Motion_EC_HC32_archived/Libraries/HC32L073_StdPeriph_Driver/src/aes.c

207 lines
7.3 KiB
C
Executable File

/******************************************************************************
*Copyright(C)2017, Huada Semiconductor Co.,Ltd All rights reserved.
*
* This software is owned and published by:
* Huada Semiconductor Co.,Ltd("HDSC").
*
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* BY ALL THE TERMS AND CONDITIONS OF THIS AGREEMENT.
*
* This software contains source code for use with HDSC
* components. This software is licensed by HDSC to be adapted only
* for use in systems utilizing HDSC components. HDSC shall not be
* responsible for misuse or illegal use of this software for devices not
* supported herein. HDSC is providing this software "AS IS" and will
* not be responsible for issues arising from incorrect user implementation
* of the software.
*
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*/
/** \file aes.c
**
** Common API of AES.
** @link AesGroup Some description @endlink
**
** - 2019-04-16
**
******************************************************************************/
/*******************************************************************************
* Include files
******************************************************************************/
#include "aes.h"
/**
*******************************************************************************
** \addtogroup AesGroup
******************************************************************************/
//@{
/*******************************************************************************
* Local pre-processor symbols/macros ('#define')
******************************************************************************/
/*******************************************************************************
* Global variable definitions (declared in header file with 'extern')
******************************************************************************/
/*******************************************************************************
* Local type definitions ('typedef')
******************************************************************************/
/*******************************************************************************
* Local variable definitions ('static')
******************************************************************************/
/*******************************************************************************
* Local function prototypes ('static')
******************************************************************************/
/*******************************************************************************
* Function implementation - global ('extern') and local ('static')
******************************************************************************/
/**
* \brief
* AES 加密
*
* \param [in] pstcAesCfg AES 配置结构体 @ref stc_aes_cfg_t
*
* \retval en_result_t Ok: 配置成功
* \retval en_result_t ErrorInvalidParameter: 无效参数
*/
en_result_t AES_Encrypt(stc_aes_cfg_t* pstcAesCfg)
{
if (NULL == pstcAesCfg)
{
return ErrorInvalidParameter;
}
M0P_AES->CR_f.KEYSIZE = pstcAesCfg->enKeyLen;
//Key cfg
M0P_AES->KEY0 = pstcAesCfg->pu32Key[0];
M0P_AES->KEY1 = pstcAesCfg->pu32Key[1];
M0P_AES->KEY2 = pstcAesCfg->pu32Key[2];
M0P_AES->KEY3 = pstcAesCfg->pu32Key[3];
if(AesKey192 == pstcAesCfg->enKeyLen)
{
M0P_AES->KEY4 = pstcAesCfg->pu32Key[4];
M0P_AES->KEY5 = pstcAesCfg->pu32Key[5];
}
if(AesKey256 == pstcAesCfg->enKeyLen)
{
M0P_AES->KEY4 = pstcAesCfg->pu32Key[4];
M0P_AES->KEY5 = pstcAesCfg->pu32Key[5];
M0P_AES->KEY6 = pstcAesCfg->pu32Key[6];
M0P_AES->KEY7 = pstcAesCfg->pu32Key[7];
}
//Data cfg
M0P_AES->DATA0 = pstcAesCfg->pu32Plaintext[0];
M0P_AES->DATA1 = pstcAesCfg->pu32Plaintext[1];
M0P_AES->DATA2 = pstcAesCfg->pu32Plaintext[2];
M0P_AES->DATA3 = pstcAesCfg->pu32Plaintext[3];
M0P_AES->CR_f.MODE = 0;//Encry
M0P_AES->CR_f.START = 1;
while(M0P_AES->CR_f.START == 1)
{
;
}
pstcAesCfg->pu32Cipher[0] = M0P_AES->DATA0;
pstcAesCfg->pu32Cipher[1] = M0P_AES->DATA1;
pstcAesCfg->pu32Cipher[2] = M0P_AES->DATA2;
pstcAesCfg->pu32Cipher[3] = M0P_AES->DATA3;
return Ok;
}
/**
* \brief
* AES 解密
*
* \param [in] pstcAesCfg AES 配置结构体 @ref stc_aes_cfg_t
*
* \retval en_result_t Ok: 配置成功
* \retval en_result_t ErrorInvalidParameter: 无效参数
*/
en_result_t AES_Decrypt(stc_aes_cfg_t* pstcAesCfg)
{
if (NULL == pstcAesCfg)
{
return ErrorInvalidParameter;
}
M0P_AES->CR_f.KEYSIZE = pstcAesCfg->enKeyLen;
//Key cfg
M0P_AES->KEY0 = pstcAesCfg->pu32Key[0];
M0P_AES->KEY1 = pstcAesCfg->pu32Key[1];
M0P_AES->KEY2 = pstcAesCfg->pu32Key[2];
M0P_AES->KEY3 = pstcAesCfg->pu32Key[3];
if(AesKey192 == pstcAesCfg->enKeyLen)
{
M0P_AES->KEY4 = pstcAesCfg->pu32Key[4];
M0P_AES->KEY5 = pstcAesCfg->pu32Key[5];
}
if(AesKey256 == pstcAesCfg->enKeyLen)
{
M0P_AES->KEY4 = pstcAesCfg->pu32Key[4];
M0P_AES->KEY5 = pstcAesCfg->pu32Key[5];
M0P_AES->KEY6 = pstcAesCfg->pu32Key[6];
M0P_AES->KEY7 = pstcAesCfg->pu32Key[7];
}
//Data cfg
M0P_AES->DATA0 = pstcAesCfg->pu32Cipher[0];
M0P_AES->DATA1 = pstcAesCfg->pu32Cipher[1];
M0P_AES->DATA2 = pstcAesCfg->pu32Cipher[2];
M0P_AES->DATA3 = pstcAesCfg->pu32Cipher[3];
M0P_AES->CR_f.MODE = 1;//UnEncry
M0P_AES->CR_f.START = 1;
while(M0P_AES->CR_f.START == 1)
{
;
}
pstcAesCfg->pu32Plaintext[0] = M0P_AES->DATA0;
pstcAesCfg->pu32Plaintext[1] = M0P_AES->DATA1;
pstcAesCfg->pu32Plaintext[2] = M0P_AES->DATA2;
pstcAesCfg->pu32Plaintext[3] = M0P_AES->DATA3;
return Ok;
}
//@} // AesGroup
/*******************************************************************************
* EOF (not truncated)
******************************************************************************/