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
);
271 CRYPTO_add(&x509
->references
,1,CRYPTO_LOCK_X509
);
272 sk_push(*sk
,(char *)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
);