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/**
******************************************************************************
* @file aes_keywrap.h
* @author MCD Application Team
* @brief AES in KeyWrap Mode
******************************************************************************
* @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 __CRL_AES_KEYWRAP_H__
#define __CRL_AES_KEYWRAP_H__
#ifdef __cplusplus
extern "C"
{
#endif
/** @ingroup AESKEYWRAP
* @{
*/
/* Exported types ------------------------------------------------------------*/
/** AES context structure for Key Wrap mode */
typedef AESCBCctx_stt AESKWctx_stt;
/* Exported constants --------------------------------------------------------*/
/** Number of uint32_t words in a Key Wrap Block */
#define CRL_KWRAP_BLOCK_SIZE 2
/** Number of uint8_t bytes in a Key Wrap Block */
#define CRL_AES_KWRAP_BLOCK 8
/* Exported functions --------------------------------------------------------*/
#ifdef INCLUDE_ENCRYPTION
/* load the key and ivec, eventually performs key schedule, etc. */
int32_t AES_KeyWrap_Encrypt_Init (AESKWctx_stt *P_pAESKWctx, const uint8_t *P_pKey, const uint8_t *P_pIv);
/* launch crypto operation , can be called just one times */
int32_t AES_KeyWrap_Encrypt_Append (AESKWctx_stt *P_pAESKWctx,
const uint8_t *P_pInputBuffer,
int32_t P_inputSize,
uint8_t *P_pOutputBuffer,
int32_t *P_pOutputSize);
/* Possible final output */
int32_t AES_KeyWrap_Encrypt_Finish (AESKWctx_stt *P_pAESKWctx,
uint8_t *P_pOutputBuffer,
int32_t *P_pOutputSize);
#endif /* ENC */
#ifdef INCLUDE_DECRYPTION
/* load the key and ivec, eventually performs key schedule, etc. */
int32_t AES_KeyWrap_Decrypt_Init (AESKWctx_stt *P_pAESKWctx, const uint8_t *P_pKey, const uint8_t *P_pIv);
/* launch crypto operation , can be called several times */
int32_t AES_KeyWrap_Decrypt_Append (AESKWctx_stt *P_pAESKWctx,
const uint8_t *P_pInputBuffer,
int32_t P_inputSize,
uint8_t *P_pOutputBuffer,
int32_t *P_pOutputSize);
/* Possible final output */
int32_t AES_KeyWrap_Decrypt_Finish (AESKWctx_stt *P_pAESKWctx,
uint8_t *P_pOutputBuffer,
int32_t *P_pOutputSize);
#endif
/** @} */
#ifdef __cplusplus
}
#endif
#endif /*__CRL_AES_KEYWRAP_H__ */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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