Hotel Key Card System

Title:	Hotel Key Card System
Author:	Tobias Nipkow
Submission date:	2006-09-09
Abstract:	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.
Status: [ok]	This is the development version of this entry generated for Isabelle-25-Dec-2009. The development version might change over time and is only permanently archived at Isabelle release points. It is provided as a preview of the next upcoming release. Please refer to release versions only in citations. If the status shows [FAIL], the links below will point to the last working version if any.

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