+ * Copyright (c) CI Wise Inc. All rights reserved. http://www.ciwise.com
+ * The software in this package is published under the terms of the Apache
+ * version 2.0 license, a copy of which has been included with this distribution
+ * in the LICENSE.txt file.
+package com.ciwise.accounting.util;
+import javax.crypto.Cipher;
+import javax.crypto.spec.IvParameterSpec;
+import javax.crypto.spec.SecretKeySpec;
+import java.security.Key;
+ * @author <a href="mailto:david@ciwise.com">David L. Whitehurst</a>
+public class AESCryptoUtil {
+ * This method encrypts a string and returns a byte array of
+ * the encrypted result.
+ public static byte[] encrypt(String value) {
+ byte[] encrypted = null;
+ byte[] raw = new byte[]{'A', 'b', 'c', 'D', 'E', 'f', 'g', 'z', '4', 'x', '9', '9', '0', 'O', 'c', 'j'};
+ Key skeySpec = new SecretKeySpec(raw, "AES");
+ Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
+ byte[] iv = new byte[cipher.getBlockSize()];
+ IvParameterSpec ivParams = new IvParameterSpec(iv);
+ cipher.init(Cipher.ENCRYPT_MODE, skeySpec, ivParams);
+ encrypted = cipher.doFinal(value.getBytes());
+ //System.out.println("encrypted string:" + encrypted.length);
+ } catch (Exception ex) {
+ public static byte[] decrypt(byte[] encrypted) {
+ byte[] original = null;
+ byte[] raw = new byte[]{'A', 'b', 'c', 'D', 'E', 'f', 'g', 'z', '4', 'x', '9', '9', '0', 'O', 'c', 'j'};
+ Key key = new SecretKeySpec(raw, "AES");
+ cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
+ //the block size (in bytes), or 0 if the underlying algorithm is not a block cipher
+ byte[] ivByte = new byte[cipher.getBlockSize()];
+ //This class specifies an initialization vector (IV). Examples which use
+ //IVs are ciphers in feedback mode, e.g., DES in CBC mode and RSA ciphers with OAEP encoding operation.
+ IvParameterSpec ivParamsSpec = new IvParameterSpec(ivByte);
+ cipher.init(Cipher.DECRYPT_MODE, key, ivParamsSpec);
+ original = cipher.doFinal(encrypted);
+ } catch (Exception ex) {
