Making security type systems less ad hoc

Tobias Nipkow 1  and Andrei Popescu 1
  • 1 Fakultät für Informatik, Technische Universität München


We present a uniform, top-down design method for security type systems applied to a parallel while-language. The method takes the following route: from a notion of end-to-end security via a collection of stronger notions of anytime security targeting compositionality to a matching collection of type-system-like syntactic criteria. This method has emerged by distilling and unifying security type system results from the literature while formalizing them in a proof assistant. Unlike in our previous papers on this topic, here we focus entirely on high-level ideas instead of technical proof details.

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