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Erschienen in:
2010 | OriginalPaper | Buchkapitel
Compositional Closure for Bayes Risk in Probabilistic Noninterference
verfasst von : Annabelle McIver, Larissa Meinicke, Carroll Morgan
Erschienen in: Automata, Languages and Programming
Verlag: Springer Berlin Heidelberg
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We give a quantitative sequential model for noninterference security with probability (but not demonic choice), and a novel
refinement
order that we prove to be the
greatest
compositional relation consistent with an “elementary” order based on Bayes Risk. This
compositional closure
complements our earlier work defining refinement similarly for qualitative noninterference with demonic choice (but not probability).
The
Three-Judges Protocol
illustrates our model’s utility: with compositionality, the embedded sub-protocols can be treated in isolation.