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/*
* Copyright (C) 2010 Martin Willi
* Copyright (C) 2010 revosec AG
*
* 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.
*/
/**
* @defgroup ccm_aead ccm_aead
* @{ @ingroup ccm
*/
#ifndef CCM_AEAD_H_
#define CCM_AEAD_H_
#include <crypto/aead.h>
typedef struct ccm_aead_t ccm_aead_t;
/**
* Counter with Cipher Block Chaining-Message Authentication Code (CCM).
*
* Implements CCM as specified in NIST 800-38B, using AEAD semantics from
* RFC 5282, based on RFC4309.
*/
struct ccm_aead_t {
/**
* Implements aead_t interface.
*/
aead_t aead;
};
/**
* Create a ccm_aead instance.
*
* @param algo algorithm to implement, a CCM mode
* @param key_size key size in bytes
* @return aead, NULL if not supported
*/
ccm_aead_t *ccm_aead_create(encryption_algorithm_t algo, size_t key_size);
#endif /** CCM_AEAD_H_ @}*/
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