LPr1bf4w

1 private static void decrypt2(FileInputStream fis, FileOutputStream fos) throws NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException, InvalidAlgorithmParameterException, InvalidKeyException, IOException, BadPaddingException, IllegalBlockSizeException {
2        byte[] iv = new byte[16];
3        // NEED IV
4        Log.d(TAG, iv.toString());
5
6        SecretKeyFactory factory = SecretKeyFactory.getInstance(factoryKey);
7        KeySpec keySpec = new PBEKeySpec(key.toCharArray());
8        SecretKey temp = factory.generateSecret(keySpec);
9        SecretKey secret = new SecretKeySpec(temp.getEncoded(), "AES");
10        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
11        cipher.init(Cipher.DECRYPT_MODE, secret, new IvParameterSpec(iv));
12        byte[] in = new byte[64];
13        int read;
14        while ((read = fis.read(in)) != -1) {
15            byte[] output = cipher.update(in, 0, read);
16            if (output != null)
17                fos.write(output);
18        }
19
20        byte[] output = cipher.doFinal();
21        if (output != null)
22            fos.write(output);
23        fis.close();
24        fos.flush();
25        fos.close();
26    }