在C语言中,可以使用openssl库来实现AES加密算法。下面是一个简单的示例代码,演示如何使用openssl库进行AES加密和解密。 #include <stdio.h> #include <string.h> #include <openssl/aes.h> #define AES_BLOCK_SIZE 16 void encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key, un...
unsigned char iv[AES_BLOCK_SIZE]; //这个也是加密解密同一个确保十六字节里面的内容加密解密一样就ok for (int i = 0; i < 16; ++i) iv[i] = 0; //通过自己的秘钥获得一个aes秘钥以供下面解密使用,128表示16字节 AES_KEY aes; if (AES_set_decrypt_key((unsigned char*)key, 128, &aes) <...
//创建AES加密上下文 AES_KEY aesKey;AES_set_encrypt_key(key, AES_KEY_SIZE, &aesKey);//待加密的数据 unsigned char input[] = "Hello, AES!";int inputLen = sizeof(input)/sizeof(input[0]);//加密数据 unsigned char encrypted[AES_BLOCK_SIZE];AES_encrypt(input, encrypted, &aesKey);//...
size_t length, const AES_KEY *key, unsigned char ivec[AES_BLOCK_SIZE], unsigned char ecount_buf[AES_BLOCK_SIZE], unsigned int *num); AES CTR128位模式加密/解密,输入输出数据区能够重叠; in: 须要加密/解密的数据。 out: 计算后输出的数据; length: 数据长度; key: 密钥。 ivec: 初始化向量 ...
在C语言中,可以使用openssl库中的函数来实现AES/CBC加解密。具体步骤如下: 引入openssl库头文件:#include <openssl/aes.h> 定义AES密钥和初始化向量(IV):unsigned char key[AES_BLOCK_SIZE] = "0123456789abcdef"; unsigned char iv[AES_BLOCK_SIZE] = "fedcba9876543210"; ...
#include <openssl/aes.h> #include <stdio.h> #include <string.h> void handleErrors(void) { fprintf(stderr, "Error occurred\n"); exit(1); } int main() { unsigned char key[32] = "0123456789abcdef0123456789abcdef"; // 256-bit key unsigned char iv[AES_BLOCK_SIZE] = "abcdef98765432...
void AES_cbc_encrypt(const unsigned char *in, unsigned char *out, size_t length, const AES_KEY *key, unsigned char *ivec, const int enc); # define AES_BLOCK_SIZE 16 // aes.h 71 lines # define AES_ENCRYPT 1 // aes.h 63 lines ...
C语言实现AES 在C语言中实现AES主要依赖于存储和算法的效率。以下是一个简单的AES加密实现的示例代码: #include<stdio.h>#include<stdint.h>#include<string.h>// AES轮数#defineAES_ROUNDS10#defineAES_BLOCK_SIZE16voidaes_encrypt(uint8_t*in,uint8_t*out,uint8_t*key){// 这里是AES加密的主体代码//...
*AES_BLOCK_SIZE;10char*enc_s = (char*)malloc(nTotal);11intnNumber;12if(nLen %16>0)13nNumber = nTotal -nLen;14else15nNumber =16;16memset(enc_s, nNumber, nTotal);17memcpy(enc_s, input_string.data(), nLen);1819if(AES_set_encrypt_key((unsignedchar*)key,128, &aes) <0) {...
block size in number of bytes.#define key_count 3#if key_count = 1 #define keybits 128 /! use aes128.#elif key_count = 2 #define keybits 192 /! use aes196.#elif key_count = 3 #define keybits 256 /! use aes2 2、56.#else #error use 1, 2 or 3 keys!#endif#if keybits ...