Transparent Cookie Encryption Via HTTP Module

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace CookieEncryptionTestWeb
{
	/// <summary>
	/// Summary description for WebForm1.
	/// </summary>
	public class CookieEncryptionTester : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.Label Label4;
		protected System.Web.UI.WebControls.Label Label1;

	
		private void Page_Load(object sender, System.EventArgs e)
		{
			DateTime Now = DateTime.Now;

			HttpCookie TestCookie1 = Request.Cookies["TestCookie1"];
			HttpCookie TestCookie2 = Request.Cookies["TestCookie2"];
			HttpCookie TestCookie3 = Request.Cookies["TestCookie3"];
			HttpCookie TestCookie4 = Request.Cookies["TestCookie4"];

			if(TestCookie1 != null) 
			{
				Label1.Text = "Read Cookie 1: " +  TestCookie1.Value;
			}
			else
			{
				TestCookie1 = new HttpCookie("TestCookie1", "Value of TestCookie1 @ " + Now.ToLongTimeString());
				Response.Cookies.Add(TestCookie1);
			}

			if(TestCookie2 != null)
			{
				Label2.Text = "Read Cookie 2: " +  TestCookie2.Value;
			}
			else
			{
				TestCookie2 = new HttpCookie("TestCookie2", "Value of TestCookie2 @ " + Now.ToLongTimeString());
				TestCookie2.Expires = Now + new TimeSpan(1, 0, 0);
				Response.Cookies.Add(TestCookie2);
			}

			if(TestCookie3 != null) 
			{
				Label3.Text = "Read Cookie 3: " +  TestCookie3.Value;
			}
			else
			{
				TestCookie3 = new HttpCookie("TestCookie3", "Value of TestCookie3 @ " + Now.ToLongTimeString());
				Response.Cookies.Add(TestCookie3);
			}

			if(TestCookie4 != null)
			{
				Label4.Text = "Read Cookie 4: " +  TestCookie4.Value;
			}
			else
			{
				TestCookie4 = new HttpCookie("TestCookie4", "Value of TestCookie4 @ " + Now.ToLongTimeString());
				TestCookie4.Expires = Now + new TimeSpan(5, 0, 0);
				Response.Cookies.Add(TestCookie4);
			}
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion
	}
}