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Erschienen in:
2013 | OriginalPaper | Buchkapitel
Types vs. PDGs in Information Flow Analysis
verfasst von : Heiko Mantel, Henning Sudbrock
Erschienen in: Logic-Based Program Synthesis and Transformation
Verlag: Springer Berlin Heidelberg
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Type-based and PDG-based information flow analysis techniques are currently developed independently in a competing manner, with different strengths regarding coverage of language features and security policies. In this article, we study the relationship between these two approaches. One key insight is that a type-based information flow analysis need not be less precise than a PDG-based analysis. For proving this result we establish a formal connection between the two approaches which can also be used to transfer concepts from one tradition of information flow analysis to the other. The adoption of rely-guarantee-style reasoning from security type systems, for instance, enabled us to develop a PDG-based information flow analysis for multi-threaded programs.