Not able to use WindowsForms Authentication

Question

4.00/5 (1 vote)

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hi,

I am making a WCF service which is a restful service, so there is not a session maintained, as the users will be different mobile platforms like Apple , Android and symbian,

but the problem is i want to make use of windows forms authentication, i have used an OAUTH implementation for authentication purpose, but for subsequent calls my client wants me to use windowsforms authentication, and he wants the session to be closed after 12 hours, so i just made a POC (Proof Of concept) for it but its not Running,

Can any body help

Here is the Code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web.Security;
namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            Program user1 = new Program();
            string ticket = user1.MakeTicket();
            Console.WriteLine(ticket);
            Console.ReadKey();
            Console.WriteLine("Check the ticket");
            string ticketcheck = ticket;
            Console.WriteLine(user1.CheckTicket(ticketcheck).ToString());
            Console.ReadKey();
        }

        private string MakeTicket()
        {
            // Create a custom FormsAuthenticationTicket containing
            Boolean isPersistent = true;
            FormsAuthenticationTicket ticket = new FormsAuthenticationTicket("accesstoken", isPersistent, 1);
            // Encrypt the ticket and return
            return FormsAuthentication.Encrypt(ticket);

        }
        private Boolean CheckTicket(string TicketToCheck)
        {
            FormsAuthenticationTicket ticket = FormsAuthentication.Decrypt(TicketToCheck);  // here it gives an error saying invalid data

            if (ticket.Expired)
            {
                return false;
            }
            else
            {
                return true;
            }

        }
    }
}

AND GETTING THE FOLLOWING EXCEPTION

System.Web.HttpException was unhandled by user code<br />
Message=Unable to validate data.<br />
Source=System.Web<br />
ErrorCode=-2147467259<br />
WebEventCode=0<br />
StackTrace:<br />
at System.Web.Configuration.MachineKeySection.EncryptOrDecryptData(Boolean fEncrypt, Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Boolean useValidationSymAlgo, Boolean useLegacyMode, IVType ivType, Boolean signData)<br />
at System.Web.Security.FormsAuthentication.Decrypt(String encryptedTicket)<br />
at WCFCustomAuthenticationTest.Service1.GetTicketExpiry(String Ticket) in c:\users\kundran\documents\visual studio 2010\Projects\WCFCustomAuthenticationTest\WCFCustomAuthenticationTest\Service1.svc.cs:line 46<br />
at SyncInvokeGetTicketExpiry(Object , Object[] , Object[] )<br />
at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)<br />
at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)<br />
InnerException:

Regards
Nakul Kundra

Posted 8-May-11 23:47pm

nakulkundra

Updated 9-May-11 18:13pm

v2

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#realJSOP · Accepted Answer · 2011-05-09T00:02:00

Solution 1

Telling us it says "invalid data" doesn't give us nearly enough info to help you. Have you considered running it under the debugger to see what's wrong?

Posted 9-May-11 0:02am

#realJSOP

Comments

nakulkundra 10-May-11 0:12am

This is the Exception Details

System.Web.HttpException was unhandled by user code
Message=Unable to validate data.
Source=System.Web
ErrorCode=-2147467259
WebEventCode=0
StackTrace:
at System.Web.Configuration.MachineKeySection.EncryptOrDecryptData(Boolean fEncrypt, Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Boolean useValidationSymAlgo, Boolean useLegacyMode, IVType ivType, Boolean signData)
at System.Web.Security.FormsAuthentication.Decrypt(String encryptedTicket)
at WCFCustomAuthenticationTest.Service1.GetTicketExpiry(String Ticket) in c:\users\kundran\documents\visual studio 2010\Projects\WCFCustomAuthenticationTest\WCFCustomAuthenticationTest\Service1.svc.cs:line 46
at SyncInvokeGetTicketExpiry(Object , Object[] , Object[] )
at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)
InnerException: