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/*
* Copyright (C) 2013 Andreas Steffen
* HSR 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.
*/
/**
* @defgroup ntru_trits ntru_trits
* @{ @ingroup ntru_p
*/
#ifndef NTRU_TRITS_H_
#define NTRU_TRITS_H_
typedef struct ntru_trits_t ntru_trits_t;
#include <library.h>
/**
* Implements an array of trinary elements (trits)
*/
struct ntru_trits_t {
/**
* Get the size of the trits array
*
* @return number of trinary elements
*/
size_t (*get_size)(ntru_trits_t *this);
/**
* @return octet array containing a trit per octet
*/
uint8_t* (*get_trits)(ntru_trits_t *this);
/**
* Destroy ntru_trits_t object
*/
void (*destroy)(ntru_trits_t *this);
};
/**
* Create a trits array from a seed using MGF1 with a base hash function
*
* @param size size of the trits array
* @param alg hash algorithm to be used by MGF1
* @param seed seed used by MGF1 to generate trits from
*/
ntru_trits_t *ntru_trits_create(size_t size, hash_algorithm_t alg, chunk_t seed);
#endif /** NTRU_TRITS_H_ @}*/
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