Use the Authentication Methods page to select the methods that can be used for authentication at the STS. Methods determine the credentials the user must supply for authentication and the user store that is used to verify the credentials. WS Federation does not use methods for authentication.
Click Devices > Identity Servers > Edit > WS Federation > STS Authentication Methods.
To enable a method, move the method from Available methods to Methods.
All methods that you have defined for Identity Server appear in Available methods, but the only default method that works is the Secure Name/Password-Form method. It has been extended so that it knows how to extract name and password information from a managed card that is not backed by a personal card. You can use the Secure Name/Password-Form class to create additional methods for specific user stores.
You can create a custom method. For information, see Access Manager Developer Resources.
Click OK and update Identity Server.