64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/*
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* Copyright (C) 2013-2016 Andreas Steffen
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* HSR Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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/**
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* @defgroup ntru_trits ntru_trits
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* @{ @ingroup ntru_p
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*/
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#ifndef NTRU_TRITS_H_
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#define NTRU_TRITS_H_
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typedef struct ntru_trits_t ntru_trits_t;
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#include <library.h>
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#include <crypto/xofs/xof.h>
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/**
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* Implements an array of trinary elements (trits)
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*/
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struct ntru_trits_t {
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/**
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* Get the size of the trits array
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*
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* @return number of trinary elements
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*/
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size_t (*get_size)(ntru_trits_t *this);
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/**
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* @return octet array containing a trit per octet
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*/
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uint8_t* (*get_trits)(ntru_trits_t *this);
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/**
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* Destroy ntru_trits_t object
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*/
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void (*destroy)(ntru_trits_t *this);
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};
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/**
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* Create a trits array from a seed using MGF1 with a base hash function
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*
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* @param size size of the trits array
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* @param alg MGF1 algorithm used (XOF_MGF1_SHA1 or XOF_MGF_SHA256)
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* @param seed seed used by MGF1 to generate trits from
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*/
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ntru_trits_t *ntru_trits_create(size_t size, ext_out_function_t alg,
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chunk_t seed);
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#endif /** NTRU_TRITS_H_ @}*/
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