vHmUi1jd

1FileOutputStream out = new FileOutputStream("output.txt");
2        String key="12345678";
3        
4        DESKeySpec des=new DESKeySpec(key.getBytes());
5        SecretKeyFactory s= SecretKeyFactory.getInstance("DES");
6        SecretKey key1= s.generateSecret(des);
7       
8        Cipher c= Cipher.getInstance("DES");
9        c.init(Cipher.ENCRYPT_MODE,key1);
10        CipherInputStream in= new CipherInputStream(new FileInputStream("input.txt"), c);
11        int temp = in.read();
12        while(temp!=-1){
13            temp=in.read();
14            out.write(temp);        
15        }
16        in.close();
17        out.close();