计算机应用 ›› 2013, Vol. 33 ›› Issue (08): 2218-2221.

• 信息安全 • 上一篇    下一篇

移动环境多角色安全互斥风险的模糊评估

王建军1,2,李建平1   

  1. 1. 电子科技大学 计算机科学与工程学院,成都 610054;
    2. 湖南第一师范学院 信息科学与工程系,长沙 410002
  • 收稿日期:2013-03-11 修回日期:2013-05-07 出版日期:2013-08-01 发布日期:2013-09-11
  • 通讯作者: 王建军
  • 作者简介:王建军(1969-),男,湖南衡阳人,副教授,博士研究生,主要研究方向:网络信息安全;
    李建平(1965-),男,湖南祁阳人,教授,博士生导师,博士,主要研究方向:网络信息安全。
  • 基金资助:

    湖南省高校科技创新团队支持计划项目;湖南省教育厅科技计划项目

Fuzzy risk evaluation on multi-role security mutual exclusion in mobile environment

WANG Jianjun1,2,LI Jianjun2   

  1. 1. Department of Information Science and Technology, Hunan First Normal University, Changsha Hunan 410002, China
    2. School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu Sichuan 610054, China
  • Received:2013-03-11 Revised:2013-05-07 Online:2013-09-11 Published:2013-08-01
  • Contact: WANG Jianjun

摘要: 传统机制解决移动环境多角色安全互斥问题的效率较低,为此,提出利用多角色综合敏感度评判安全互斥程度的解决方案。系统基于角色内部安全因素模糊评判角色敏感度,再采用补偿竞争算法计算多角色综合敏感度,即对角色敏感度进行海明距离补偿,取补偿后的最大值为多角色综合敏感度,使移动环境多角色系统在安全和效率间取得平衡。最后,分析了算法的复杂度,使用实例论证了算法可以提高角色的执行效率。

关键词: 移动计算, 安全互斥, 模糊评判, 敏感度, 风险值

Abstract: Since the traditional mechanism is low in efficiency to solve the multi-role security mutex in the mobile environment, a solution was proposed to determine the degree of security mutex using the multi-role comprehensive sensitivity. The system carried out fuzzy evaluation on the sensitivity of a role based on the internal security factors of the role, then calculated the comprehensive sensitivity of multiple roles utilizing the compensation competitive algorithm, i.e. did the Hamming distance compensation to the role sensitivity, took the compensated maximum as the multi-role comprehensive sensitivity, enabling the multi-role system in the mobile environment to achieve a balance between safety and efficiency. Finally, the algorithm has been analyzed for its complexity and an example demonstrates that the algorithm can increase the execution efficiency of the roles.

Key words: mobile computing, security mutual exclusion, fuzzy evaluation, sensitivity, value-at-risk

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