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dc.contributor.authorKolovski, Vladimir
dc.contributor.authorHendler, James A.
dc.contributor.authorParsia, Bijan
dc.date.accessioned2022-02-18T02:40:02Z
dc.date.available2022-02-18T02:40:02Z
dc.date.issued2007-05-12
dc.identifier.other314
dc.identifier.urihttp://archive.tw.rpi.edu/media/latest/AnalyzingWebAccessControlPolicies.pdf
dc.identifier.urihttps://hdl.handle.net/20.500.13015/4716
dc.description.abstractXACML has emerged as a popular access control language on the Web, but because of its rich expressiveness, it has proved difficult to analyze in an automated fashion. In this paper, we present a formalization of XACML using description logics (DL), which are a decidable fragment of FirstOrder logic. This formalization allows us to cover a more expressive subset of XACML than propositional logic-based analysis tools, and in addition we provide a new analysis service (policy redundancy). Also, mapping XACML to description logics allows us to use off-the-shelf DL reasoners for analysis tasks such as policy comparison, verification and querying. We provide empirical evaluation of a policy analysis tool that was implemented on top of open source DL reasoner Pellet.
dc.titleAnalyzing web access control policies


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