What is the content of ASP.NET FormsAuthentication cookie value?

Question

What is the content of ASP.NET FormsAuthentication cookie value? How can I see the real value of the hashed string (in case that I have the decrypted key)?

Answer 1

Here you have all necessary information about the content of the authentication cookie

http://msdn.microsoft.com/en-us/library/ff647070.aspx

Check the section "Forms Authentication Cookies"

FormsAuthentication.Decrypt would decrypt the authentication ticket included on the forms authentication cookie.