/*
 *****************************************************************************
 *
 * File:    hmac.h
 *
 * Author:  Michael Rash
 *
 * Purpose: Provide HMAC support to SPA communications
 *
 * Copyright 2012 Michael Rash (mbr@cipherdyne.org)
 *
 *  License (GNU Public License):
 *
 *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 *
 *****************************************************************************
*/
#ifndef HMAC_H
#define HMAC_H 1

#include "digest.h"

#define MAX_DIGEST_BLOCK_LEN    SHA512_BLOCK_LEN

void hmac_md5(const char *msg, const unsigned int msg_len,
        unsigned char *hmac, const char *hmac_key, const int hmac_key_len);
void hmac_sha1(const char *msg, const unsigned int msg_len,
        unsigned char *hmac, const char *hmac_key, const int hmac_key_len);
void hmac_sha256(const char *msg, const unsigned int msg_len,
        unsigned char *hmac, const char *hmac_key, const int hmac_key_len);
void hmac_sha384(const char *msg, const unsigned int msg_len,
        unsigned char *hmac, const char *hmac_key, const int hmac_key_len);
void hmac_sha512(const char *msg, const unsigned int msg_len,
        unsigned char *hmac, const char *hmac_key, const int hmac_key_len);

#endif /* HMAC_H */

/***EOF***/