An authentication protocol interface is described that allows a user to authenticate into, or login to, a PC based environment using a non-pc device. It also provides the user with a transparent method of "programming" the interface so that the interface behaves the way a user wants the next time they use the system. The invention further enables a user to avoid authentication altogether by allowing the settop box to serve as the login authority for certain tasks. The invention operates in a non-PC environment where the use of a mouse and other MS Windows.RTM. interface components (i.e., check boxes, radio dials, and the like) are not allowed.