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Context-Aware Risk Attribute Access Control

Author

Listed:
  • Binyong Li

    (School of Cybersecurity, Xin Gu Industrial College, Chengdu University of Information Technology, Chengdu 610225, China
    Zhejiang Geely Holding Group, Hangzhou 310051, China
    Advanced Cryptography and System Security Key Laboratory of Sichuan Province, Chengdu 610225, China
    SUGON Industrial Control and Security Center, Chengdu 610225, China)

  • Fan Yang

    (School of Cybersecurity, Xin Gu Industrial College, Chengdu University of Information Technology, Chengdu 610225, China)

  • Shaowei Zhang

    (School of Cybersecurity, Xin Gu Industrial College, Chengdu University of Information Technology, Chengdu 610225, China)

Abstract

Traditional access control systems exhibit limitations in providing flexible authorization and fine-grained access in the face of increasingly complex and dynamic access scenarios. This paper proposes a context-aware risk access control model to address these challenges. By developing a multi-level contextual risk indicator system, the model comprehensively considers real-time contextual information associated with access requests, dynamically evaluates the risk level of these requests, and compares the outcomes with predefined risk policies to facilitate access decisions. This approach enhances the dynamism and flexibility of access control. To improve the accuracy and reliability of risk assessments, we propose a combination weighting method grounded in game theory. This method reconciles subjective biases and the limitations of objective data by integrating both subjective and objective weighting techniques, thus optimizing the determination process for risk factor weights. Furthermore, smart contracts are introduced to monitor user behavior during access sessions, thereby preventing malicious attacks and the leakage of sensitive information. Finally, the model’s performance and authorization granularity are assessed through empirical experiments. The results indicate that the model effectively addresses the requirements of dynamic and fine-grained access scenarios, improving the system’s adaptability to risk fluctuations while safeguarding sensitive information.

Suggested Citation

  • Binyong Li & Fan Yang & Shaowei Zhang, 2024. "Context-Aware Risk Attribute Access Control," Mathematics, MDPI, vol. 12(16), pages 1-22, August.
  • Handle: RePEc:gam:jmathe:v:12:y:2024:i:16:p:2541-:d:1458269
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