hmac.h

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/*
  Copyright (C) 2005, 2004, 2010 Erik Eliasson, Johan Bilien, Werner Dittmann

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 * In addition, as a special exception, the copyright holders give
 * permission to link the code of portions of this program with the
 * OpenSSL library under certain conditions as described in each
 * individual source file, and distribute linked combinations
 * including the two.
 * You must obey the GNU General Public License in all respects
 * for all of the code used other than OpenSSL.  If you modify
 * file(s) with this exception, you may extend this exception to your
 * version of the file(s), but you are not obligated to do so.  If you
 * do not wish to do so, delete this exception statement from your
 * version.  If you delete this exception statement from all source
 * files in the program, then also delete it here.
 */

#ifndef HMAC_H
#define HMAC_H

#include <stdint.h>

#ifndef SHA1_DIGEST_LENGTH
#define SHA1_DIGEST_LENGTH 20
#endif

void hmac_sha1( uint8_t* key, int32_t key_length,
                const uint8_t* data, uint32_t data_length,
                uint8_t* mac, int32_t* mac_length );

void hmac_sha1( uint8_t* key, int32_t key_length,
                const uint8_t* data[], uint32_t data_length[],
                uint8_t* mac, int32_t* mac_length );

void* createSha1HmacContext(uint8_t* key, int32_t key_length);

void hmacSha1Ctx(void* ctx, const uint8_t* data, uint32_t data_length,
                uint8_t* mac, int32_t* mac_length );

void hmacSha1Ctx(void* ctx, const uint8_t* data[], uint32_t data_length[],
                uint8_t* mac, int32_t* mac_length );

void freeSha1HmacContext(void* ctx);


#endif