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Center for Education and Research in Information Assurance and Security

Generalized Temporal Role-Based Access Control Model

Arif Ghafoor - Electrical and Computer Engineering, Purdue University

Mar 06, 2002

Abstract

In this talk, we present a generalized temporal role-based access control model that deals with temporal aspects of roles and trigger-based role enabling requirements. The model allows specification of periodic as well as duration constraints on roles, user-role assignments and role-permission assignments. In this model, temporal constraints on role enabling and role activation can be independently specified. A user-activated role can be restricted to various activation constraints such as cardinality constraint, maximum active duration constraint within a specified interval, etc. The model can be applied to several real-world applications including workflow systems.

About the Speaker

Arif Ghafoor is a Professor in the School of Electrical and Computer Engineering, at Purdue University, West Lafayette, IN, and is the Director of Distributed Multimedia Systems Laboratory. He has been actively engaged in research areas related to database security, parallel and distributed computing, and multimedia information systems. He has published numerous technical papers in leading journals and conferences. Dr. Ghafoor has served on the editorial boards of various journals including ACM/Springer Multimedia Systems Journal, the Journal of Parallel and Distributed Databases, and the International Journal on Computer Networks. He has served as a Guest/Co-Guest Editor for various special issues of numerous journals including ACM/Springer Multimedia Systems Journal, the Journal of Parallel and Distributed Computing, International Journal on Multimedia Tools and Applications, IEEE Journal on the Selected Areas in Communications and IEEE Transactions on Knowledge and Data Engineering. He has recently co-edited a book entitled \"Multimedia Document Systems in Perspectives\" and has co-authored a book entitled \"Semantic Models for Multimedia Database Searching and Browsing\" (Kluwer Academic Publishers, 2000)
Dr. Ghafoor is a Fellow of the IEEE. He has received the IEEE Computer Society 2000 Technical Achievement Award.



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