Java-AES-decrypt

public static String AES_decrypt(String inputMessage, String key) throws CryptoException, IOException,
    CryptoTokenException, CryptoUnsupportedOperationException {

    AESKey aeskey = new AESKey(key.getBytes());
    byte[] data = StringUtil.b64_decode(inputMessage);

    AESDecryptorEngine engine = new AESDecryptorEngine(aeskey);
    PKCS5UnformatterEngine uengine = new PKCS5UnformatterEngine(engine);

    ByteArrayInputStream input = new ByteArrayInputStream(data);
    BlockDecryptor decryptor = new BlockDecryptor(uengine, input);

    decryptor.read(data);
    decryptor.close();
    input.close();

    return input.toString();
}