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/**
******************************************************************************
* @file tdes_common.h
* @author MCD Application Team
* @brief TDES common functions and definitions
******************************************************************************
* @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 __TDES_COMMON_H__
#define __TDES_COMMON_H__
#ifdef __cplusplus
extern "C"
{
#endif
/** @addtogroup TDES
* @{
*/
/* Exported constants --------------------------------------------------------*/
#define CRL_TDES_BLOCK 8 /*!< Number of bytes (uint8_t) necessary to store a Triple DES block. */
#define CRL_TDES_KEY 24 /*!< Number of bytes (uint8_t) necessary to store a Triple DES key. */
/* Exported types ------------------------------------------------------------*/
typedef struct
{
uint32_t mContextId; /*!< Unique ID of this context. \b Not \b used in current implementation. */
SKflags_et mFlags; /*!< 32 bit mFlags, used to perform keyschedule */
const uint8_t *pmKey; /*!< Pointer to original Key buffer */
const uint8_t *pmIv; /*!< Pointer to original Initialization Vector buffer */
int32_t mIvSize; /*!< Size of the Initialization Vector in bytes */
uint32_t amIv[2]; /*!< Temporary result/IV */
uint32_t amExpKey[96]; /*!< Expanded DES key */
}
TDESCBCctx_stt; /*!< TDES context structure for ECB and CBC modes */
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /*__TDES_COMMON_H__*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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