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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. |
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