strongswan/src/libstrongswan/plugins/chapoly/chapoly_aead.h

53 lines
1.4 KiB
C

/*
* Copyright (C) 2015 Martin Willi
* Copyright (C) 2015 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 chapoly_aead chapoly_aead
* @{ @ingroup chapoly
*/
#ifndef CHAPOLY_AEAD_H_
#define CHAPOLY_AEAD_H_
#include <crypto/aead.h>
typedef struct chapoly_aead_t chapoly_aead_t;
/**
* ChaCha20/Poly1305 AEAD implementation.
*
* TODO-Chapoly: draft-ietf-ipsecme-chacha20-poly1305-05
*/
struct chapoly_aead_t {
/**
* Implements aead_t interface.
*/
aead_t aead;
};
/**
* Create a chapoly_aead instance.
*
* @param algo algorithm to implement, ENCR_CHACHA20_POLY1305
* @param key_size key size in bytes, 32
* @param salt_size size of implicit salt length, 0
* @return AEAD, NULL if not supported
*/
chapoly_aead_t *chapoly_aead_create(encryption_algorithm_t algo,
size_t key_size, size_t salt_size);
#endif /** CHAPOLY_AEAD_H_ @}*/