1 /* crypto/cms/cms_env.c */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
55 #include <openssl/asn1t.h>
56 #include <openssl/pem.h>
57 #include <openssl/x509v3.h>
58 #include <openssl/err.h>
59 #include <openssl/cms.h>
60 #include <openssl/rand.h>
62 #include "asn1_locl.h"
64 /* CMS EnvelopedData Utilities */
66 DECLARE_ASN1_ITEM(CMS_EnvelopedData
)
67 DECLARE_ASN1_ITEM(CMS_RecipientInfo
)
68 DECLARE_ASN1_ITEM(CMS_KeyTransRecipientInfo
)
70 DECLARE_STACK_OF(CMS_RecipientInfo
)
72 static CMS_EnvelopedData
*cms_get0_enveloped(CMS_ContentInfo
*cms
)
74 if (OBJ_obj2nid(cms
->contentType
) != NID_pkcs7_enveloped
)
76 CMSerr(CMS_F_CMS_GET0_ENVELOPED
,
77 CMS_R_CONTENT_TYPE_NOT_ENVELOPED_DATA
);
80 return cms
->d
.envelopedData
;
83 static CMS_EnvelopedData
*cms_enveloped_data_init(CMS_ContentInfo
*cms
)
85 if (cms
->d
.other
== NULL
)
87 cms
->d
.envelopedData
= M_ASN1_new_of(CMS_EnvelopedData
);
88 if (!cms
->d
.envelopedData
)
90 CMSerr(CMS_F_CMS_ENVELOPED_DATA_INIT
,
91 ERR_R_MALLOC_FAILURE
);
94 cms
->d
.envelopedData
->version
= 0;
95 cms
->d
.envelopedData
->encryptedContentInfo
->contentType
=
96 OBJ_nid2obj(NID_pkcs7_data
);
97 ASN1_OBJECT_free(cms
->contentType
);
98 cms
->contentType
= OBJ_nid2obj(NID_pkcs7_enveloped
);
99 return cms
->d
.envelopedData
;
101 return cms_get0_enveloped(cms
);
104 /* Add a recipient certificate. For now only handle key transport.
105 * If we ever handle key agreement will need updating.
108 CMS_RecipientInfo
*CMS_add1_recipient_cert(CMS_ContentInfo
*cms
,
109 X509
*recip
, unsigned int flags
)
111 CMS_RecipientInfo
*ri
= NULL
;
112 CMS_KeyTransRecipientInfo
*ktri
;
113 CMS_EnvelopedData
*env
;
116 /* Init enveloped data */
117 env
= cms_enveloped_data_init(cms
);
121 /* Initialized recipient info */
122 ri
= M_ASN1_new_of(CMS_RecipientInfo
);
126 /* Initialize and add key transrport recipient info */
128 ri
->d
.ktri
= M_ASN1_new_of(CMS_KeyTransRecipientInfo
);
131 ri
->type
= CMS_RECIPINFO_TRANS
;
135 X509_check_purpose(recip
, -1, -1);
136 pk
= X509_get_pubkey(recip
);
139 CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT
,
140 CMS_R_ERROR_GETTING_PUBLIC_KEY
);
143 CRYPTO_add(&recip
->references
, 1, CRYPTO_LOCK_X509
);
144 CRYPTO_add(&pk
->references
, 1, CRYPTO_LOCK_EVP_PKEY
);
148 if (flags
& CMS_USE_KEYID
)
151 type
= CMS_RECIPINFO_KEYIDENTIFIER
;
156 type
= CMS_RECIPINFO_ISSUER_SERIAL
;
159 /* Not a typo: RecipientIdentifier and SignerIdentifier are the
163 if (!cms_set1_SignerIdentifier(ktri
->rid
, recip
, type
))
166 if (pk
->ameth
&& pk
->ameth
->pkey_ctrl
)
168 i
= pk
->ameth
->pkey_ctrl(pk
, ASN1_PKEY_CTRL_CMS_ENVELOPE
,
172 CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT
,
173 CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE
);
178 CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT
,
184 if (!sk_CMS_RecipientInfo_push(env
->recipientInfos
, ri
))
190 CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT
, ERR_R_MALLOC_FAILURE
);
193 M_ASN1_free_of(ri
, CMS_RecipientInfo
);
198 int CMS_RecipientInfo_ktri_get0_algs(CMS_RecipientInfo
*ri
,
199 EVP_PKEY
**pk
, X509
**recip
,
202 CMS_KeyTransRecipientInfo
*ktri
;
203 if (ri
->type
!= CMS_RECIPINFO_TRANS
)
205 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_GET0_ALGS
,
206 CMS_R_NOT_KEY_TRANSPORT
);
215 *recip
= ktri
->recip
;
217 *palg
= ktri
->keyEncryptionAlgorithm
;
221 int CMS_RecipientInfo_ktri_get0_signer_id(CMS_RecipientInfo
*ri
,
222 ASN1_OCTET_STRING
**keyid
,
223 X509_NAME
**issuer
, ASN1_INTEGER
**sno
)
225 CMS_KeyTransRecipientInfo
*ktri
;
226 if (ri
->type
!= CMS_RECIPINFO_TRANS
)
228 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_GET0_SIGNER_ID
,
229 CMS_R_NOT_KEY_TRANSPORT
);
233 return cms_SignerIdentifier_get0_signer_id(ktri
->rid
,
237 int CMS_RecipientInfo_ktri_cert_cmp(CMS_RecipientInfo
*ri
, X509
*cert
)
239 CMS_KeyTransRecipientInfo
*ktri
;
240 if (ri
->type
!= CMS_RECIPINFO_TRANS
)
242 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_CERT_CMP
,
243 CMS_R_NOT_KEY_TRANSPORT
);
247 return cms_SignerIdentifier_cert_cmp(ktri
->rid
, cert
);