c++实现 openssl/aes aes加解密函数

以下是c++实现openssl/aes aes加解密函数的例子：

#include <openssl/aes.h>
#include <string.h>

// AES加密函数
void aes_encrypt(const unsigned char *in, unsigned char *out, const AES_KEY *key) {
    AES_encrypt(in, out, key);
}

// AES解密函数
void aes_decrypt(const unsigned char *in, unsigned char *out, const AES_KEY *key) {
    AES_decrypt(in, out, key);
}

int main() {
    // 初始化AES_KEY
    AES_KEY key;
    const unsigned char *key_data = (const unsigned char *)"0123456789abcdef";
    AES_set_encrypt_key(key_data, 128, &key);

    // 待加密的数据
    const unsigned char *in_data = (const unsigned char *)"hello world";
    int in_data_len = strlen((const char *)in_data);

    // 加密后的数据
    unsigned char out_data[1024] = {0};
    aes_encrypt(in_data, out_data, &key);

    // 解密后的数据
    unsigned char decrypt_data[1024] = {0};
    aes_decrypt(out_data, decrypt_data, &key);

    return 0;
}