sm9_fp.h

/*
 * This file is part of the openHiTLS project.
 *
 * openHiTLS is licensed under the Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *
 *     http://license.coscl.org.cn/MulanPSL2
 *
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */
 
#ifndef _SM9_FP_H_
#define _SM9_FP_H_
 
#include "hitls_build.h"
#ifdef HITLS_CRYPTO_SM9
 
#include "sm9_bn.h"
#include "sm9_curve.h"
#include <string.h>
 
// Field P
#define SM9_Fp_Assign(Fpz, Fp_x)        \
    do {    \
        if ((Fpz) != (Fp_x))    \
            memcpy((Fpz), (Fp_x), 4 * sm9_sys_para.wsize);    \
    } while (0)
#define SM9_Fp_SetOne(Fpz)        \
    memcpy(Fpz, sm9_sys_para.Q_R1, 4 * sm9_sys_para.wsize)
#define SM9_Fq_IsZero(Fpx)        \
    bn_is_zero(Fpx, sm9_sys_para.wsize)
 
#define SM9_Fp_Add(Fp_z, Fp_x, Fp_y)    \
    bn_mod_add(Fp_z, Fp_x, Fp_y, sm9_sys_para.EC_Q, sm9_sys_para.wsize)
 
#define SM9_Fp_Sub(Fp_z, Fp_x, Fp_y)    \
    bn_mod_sub(Fp_z, Fp_x, Fp_y, sm9_sys_para.EC_Q, sm9_sys_para.wsize)
 
#define SM9_Fp_Neg(Fp_z, Fp_x)    \
    bn_mod_sub(Fp_z, sm9_sys_para.EC_Q, Fp_x, sm9_sys_para.EC_Q, sm9_sys_para.wsize)
 
#define SM9_Fp_LastRes(Fp_x)    \
    bn_get_res(Fp_x, sm9_sys_para.EC_Q, sm9_sys_para.wsize)
 
#define SM9_Fp_Mul(Fp_z, Fp_x, Fp_y)    \
    bn_mont_mul(Fp_z, Fp_x, Fp_y, sm9_sys_para.EC_Q, sm9_sys_para.Q_Mc, sm9_sys_para.wsize)
 
#define SM9_Fp_Squ(Fp_z, Fp_x)    \
    bn_mont_mul(Fp_z, Fp_x, Fp_x, sm9_sys_para.EC_Q, sm9_sys_para.Q_Mc, sm9_sys_para.wsize)
 
#define SM9_Fp_Inv(Fp_z, Fp_x)    \
    do {    \
        bn_mont_mul(Fp_z, Fp_x, sm9_sys_para.EC_One, sm9_sys_para.EC_Q, sm9_sys_para.Q_Mc, sm9_sys_para.wsize); \
        BN_GetInv_Mont(Fp_z, Fp_z, sm9_sys_para.EC_Q, sm9_sys_para.Q_Mc, sm9_sys_para.Q_R2, sm9_sys_para.wsize); \
    } while (0)
 
#define SM9_Fp_MulRoot(Fp_z, Fp_x)    \
    bn_mont_mul(Fp_z, Fp_x, sm9_sys_para.EC_Root_Mont, sm9_sys_para.EC_Q, sm9_sys_para.Q_Mc, sm9_sys_para.wsize);
 
// Field N
#define SM9_Bn_ReadBytes(x, src)    \
    ByteToBN(src, BNByteLen, x, BNWordLen)
 
#define SM9_Bn_IsZero(x)    \
    bn_is_zero(x, sm9_sys_para.wsize)
 
#define SM9_Fn_LastRes(Fp_x)    \
    bn_get_res(Fp_x, sm9_sys_para.EC_N, sm9_sys_para.wsize)
 
#define SM9_Fn_Sub(Fn_z, Fn_x, Fn_y)    \
    bn_mod_sub(Fn_z, Fn_x, Fn_y, sm9_sys_para.EC_N, sm9_sys_para.wsize)
 
#define SM9_Fn_Add(Fn_z, Fn_x, Fn_y)    \
    bn_mod_add(Fn_z, Fn_x, Fn_y, sm9_sys_para.EC_N, sm9_sys_para.wsize)
 
#ifdef  __cplusplus
extern "C" {
#endif
 
void SM9_Fp_ReadBytes(uint32_t *dst, const uint8_t *src);
 
void SM9_Fp_WriteBytes(uint8_t *dst, uint32_t *src);
 
#ifdef  __cplusplus
}
#endif
 
#endif // HITLS_CRYPTO_SM9
 
#endif // !_SM9_FP_H_