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/*
* FIPS-180-1 compliant SHA-1 implementation
*
* $Id$
*
* Copyright (C) 2001-2003 Christophe Devine
* Copyright (C) 2012 Chris Elston, Katalix Systems Ltd <celston@katalix.com>
*
* This program is free software; 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 program is distributed in the hope that it will be useful,
* but 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Changed to use guint instead of uint 2004 by Anders Broman
* Original code found at http://www.cr0.net:8040/code/crypto/sha1/
* References: http://www.ietf.org/rfc/rfc3174.txt?number=3174
*
* 2012-08-21 - C Elston - Split sha1_hmac function to allow incremental usage.
*/
#ifndef _SHA1_H
#define _SHA1_H
typedef struct
{
guint32 total[2];
guint32 state[5];
guint8 buffer[64];
}
sha1_context;
void sha1_starts( sha1_context *ctx );
void sha1_update( sha1_context *ctx, const guint8 *input, guint32 length );
void sha1_finish( sha1_context *ctx, guint8 digest[20] );
typedef struct {
sha1_context ctx;
guint8 k_opad[64];
}
sha1_hmac_context;
void sha1_hmac_starts( sha1_hmac_context *hctx, const guint8 *key, guint32 keylen );
void sha1_hmac_update( sha1_hmac_context *hctx, const guint8 *buf, guint32 buflen );
void sha1_hmac_finish( sha1_hmac_context *hctx, guint8 digest[20] );
void sha1_hmac( const guint8 *key, guint32 keylen, const guint8 *buf, guint32 buflen,
guint8 digest[20] );
#endif /* sha1.h */
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