Relationship-Based Access Control Policies and Their Policy Languages

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dc.contributor.authorFong, Philipeng
dc.contributor.authorSiahaan, Idaeng
dc.date.accessioned2011-01-24T17:29:45Z
dc.date.available2011-01-24T17:29:45Z
dc.date.issued2011-01-24T17:29:45Z
dc.description.abstractThe Relationship-Based Access Control (ReBAC) model was recently proposed as a general-purpose access control model. It supports the natural expression of parameterized roles, the composition of policies, and the delegation of trust. Fong proposed a policy language that is based on Modal Logic for expressing and composing ReBAC policies. A natural question is whether such a language is representationally complete, that is, whether the language is capable of expressing all ReBAC policies that one is interested in expressing. In this work, we argue that the extensive use of what we call Relational Policies is what distinguishes ReBAC from traditional access control models. We show that Fong’s policy language is representationally incomplete in that certain previously studied Relational Policies are not expressible in the language. We introduce two extensions to the policy language of Fong, and prove that the extended policy language is representationally complete with respect to a well-defined subclass of Relational Policies.eng
dc.description.refereedNoeng
dc.identifier.department2011-990-02eng
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/30604
dc.identifier.urihttp://hdl.handle.net/1880/48388
dc.language.isoengeng
dc.publisher.corporateUniversity of Calgaryeng
dc.publisher.facultyScienceeng
dc.subjectSecurityeng
dc.subjectLanguageeng
dc.subjectTheoryeng
dc.subject.otherAccess control policies, modal logic, policy languages, relationship-based access control, social networkseng
dc.titleRelationship-Based Access Control Policies and Their Policy Languageseng
dc.typetechnical reporteng
thesis.degree.disciplineComputer Scienceeng
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