mirror of
https://github.com/STMicroelectronics/STM32CubeF4.git
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269 lines
8.6 KiB
C
269 lines
8.6 KiB
C
/**
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******************************************************************************
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* @file CRYP/CRYP_TDESmodes/Src/main.c
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* @author MCD Application Team
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* @brief This sample code shows how to use the STM32F4xx CRYP HAL API
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* to encrypt and decrypt data using TDES in ECB and CBC Algorithm.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2017 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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/** @addtogroup STM32F4xx_HAL_Examples
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* @{
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*/
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/** @addtogroup CRYP_Example
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* @{
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*/
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* CRYP handler declaration */
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static CRYP_HandleTypeDef hcryp;
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static CRYP_ConfigTypeDef Conf;
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/* Triple Key */
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uint32_t TDESKey[6] = { 0x01234567,0x89ABCDEF,
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0x23456789,0xABCDEF01,
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0x456789AB,0xCDEF0123};
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/*Initialization Vector*/
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uint32_t InitVector[2] = {0xF69F2445 ,0xDF4F9B17};
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/* Plaintext */
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uint32_t Plaintext[8] = { 0x6BC1BEE2, 0x2E409F96, 0xE93D7E11, 0x7393172A,
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0xAE2D8A57, 0x1E03AC9C, 0x9EB76FAC, 0x45AF8E51};
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/* Expected ECB Ciphertext */
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uint32_t Ciphertext_ECB[8] = {0x714772F3, 0x39841D34,0x267FCC4B,0xD2949CC3,
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0xEE11C22A, 0x576A3038, 0x76183F99, 0xC0B6DE87};
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/* Expected CBC Ciphertext */
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uint32_t Ciphertext_CBC[8] = {0x2079C3D5, 0x3AA763E1, 0x93B79E25 , 0x69AB5262,
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0x51657048, 0x1F25B50F , 0x73C0BDA8 , 0x5C8E0DA7};
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/* Used for storing Encrypted text */
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uint32_t Encryptedtext[8]={0};
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/* Used for storing Decrypted text */
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uint32_t Decryptedtext[8]={0};
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/* Private function prototypes -----------------------------------------------*/
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static void SystemClock_Config(void);
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static void Error_Handler(void);
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/* Private functions ---------------------------------------------------------*/
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/**
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* @brief Main program
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* @param None
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* @retval None
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*/
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int main(void)
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{
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/* STM32F4xx HAL library initialization:
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- Configure the Flash prefetch, instruction and Data caches
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- Configure the Systick to generate an interrupt each 1 msec
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- Set NVIC Group Priority to 4
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- Global MSP (MCU Support Package) initialization
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*/
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HAL_Init();
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/* Configure the system clock to 180 MHz */
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SystemClock_Config();
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/* Configure LED1 and LED3 */
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BSP_LED_Init(LED1);
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BSP_LED_Init(LED3);
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/*## Set the CRYP parameters and initialize the IP ######################################*/
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hcryp.Instance = CRYP;
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hcryp.Init.DataType = CRYP_DATATYPE_32B;
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hcryp.Init.pKey = TDESKey;
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hcryp.Init.Algorithm = CRYP_TDES_ECB;
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hcryp.Init.KeyIVConfigSkip = CRYP_KEYIVCONFIG_ALWAYS;
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/* Configure the CRYP */
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HAL_CRYP_Init(&hcryp);
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/*##-1- TDES ECB Encryption #######################################*/
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/* Encryption, result in Encryptedtext buffer */
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HAL_CRYP_Encrypt(&hcryp, Plaintext, 8, Encryptedtext, TIMEOUT_VALUE);
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if(memcmp(Encryptedtext, Ciphertext_ECB, 32) != 0)
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{
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/* Not expected result, wrong on Encryptedtext buffer: Turn LED3 on */
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Error_Handler();
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}
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/*##-2- TDES CBC Encryption #######################################*/
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/* Get current CRYP parameters */
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HAL_CRYP_GetConfig(&hcryp, &Conf);
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/* Set new parameters and configure the CRYP */
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Conf.pInitVect = InitVector;
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Conf.Algorithm = CRYP_TDES_CBC;
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HAL_CRYP_SetConfig(&hcryp, &Conf);
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/* Encryption, result in Encryptedtext buffer */
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HAL_CRYP_Encrypt(&hcryp, Plaintext, 8, Encryptedtext, TIMEOUT_VALUE);
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if(memcmp(Encryptedtext, Ciphertext_CBC, 32) != 0)
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{ /* Not expected result, wrong on Encryptedtext buffer: Turn LED3 on */
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Error_Handler();
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}
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/*##-3- TDES ECB Decryption #######################################*/
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/* Set new parameters and configure the CRYP */
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Conf.Algorithm = CRYP_TDES_ECB;
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HAL_CRYP_SetConfig(&hcryp, &Conf);
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/* Decryption, result in Decryptedtext buffer */
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HAL_CRYP_Decrypt(&hcryp, Ciphertext_ECB , 8, Decryptedtext, TIMEOUT_VALUE);
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if(memcmp(Decryptedtext, Plaintext, 32) != 0)
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{
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/* Not expected result, wrong on Decryptedtext buffer: Turn LED3 on */
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Error_Handler();
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}
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/*##-4- TDES CBC Decryption #######################################*/
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/* Set new parameters and configure the CRYP */
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Conf.Algorithm = CRYP_TDES_CBC;
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HAL_CRYP_SetConfig(&hcryp, &Conf);
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/* Decryption, result in Decryptedtext buffer */
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HAL_CRYP_Decrypt(&hcryp, Ciphertext_CBC, 8, Decryptedtext, TIMEOUT_VALUE);
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if(memcmp(Decryptedtext, Plaintext, 32) != 0)
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{ /* Not expected result, wrong on Decryptedtext buffer: Turn LED3 on */
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Error_Handler();
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}
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else
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{
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/* Right Encryptedtext & Decryptedtext buffer : Turn LED1 on */
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BSP_LED_On(LED1);
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}
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/* Infinite loop */
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while (1)
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{
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}
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}
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/**
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* @brief System Clock Configuration
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* The system Clock is configured as follow :
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* System Clock source = PLL (HSE)
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* SYSCLK(Hz) = 180000000
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* HCLK(Hz) = 180000000
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* AHB Prescaler = 1
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* APB1 Prescaler = 4
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* APB2 Prescaler = 2
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* HSE Frequency(Hz) = 25000000
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* PLL_M = 25
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* PLL_N = 360
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* PLL_P = 2
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* PLL_Q = 7
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* VDD(V) = 3.3
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* Main regulator output voltage = Scale1 mode
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* Flash Latency(WS) = 5
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* @param None
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* @retval None
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*/
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static void SystemClock_Config(void)
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{
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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RCC_OscInitTypeDef RCC_OscInitStruct;
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/* Enable Power Control clock */
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__HAL_RCC_PWR_CLK_ENABLE();
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/* The voltage scaling allows optimizing the power consumption when the device is
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clocked below the maximum system frequency, to update the voltage scaling value
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regarding system frequency refer to product datasheet. */
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
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/* Enable HSE Oscillator and activate PLL with HSE as source */
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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RCC_OscInitStruct.PLL.PLLM = 25;
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RCC_OscInitStruct.PLL.PLLN = 360;
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RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
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RCC_OscInitStruct.PLL.PLLQ = 7;
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RCC_OscInitStruct.PLL.PLLR = 6;
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HAL_RCC_OscConfig(&RCC_OscInitStruct);
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/* Activate the Over-Drive mode */
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HAL_PWREx_EnableOverDrive();
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/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
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clocks dividers */
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RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
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HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5);
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}
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/**
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* @brief This function is executed in case of error occurrence.
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* @param None
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* @retval None
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*/
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static void Error_Handler(void)
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{
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/* Turn LED3 on */
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BSP_LED_On(LED3);
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while (1)
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{
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}
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}
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#ifdef USE_FULL_ASSERT
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/**
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* @brief Reports the name of the source file and the source line number
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* where the assert_param error has occurred.
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* @param file: pointer to the source file name
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* @param line: assert_param error line source number
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* @retval None
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*/
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void assert_failed(uint8_t *file, uint32_t line)
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{
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/* User can add his own implementation to report the file name and line number,
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ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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/* Infinite loop */
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while (1)
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{
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}
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}
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#endif
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/**
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* @}
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*/
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/**
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* @}
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*/
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