I am trying to navigate from one website on my localhost to second website on my localhost.

Both sites have their own membership provider. I'm trying to use a FormsAuthorizationTicket from site #1 to SSO a user into site #2.

Currently I'm getting this error:
System.Security.Cryptography.CryptographicException: Padding is invalid and cannot be removed

Steps I have taken up to this point include:
 Setting the element to specific key values
 Set the machineKey attributes of validation and encryption to "3DES"
 Verified through logging that the encrypted ticket has the same value in the #2 website as it was given in the #1 website.

---

My code is here:

```
        *FormsAuthentication.Initialize();
        FormsAuthenticationTicket newTicket = new 
            FormsAuthenticationTicket(1 // Ticket Version
            , Login1.UserName                       // User Name
            , DateTime.Now                          // Creation Date
            , DateTime.Now.AddDays(1)   // Expiration Date
            , true                                              // Is Persistant
            , Login1.UserName);                 // This should be a list of Roles

        string strEncyptedTicket = FormsAuthentication.Encrypt(newTicket);
        HttpCookie myCookie = new HttpCookie("cryptCookie", strEncyptedTicket);
        myCookie.Values.Add("username", Login1.UserName);
        myCookie.Values.Add("cryptTick", strEncyptedTicket);
        Response.Cookies.Add(myCookie);*

```

---

In website #2 I created a landing page to verify the ticket and redirect to a members only page. During decryption is when I get the error specified above. 

Here is my landing page code on website #2:

---

```
        *FormsAuthenticationTicket fat2 = FormsAuthentication.Decrypt(Request.Cookies["cryptCookie"].Values["cryptTick"]);

        MembershipUser mu = Membership.GetUser(Request.Cookies["cryptCookie"].Values["username"]);
        if (mu == null)
        {
            lblInfo.Text += "member not found";
            return;
        }

        Response.Redirect(@"~\MemberPages\MemberPage.aspx");*

```

If anyone has an idea to help I'll be happy to try.