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);
173 case NID_pkcs7_enveloped
:
175 if ((p7
->d
.enveloped
=PKCS7_ENVELOPE_new())
177 ASN1_INTEGER_set(p7
->d
.enveloped
->version
,0);
179 case NID_pkcs7_encrypted
:
181 if ((p7
->d
.encrypted
=PKCS7_ENCRYPT_new())
183 ASN1_INTEGER_set(p7
->d
.encrypted
->version
,0);
186 case NID_pkcs7_digest
:
188 PKCS7err(PKCS7_F_PKCS7_SET_TYPE
,PKCS7_R_UNSUPPORTED_CONTENT_TYPE
);
196 int PKCS7_add_signer(PKCS7
*p7
, PKCS7_SIGNER_INFO
*psi
)
200 STACK_OF(PKCS7_SIGNER_INFO
) *signer_sk
;
201 STACK_OF(X509_ALGOR
) *md_sk
;
203 i
=OBJ_obj2nid(p7
->type
);
206 case NID_pkcs7_signed
:
207 signer_sk
= p7
->d
.sign
->signer_info
;
208 md_sk
= p7
->d
.sign
->md_algs
;
210 case NID_pkcs7_signedAndEnveloped
:
211 signer_sk
= p7
->d
.signed_and_enveloped
->signer_info
;
212 md_sk
= p7
->d
.signed_and_enveloped
->md_algs
;
215 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER
,PKCS7_R_WRONG_CONTENT_TYPE
);
219 nid
=OBJ_obj2nid(psi
->digest_alg
->algorithm
);
221 /* If the digest is not currently listed, add it */
223 for (i
=0; i
<sk_X509_ALGOR_num(md_sk
); i
++)
225 alg
=sk_X509_ALGOR_value(md_sk
,i
);
226 if (OBJ_obj2nid(alg
->algorithm
) == nid
)
232 if (!j
) /* we need to add another algorithm */
234 if(!(alg
=X509_ALGOR_new())
235 || !(alg
->parameter
= ASN1_TYPE_new())) {
236 PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER
,ERR_R_MALLOC_FAILURE
);
239 alg
->algorithm
=OBJ_nid2obj(nid
);
240 alg
->parameter
->type
= V_ASN1_NULL
;
241 sk_X509_ALGOR_push(md_sk
,alg
);
244 sk_PKCS7_SIGNER_INFO_push(signer_sk
,psi
);
248 int PKCS7_add_certificate(PKCS7
*p7
, X509
*x509
)
253 i
=OBJ_obj2nid(p7
->type
);
256 case NID_pkcs7_signed
:
257 sk
= &(p7
->d
.sign
->cert
);
259 case NID_pkcs7_signedAndEnveloped
:
260 sk
= &(p7
->d
.signed_and_enveloped
->cert
);
263 PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE
,PKCS7_R_WRONG_CONTENT_TYPE
);
268 *sk
=sk_X509_new_null();
269 CRYPTO_add(&x509
->references
,1,CRYPTO_LOCK_X509
);
270 sk_X509_push(*sk
,x509
);
274 int PKCS7_add_crl(PKCS7
*p7
, X509_CRL
*crl
)
277 STACK_OF(X509_CRL
) **sk
;
279 i
=OBJ_obj2nid(p7
->type
);
282 case NID_pkcs7_signed
:
283 sk
= &(p7
->d
.sign
->crl
);
285 case NID_pkcs7_signedAndEnveloped
:
286 sk
= &(p7
->d
.signed_and_enveloped
->crl
);
289 PKCS7err(PKCS7_F_PKCS7_ADD_CRL
,PKCS7_R_WRONG_CONTENT_TYPE
);
294 *sk
=sk_X509_CRL_new_null();
296 CRYPTO_add(&crl
->references
,1,CRYPTO_LOCK_X509_CRL
);
297 sk_X509_CRL_push(*sk
,crl
);
301 int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO
*p7i
, X509
*x509
, EVP_PKEY
*pkey
,
305 if (pkey
->type
== EVP_PKEY_DSA
) is_dsa
= 1;
307 /* We now need to add another PKCS7_SIGNER_INFO entry */
308 ASN1_INTEGER_set(p7i
->version
,1);
309 X509_NAME_set(&p7i
->issuer_and_serial
->issuer
,
310 X509_get_issuer_name(x509
));
312 /* because ASN1_INTEGER_set is used to set a 'long' we will do
313 * things the ugly way. */
314 M_ASN1_INTEGER_free(p7i
->issuer_and_serial
->serial
);
315 p7i
->issuer_and_serial
->serial
=
316 M_ASN1_INTEGER_dup(X509_get_serialNumber(x509
));
318 /* lets keep the pkey around for a while */
319 CRYPTO_add(&pkey
->references
,1,CRYPTO_LOCK_EVP_PKEY
);
322 /* Set the algorithms */
323 if (is_dsa
) p7i
->digest_alg
->algorithm
=OBJ_nid2obj(NID_sha1
);
325 p7i
->digest_alg
->algorithm
=OBJ_nid2obj(EVP_MD_type(dgst
));
327 if (p7i
->digest_alg
->parameter
!= NULL
)
328 ASN1_TYPE_free(p7i
->digest_alg
->parameter
);
329 if ((p7i
->digest_alg
->parameter
=ASN1_TYPE_new()) == NULL
)
331 p7i
->digest_alg
->parameter
->type
=V_ASN1_NULL
;
333 p7i
->digest_enc_alg
->algorithm
=OBJ_nid2obj(EVP_PKEY_type(pkey
->type
));
335 if (p7i
->digest_enc_alg
->parameter
!= NULL
)
336 ASN1_TYPE_free(p7i
->digest_enc_alg
->parameter
);
337 if(is_dsa
) p7i
->digest_enc_alg
->parameter
= NULL
;
339 if (!(p7i
->digest_enc_alg
->parameter
=ASN1_TYPE_new()))
341 p7i
->digest_enc_alg
->parameter
->type
=V_ASN1_NULL
;
349 PKCS7_SIGNER_INFO
*PKCS7_add_signature(PKCS7
*p7
, X509
*x509
, EVP_PKEY
*pkey
,
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_OF(PKCS7_SIGNER_INFO
) *PKCS7_get_signer_info(PKCS7
*p7
)
364 if (PKCS7_type_is_signed(p7
))
366 return(p7
->d
.sign
->signer_info
);
368 else if (PKCS7_type_is_signedAndEnveloped(p7
))
370 return(p7
->d
.signed_and_enveloped
->signer_info
);
376 PKCS7_RECIP_INFO
*PKCS7_add_recipient(PKCS7
*p7
, X509
*x509
)
378 PKCS7_RECIP_INFO
*ri
;
380 if ((ri
=PKCS7_RECIP_INFO_new()) == NULL
) goto err
;
381 if (!PKCS7_RECIP_INFO_set(ri
,x509
)) goto err
;
382 if (!PKCS7_add_recipient_info(p7
,ri
)) goto err
;
388 int PKCS7_add_recipient_info(PKCS7
*p7
, PKCS7_RECIP_INFO
*ri
)
391 STACK_OF(PKCS7_RECIP_INFO
) *sk
;
393 i
=OBJ_obj2nid(p7
->type
);
396 case NID_pkcs7_signedAndEnveloped
:
397 sk
= p7
->d
.signed_and_enveloped
->recipientinfo
;
399 case NID_pkcs7_enveloped
:
400 sk
= p7
->d
.enveloped
->recipientinfo
;
403 PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO
,PKCS7_R_WRONG_CONTENT_TYPE
);
407 sk_PKCS7_RECIP_INFO_push(sk
,ri
);
411 int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO
*p7i
, X509
*x509
)
413 ASN1_INTEGER_set(p7i
->version
,0);
414 X509_NAME_set(&p7i
->issuer_and_serial
->issuer
,
415 X509_get_issuer_name(x509
));
417 M_ASN1_INTEGER_free(p7i
->issuer_and_serial
->serial
);
418 p7i
->issuer_and_serial
->serial
=
419 M_ASN1_INTEGER_dup(X509_get_serialNumber(x509
));
421 X509_ALGOR_free(p7i
->key_enc_algor
);
422 p7i
->key_enc_algor
=(X509_ALGOR
*)ASN1_dup(i2d_X509_ALGOR
,
423 (char *(*)())d2i_X509_ALGOR
,
424 (char *)x509
->cert_info
->key
->algor
);
426 CRYPTO_add(&x509
->references
,1,CRYPTO_LOCK_X509
);
432 X509
*PKCS7_cert_from_signer_info(PKCS7
*p7
, PKCS7_SIGNER_INFO
*si
)
434 if (PKCS7_type_is_signed(p7
))
435 return(X509_find_by_issuer_and_serial(p7
->d
.sign
->cert
,
436 si
->issuer_and_serial
->issuer
,
437 si
->issuer_and_serial
->serial
));
442 int PKCS7_set_cipher(PKCS7
*p7
, const EVP_CIPHER
*cipher
)
446 PKCS7_ENC_CONTENT
*ec
;
448 i
=OBJ_obj2nid(p7
->type
);
451 case NID_pkcs7_signedAndEnveloped
:
452 ec
=p7
->d
.signed_and_enveloped
->enc_data
;
454 case NID_pkcs7_enveloped
:
455 ec
=p7
->d
.enveloped
->enc_data
;
458 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER
,PKCS7_R_WRONG_CONTENT_TYPE
);
462 /* Check cipher OID exists and has data in it*/
463 i
= EVP_CIPHER_type(cipher
);
465 PKCS7err(PKCS7_F_PKCS7_SET_CIPHER
,PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER
);
468 objtmp
= OBJ_nid2obj(i
);