STM32 16字节加解密的AES算法程序源码 -

/**
******************************************************************************
* @file GPIO/GPIO_IOToggle/main.c
* @author MCD Application Team
* @version V1.4.0
* @brief Main program body
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT 2014 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (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/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"
#include "stm32f0xx_conf.h"
#include "stdio.h"
#include "stdlib.h"
#include "Mcu_config.h"
#include "Serial.h"
#include "AES.h"
/** @addtogroup STM32F0xx_StdPeriph_Examples
* @{
*/
/** @addtogroup GPIO_IOToggle
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#ifdef __GNUC__
/* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
set to 'Yes') calls __io_putchar() */
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program.
* @param None
* @retval None
*/
char expressText[1024]; //存放待加密的明文数据，具体缓存大小根据用户待加密数据长度自己任意修改
char cipherText[1024];//存放已加密的密文数据，具体缓存大小根据用户解密后的数据长度自己任意修改
char aesKey[16];//加解密的密钥，注意：此算法只适用于AES16位密钥加解密，不适用于32位密钥加解密
//该AES算法加密方式为：AES-128bit/ECB/PKCS5Padding
/*
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*/
int main(void)
{
MCU_Init();
delay_1ms(2000);
memcpy(aesKey , "1uweiIDAS7awOas8" , 16); //AES加密密钥，16字节（128bit）
memset(expressText ,0 ,1024);
memset(cipherText , 0 ,1024);
strcpy(expressText , "Hello!!!Are you ready???");
AES_Encrypt(expressText , cipherText , aesKey); //use aesKey encrypt
memset(expressText ,0 ,1024);
AES_Decrypt(expressText , cipherText , aesKey);//use aesKey decrypt
while(1)
{
delay_1ms(2000);
}
}
/**
* @brief Retargets the C library printf function to the USART.
* @param None
* @retval None
*/
PUTCHAR_PROTOTYPE
{
/* Place your implementation of fputc here */
/* e.g. write a character to the USART */
USART_SendData(USART2, (uint8_t) ch);
/* Loop until transmit data register is empty */
while (USART_GetFlagStatus(USART2, USART_FLAG_TXE) == RESET)
{}
return ch;
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
void fault_handler_c(unsigned int * hardfault_args, unsigned int type);
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