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Logic Journal of IGPL 2005 13(6):637-663; doi:10.1093/jigpal/jzi048
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© The Author, 2005. Published by Oxford University Press. All rights reserved.

Original Articles

Relating Strand Spaces and Distributed Temporal Logic for Security Protocol Analysis

Carlos Caleiro1, Luca Viganò2 and David Basin3

1 CLC, Department of Mathematics, IST, Lisbon, Portugal. Email: ccal{at}math.ist.utl.pt, 2 Department of Computer Science, ETH Zurich, Switzerland. Email: vigano{at}inf.ethz.ch, 3 Department of Computer Science, ETH Zurich, Switzerland. Email: basin{at}inf.ethz.ch

In previous work, we introduced a version of distributed temporal logic that is well-suited both for verifying security protocols and as a metalogic for reasoning about, and relating, different security protocol models. In this paper, we formally investigate the relationship between our approach and strand spaces, which is one of the most successful and widespread formalisms for analyzing security protocols. We define translations between models in our logic and strand-space models of security protocols, and we compare the results obtained with respect to the level of abstraction that is inherent in each of the formalisms. This allows us to clarify different aspects of strand spaces that are often left implicit, as well as pave the way to transfer results, techniques and tools across the two approaches.

Key Words: Security protocols, protocol models, strand spaces, distributed temporal logic.

Received 10 June 2005.


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