1: using System;

   2: using System.Collections.Generic;

   3: using System.Linq;

   4: using System.Text;

   5: using System.Web;

   6:  

   7: namespace Site

   8: {

   9:     class EncryptCookies:IHttpModule

  10:     {

  11:         #region IHttpModule Members

  12:  

  13:         public void Dispose()

  14:         {

  15:             

  16:         }

  17:  

  18:         public void Init(HttpApplication context)

  19:         {

  20:             context.AcquireRequestState += new EventHandler(context_AcquireRequestState);

  21:             context.EndRequest += new EventHandler(context_EndRequest);

  22:         }

  23:  

  24:         void context_EndRequest(object sender, EventArgs e)

  25:         {

  26:             HttpContext Context = ((HttpApplication)sender).Context;

  27:             HttpApplication Application = (HttpApplication)sender;

  28:             if (Application.Context.CurrentHandler is System.Web.UI.Page)

  29:             {

  30:                 foreach (string CookieName in Context.Response.Cookies.Keys)

  31:                 {

  32:                     if (!CookieName.Equals("ASP.NET_SessionId"))

  33:                     {

  34:                         if (Context.Response.Cookies[CookieName].Values.Count > 1)

  35:                         {

  36:                             for (int x = 0; x < Context.Response.Cookies[CookieName].Values.Keys.Count; ++x)

  37:                             {

  38:                                 Context.Response.Cookies[CookieName].Values[Context.Response.Cookies[CookieName].Values.Keys[x]] = //Encrypt the string here

  39:                             }

  40:                         }

  41:                     }

  42:                     else

  43:                     {

  44:                         Context.Response.Cookies[CookieName].Value = //Encrypt the string here

  45:                     }

  46:                 }

  47:             }

  48:         }

  49:  

  50:         void context_AcquireRequestState(object sender, EventArgs e)

  51:         {

  52:             HttpContext Context = ((HttpApplication)sender).Context;

  53:             HttpApplication Application = (HttpApplication)sender;

  54:             if (Application.Context.CurrentHandler is System.Web.UI.Page)

  55:             {

  56:                 foreach (string CookieName in Context.Request.Cookies.Keys)

  57:                 {

  58:                     if (!CookieName.Equals("ASP.NET_SessionId"))

  59:                     {

  60:                         if (Context.Request.Cookies[CookieName].Values.Count > 1)

  61:                         {

  62:                             for (int x = 0; x < Context.Request.Cookies[CookieName].Values.Keys.Count; ++x)

  63:                             {

  64:                                 Context.Request.Cookies[CookieName].Values[Context.Request.Cookies[CookieName].Values.Keys[x]] = //Decrypt the string here

  65:                             }

  66:                         }

  67:                         else

  68:                         {

  69:                             Context.Request.Cookies[CookieName].Value = //Decrypt the string here

  70:                         }

  71:                     }

  72:                 }

  73:             }

  74:         }

  75:  

  76:         #endregion

  77:     }

  78: }