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Modality conflict detection model with authorization propagation in policy evaluation

Author(s)
TEO POH KUANG Department of Computer Science, Faculty of Computer Science and Information Technology Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
HAMIDAH IBRAHIM Department of Computer Science, Faculty of Computer Science and Information Technology Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
FATIMAH SIDI Department of Computer Science, Faculty of Computer Science and Information Technology Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
NUR IZURA UDZIR Department of Computer Science, Faculty of Computer Science and Information Technology Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
Abstract
Modality conflict is one of the main issues in policy evaluation. Existing modality conflict detection approaches do not consider complex condition attributes such as spatial and temporal constraints. In this paper, a modality conflict detection model is proposed to identify the applicable policies during policy evaluation, which supports an authorization propagation rule to investigate the class-subclass relationships of a subject, resource, action, and location of a request and a policy. We have evaluated the effectiveness of our proposed modality conflict detection model on real XACML policies for university, conference management, and health-care domain. Overall, our solution achieved higher percentage of P, R, and F in retrieving the applicable policies and in detecting modality conflict as compared to the previous work.
Publication Details
Page(s) 3472-3485
DOI DOI not available
Published Journal: Journal of Theoretical and Applied Information Technology, Volume: 98, Issue: 17, Year: 2020

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Keywords
Modality Conflict, Policy Evaluation, Authorization Propagation, Spatial and Temporal Constraints, Distributed Environment
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