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/**
* @file prf_hmac.h
*
* @brief Implementation of prf_t interface using the
* a HMAC algorithm. This simply wraps a hmac in a prf.
*
*/
/*
* Copyright (C) 2005 Jan Hutter, Martin Willi
* Hochschule fuer Technik Rapperswil
*
* 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. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* 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.
*/
#ifndef PRF_HMAC_H_
#define PRF_HMAC_H_
#include "prf.h"
#include <types.h>
#include <transforms/hashers/hasher.h>
typedef struct prf_hmac_t prf_hmac_t;
/**
* Object representing a prf using HMAC
*
*/
struct prf_hmac_t {
/**
* generic prf_t interface for this prf
*/
prf_t prf_interface;
};
/**
* Creates a new prf_hmac_t object
*
* @param hash_algorithm hmac's hash algorithm
* @return
* - prf_hmac_t if successfully
* - NULL if out of ressources
*/
prf_hmac_t *prf_hmac_create(hash_algorithm_t hash_algorithm);
#endif /*PRF_HMAC_SHA1_H_*/
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