* 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 ECP_NISTP256_H
#define ECP_NISTP256_H
#include "hitls_build.h"
#if defined(HITLS_CRYPTO_CURVE_NISTP256) && defined(HITLS_CRYPTO_NIST_ECC_ACCELERATE)
#include "ecc_local.h"
#ifdef __cplusplus
extern "C" {
#endif
* @brief Convert the point information pt to the affine coordinate system and refresh the data to r.
*
* @param para [IN] Curve parameters
* @param r [OUT] Output point information
* @param pt [IN] Input point information
*
* @retval CRYPT_SUCCESS succeeded
* @retval For details about other errors, see crypt_errno.h
*/
int32_t ECP256_Point2Affine(const ECC_Para *para, ECC_Point *r, const ECC_Point *pt);
* @brief Calculate r = k1 * G + k2 * pt
*
* @param para [IN] Curve parameters
* @param r [OUT] Output point information
* @param k1 [IN] Scalar 1, with a maximum of 256 bits
* @param k2 [IN] Scalar 2, with a maximum of 256 bits
* @param pt [IN] Point data
*
* @retval CRYPT_SUCCESS succeeded
* @retval For details about other errors, see crypt_errno.h
*/
int32_t ECP256_PointMulAdd(ECC_Para *para, ECC_Point *r,
const BN_BigNum *k1, const BN_BigNum *k2, const ECC_Point *pt);
* @brief If pt != NULL, calculate r = k * pt; Otherwise, calculate r = k * G
*
* @param para [IN] Curve parameter information
* @param r [OUT] Output point information
* @param k [IN] Scalar, with a maximum of 256 bits
* @param pt [IN] Point data, which can be set to NULL.
*
* @retval CRYPT_SUCCESS succeeded
* @retval For details about other errors, see crypt_errno.h
*/
int32_t ECP256_PointMul(ECC_Para *para, ECC_Point *r, const BN_BigNum *k, const ECC_Point *pt);
* @brief Calculate r = 1/a mod para->n
*
* @param para [IN] Curve parameter information
* @param r [OUT] Output modulus inverse value
* @param a [IN] input BigNum that needs to be inverted.
*
* @retval CRYPT_SUCCESS succeeded
* @retval For details about other errors, see crypt_errno.h
*/
int32_t ECP256_ModOrderInv(const ECC_Para *para, BN_BigNum *r, const BN_BigNum *a);
#ifdef __cplusplus
}
#endif
#endif
#endif