memset(cs->raw_key, 0, AES_BLOCK_SIZE);
memset(cs->encrypt_iv, 0, AES_BLOCK_SIZE);
memset(cs->decrypt_iv, 0, AES_BLOCK_SIZE);
memset(cs->raw_key, 0, AES_BLOCK_SIZE);
memset(cs->encrypt_iv, 0, AES_BLOCK_SIZE);
memset(cs->decrypt_iv, 0, AES_BLOCK_SIZE);