Ontology Driven Community Access Control

Giunchiglia, Fausto and Zhang, Rui and Crispo, Bruno (2008) Ontology Driven Community Access Control. UNSPECIFIED. (Submitted)

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    Abstract

    In this paper we present RelBAC(for Relation Based Access Control), a model and a logic for access control which models communities, possibly nested, and resources, possibly organized inside complex file systems, as lightweight ontologies, and permissions as relations between subjects and objects. RelBACallows us to represent expressive access control rules beyond the current state of the art, and to deal with the strong dynamics of subjects, objects and permissions which arise in Web 2.0 applications (e.g. social networks). Finally, as shown in the paper, using RelBAC, it becomes possible to reason about access control policies and, in particular to compute candidate permissions by matching subject ontologies (representing their interests) with resource ontologies (describing their characteristics).

    Item Type: Departmental Technical Report
    Department or Research center: Information Engineering and Computer Science
    Subjects: Q Science > QA Mathematics > QA076 Computer software
    Additional Information: A short version accepted at the workshop of Trust and Privacy on the Social and Semantic Web (SPOT2009) co-located with the European Semantic Web Conference (ESWC), Crete, 2009
    Report Number: DISI-08-080
    Repository staff approval on: 22 Apr 2009

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