Zcp405xx

1 public boolean encryptFile(String path, String outputPath) {
2        return doStuff(path, outputPath, key, Cipher.ENCRYPT_MODE);
3    }
4
5    private static boolean doStuff(String pathIn, String pathOut, SecretKey key, int mode) {
6
7        FileInputStream in;
8        FileOutputStream out;
9
10        try {
11            in = new FileInputStream(pathIn);
12            out = new FileOutputStream(pathOut);
13
14        } catch (FileNotFoundException e) {
15            return false;
16        }
17
18        Cipher c = getCipher(key, mode);
19        return c != null && writeToFile(in, new CipherOutputStream(out, c));
20    }
21
22    private static boolean writeToFile(InputStream in, OutputStream out) {
23
24        byte[] buffer = new byte[2048];
25        int read_bytes;
26
27        while (true) {
28            try {
29                if ((read_bytes = in.read(buffer)) == -1) break;
30                out.write(buffer, 0, read_bytes);
31            } catch (IOException e) {
32                return false;
33            }
34        }
35
36        try {
37            in.close();
38            out.close();
39        } catch (IOException ignored) {}
40
41        return true;
42    }
43
44    private static Cipher getCipher(SecretKey key, int mode) {
45
46        try {
47            Cipher c = Cipher.getInstance(ALGO);
48            c.init(mode, key);
49            return c;
50        } catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException e) {
51            return null;
52        }
53    }