1 /* crypto/cms/cms_dd.c */
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
6 /* ====================================================================
7 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
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29 * licensing@OpenSSL.org.
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
35 * 6. Redistributions of any form whatsoever must retain the following
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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52 * ====================================================================
56 #include <openssl/asn1t.h>
57 #include <openssl/pem.h>
58 #include <openssl/x509v3.h>
59 #include <openssl/err.h>
60 #include <openssl/cms.h>
63 DECLARE_ASN1_ITEM(CMS_DigestedData)
65 /* CMS DigestedData Utilities */
67 CMS_ContentInfo *cms_DigestedData_create(const EVP_MD *md)
71 cms = CMS_ContentInfo_new();
75 dd = M_ASN1_new_of(CMS_DigestedData);
80 cms->contentType = OBJ_nid2obj(NID_pkcs7_digest);
81 cms->d.digestedData = dd;
84 dd->encapContentInfo->eContentType = OBJ_nid2obj(NID_pkcs7_data);
86 cms_DigestAlgorithm_set(dd->digestAlgorithm, md);
93 CMS_ContentInfo_free(cms);
98 BIO *cms_DigestedData_init_bio(CMS_ContentInfo *cms)
100 CMS_DigestedData *dd;
101 dd = cms->d.digestedData;
102 return cms_DigestAlgorithm_init_bio(dd->digestAlgorithm);
105 int cms_DigestedData_do_final(CMS_ContentInfo *cms, BIO *chain, int verify)
108 unsigned char md[EVP_MAX_MD_SIZE];
111 CMS_DigestedData *dd;
112 EVP_MD_CTX_init(&mctx);
114 dd = cms->d.digestedData;
116 if (!cms_DigestAlgorithm_find_ctx(&mctx, chain, dd->digestAlgorithm))
119 if (EVP_DigestFinal_ex(&mctx, md, &mdlen) <= 0)
123 if (mdlen != (unsigned int)dd->digest->length) {
124 CMSerr(CMS_F_CMS_DIGESTEDDATA_DO_FINAL,
125 CMS_R_MESSAGEDIGEST_WRONG_LENGTH);
129 if (memcmp(md, dd->digest->data, mdlen))
130 CMSerr(CMS_F_CMS_DIGESTEDDATA_DO_FINAL,
131 CMS_R_VERIFICATION_FAILURE);
135 if (!ASN1_STRING_set(dd->digest, md, mdlen))
141 EVP_MD_CTX_cleanup(&mctx);