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Risk-Aware Role-Based Access Control

  • Liang Chen
  • Jason Crampton
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7170)

Abstract

The increasing need to share information in dynamic environments has created a requirement for risk-aware access control systems. The standard RBAC model is designed to operate in a relatively stable, closed environment and does not include any support for risk. In this paper, we explore a number of ways in which the RBAC model can be extended to incorporate notions of risk. In particular, we develop three simple risk-aware RBAC models that differ in the way in which risk is represented and accounted for in making access control decisions. We also propose a risk-aware RBAC model that combines all the features of three simple models and consider some issues related to its implementation. Compared with existing work, our models have clear authorization semantics and support richer types of access control decisions.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Liang Chen
    • 1
  • Jason Crampton
    • 1
  1. 1.Information Security Group and Department of Mathematics, Royal HollowayUniversity of LondonUK

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