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);