/*
 *      Copyright (C) 2000 Nikos Mavroyanopoulos
 *
 * This file is part of GNUTLS.
 *
 * GNUTLS 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.
 *
 * GNUTLS 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 GNUTLS_HASH_INT_H
# define GNUTLS_HASH_INT_H

#include <gnutls_int.h>

/* for message digests */

typedef struct {
	gcry_md_hd_t handle;
	gnutls_mac_algorithm algorithm;
	const void* key;
	int keysize;
} mac_hd_t_INT;
typedef mac_hd_t_INT* mac_hd_t;
typedef mac_hd_t GNUTLS_HASH_HANDLE;

#define GNUTLS_HASH_FAILED NULL
#define GNUTLS_MAC_FAILED NULL

mac_hd_t _gnutls_hmac_init( gnutls_mac_algorithm algorithm, const void* key, int keylen);
#define _gnutls_hmac_get_algo_len _gnutls_hash_get_algo_len
#define _gnutls_hmac _gnutls_hash
void _gnutls_hmac_deinit( mac_hd_t handle, void* digest);

mac_hd_t _gnutls_mac_init_ssl3( gnutls_mac_algorithm algorithm, void* key, int keylen);
void _gnutls_mac_deinit_ssl3( mac_hd_t handle, void* digest);

GNUTLS_HASH_HANDLE _gnutls_hash_init(gnutls_mac_algorithm algorithm);
int _gnutls_hash_get_algo_len(gnutls_mac_algorithm algorithm);
int _gnutls_hash(GNUTLS_HASH_HANDLE handle, const void* text, size_t textlen);
void _gnutls_hash_deinit(GNUTLS_HASH_HANDLE handle, void* digest);

int _gnutls_ssl3_generate_random(void *secret, int secret_len, void *random, int random_len, int bytes, opaque* ret);
int _gnutls_ssl3_hash_md5(void *first, int first_len, 
	void *second, int second_len, int ret_len, opaque* ret);

void _gnutls_mac_deinit_ssl3_handshake(mac_hd_t handle, void* digest, opaque* key, uint32 key_size);

GNUTLS_HASH_HANDLE _gnutls_hash_copy(GNUTLS_HASH_HANDLE handle);

#endif /* GNUTLS_HASH_INT_H */