How to decrypt forms authentication cookie across the domain in asp.net 3.5 RSS

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  pathipati

  Member

  16 Points

  314 Posts

  How to decrypt forms authentication cookie across the domain in asp.net 3.5

  Dec 18, 2010 07:42 AM|LINK

  Hi,

  I have created a encrypted cookie using formsauthenticationticket in aa.mydomain.com and when i am decripting that cookie in bb.mydomain.com website i am getting an exception "Unable to validate data." how to decrypt that cookiee in bb.mydomain.com and i specified the cokiee domain name in aa.mydomain.com website.
  

   

  My Code in aa.mydomain.com:

  rmsAuthenticationTicket fatPassword = new FormsAuthenticationTicket(1,

                                                       txtUserName.Text, DateTime.Now,

                                                       DateTime.Now.AddMinutes(5), false, txtPassword.Text),

                                                       FormsAuthentication.FormsCookiePath);

              HttpCookie ckPwd= new HttpCookie("ckPwd",

              FormsAuthentication.Encrypt(fatPassword));

              ckPwd.Domain = ConfigurationSettings.AppSettings["Domain"];

              Response.Cookies.Add(ckPwd);

  
   My Code in bb.mydomain.com:

   

                                  HttpCookie ckPassword= Request.Cookies["ckPwd"];

                                  FormsAuthenticationTicket ticket = FormsAuthentication.Decrypt(ckPwd.Value);

                                  string val = ticket.UserData;

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  Ebad86

  Member

  202 Points

  37 Posts

  Re: How to decrypt forms authentication cookie across the domain in asp.net 3.5

  Feb 21, 2012 04:43 AM|LINK

   you can code your web application to allow cookies across multiple subdomains. You will need to set the domain equal to:

  Response.Cookies("CookieName").Domain = ".mydomain.com"
  
  Hope it helps.