Journal of Xidian University

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Cloud platform dynamic risk access control model

YANG Hongyu;NING Yuguang   

  1. (School of Computer Science and Technology, Civil Aviation Univ. of China, Tianjin 300300, China)
  • Received:2017-10-29 Online:2018-10-20 Published:2018-09-25

Abstract:

As the risk access control model can not match rules dynamically and the risk values are insensitive to access requests, a cloud platform dynamic risk access control model(CDRAC) is proposed. First, the attribute based access control(ABCA) is improved with the event calculus(EC), and the dynamic rule matching module is constructed in the CDRAC. Then, the dynamic risk evaluation index weight distribution sub-module is designed, and the risk assessment module with high sensitivity to access requests is constructed. Experimental results show that the CDRAC has good effectiveness and feasibility, and that it has a better real-time performance and adaptability than other existing models.

Key words: risk assessment, access control, event calculus, cloud platform