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OWL-Based Representation and Enforcement of Data Access Policies

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Title: OWL-Based Representation and Enforcement of Data Access Policies
Author(s): Pellegrini, Filippo
Advisor(s): Gmytrasiwicz, Piotr
Contributor(s): Cruz, Isabel; Lanzi, Pier Luca
Department / Program: Computer Science
Graduate Major: Computer Science
Degree Granting Institution: University of Illinois at Chicago
Degree: MS, Master of Science
Genre: Masters
Subject(s): OWL XACML policy enforcement representation data access control
Abstract: During the last years, policies have become a widespread approach for regulating access to data and managing privacy and security for a large number of multi-agent systems. The increasing amount of data, especially on the Web, requires the definition of more and more com- plex access norms, and policies seem to provide a suitable solution to this issue. A policy-based approach introduces many important features in access control, as support to dynamic change of policies at run-time, and brings benefits in terms of expressiveness, scalability, efficiency, flexibility, extensibility, context-sensitivity and verifiability. The aim of this thesis is to define a unified framework for expressing and enforcing policies, combining the standard XACML architecture and policy language with the benefits of OWL ontologies and reasoning technologies. A complete centralized architecture has been defined, and a prototype of some of its modules has been successfully developed. A working algorithm for automatically translating XACML policies into corresponding OWL axioms has been defined, together with a complete access decision procedure. Although performance issues have been encountered, promising solutions have been elaborated in order to make the framework suitable to be applied to real environments.
Issue Date: 2015-10-21
Genre: thesis
Rights Information: Copyright 2015 Filippo Pellegrini
Date Available in INDIGO: 2017-10-22
Date Deposited: 2015-08

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