Paralocks - Role-Based Information Flow Control and Beyond

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Executive Summary

This paper presents Paralocks, a language for building expressive but statically verifiable fine-grained information flow policies. Paralocks combine the expressive power of Flow Locks (Broberg & Sands, ESOP'06) with the ability to express policies involving runtime principles, roles (in the style of role-based access control), and relations (such as "Acts-for" in discretionary access control). The authors illustrate the Paralocks policy language by giving a simple encoding of Myers and Liskov's Decentralized Label Model (DLM). Furthermore - and unlike the DLM - they provide an information flow semantics for full Paralock policies.

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