Papers › A Type System to Ensure Non-Interference in ReScript
A Type System to Ensure Non-Interference in ReScript
Benjamin Bennetzen, Daniel Vang Kleist, Emilie Sonne Steinmann, Loke Walsted, Nikolaj Rossander Kristensen, Peter Buus Steffensen
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Protecting confidential data from leaking is a critical challenge in computer systems, particularly given the growing number of observers on the internet. Therefore, limiting information flow using robust security policies becomes increasingly vital. We focus on the non-interference policy, where the goal is to ensure that confidential data can not impact public data. This paper presents a type system, for a subset of the ReScript syntax, designed to enforce non-interference. We conclude with a proof of soundness for the type system, demonstrating that if an expression is type-able, it is inherently non-interferent. In addition, we provide a brief overview of a type checker that implements the previously mentioned type system.
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