A Game-Theoretic Approach to Stochastic Security and Dependability Evaluation

Authors:
Karin Sallhammar;Bjarne E. Helvik;Sven J. Knapskog
Affiliations:
Norwegian University of Science and Technology, Norway;Norwegian University of Science and Technology, Norway;Norwegian University of Science and Technology, Norway
Venue:
DASC '06 Proceedings of the 2nd IEEE International Symposium on Dependable, Autonomic and Secure Computing
Year:
2006

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Abstract

The complex networked computer systems of today are often vulnerable to a large number of failures, accidental as well as intentional. To be able to assess to what degree one can rely on such a system, new methods for quantitative evaluation is needed. This paper presents a stochastic model for integrated security and dependability evaluation, which models malicious attacker behavior as transitions between system states. To predict the probabilities of attack actions a game theoretic approach is applied. We demonstrate the method by computing security and dependability measures in two different case studies.