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arXiv · 2412.08235

The B2Scala Tool: Integrating Bach in Scala with Security in Mind

Doha Ouardi·Manel Barkallah·Jean-Marie Jacquet
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Abstract

Process algebras have been widely used to verify security protocols in a formal manner. However they mostly focus on synchronous communication based on the exchange of messages. We present an alternative approach relying on asynchronous communication obtained through information available on a shared space. More precisely this paper first proposes an embedding in Scala of a Linda-like language, called Bach. It consists of a Domain Specific Language, internal to Scala, that allows us to experiment programs developed in Bach while benefiting from the Scala eco-system, in particular from its type system as well as program fragments developed in Scala. Moreover, we introduce a logic that allows to restrict the executions of programs to those meeting logic formulae. Our work is illustrated on the Needham-Schroeder security protocol, for which we manage to automatically rediscover the man-in-the-middle attack first put in evidence by G. Lowe.

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Doha Ouardi, Manel Barkallah, Jean-Marie Jacquet. 2024-12-11. The B2Scala Tool: Integrating Bach in Scala with Security in Mind. https://doi.org/10.4204/eptcs.414.4

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