Dawson, Jeremy; Tiu, Alwen
We consider a formalisation of a notion of observer (or intruder) theories, commonly used in symbolic analysis of security protocols. An observer theory describes the knowledge and capabilities of an observer, and can be given a formal account using deductive systems, such as those used in various "environment-sensitive" bisimulation for process calculi, e.g., the spi-calculus. Two notions are critical to the correctness of such formalisations and the effectiveness of symbolic techniques based...[Show more]
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