xmPtj6WY

1public void encrypt(){
2        //encrypt
3        String decrypted = null;
4        String encryptedData = null; //getBytes("UTF-8")
5        EditText mEdit = (EditText)findViewById(R.id.editText);
6        str_key = (String) mEdit.getText().toString();
7
8        int iterationCount = 1000;
9        int keyLength = 128; //256
10        int saltLength = keyLength / 8; // same size as key output
11
12        SecureRandom random = new SecureRandom();
13        salt = new byte[saltLength];
14        random.nextBytes(salt);
15        KeySpec keySpec = new PBEKeySpec(str_key.toCharArray(), salt, iterationCount, keyLength);
16        SecretKeyFactory keyFactory = null;
17        try {
18            keyFactory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
19        } catch (NoSuchAlgorithmException e) {
20            e.printStackTrace();
21        }
22        byte[] keyBytes = new byte[0];
23        try {
24            keyBytes = keyFactory.generateSecret(keySpec).getEncoded();
25        } catch (InvalidKeySpecException e) {
26            e.printStackTrace();
27        }
28        SecretKey key = new SecretKeySpec(keyBytes, "Blowfish");