1 files changed, 148 insertions, 0 deletions
diff --git a/openssl/crypto/cms/cms_dd.c b/openssl/crypto/cms/cms_dd.c
new file mode 100644
index 000000000..8919c15be
--- /dev/null
+++ b/openssl/crypto/cms/cms_dd.c
@@ -0,0 +1,148 @@
+/* crypto/cms/cms_dd.c */
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project.
+ */
+/* ====================================================================
+ * Copyright (c) 2008 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ */
+
+#include "cryptlib.h"
+#include <openssl/asn1t.h>
+#include <openssl/pem.h>
+#include <openssl/x509v3.h>
+#include <openssl/err.h>
+#include <openssl/cms.h>
+#include "cms_lcl.h"
+
+DECLARE_ASN1_ITEM(CMS_DigestedData)
+
+/* CMS DigestedData Utilities */
+
+CMS_ContentInfo *cms_DigestedData_create(const EVP_MD *md)
+	{
+	CMS_ContentInfo *cms;
+	CMS_DigestedData *dd;
+	cms = CMS_ContentInfo_new();
+	if (!cms)
+		return NULL;
+
+	dd = M_ASN1_new_of(CMS_DigestedData);
+
+	if (!dd)
+		goto err;
+
+	cms->contentType = OBJ_nid2obj(NID_pkcs7_digest);
+	cms->d.digestedData = dd;
+
+	dd->version = 0;
+	dd->encapContentInfo->eContentType = OBJ_nid2obj(NID_pkcs7_data);
+
+	cms_DigestAlgorithm_set(dd->digestAlgorithm, md);
+
+	return cms;
+
+	err:
+
+	if (cms)
+		CMS_ContentInfo_free(cms);
+
+	return NULL;
+	}
+
+BIO *cms_DigestedData_init_bio(CMS_ContentInfo *cms)
+	{
+	CMS_DigestedData *dd;
+	dd = cms->d.digestedData;
+	return cms_DigestAlgorithm_init_bio(dd->digestAlgorithm);
+	}
+
+int cms_DigestedData_do_final(CMS_ContentInfo *cms, BIO *chain, int verify)
+	{
+	EVP_MD_CTX mctx;
+	unsigned char md[EVP_MAX_MD_SIZE];
+	unsigned int mdlen;
+	int r = 0;
+	CMS_DigestedData *dd;
+	EVP_MD_CTX_init(&mctx);
+
+	dd = cms->d.digestedData;
+
+	if (!cms_DigestAlgorithm_find_ctx(&mctx, chain, dd->digestAlgorithm))
+		goto err;
+
+	if (EVP_DigestFinal_ex(&mctx, md, &mdlen) <= 0)
+		goto err;
+
+	if (verify)
+		{
+		if (mdlen != (unsigned int)dd->digest->length)
+			{
+			CMSerr(CMS_F_CMS_DIGESTEDDATA_DO_FINAL,
+				CMS_R_MESSAGEDIGEST_WRONG_LENGTH);
+			goto err;
+			}
+
+		if (memcmp(md, dd->digest->data, mdlen))
+			CMSerr(CMS_F_CMS_DIGESTEDDATA_DO_FINAL,
+				CMS_R_VERIFICATION_FAILURE);
+		else
+			r = 1;
+		}
+	else
+		{
+		if (!ASN1_STRING_set(dd->digest, md, mdlen))
+			goto err;
+		r = 1;
+		}
+
+	err:
+	EVP_MD_CTX_cleanup(&mctx);
+
+	return r;
+
+	}