using System;
using System.Security.Cryptography;

namespace JavaScienceCrypto{

public class Win32 {

 public class RandomNet {
  const String title = "RandomNet";

   public static void Main() {
	String[] args = Environment.GetCommandLineArgs();
	if(args.Length<2){
	 Console.WriteLine("Usage:  RandomNet  [int from 5 to 5000]");
	 return;
	 }
	String fname = args[1];
	int numbytes=0;
	try{
	 numbytes = Int32.Parse(args[1]);
	 }
	catch(FormatException fexc){
	 Console.WriteLine("Argument not a valid integer");
	 return;
	 }
	catch(Exception exc){
	 Console.WriteLine("Problem parsing argument {0}\n{1}", args[1], exc);
	 return;
	}
  byte[] ranbytes = new byte[numbytes];
  RNGCryptoServiceProvider randgen= new RNGCryptoServiceProvider();
  randgen.GetBytes(ranbytes); // The array is now filled with cryptographically strong random bytes.

  Console.WriteLine("------------- Random Bytes[{0}]: ----------------------", numbytes);
  for(int i=1; i<=ranbytes.Length; i++){	
	Console.Write("{0:x2}  ", ranbytes[i-1]) ;
	if(i%16 == 0)
	 Console.WriteLine("");
	}
  Console.WriteLine("\n-------------------------------------------------------");

  }
 }
 }
}