97 lines
2.8 KiB
C
97 lines
2.8 KiB
C
/**
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* @file md5sha1.c
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* @version $Format:%h%d$
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*
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* Combined MD5+SHA1 hash for SSL 3.0 and TLS 1.0/1.1 handshake hash.
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*/
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/*
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* Copyright (c) 2013-2016 INSIDE Secure Corporation
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* Copyright (c) PeerSec Networks, 2002-2011
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* All Rights Reserved
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*
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* The latest version of this code is available at http://www.matrixssl.org
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*
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* This software is open source; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This General Public License does NOT permit incorporating this software
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* into proprietary programs. If you are unable to comply with the GPL, a
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* commercial license for this software may be purchased from INSIDE at
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* http://www.insidesecure.com/
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*
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* This program is distributed in WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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* http://www.gnu.org/copyleft/gpl.html
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*/
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/******************************************************************************/
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#include "../cryptoApi.h"
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#ifdef USE_MATRIX_MD5SHA1
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#if !defined(USE_MD5) || !defined(USE_SHA1)
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#error USE_MD5 and USE_SHA1 required
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#endif
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/******************************************************************************/
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/**
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Maintain MD5 and SHA1 hashes of the same data.
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@note This could be done more optimally, give the use of this in TLS.
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Some state is shared between the two contexts, and some paralellism
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could be used in calculation.
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*/
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int32_t psMd5Sha1Init(psMd5Sha1_t *md)
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{
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int32_t rc;
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#ifdef CRYPTO_ASSERT
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psAssert(md);
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#endif
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if ((rc = psMd5Init(&md->md5)) < 0) {
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return rc;
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}
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if ((rc = psSha1Init(&md->sha1)) < 0) {
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/* We call Final to clear the state, ignoring the output */
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psMd5Final(&md->md5, NULL);
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return rc;
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}
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return PS_SUCCESS;
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}
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/**
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Update MD5 and SHA1 hashes of the same data.
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*/
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void psMd5Sha1Update(psMd5Sha1_t *md, const unsigned char *buf,
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uint32_t len)
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{
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#ifdef CRYPTO_ASSERT
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psAssert(md && buf);
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#endif
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psMd5Update(&md->md5, buf, len);
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psSha1Update(&md->sha1, buf, len);
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}
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/**
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Finalize output of the combined MD5-SHA1
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The output is 36 bytes, first the 16 bytes MD5 then the 20 bytes SHA1
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*/
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void psMd5Sha1Final(psMd5Sha1_t *md, unsigned char hash[MD5SHA1_HASHLEN])
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{
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#ifdef CRYPTO_ASSERT
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psAssert(md && hash);
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#endif
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psMd5Final(&md->md5, hash);
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psSha1Final(&md->sha1, hash + MD5_HASHLEN);
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}
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#endif /* USE_MATRIX_MD5SHA1 */
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/******************************************************************************/
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