Encrypt/Decrypt using AES. The key must be 128bits

gistfile1.java

  private static String encrypt(String key, String data) throws Exception {
		SecretKeySpec keySpec = new SecretKeySpec(key.getBytes(), "AES");
		Cipher cipher = Cipher.getInstance("AES");
		cipher.init(Cipher.ENCRYPT_MODE, keySpec);
		byte[] res = cipher.doFinal(data.getBytes());
		return Hex.encodeHexString(res);
	}

	private static String decrypt(String key, String d) throws Exception {
		SecretKeySpec keySpec = new SecretKeySpec(key.getBytes(), "AES");
		Cipher cipher = Cipher.getInstance("AES");
		cipher.init(Cipher.DECRYPT_MODE, keySpec);
		return new String(cipher.doFinal(Hex.decodeHex(d.toCharArray())));
	}