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/*
* Copyright (C) 2016 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 newhope_reconciliation newhope_reconciliation
* @{ @ingroup newhope_p
*/
#ifndef NEWHOPE_RECONCILIATION_H_
#define NEWHOPE_RECONCILIATION_H_
typedef struct newhope_reconciliation_t newhope_reconciliation_t;
#include <library.h>
/**
* Class assisting the error reconciliation
* resulting in a key exchange error rate < 2^(-60)
*/
struct newhope_reconciliation_t {
/**
* Generate reconciliation polynomial
*
* @param v polynomial v
* @param rbits pseudo random bit array
* @return return array with reconciliation polynomial
*/
uint8_t* (*help_reconcile)(newhope_reconciliation_t *this,
uint32_t *v, uint8_t *rbits);
/**
* Use reconciliation polynomial r to derive shared secret
*
* @param v polynomial v or v'
* @param r reconciliation polynomial r
* @return Return shared secret
*/
chunk_t (*reconcile)(newhope_reconciliation_t *this,
uint32_t *v, uint8_t *r);
/**
* Destroy a newhope_reconciliation_t object
*/
void (*destroy)(newhope_reconciliation_t *this);
};
/**
* Creates a new newhope_reconciliation_t object.
*
* @param n array size
* @param q prime modulus
* @return newhope_reconciliation_t object
*/
newhope_reconciliation_t *newhope_reconciliation_create(int n, int32_t q);
#endif /** NEWHOPE_RECONCILIATION_H_ @}*/
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