Departmental Papers (CIS)

Date of this Version

July 2006

Document Type

Conference Paper

Comments

Copyright YEAR 2006. Reprinted from Proceedings of the 19th IEEE Computer Security Foundations Workshop, 2006, 12 pages. Publisher URL: 10.1109/CSFW.2006.13

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Abstract

This paper presents an embedded security sublanguage for enforcing information-flow policies in the standard Haskell programming language. The sublanguage provides useful information-flow control mechanisms including dynamic security lattices, run-time code privileges and declassification, without modifying the base language. This design avoids the redundant work of producing new languages, lowers the threshold for adopting security-typed languages, and also provides great flexibility and modularity for using security-policy frameworks. The embedded security sublanguage is designed using a standard combinator interface called arrows. Computations constructed in the sublanguage have static and explicit control-flow components, making it possible to implement information-flow control using static-analysis techniques at run time, while providing strong security guarantees. This paper presents a concrete Haskell implementation and an example application demonstrating the proposed techniques.

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Date Posted: 16 April 2007

This document has been peer reviewed.