java spring username encode and decode

1private static final String ALGO = "AES";
2private static final byte[] keyValue = new byte[] { 'T', 'E', 'S', 'T' };
3
4
5/**
6 * Encrypt a string using AES encryption algorithm.
7 *
8 * @param pwd the password to be encrypted
9 * @return the encrypted string
10 */
11public static String encrypt(String pwd) {
12    String encodedPwd = "";
13    try {
14        Key key = generateKey();
15        Cipher c = Cipher.getInstance(ALGO);
16        c.init(Cipher.ENCRYPT_MODE, key);
17        byte[] encVal = c.doFinal(pwd.getBytes());
18        encodedPwd = Base64.getEncoder().encodeToString(encVal);
19
20    } catch (Exception e) {
21
22        e.printStackTrace();
23    }
24    return encodedPwd;
25
26}
27
28/**
29 * Decrypt a string with AES encryption algorithm.
30 *
31 * @param encryptedData the data to be decrypted
32 * @return the decrypted string
33 */
34public static String decrypt(String encryptedData) {
35    String decodedPWD = "";
36    try {
37        Key key = generateKey();
38        Cipher c = Cipher.getInstance(ALGO);
39        c.init(Cipher.DECRYPT_MODE, key);
40        byte[] decordedValue = Base64.getDecoder().decode(encryptedData);
41        byte[] decValue = c.doFinal(decordedValue);
42        decodedPWD = new String(decValue);
43
44    } catch (Exception e) {
45
46    }
47    return decodedPWD;
48}
49
50/**
51 * Generate a new encryption key.
52 */
53private static Key generateKey() {
54    SecretKeySpec key = new SecretKeySpec(keyValue, ALGO);
55    return key;
56}
57