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1public class TWOFISH {
2
3    public static byte[] encrypt(String toEncrypt, String key) throws Exception {
4      // create a binary key from the argument key (seed)
5      SecureRandom sr = new SecureRandom(key.getBytes());
6      KeyGenerator kg = KeyGenerator.getInstance("twofish");
7      kg.init(sr);
8      SecretKey sk = kg.generateKey();
9
10      // create an instance of cipher
11      Cipher cipher = Cipher.getInstance("twofish");
12
13      // initialize the cipher with the key
14      cipher.init(Cipher.ENCRYPT_MODE, sk);
15
16      // enctypt!
17      byte[] encrypted = cipher.doFinal(toEncrypt.getBytes());
18
19      return encrypted;
20   }
21
22   public static String decrypt(byte[] toDecrypt, String key) throws Exception {
23      // create a binary key from the argument key (seed)
24      SecureRandom sr = new SecureRandom(key.getBytes());
25      KeyGenerator kg = KeyGenerator.getInstance("twofish");
26      kg.init(sr);
27      SecretKey sk = kg.generateKey();
28
29      // do the decryption with that key
30      Cipher cipher = Cipher.getInstance("twofish");
31      cipher.init(Cipher.DECRYPT_MODE, sk);
32      byte[] decrypted = cipher.doFinal(toDecrypt);
33
34      return new String(decrypted);
35   }
36}