Compositional analysis of protocol equivalence in the applied pi-calculus using quasi-open bisimilarity

Horne, Ross and Mauw, Sjouke and Yurkov, Semen; Cerone, Antonio and Ölveczky, Peter Csaba, eds. (2021) Compositional analysis of protocol equivalence in the applied pi-calculus using quasi-open bisimilarity. In: Theoretical Aspects of Computing – ICTAC 2021. Lecture Notes in Computer Science - LNCS, 12819 . Springer: Lecture Notes in Computer Science, KAZ, pp. 235-255. ISBN 9783030853150 (https://doi.org/10.1007/978-3-030-85315-0_14)

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Abstract

This paper shows that quasi-open bisimilarity is the coarsest bisimilarity congruence for the applied -calculus. Furthermore, we show that this equivalence is suited to security and privacy problems expressed as an equivalence problem in the following senses: (1) being a bisimilarity is a safe choice since it does not miss attacks based on rich strategies; (2) being a congruence it enables a compositional approach to proving certain equivalence problems such as unlinkability; and (3) being the coarsest such bisimilarity congruence it can establish proofs of some privacy properties where finer equivalences fail to do so.

ORCID iDs

Horne, Ross ORCID logoORCID: https://orcid.org/0000-0003-0162-1901, Mauw, Sjouke and Yurkov, Semen; Cerone, Antonio and Ölveczky, Peter Csaba