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 * ====================================================================
54 #include "internal/cryptlib.h"
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>
62 /* CMS DigestedData Utilities */
64 CMS_ContentInfo
*cms_DigestedData_create(const EVP_MD
*md
)
68 cms
= CMS_ContentInfo_new();
72 dd
= M_ASN1_new_of(CMS_DigestedData
);
77 cms
->contentType
= OBJ_nid2obj(NID_pkcs7_digest
);
78 cms
->d
.digestedData
= dd
;
81 dd
->encapContentInfo
->eContentType
= OBJ_nid2obj(NID_pkcs7_data
);
83 X509_ALGOR_set_md(dd
->digestAlgorithm
, md
);
88 CMS_ContentInfo_free(cms
);
92 BIO
*cms_DigestedData_init_bio(CMS_ContentInfo
*cms
)
95 dd
= cms
->d
.digestedData
;
96 return cms_DigestAlgorithm_init_bio(dd
->digestAlgorithm
);
99 int cms_DigestedData_do_final(CMS_ContentInfo
*cms
, BIO
*chain
, int verify
)
101 EVP_MD_CTX
*mctx
= EVP_MD_CTX_new();
102 unsigned char md
[EVP_MAX_MD_SIZE
];
105 CMS_DigestedData
*dd
;
108 CMSerr(CMS_F_CMS_DIGESTEDDATA_DO_FINAL
, ERR_R_MALLOC_FAILURE
);
112 dd
= cms
->d
.digestedData
;
114 if (!cms_DigestAlgorithm_find_ctx(mctx
, chain
, dd
->digestAlgorithm
))
117 if (EVP_DigestFinal_ex(mctx
, md
, &mdlen
) <= 0)
121 if (mdlen
!= (unsigned int)dd
->digest
->length
) {
122 CMSerr(CMS_F_CMS_DIGESTEDDATA_DO_FINAL
,
123 CMS_R_MESSAGEDIGEST_WRONG_LENGTH
);
127 if (memcmp(md
, dd
->digest
->data
, mdlen
))
128 CMSerr(CMS_F_CMS_DIGESTEDDATA_DO_FINAL
,
129 CMS_R_VERIFICATION_FAILURE
);
133 if (!ASN1_STRING_set(dd
->digest
, md
, mdlen
))
139 EVP_MD_CTX_free(mctx
);