On flexible modeling of history-based access control policies for XML documents

Authors:
Patrick Röder;Omid Tafreschi;Claudia Eckert
Affiliations:
Technische Universität Darmstadt, Department of Computer Science;Technische Universität Darmstadt, Department of Computer Science;Technische Universität Darmstadt, Department of Computer Science
Venue:
KES'07/WIRN'07 Proceedings of the 11th international conference, KES 2007 and XVII Italian workshop on neural networks conference on Knowledge-based intelligent information and engineering systems: Part III
Year:
2007

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Abstract

Many scenarios require models for access control which consider former accesses to permit or deny access. One such model is the Chinese Wall model (CWM) which was designed to prevent the misuse of insider knowledge in the consulting business. In this paper, we show that our model for history-based access control provides a flexible and expressive method to define access depending on histories, which contain information about former accesses. We demonstrate this by modeling the policies of the CWM in a way that avoids the unnecessary restrictions of the original CWM.