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1.1 misho 1: /* 2: * Copyright (C) 2016 Andreas Steffen 3: * HSR Hochschule fuer Technik Rapperswil 4: * 5: * This program is free software; you can redistribute it and/or modify it 6: * under the terms of the GNU General Public License as published by the 7: * Free Software Foundation; either version 2 of the License, or (at your 8: * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. 9: * 10: * This program is distributed in the hope that it will be useful, but 11: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 12: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13: * for more details. 14: */ 15: 16: /** 17: * @defgroup newhope_reconciliation newhope_reconciliation 18: * @{ @ingroup newhope_p 19: */ 20: 21: #ifndef NEWHOPE_RECONCILIATION_H_ 22: #define NEWHOPE_RECONCILIATION_H_ 23: 24: typedef struct newhope_reconciliation_t newhope_reconciliation_t; 25: 26: #include <library.h> 27: 28: /** 29: * Class assisting the error reconciliation 30: * resulting in a key exchange error rate < 2^(-60) 31: */ 32: struct newhope_reconciliation_t { 33: 34: /** 35: * Generate reconciliation polynomial 36: * 37: * @param v polynomial v 38: * @param rbits pseudo random bit array 39: * @return return array with reconciliation polynomial 40: */ 41: uint8_t* (*help_reconcile)(newhope_reconciliation_t *this, 42: uint32_t *v, uint8_t *rbits); 43: 44: /** 45: * Use reconciliation polynomial r to derive shared secret 46: * 47: * @param v polynomial v or v' 48: * @param r reconciliation polynomial r 49: * @return Return shared secret 50: */ 51: chunk_t (*reconcile)(newhope_reconciliation_t *this, 52: uint32_t *v, uint8_t *r); 53: 54: /** 55: * Destroy a newhope_reconciliation_t object 56: */ 57: void (*destroy)(newhope_reconciliation_t *this); 58: }; 59: 60: /** 61: * Creates a new newhope_reconciliation_t object. 62: * 63: * @param n array size 64: * @param q prime modulus 65: * @return newhope_reconciliation_t object 66: */ 67: newhope_reconciliation_t *newhope_reconciliation_create(int n, int32_t q); 68: 69: #endif /** NEWHOPE_RECONCILIATION_H_ @}*/ 70: