Model checking security policy model using both UML static and dynamic diagrams

  • Authors:

  • Liang Cheng;Yang Zhang

  • Affiliations:

  • Institute of Software, Chinese Academy of Sciences, Beijing, China;Institute of Software, Chinese Academy of Sciences, Beijing, China

  • Venue:
  • Proceedings of the 4th international conference on Security of information and networks
  • Year:
  • 2011

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Abstract

An operating system relies heavily on its security model to defend against malicious attacks. It has been one of the hottest research domains for decades to validate security models' correctness by formal methods during the development of security operating systems. However, current studies on the formal verification of security models are sometimes too sophisticated for the developers of operating systems, who are usually not experts in mathematical reasoning and proving. So representing a security model in UML becomes a compromise choice for the developers' verification work during system developing. In this paper, we propose a new method to verify the security policy model against the security goals using model checker SPIN and UML modeling language. Given a security policy model and the security property to be validated, our approach leverages UML class diagrams and statechart diagrams to specify its state model and its state transitions respectively. Then we translate these UML diagrams into the input language of SPIN automatically, as well as the security property. The conformance between the security goal and security model can finally be analyzed by SPIN. We proved the effectiveness of our approach by checking the violation of confidentiality of the DBLP model.