Conformance Testing of Temporal Role-Based Access Control Systems

  • Authors:
  • Masood Masood;Arif Ghafoor;Aditya Mathur

  • Affiliations:
  • Air University, Islamabad;Purdue University, West Lafayette;Purdue University, West Lafayette

  • Venue:
  • IEEE Transactions on Dependable and Secure Computing
  • Year:
  • 2010

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Abstract

We propose an approach for conformance testing of implementations required to enforce access control policies specified using the Temporal Role-Based Access Control (TRBAC) model. The proposed approach uses Timed Input-Output Automata (TIOA) to model the behavior specified by a TRBAC policy. The TIOA model is transformed to a deterministic se-FSA model that captures any temporal constraint by using two special events Set and Exp. The modified W-method and integer-programming-based approach are used to construct a conformance test suite from the transformed model. The conformance test suite so generated provides complete fault coverage with respect to the proposed fault model for TRBAC specifications.