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/**
******************************************************************************
* @file sc25519.h
* @author MCD Application Team
* @brief sc25519 header file
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2015 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under Image license SLA0044,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* http://www.st.com/SLA0044
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __SC25519_H__
#define __SC25519_H__
#ifdef __cplusplus
extern "C" {
#endif
/** @addtogroup sc25519
* @{
*/
/* Includes ------------------------------------------------------------------*/
/* Exported types ------------------------------------------------------------*/
typedef struct
{
uint32_t v[8]; /*!< uint32_t array representing the number in low endian format */
} sc25519; /*!< Representation of a number in GF(n = 2 ^ 252 + 27742317777372353535851937790883648493) */
/* Exported constants --------------------------------------------------------*/
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
void sc25519_from32bytes(sc25519 *r, const unsigned char x[32]);
void sc25519_from64bytes(sc25519 *r, const unsigned char x[64]);
void sc25519_to32bytes(unsigned char r[32], const sc25519 *x);
void sc25519_add(sc25519 *r, const sc25519 *x, const sc25519 *y);
void sc25519_mul(sc25519 *r, const sc25519 *x, const sc25519 *y);
#ifdef FAST_GE_COMPUTATION
void sc25519_window3(signed char r[85], const sc25519 *s);
void sc25519_2interleave2(unsigned char r[127], const sc25519 *s1, const sc25519 *s2);
#endif
/**
* @} sc25519
*/
#ifdef __cplusplus
}
#endif
#endif /* __SC25519_H__ */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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