Typing Noninterference for Reactive Programs

Ana Almeida Matos 1 Gérard Boudol 1 Ilaria Castellani 1
1 MIMOSA - Migration and mobility : semantics and applications
CRISAM - Inria Sophia Antipolis - Méditerranée , Université de Provence - Aix-Marseille 1, MINES ParisTech - École nationale supérieure des mines de Paris
Abstract : We propose a type system to enforce the security property of noninterference in a core reactive language, obtained by extending the imperative language of Volpano, Smith and Irvine with reactive primitives manipulating broadcast signals and with a form of ``scheduled'' parallelism. Due to the particular nature of reactive computations, the definition of noninterference has to be adapted. We give a formulation of noninterference based on bisimulation. Our type system is inspired by that introduced by Boudol and Castellani, and independently by Smith, to cope with timing leaks in a language for parallel programs with scheduling. We establish the soundness of this type system with respect to our notion of noninterference.
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Submitted on : Friday, May 19, 2006 - 8:25:02 PM
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Ana Almeida Matos, Gérard Boudol, Ilaria Castellani. Typing Noninterference for Reactive Programs. [Research Report] RR-5594, INRIA. 2006, pp.38. ⟨inria-00070413⟩

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