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A certified lightweight non-interference Java bytecode verifier†
Published online by Cambridge University Press: 17 May 2013
Abstract
Non-interference guarantees the absence of illicit information flow throughout program execution. It can be enforced by appropriate information flow type systems. Much of the previous work on type systems for non-interference has focused on calculi or high-level programming languages, and existing type systems for low-level languages typically omit objects, exceptions and method calls. We define an information flow type system for a sequential JVM-like language that includes all these programming features, and we prove, in the Coq proof assistant, that it guarantees non-interference. An additional benefit of the formalisation is that we have extracted from our proof a certified lightweight bytecode verifier for information flow. Our work provides, to the best of our knowledge, the first sound and certified information flow type system for such an expressive fragment of the JVM.
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- Copyright © Cambridge University Press 2013
Footnotes
This work was partially funded by European Projects FP7-231620 HATS and FP7-256980 NESSoS, Spanish project TIN2009-14599 DESAFIOS 10, Madrid Regional project S2009TIC-1465 PROMETIDOS and French Brittany region project CertLogS.
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