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
)
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_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
=M_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);
169 case NID_pkcs7_enveloped
:
171 if ((p7
->d
.enveloped
=PKCS7_ENVELOPE_new())
173 ASN1_INTEGER_set(p7
->d
.enveloped
->version
,0);
175 case NID_pkcs7_encrypted
:
177 if ((p7
->d
.encrypted
=PKCS7_ENCRYPT_new())
179 ASN1_INTEGER_set(p7
->d
.encrypted
->version
,0);
182 case NID_pkcs7_digest
:
184 PKCS7err(PKCS7_F_PKCS7_SET_TYPE
,PKCS7_R_UNSUPPORTED_CONTENT_TYPE
);
192 int PKCS7_add_signer(PKCS7
*p7
, PKCS7_SIGNER_INFO
*psi
)
196 STACK_OF(PKCS7_SIGNER_INFO
) *signer_sk
;
197 STACK_OF(X509_ALGOR
) *md_sk
;
199 i
=OBJ_obj2nid(p7
->type
);
202 case NID_pkcs7_signed
:
203 signer_sk
= p7
->d
.sign
->signer_info
;
204 md_sk
= p7
->d
.sign
->md_algs
;
206 case NID_pkcs7_signedAndEnveloped
:
207 signer_sk
= p7
->d
.signed_and_enveloped
->signer_info
;
208 md_sk
= p7
->d
.signed_and_enveloped
->md_algs
;
211 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER
,PKCS7_R_WRONG_CONTENT_TYPE
);
215 nid
=OBJ_obj2nid(psi
->digest_alg
->algorithm
);
217 /* If the digest is not currently listed, add it */
219 for (i
=0; i
<sk_X509_ALGOR_num(md_sk
); i
++)
221 alg
=sk_X509_ALGOR_value(md_sk
,i
);
222 if (OBJ_obj2nid(alg
->algorithm
) == nid
)
228 if (!j
) /* we need to add another algorithm */
230 alg
=X509_ALGOR_new();
231 alg
->algorithm
=OBJ_nid2obj(nid
);
232 sk_X509_ALGOR_push(md_sk
,alg
);
235 sk_PKCS7_SIGNER_INFO_push(signer_sk
,psi
);
239 int PKCS7_add_certificate(PKCS7
*p7
, X509
*x509
)
244 i
=OBJ_obj2nid(p7
->type
);
247 case NID_pkcs7_signed
:
248 sk
= &(p7
->d
.sign
->cert
);
250 case NID_pkcs7_signedAndEnveloped
:
251 sk
= &(p7
->d
.signed_and_enveloped
->cert
);
254 PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE
,PKCS7_R_WRONG_CONTENT_TYPE
);
259 *sk
=sk_X509_new_null();
260 CRYPTO_add(&x509
->references
,1,CRYPTO_LOCK_X509
);
261 sk_X509_push(*sk
,x509
);
265 int PKCS7_add_crl(PKCS7
*p7
, X509_CRL
*crl
)
268 STACK_OF(X509_CRL
) **sk
;
270 i
=OBJ_obj2nid(p7
->type
);
273 case NID_pkcs7_signed
:
274 sk
= &(p7
->d
.sign
->crl
);
276 case NID_pkcs7_signedAndEnveloped
:
277 sk
= &(p7
->d
.signed_and_enveloped
->crl
);
280 PKCS7err(PKCS7_F_PKCS7_ADD_CRL
,PKCS7_R_WRONG_CONTENT_TYPE
);
285 *sk
=sk_X509_CRL_new_null();
287 CRYPTO_add(&crl
->references
,1,CRYPTO_LOCK_X509_CRL
);
288 sk_X509_CRL_push(*sk
,crl
);
292 int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO
*p7i
, X509
*x509
, EVP_PKEY
*pkey
,
295 /* We now need to add another PKCS7_SIGNER_INFO entry */
296 ASN1_INTEGER_set(p7i
->version
,1);
297 X509_NAME_set(&p7i
->issuer_and_serial
->issuer
,
298 X509_get_issuer_name(x509
));
300 /* because ASN1_INTEGER_set is used to set a 'long' we will do
301 * things the ugly way. */
302 M_ASN1_INTEGER_free(p7i
->issuer_and_serial
->serial
);
303 p7i
->issuer_and_serial
->serial
=
304 M_ASN1_INTEGER_dup(X509_get_serialNumber(x509
));
306 /* lets keep the pkey around for a while */
307 CRYPTO_add(&pkey
->references
,1,CRYPTO_LOCK_EVP_PKEY
);
310 /* Set the algorithms */
311 if (pkey
->type
== EVP_PKEY_DSA
)
312 p7i
->digest_alg
->algorithm
=OBJ_nid2obj(NID_sha1
);
314 p7i
->digest_alg
->algorithm
=OBJ_nid2obj(EVP_MD_type(dgst
));
316 if (p7i
->digest_alg
->parameter
!= NULL
)
317 ASN1_TYPE_free(p7i
->digest_alg
->parameter
);
318 if ((p7i
->digest_alg
->parameter
=ASN1_TYPE_new()) == NULL
)
320 p7i
->digest_alg
->parameter
->type
=V_ASN1_NULL
;
322 p7i
->digest_enc_alg
->algorithm
=OBJ_nid2obj(EVP_PKEY_type(pkey
->type
));
324 if (p7i
->digest_enc_alg
->parameter
!= NULL
)
325 ASN1_TYPE_free(p7i
->digest_enc_alg
->parameter
);
326 if ((p7i
->digest_enc_alg
->parameter
=ASN1_TYPE_new()) == NULL
)
328 p7i
->digest_enc_alg
->parameter
->type
=V_ASN1_NULL
;
335 PKCS7_SIGNER_INFO
*PKCS7_add_signature(PKCS7
*p7
, X509
*x509
, EVP_PKEY
*pkey
,
338 PKCS7_SIGNER_INFO
*si
;
340 if ((si
=PKCS7_SIGNER_INFO_new()) == NULL
) goto err
;
341 if (!PKCS7_SIGNER_INFO_set(si
,x509
,pkey
,dgst
)) goto err
;
342 if (!PKCS7_add_signer(p7
,si
)) goto err
;
348 STACK_OF(PKCS7_SIGNER_INFO
) *PKCS7_get_signer_info(PKCS7
*p7
)
350 if (PKCS7_type_is_signed(p7
))
352 return(p7
->d
.sign
->signer_info
);
354 else if (PKCS7_type_is_signedAndEnveloped(p7
))
356 return(p7
->d
.signed_and_enveloped
->signer_info
);
362 PKCS7_RECIP_INFO
*PKCS7_add_recipient(PKCS7
*p7
, X509
*x509
)
364 PKCS7_RECIP_INFO
*ri
;
366 if ((ri
=PKCS7_RECIP_INFO_new()) == NULL
) goto err
;
367 if (!PKCS7_RECIP_INFO_set(ri
,x509
)) goto err
;
368 if (!PKCS7_add_recipient_info(p7
,ri
)) goto err
;
374 int PKCS7_add_recipient_info(PKCS7
*p7
, PKCS7_RECIP_INFO
*ri
)
377 STACK_OF(PKCS7_RECIP_INFO
) *sk
;
379 i
=OBJ_obj2nid(p7
->type
);
382 case NID_pkcs7_signedAndEnveloped
:
383 sk
= p7
->d
.signed_and_enveloped
->recipientinfo
;
385 case NID_pkcs7_enveloped
:
386 sk
= p7
->d
.enveloped
->recipientinfo
;
389 PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO
,PKCS7_R_WRONG_CONTENT_TYPE
);
393 sk_PKCS7_RECIP_INFO_push(sk
,ri
);
397 int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO
*p7i
, X509
*x509
)
399 ASN1_INTEGER_set(p7i
->version
,0);
400 X509_NAME_set(&p7i
->issuer_and_serial
->issuer
,
401 X509_get_issuer_name(x509
));
403 M_ASN1_INTEGER_free(p7i
->issuer_and_serial
->serial
);
404 p7i
->issuer_and_serial
->serial
=
405 M_ASN1_INTEGER_dup(X509_get_serialNumber(x509
));
407 X509_ALGOR_free(p7i
->key_enc_algor
);
408 p7i
->key_enc_algor
=(X509_ALGOR
*)ASN1_dup(i2d_X509_ALGOR
,
409 (char *(*)())d2i_X509_ALGOR
,
410 (char *)x509
->cert_info
->key
->algor
);
412 CRYPTO_add(&x509
->references
,1,CRYPTO_LOCK_X509
);
418 X509
*PKCS7_cert_from_signer_info(PKCS7
*p7
, PKCS7_SIGNER_INFO
*si
)
420 if (PKCS7_type_is_signed(p7
))
421 return(X509_find_by_issuer_and_serial(p7
->d
.sign
->cert
,
422 si
->issuer_and_serial
->issuer
,
423 si
->issuer_and_serial
->serial
));
428 int PKCS7_set_cipher(PKCS7
*p7
, const EVP_CIPHER
*cipher
)
431 PKCS7_ENC_CONTENT
*ec
;
433 i
=OBJ_obj2nid(p7
->type
);
436 case NID_pkcs7_signedAndEnveloped
:
437 ec
=p7
->d
.signed_and_enveloped
->enc_data
;
439 case NID_pkcs7_enveloped
:
440 ec
=p7
->d
.enveloped
->enc_data
;
443 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER
,PKCS7_R_WRONG_CONTENT_TYPE
);
447 /* Setup cipher OID */