/*
  All work, ineffciencies, and bugs 
  Copyright 2001 Kevin Fu <fubob@mit.edu>  
  May be freely reproduced for educational or personal use
  
  November 13, 2001
  
  6.857 Network and Computer Security
  http://web.mit.edu/6.857/www/
  
*/
     

import java.io.*;
import java.util.*;

public class eggTimer
{
    
    public static void main(String args[]) throws Exception
    {
	
	// might be useful...
	Random rnd = new Random();

	// sample of how to call smartcard...
	eggSmartCard e = new eggSmartCard();

	short p[]  = {0x03, 0x04, 0x45, 0x44, 0xF1, 0x6A, 0xCA, 0xFE};
	short c[]  = new short[8];
	short p2[]  = new short[8];
	
	try {	    
	    pp("Msg in: ", p);
	    e.timeScramble(p,c);
	    e.timeUnscramble(p2,c);
	    pp( " encrypts to ", c);
	    System.out.println();
	    pp("which decrypts to ", p2);
	}
	catch (Exception e){
	    e.printStackTrace();
	}
    }

    public static void pp(String s, short a[])
    { 
	System.out.print(s);
	for (int i=0; i<a.length; i++) 
	    { System.out.print(a[i]+ " "); }
	System.out.println();
    }
    
}