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Discrete Event Dynamic Systems

, Volume 25, Issue 4, pp 531–570 | Cite as

Enforcement and validation (at runtime) of various notions of opacity

  • Yliès Falcone
  • Hervé MarchandEmail author
Article

Abstract

We are interested in the validation of opacity. Opacity models the impossibility for an attacker to retrieve the value of a secret in a system of interest. Roughly speaking, ensuring opacity provides confidentiality of a secret on the system that must not leak to an attacker. More specifically, we study how we can model-check, verify and enforce at system runtime, several levels of opacity. Besides existing notions of opacity, we also introduce K-step strong opacity, a more practical notion of opacity that provides a stronger level of confidentiality.

Keywords

Opacity K-step opacity Runtime verification Runtime enforcement 

Notes

Acknowledgments

The authors would like to gratefully thank the anonymous reviewers for their helpful remarks.

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.UJF-Grenoble 1, Laboratoire d’Informatique de GrenobleSaint Martin d’HèresFrance
  2. 2.INRIA - Rennes Bretagne AtlantiqueRennes CedexFrance

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