Sets the key being used for Passport encryption and decryption by referring to the site-name label assigned to that key when the key was first installed. This class is deprecated.
Assembly: System.Web (in System.Web.dll)
This class has been deprecated and is no longer supported. Microsoft Passport Network has been replaced by Windows Live ID. For more information about how to use Windows Live ID to authenticate users in a Web application, see Windows Live ID SDK.