1 /* 2 * Copyright (C) 2017 - This file is part of libecc project 3 * 4 * Authors: 5 * Ryad BENADJILA <ryadbenadjila@gmail.com> 6 * Arnaud EBALARD <arnaud.ebalard@ssi.gouv.fr> 7 * Jean-Pierre FLORI <jean-pierre.flori@ssi.gouv.fr> 8 * 9 * Contributors: 10 * Nicolas VIVET <nicolas.vivet@ssi.gouv.fr> 11 * Karim KHALFALLAH <karim.khalfallah@ssi.gouv.fr> 12 * 13 * This software is licensed under a dual BSD and GPL v2 license. 14 * See LICENSE file at the root folder of the project. 15 */ 16 #ifndef __EC_EDWARDS_H__ 17 #define __EC_EDWARDS_H__ 18 19 #include <libecc/nn/nn.h> 20 #include <libecc/fp/fp.h> 21 #include <libecc/fp/fp_add.h> 22 #include <libecc/fp/fp_mul.h> 23 #include <libecc/fp/fp_mul_redc1.h> 24 25 typedef struct { 26 fp a; 27 fp d; 28 nn order; 29 word_t magic; 30 } ec_edwards_crv; 31 32 typedef ec_edwards_crv *ec_edwards_crv_t; 33 typedef const ec_edwards_crv *ec_edwards_crv_src_t; 34 35 ATTRIBUTE_WARN_UNUSED_RET int ec_edwards_crv_check_initialized(ec_edwards_crv_src_t crv); 36 ATTRIBUTE_WARN_UNUSED_RET int ec_edwards_crv_init(ec_edwards_crv_t crv, fp_src_t a, fp_src_t b, nn_src_t order); 37 void ec_edwards_crv_uninit(ec_edwards_crv_t crv); 38 39 #endif /* __EC_EDWARDS_H__ */ 40