authenticationfail.java

	private String encryptCredentials(String plaintext) throws Exception {
		
		String algorithm = "AES/CBC/PKCS5Padding";
		SecretKeySpec skeySpec = new SecretKeySpec(SECRET_KEY.getBytes(), algorithm);

		Cipher cipher = Cipher.getInstance(algorithm);
		cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
		byte[] encrypted = cipher.doFinal(plaintext.getBytes());

		return new String(encrypted);
	}