-/* crypto/dh/dh_kdf.c */
/*
- * Written by Stephen Henson for the OpenSSL project.
- */
-/* ====================================================================
- * Copyright (c) 2013 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/)"
+ * Copyright 2013-2016 The OpenSSL Project Authors. All Rights Reserved.
*
- * 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
- * openssl-core@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.
- * ====================================================================
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
-#include <e_os.h>
+#include "e_os.h"
#ifndef OPENSSL_NO_CMS
#include <string.h>
ASN1_OBJECT *key_oid,
const unsigned char *ukm, size_t ukmlen, const EVP_MD *md)
{
- EVP_MD_CTX mctx;
+ EVP_MD_CTX *mctx = NULL;
int rv = 0;
unsigned int i;
size_t mdlen;
int derlen;
if (Zlen > DH_KDF_MAX)
return 0;
+ mctx = EVP_MD_CTX_new();
+ if (mctx == NULL)
+ return 0;
mdlen = EVP_MD_size(md);
- EVP_MD_CTX_init(&mctx);
derlen = dh_sharedinfo_encode(&der, &ctr, key_oid, outlen, ukm, ukmlen);
if (derlen == 0)
goto err;
for (i = 1;; i++) {
unsigned char mtmp[EVP_MAX_MD_SIZE];
- EVP_DigestInit_ex(&mctx, md, NULL);
- if (!EVP_DigestUpdate(&mctx, Z, Zlen))
+ if (!EVP_DigestInit_ex(mctx, md, NULL)
+ || !EVP_DigestUpdate(mctx, Z, Zlen))
goto err;
ctr[3] = i & 0xFF;
ctr[2] = (i >> 8) & 0xFF;
ctr[1] = (i >> 16) & 0xFF;
ctr[0] = (i >> 24) & 0xFF;
- if (!EVP_DigestUpdate(&mctx, der, derlen))
+ if (!EVP_DigestUpdate(mctx, der, derlen))
goto err;
if (outlen >= mdlen) {
- if (!EVP_DigestFinal(&mctx, out, NULL))
+ if (!EVP_DigestFinal(mctx, out, NULL))
goto err;
outlen -= mdlen;
if (outlen == 0)
break;
out += mdlen;
} else {
- if (!EVP_DigestFinal(&mctx, mtmp, NULL))
+ if (!EVP_DigestFinal(mctx, mtmp, NULL))
goto err;
memcpy(out, mtmp, outlen);
OPENSSL_cleanse(mtmp, mdlen);
rv = 1;
err:
OPENSSL_free(der);
- EVP_MD_CTX_cleanup(&mctx);
+ EVP_MD_CTX_free(mctx);
return rv;
}
#endif