FormsAuthentication.Decrypt Method
Creates a FormsAuthenticationTicket object based on the encrypted forms-authentication ticket passed to the method.
Assembly: System.Web (in System.Web.dll)
Parameters
- encryptedTicket
- Type: System.String
The encrypted authentication ticket.
Return Value
Type: System.Web.Security.FormsAuthenticationTicketA FormsAuthenticationTicket object. If the encryptedTicket parameter is not a valid ticket, null is returned.
| Exception | Condition |
|---|---|
| ArgumentException | encryptedTicket is null. - or - encryptedTicket is an empty string (""). - or - The length of encryptedTicket is greater than 4096 characters. - or - encryptedTicket is of an invalid format. |
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.