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Conference Papers Year : 2018

DEEPSEC: Deciding Equivalence Properties in Security Protocols - Theory and Practice

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Vincent Cheval
Steve Kremer

Abstract

Automated verification has become an essential part in the security evaluation of cryptographic protocols. Recently, there has been a considerable effort to lift the theory and tool support that existed for reachability properties to the more complex case of equivalence properties. In this paper we contribute both to the theory and practice of this verification problem. We establish new complexity results for static equivalence, trace equivalence and labelled bisimilarity and provide a decision procedure for these equivalences in the case of a bounded number of sessions. Our procedure is the first to decide trace equivalence and labelled bisimilarity exactly for a large variety of cryptographic primitives—those that can be represented by a subterm convergent destructor rewrite system. We implemented the procedure in a new tool, DEEPSEC. We showed through extensive experiments that it is significantly more efficient than other similar tools, while at the same time raises the scope of the protocols that can be analysed.
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Dates and versions

hal-01763122 , version 1 (10-04-2018)

Identifiers

  • HAL Id : hal-01763122 , version 1

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Vincent Cheval, Steve Kremer, Itsaka Rakotonirina. DEEPSEC: Deciding Equivalence Properties in Security Protocols - Theory and Practice. 39th IEEE Symposium on Security and Privacy, May 2018, San Francisco, United States. ⟨hal-01763122⟩
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