License: Creative Commons Attribution 4.0 International license (CC BY 4.0)
When quoting this document, please refer to the following
DOI: 10.4230/LIPIcs.CONCUR.2022.30
URN: urn:nbn:de:0030-drops-170930
URL: http://dagstuhl.sunsite.rwth-aachen.de/volltexte/2022/17093/
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Aubert, Clément ; Horne, Ross ; Johansen, Christian

Diamonds for Security: A Non-Interleaving Operational Semantics for the Applied Pi-Calculus

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LIPIcs-CONCUR-2022-30.pdf (2 MB)

Abstract

We introduce a non-interleaving structural operational semantics for the applied π-calculus and prove that it satisfies the properties expected of a labelled asynchronous transition system (LATS). LATS have well-studied relations with other standard non-interleaving models, such as Mazurkiewicz traces or event structures, and are a natural extension of labelled transition systems where the independence of transitions is made explicit. We build on a considerable body of literature on located semantics for process algebras and adopt a static view on locations to identify the parallel processes that perform a transition. By lifting, in this way, work on CCS and π-calculus to the applied π-calculus, we lay down a principled foundation for reusing verification techniques such as partial-order reduction and non-interleaving equivalences in the field of security. The key technical device we develop is the notion of located aliases to refer unambiguously to a specific output originating from a specific process. This light mechanism ensures stability, avoiding disjunctive causality problems that parallel extrusion incurs in similar non-interleaving semantics for the π-calculus.

BibTeX - Entry

@InProceedings{aubert_et_al:LIPIcs.CONCUR.2022.30,
  author =	{Aubert, Cl\'{e}ment and Horne, Ross and Johansen, Christian},
  title =	{{Diamonds for Security: A Non-Interleaving Operational Semantics for the Applied Pi-Calculus}},
  booktitle =	{33rd International Conference on Concurrency Theory (CONCUR 2022)},
  pages =	{30:1--30:26},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-246-4},
  ISSN =	{1868-8969},
  year =	{2022},
  volume =	{243},
  editor =	{Klin, Bartek and Lasota, S{\l}awomir and Muscholl, Anca},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/opus/volltexte/2022/17093},
  URN =		{urn:nbn:de:0030-drops-170930},
  doi =		{10.4230/LIPIcs.CONCUR.2022.30},
  annote =	{Keywords: Security, Processes, Structural operational semantics, Asynchronous transition systems, Applied pi-calculus}
}

Keywords: Security, Processes, Structural operational semantics, Asynchronous transition systems, Applied pi-calculus
Collection: 33rd International Conference on Concurrency Theory (CONCUR 2022)
Issue Date: 2022
Date of publication: 06.09.2022

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