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/**
* @file hmac_prf.h
*
* @brief Interface of hmac_prf_t.
*
*/
/*
* Copyright (C) 2005-2006 Martin Willi
* Copyright (C) 2005 Jan Hutter
* 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_
typedef struct hmac_prf_t hmac_prf_t;
#include <library.h>
#include <crypto/prfs/prf.h>
#include <crypto/hashers/hasher.h>
/**
* @brief Implementation of prf_t interface using the
* HMAC algorithm.
*
* This simply wraps a hmac_t in a prf_t. More a question of
* interface matching.
*
* @b Constructors:
* - hmac_prf_create()
*
* @ingroup prfs
*/
struct hmac_prf_t {
/**
* Generic prf_t interface for this hmac_prf_t class.
*/
prf_t prf_interface;
};
/**
* @brief Creates a new hmac_prf_t object.
*
* @param hash_algorithm hmac's hash algorithm
* @return
* - hmac_prf_t object
* - NULL if hash not supported
*
* @ingroup prfs
*/
hmac_prf_t *hmac_prf_create(hash_algorithm_t hash_algorithm);
#endif /*PRF_HMAC_SHA1_H_*/
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