QIAN Zhenjiang, LIU Wei, HUANG Hao. Research on Microkernel Integrity Semantics Model and Formal Verification[J]. Chinese Journal of Electronics, 2014, 23(1): 43-48.
Citation: QIAN Zhenjiang, LIU Wei, HUANG Hao. Research on Microkernel Integrity Semantics Model and Formal Verification[J]. Chinese Journal of Electronics, 2014, 23(1): 43-48.

Research on Microkernel Integrity Semantics Model and Formal Verification

Funds:  This work is supported by the National High Technology Research and Development Program of China (863 Program) (No.2011AA01A202); the National Natural Science Foundation of China (No.61021062); the "Six Talents Peak" High-Level Personnel Project of Jiangsu Province (No.2011-DZXX-035); University Natural Science Research Program of Jiangsu Province (No.12KJB520001).
  • Received Date: 2011-04-01
  • Rev Recd Date: 2012-04-01
  • Publish Date: 2014-01-05
  • Microkernel integrity is an important aspect of security for the whole microkernel system. Many of the research works on microkernel integrity focus on analysis and safeguards against the existing kernel attacks, and security enhancements for the vulnerabilities of system design and implementation aspects. The formal methods for operating system design and verification ensure the system's high level of security. The existing formalization work and research for operating system mainly focus on the code-level verification of program correctness. In this paper, we propose a formal abstraction model of microkernel in order to accurately describe the semantics of every kernel behavior, and achieve the description of the whole kernel. Based on the model we illustrate the microkernel integrity criterions and elaborate on the integrity mechanism. Meanwhile, we formally verify the completeness and consistency between the mechanism and the definition of the microkernel integrity. We use the self-implemented operating system VTOS (Verified trusted operating system) as an example to illustrate the design method for the microkernel integrity.
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