err;
356 if (!PKCS7_add_signer(p7,si)) goto err;
362 STACK *PKCS7_get_signer_info(p7)
365 if (PKCS7_type_is_signed(p7))
367 return(p7->d.sign->signer_info);
369 else if (PKCS7_type_is_signedAndEnveloped(p7))
371 return(p7->d.signed_and_enveloped->signer_info);
377 PKCS7_RECIP_INFO *PKCS7_add_recipient(p7,x509)
381 PKCS7_RECIP_INFO *ri;
383 if ((ri=PKCS7_RECIP_INFO_new()) == NULL) goto err;
384 if (!PKCS7_RECIP_INFO_set(ri,x509)) goto err;
385 if (!PKCS7_add_recipient_info(p7,ri)) goto err;
391 int PKCS7_add_recipient_info(p7,ri)
393 PKCS7_RECIP_INFO *ri;
398 i=OBJ_obj2nid(p7->type);
401 case NID_pkcs7_signedAndEnveloped:
402 sk= p7->d.signed_and_enveloped->recipientinfo;
404 case NID_pkcs7_enveloped:
405 sk= p7->d.enveloped->recipientinfo;
408 PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,PKCS7_R_WRONG_CONTENT_TYPE);
412 sk_push(sk,(char *)ri);
416 int PKCS7_RECIP_INFO_set(p7i,x509)
417 PKCS7_RECIP_INFO *p7i;
420 ASN1_INTEGER_set(p7i->version,0);
421 X509_NAME_set(&p7i->issuer_and_serial->issuer,
422 X509_get_issuer_name(x509));
424 ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
425 p7i->issuer_and_serial->serial=
426 ASN1_INTEGER_dup(X509_get_serialNumber(x509));
428 X509_ALGOR_free(p7i->key_enc_algor);
429 p7i->key_enc_algor=(X509_ALGOR *)ASN1_dup(i2d_X509_ALGOR,
430 (char *(*)())d2i_X509_ALGOR,
431 (char *)x509->cert_info->key->algor);
433 CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
439 X509 *PKCS7_cert_from_signer_info(p7,si)
441 PKCS7_SIGNER_INFO *si;
443 if (PKCS7_type_is_signed(p7))
444 return(X509_find_by_issuer_and_serial(p7->d.sign->cert,
445 si->issuer_and_serial->issuer,
446 si->issuer_and_serial->serial));
451 int PKCS7_set_cipher(p7,cipher)
456 PKCS7_ENC_CONTENT *ec;
458 i=OBJ_obj2nid(p7->type);
461 case NID_pkcs7_signedAndEnveloped:
462 ec=p7->d.signed_and_enveloped->enc_data;
464 case NID_pkcs7_enveloped:
465 ec=p7->d.enveloped->enc_data;
468 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_WRONG_CONTENT_TYPE);
472 ec->algorithm->algorithm=OBJ_nid2obj(EVP_CIPHER_nid(cipher));
473 return(ec->algorithm->algorithm != NULL);