cM2z9aJV

1public String harden(String unencryptedString) throws NoSuchAlgorithmException, UnsupportedEncodingException, NoSuchPaddingException, InvalidKeyException, IllegalBlockSizeException, BadPaddingException {
2	MessageDigest md = MessageDigest.getInstance("md5");
3	byte[] digestOfPassword = md.digest(key.getBytes("utf-8"));
4	byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);
5
6	for (int j = 0, k = 16; j < 8;) {
7		keyBytes[k++] = keyBytes[j++];
8	}
9
10	SecretKey secretKey = new SecretKeySpec(keyBytes, "DESede");
11	Cipher cipher = Cipher.getInstance("DESede/ECB/PKCS5Padding");
12	cipher.init(Cipher.ENCRYPT_MODE, secretKey);
13
14	byte[] plainTextBytes = unencryptedString.getBytes("utf-8");
15	byte[] buf = cipher.doFinal(plainTextBytes);
16	byte[] base64Bytes = Base64.encodeBase64(buf);
17	String base64EncryptedString = new String(base64Bytes);
18
19	return base64EncryptedString;
20}
21    
22public String soften(String encryptedString) throws UnsupportedEncodingException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, IllegalBlockSizeException, BadPaddingException {
23	if(encryptedString == null)
24	{
25		return "";
26	}
27	byte[] message = Base64.decodeBase64(encryptedString.getBytes("utf-8"));
28
29	MessageDigest md = MessageDigest.getInstance("MD5");
30	byte[] digestOfPassword = md.digest(key.getBytes("utf-8"));
31	byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);
32	
33	for (int j = 0, k = 16; j < 8;) {
34		keyBytes[k++] = keyBytes[j++];
35	}
36	
37	SecretKey secretKey = new SecretKeySpec(keyBytes, "DESede");
38
39	Cipher decipher = Cipher.getInstance("DESede/ECB/PKCS5Padding");
40	decipher.init(Cipher.DECRYPT_MODE, secretKey);
41
42	byte[] plainText = decipher.doFinal(message);
43
44	return new String(plainText, "UTF-8");
45
46}