[Resource Topic] 2012/340: Deciding Epistemic and Strategic Properties of Cryptographic Protocols

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Title:
Deciding Epistemic and Strategic Properties of Cryptographic Protocols

Authors: Henning Schnoor

Abstract:

We propose a new, widely applicable model for analyzing knowledge-based (epistemic) and strategic properties of cryptographic protocols. We prove that the corresponding model checking problem with respect to an expressive epistemic strategic logic is decidable. As corollaries, we obtain decidability of complex security properties including coercion-resistance of voting protocols, accountability of protocols using a trusted third party, and abuse-freeness of contract signing protocols.

ePrint: https://eprint.iacr.org/2012/340

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