1 /* 2 * Copyright (c) 2022-2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #ifndef __HVB_SM2_BN_H__ 16 #define __HVB_SM2_BN_H__ 17 18 #include <stdint.h> 19 #include "hvb_gm_common.h" 20 21 #define SM2_SWORD_BIT_SIZE 32 22 #define SM2_KEY_LEN 32 23 #define SM2_DATA_DWORD_SIZE 4 24 #define SM2_BN_OK 0 25 #define SM2_BN_INVALID (-1) 26 #define SM2_BN_NOT_INDOMAIN (-2) 27 #define SM2_BN_MEMORY_ERR (-3) 28 29 30 struct sm2_point_jcb { 31 uint64_t x[SM2_DATA_DWORD_SIZE]; 32 uint64_t y[SM2_DATA_DWORD_SIZE]; 33 uint64_t z[SM2_DATA_DWORD_SIZE]; 34 }; 35 36 struct sm2_point_aff { 37 uint64_t x[SM2_DATA_DWORD_SIZE]; 38 uint64_t y[SM2_DATA_DWORD_SIZE]; 39 }; 40 41 void invert_copy_byte(uint8_t *dst, uint8_t *src, uint32_t len); 42 43 uint8_t *sm2_bn_get_param_a(void); 44 45 uint8_t *sm2_bn_get_param_b(void); 46 47 uint8_t *sm2_bn_get_param_gx(void); 48 49 uint8_t *sm2_bn_get_param_gy(void); 50 51 int sm2_bn_check_indomain_n(uint64_t a[]); 52 53 int sm2_bn_add_mod_n(uint64_t a[], uint64_t b[], uint64_t r[]); 54 55 int sm2_bn_is_valid(uint64_t a[]); 56 57 int sm2_bn_cmp(uint64_t a[], uint64_t b[]); 58 59 int sm2_point_mul_add(const uint64_t k1[], const uint64_t k2[], struct sm2_point_aff *p, 60 struct sm2_point_aff *r); 61 62 #endif