Tobias Nipkow - Verifying a Hotel Key Card System

Mittwoch 20.5.2009

16:00 Uhr, Raum E 202

 

Prof. Tobias Nipkow (TU Muenchen)

Verifying a Hotel Key Card System
Two models of an electronic hotel key card system are contrasted: a
state based and a trace based one. Both are defined, verified, and
proved equivalent in the theorem prover Isabelle/HOL. It is shown that
if a guest follows a certain safety policy regarding her key cards, she
can be sure that nobody but her can enter her room.