memset(&key, 0, sizeof(key));
memset(&plain, 0, sizeof(plain));
memset(&plain2, 0, sizeof(plain2));
memset(&cipher, 0, sizeof(cipher));
memset(&key, 0, sizeof(key));
memset(&plain, 0, sizeof(plain));
memset(&plain2, 0, sizeof(plain2));
memset(&cipher, 0, sizeof(cipher));