Files
mars-matrixssl/crypto/digest/md5sha1.c
2016-04-15 15:12:52 -07:00

97 lines
2.8 KiB
C

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