Can Bach in Scala secure asynchronous communication?
The B2Scala Tool: Integrating Bach in Scala with Security in Mind
This paper introduces B2Scala, a tool embedding the Bach coordination language within Scala, for analyzing security protocols. Bach uses asynchronous communication via a shared data space (similar to Linda), which naturally models network interactions. B2Scala leverages Scala's ecosystem (type system, concise syntax) and Bach's process algebra abstractions for modeling concurrent agent behavior. A logic language called bsL allows constraining execution paths for analysis. The Needham-Schroeder protocol is used as a case study, demonstrating how B2Scala automatically reproduces a known security attack.
The key point relevant to LLM-based multi-agent systems is the asynchronous communication model using a shared data space (the "store"). This mirrors how LLMs in a multi-agent setting might interact: by posting and retrieving messages/information from a central location rather than directly exchanging messages. B2Scala's bsL logic provides a mechanism analogous to how one might want to control and analyze multi-agent LLM interactions by specifying allowed and disallowed communication patterns. This approach is particularly relevant for controlling LLM agents and verifying they meet specified interaction criteria.