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小白求助，求STM32操作加密芯片源代码

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答案对人有帮助，有参考价值 0 STM32操作SMEC98SP加密芯片的事例代码,如果需要完整代码(包括加密芯片代码),请到中巨伟业 http://www.sinormous.com/download.html下载 #include “stm32f10x.h” #include “stdio.h” #include “config.h” #include “util.h” #include #include #include “stm32f10x_i2c.h” #include “smec98sp.h” #include “iic_smec98sp.h” void RCC_Configuration(void); void NVIC_Configuration(void); void GPIO_Configuration(void); //--------------------------------------------------------- //函数名: 获取STM32的UID //参数说明： // pSTM32_UID - 存放STM32的UID,12字节 //返回值说明： // void //说明: //--------------------------------------------------------- void GetStm32Uid(unsigned char pSTM32_UID) { pSTM32_UID[0] = (unsigned char)(0x1FFFF7E8); pSTM32_UID[1] = (unsigned char)(0x1FFFF7E9); pSTM32_UID[2] = (unsigned char)(0x1FFFF7Ea); pSTM32_UID[3] = (unsigned char)(0x1FFFF7Eb); pSTM32_UID[4] = (unsigned char)(0x1FFFF7Ec); pSTM32_UID[5] = (unsigned char)(0x1FFFF7Ed); pSTM32_UID[6] = (unsigned char)(0x1FFFF7Ee); pSTM32_UID[7] = (unsigned char)(0x1FFFF7Ef); pSTM32_UID[8] = (unsigned char)(0x1FFFF7f0); pSTM32_UID[9] = (unsigned char)(0x1FFFF7f1); pSTM32_UID[10] = (unsigned char)(0x1FFFF7f2); pSTM32_UID[11] = (unsigned char)(0x1FFFF7f3); } #include “stm32f10x_adc.h” //--------------------------------------------------------- //函数名: 初始化ADC //参数说明： // void //返回值说明： // void //说明: 利用ADC悬空引脚产生随机数 // 将PA1 作为模拟通道输入引脚(一定要用悬空脚,否则获取的随机数,不够随机), //--------------------------------------------------------- void Adc_Init(void) { ADC_InitTypeDef ADC_InitStructure; GPIO_InitTypeDef GPIO_InitStructure; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA \|RCC_APB2Periph_ADC1, ENABLE ); //使能ADC1通道时钟 RCC_ADCCLKConfig(RCC_PCLK2_Div6); //设置ADC分频因子6 72M/6=12,ADC最大时间不能超过14M //PA1 作为模拟通道输入引脚, 一定要用悬空脚,否则获取的随机数,不够随机 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN; //模拟输入引脚 GPIO_Init(GPIOA, &GPIO_InitStructure); ADC_DeInit(ADC1); //复位ADC1,将外设 ADC1 的全部寄存器重设为缺省值 ADC_InitStructure.ADC_Mode = ADC_Mode_Independent; //ADC工作模式:ADC1和ADC2工作在独立模式 ADC_InitStructure.ADC_ScanConvMode = DISABLE; //模数转换工作在单通道模式 ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;//DISABLE; //模数转换工作在单次转换模式 ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None; //转换由软件而不是外部触发启动 ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right; //ADC数据右对齐 ADC_InitStructure.ADC_NbrOfChannel = 1; //顺序进行规则转换的ADC通道的数目 ADC_Init(ADC1, &ADC_InitStructure); //根据ADC_InitStruct中指定的参数初始化外设ADCx的寄存器 ADC_Cmd(ADC1, ENABLE); //使能指定的ADC1 ADC_ResetCalibration(ADC1); //使能复位校准 while(ADC_GetResetCalibrationStatus(ADC1)); //等待复位校准结束 ADC_StartCalibration(ADC1); //开启AD校准 while(ADC_GetCalibrationStatus(ADC1)); //等待校准结束 ADC_SoftwareStartConvCmd(ADC1, ENABLE); //使能指定的ADC1的软件转换启动功能 } //--------------------------------------------------------- //函数名: 获得ADC值,作为随机数种子 //参数说明： // void //返回值说明： // ADC悬空引脚产生的随机数 //说明: 采集4次ADC的值，每次取采集的第四位，拼成16位作为种子 //--------------------------------------------------------- unsigned short Get_Adc_RandomSeek(void) { unsigned char Count; unsigned short ADC_RandomSeek = 0; //设置指定ADC的规则组通道，一个序列，采样时间 ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 1, ADC_SampleTime_239Cycles5 ); //ADC1,ADC通道,采样时间为239.5周期 ADC_SoftwareStartConvCmd(ADC1, ENABLE); //使能指定的ADC1的软件转换启动功能 for(Count = 0; Count < 4; Count++){ while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC ));//等待转换结束 ADC_RandomSeek <<= 4; ADC_RandomSeek += ADC_GetConversionValue(ADC1) & 0x000f; /采集4次ADC的值，每次取采集的第四位，拼成16位作为种子/ } ADC_SoftwareStartConvCmd(ADC1,DISABLE); return ADC_RandomSeek; } / 1.获取SMEC98SP的UID号, 获取STM32的ID, 获取STM32随机数 2.验证PIN 3.内外部认证 4.SHA1=>前置数据^随机数 5.密文读 6.读数据 7.写数据 8.构造算法(PA口数据->密文送加密芯片, 密文返回) 如果直接引用,请将print的调试信息去除 / void SMEC_Test(void) { /各种密钥,不会在I2C线路上传输,可以使用同一组.应该将密钥分散存储,防止主控芯片被破解后,被攻击者在二进制码中找到密钥 / unsigned char InternalKey[16] = {0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F};//内部认证密钥,必须和SMEC98SP一致 unsigned char ExternalKey[16] = {0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F};//外部认证密钥,必须和SMEC98SP一致 unsigned char SHA1_Key[16] = {0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F}; //哈希算法认证密钥,必须和SMEC98SP一致 unsigned char MKey[16] = {0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F}; //主控密钥,用于产生过程密钥,必须和SMEC98SP一致 unsigned char Pin[8] = {0x55,0x66,0x77,0x88,0x99,0xaa,0xbb,0xcc}; //Pin认证密钥,必须和SMEC98SP一致 unsigned char bStm32Uid[12] = {0}; //存放STM32的UID unsigned char bSmec98spUid[12] = {0}; //存放SMEC98SP的UID unsigned short RandomSeek; //随机数种子 unsigned char bRandom[8] = {0}; //存放随机数 unsigned char bSessionKey[8] = {0}; //存放过程密钥,过程密钥为临时产生的密钥 unsigned char bDataBuf[64] = {0}; unsigned char ret, bLen; unsigned short i, j; /利用ADC悬空引脚产生随机数/ Adc_Init(); //可放在主程序中 RandomSeek = Get_Adc_RandomSeek(); //利用ADC悬空引脚产生随机数 /获取STM32的UID/ GetStm32Uid(bStm32Uid); printf("GetStm32Uid: "); PrintHex(bStm32Uid, 12); printf("rn"); /获取SMEC98SP的UID/ ret = SMEC_GetUid(bSmec98spUid); if(ret) { printf("SMEC_GetUid -> Error !rn"); while(1); } printf("SMEC_GetUid: "); PrintHex(bSmec98spUid, 12); printf("rn"); /将随机数RandomSeek，再做一次随机处理(与STM32的UID, SMEC98SP的UID作绑定, 使得即使相同情况下,不同的STM32,SMEC98SP随机数种子也不同)/ for(i = 0; i < 6; i += 2) { /使RandomSeek与STM32的UID相关/ j = (bStm32Uid << 8) + bStm32Uid[i + 1]; RandomSeek ^= j; /使RandomSeek与SMEC98SP的UID相关/ j = (bSmec98spUid << 8) + bSmec98spUid[i + 1]; RandomSeek ^= j; } srand(RandomSeek); printf("RandomSeek: %04x rn", RandomSeek); /PIN码验证/ ret = SMEC_CheckPin(Pin, (unsigned char)sizeof(Pin)); if(ret) { printf("SMEC_CheckPin -> Error !rn"); while(1); } printf("SMEC_CheckPin OK !rn"); /内部认证, 主控芯片对SMEC98SP加密芯片合法性判断/ for(i = 0; i < 8; i ++) { bRandom = (unsigned char) rand(); } ret = SMEC_IntrAuth(InternalKey, bRandom); if(ret) { printf("SMEC_IntrAuth -> Error !rn"); while(1); } printf("SMEC_IntrAuth OK !rn"); /外部认证, SMEC98SP加密芯片对主控芯片合法性判断/ ret = SMEC_ExtrAuth(ExternalKey); if(ret) { printf("SMEC_ExtrAuth -> Error !rn"); while(1); } printf("SMEC_ExtrAuth OK !rn"); /SHA1摘要算法认证, 数据长度可自己设定/ for(i = 0; i < 16; i ++) { bDataBuf = (unsigned char) rand(); } ret = SMEC_Sha1Auth(SHA1_Key, (unsigned char)sizeof(SHA1_Key), bDataBuf, 16); if(ret) { printf("SMEC_Sha1Auth -> Error !rn"); while(1); } printf("SMEC_Sha1Auth OK !rn"); /调用加密芯片内部计算圆周长算法/ bDataBuf[0] = 0x02; ret = SMEC_CircleAlg(bDataBuf, 1, bDataBuf, &bLen); if(ret) { printf("SMEC_CircleAlg -> Error !rn"); while(1); } printf("SMEC_CircleAlg OK, C = %02x !rn", bDataBuf[0]); /产生过程密钥,用于后续的Flash数据加密读,及构造的"端口数据运算"/ for(i = 0; i < 8; i ++) { bRandom = (unsigned char) rand(); } ret = SMEC_GenSessionKey(MKey, bRandom, bSessionKey); if(ret) { printf("SMEC_GenSessionKey -> Error !rn"); while(1); } printf("SMEC_GenSessionKey OK !rn"); /密文读取Flash数据/ ret = SMEC_CryptReadFlash(bSessionKey, 0x0000, bDataBuf, 16); if(ret) { printf("SMEC_CryptReadFlash -> Error !rn"); while(1); } printf("SMEC_CryptReadFlash OK:rn"); PrintHex(bDataBuf, 16); /读取Flash数据/ ret = SMEC_ReadFlash(0x0000, bDataBuf, 16); if(ret) { printf("SMEC_ReadFlash -> Error !rn"); while(1); } printf("SMEC_ReadFlash OK:rn"); PrintHex(bDataBuf, 16); /写Flash数据/ for(i = 0; i < 16; i ++) { bDataBuf = (unsigned char) i; } ret = SMEC_WriteFlash(0x0000, bDataBuf, 16); if(ret) { printf("SMEC_WriteFlash -> Error !rn"); while(1); } printf("SMEC_WriteFlash OK!rn"); /构造"端口数据运算", 可以用实际的PA~PC端口数据/ bDataBuf[0] = 0x00; bDataBuf[1] = 0x00; ret = SMEC_GpioAlg(bSessionKey, bDataBuf,2, bDataBuf); if(ret) { printf("SMEC_GpioAlg -> Error !rn"); while(1); } printf("SMEC_GpioAlg OK:rn"); PrintHex(bDataBuf, 2); /调用加密芯片内部计算圆周长算法,并密文在线路上传输/ bDataBuf[0] = 0x02; ret = SMEC_CircleAlgCrypt(bSessionKey, bDataBuf, 1, bDataBuf, &bLen); if(ret) { printf("SMEC_CircleAlgCrypt -> Error !rn"); while(1); } printf("SMEC_CircleAlgCrypt OK, C = %02x !rn", bDataBuf[0]); } /--------------/// /**************************************************************************** Function Name : main Description : Main program. Input : None Output : None Return : None ***************************************************************************/ int main(void) { RCC_Configuration(); // Configure the system clocks NVIC_Configuration(); // NVIC Configuration GPIO_Configuration(); USART1_Init(); SMEC_I2cInit(); //初始化加密芯片IIC IO Delay_ms(10); //等待保证加密芯片已经运行 printf(“Zrn”); SMEC_Test(); //加密芯片功能演示 while(1); } void GPIO_Configuration(void) { GPIO_InitTypeDef GPIO_InitStructure; AFIO_TypeDef AFIO_InitStructure; // Configure the USART1_Tx as Alternate function Push-Pull GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_InitStructure.GPIO_Pin = USART1_TX; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOA, &GPIO_InitStructure); // Configure the USART1_Rx as input floating GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; GPIO_InitStructure.GPIO_Pin = USART1_RX; GPIO_Init(GPIOA, &GPIO_InitStructure); } /*************************************************************************** Function Name : RCC_Configuration Description : Configures the different system clocks. Input : None Output : None Return : None ****************************************************************************/ void RCC_Configuration(void) { ErrorStatus HSEStartUpStatus; / RCC system reset(for debug purpose) / RCC_DeInit(); / Enable HSE / RCC_HSEConfig(RCC_HSE_ON); / Wait till HSE is ready / HSEStartUpStatus = RCC_WaitForHSEStartUp(); if(HSEStartUpStatus == SUCCESS) { / Enable Prefetch Buffer / FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); / Flash 2 wait state / FLASH_SetLatency(FLASH_Latency_2); / HCLK = SYSCLK / RCC_HCLKConfig(RCC_SYSCLK_Div1); / PCLK2 = HCLK / RCC_PCLK2Config(RCC_HCLK_Div1); / PCLK1 = HCLK/2 / RCC_PCLK1Config(RCC_HCLK_Div2); / PLLCLK = 8MHz * 9 = 72 MHz / RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9); / Enable PLL / RCC_PLLCmd(ENABLE); / Wait till PLL is ready / while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) { } / Select PLL as system clock source / RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); / Wait till PLL is used as system clock source / while(RCC_GetSYSCLKSource() != 0x08) { } } / TIM2 clock enable / RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA \| RCC_APB2Periph_SPI1 \| RCC_APB2Periph_GPIOB \|RCC_APB2Periph_GPIOC \|RCC_APB2Periph_AFIO \| RCC_APB2Periph_USART1, ENABLE); } /**************************************************************************** Function Name : NVIC_Configuration Description : Configures Vector Table base location. Input : None Output : None Return : None ****************************************************************************/ void NVIC_Configuration(void) { NVIC_InitTypeDef NVIC_InitStructure; #ifdef VECT_TAB_RAM / Set the Vector Table base location at 0x20000000 / NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0); #else / VECT_TAB_FLASH / / Configure one bit for preemption priority / NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); / Enable the USART1 Interrupt / NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); // / Enable the USART2 Interrupt / // NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn; // NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; // NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; // NVIC_Init(&NVIC_InitStructure); / Enable the USART3 Interrupt / / Enable the TIM2 global Interrupt / NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); / Enable the TIM2 global Interrupt / NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); / Set the Vector Table base location at 0x08000000 / NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0); / Set the Vector Table base location at 0x08002000 -> USE AIP*/ // NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x2000); // NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x4000); #endif }

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