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/*
* Copyright (C) 2017-2022 Alibaba Group Holding Limited
*/
/******************************************************************************
* @file sec_crypto_ecdh.h
* @brief Header File for curve25519( a state-of-the-art Diffie-Hellman function)
* @version V3.3
* @date 10. June 2022
* @model ecdh
******************************************************************************/
#ifndef _SC_ECDH_H_
#define _SC_ECDH_H_
#include "sec_include_config.h"
#define CONFIG_SEC_CRYPTO_ECC
#ifdef CONFIG_SEC_CRYPTO_ECC
#ifdef __cplusplus
extern "C" {
#endif
#ifdef SEC_LIB_VERSION
#include "drv/ecdh.h"
#include "drv/ecc.h"
#include "sec_crypto_ecc.h"
#else
#include "ecdh.h"
#include "ecc.h"
#include "sec_crypto_ecc.h"
#endif
/**
\brief ecdh calc secret
\param[in] ecc ecc handle to operate.
\param[in] pubkey Pointer to the A(or B) public key.
\param[out] privkey Pointer to the B(or A) private key.
\param[out] out Pointer to the share secret.
\param[out] len length of the share secret.
\return \ref uint32_t.
*/
uint32_t sc_ecdh_calc_secret(sc_ecc_t *ecc, uint8_t privkey[32],
uint8_t pubkey[65], uint8_t out[32],
uint32_t *len, sc_ecc_curve_type type) ;
#ifdef __cplusplus
extern "C" {
#endif
#endif
#endif /* _SC_CURVE15519_H_ */
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