// (c) 2006 Richard Grimes
// www.grimes.demon.co.uk

using System;
using System.Security.Cryptography;
using System.Text;

class App
{
   static void Main()
   {
      RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
      string clearText = "the quick brown fox...";
      byte[] enc = rsa.Encrypt(Encoding.ASCII.GetBytes(clearText), true);
      Console.WriteLine(BitConverter.ToString(enc));
      RSAParameters publicKey = rsa.ExportParameters(false);
      RSACryptoServiceProvider rsaPub = new RSACryptoServiceProvider();
      rsaPub.ImportParameters(publicKey);
      try
      {
         byte[] dec = rsaPub.Decrypt(enc, true);
         Console.WriteLine(Encoding.ASCII.GetString(dec));
      }
      catch (Exception e)
      {
         Console.WriteLine(e.ToString());
      }
   }
}