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/**
******************************************************************************
* @file chacha20_core.h
* @author MCD Application Team
* @brief Implements the core chacha functionality
******************************************************************************
* @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
*
******************************************************************************
*/
/*
* The implementation of chacha20 is just an adapatation (for consistency with
* the library) of code coming from: chacha-ref.c version 20080118 D. J. Bernstein
* Which was released in Public domain.
*/
#ifndef __CHACHA20_CORE_H__
#define __CHACHA20_CORE_H__
/* Includes ------------------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/** @addtogroup SymKeylowlevel
* @{
*/
/** @defgroup CHACHAlowlevel ChaCha
* @brief Internal ChaCha Functions and Macros
* @{
*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
void salsa20_wordtobyte(uint8_t output[64],\
const uint32_t input[16]);
/**
* @} SymKeylowlevel
*/
/**
* @} CHACHAlowlevel
*/
#endif /* __CHACHA20_CORE_H__ */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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