Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (26): 88-89.DOI: 10.3778/j.issn.1002-8331.2008.26.027

• 网络、通信、安全 • Previous Articles     Next Articles

Maintenance cycle and expenses cost of information system security

REN Wei-feng1,FANG Yong1,WU Shao-hua1,XI Mao-jun1,WU Peng2   

  1. 1.College of Electronics and Information Engineering,Sichuan University,Chengdu 610064,China
    2.College of Computer Science,Sichuan University,Chengdu 610064,China
  • Received:2008-03-31 Revised:2008-06-12 Online:2008-09-11 Published:2008-09-11
  • Contact: REN Wei-feng

信息系统安全性的维护周期与耗费成本

任伟峰1,方 勇1,吴少华1,席茂军1,吴 朋2   

  1. 1.四川大学 电子信息学院,成都 610064
    2.四川大学 计算机学院,成都 610064
  • 通讯作者: 任伟峰

Abstract: This issue builds a Markov model of security probability’s decreasing trend,and describes and analyzes the incremental cost function,at last,deduces the quantitative relation between expenses cost and maintenance cycle.It is concluded that the most appropriate maintenance cycle for network information system from the quantitative relationship and the cycle reduce the expenses cost to a minimum.

Key words: security probability, Markov model, quantitative relationship, maintenance cycle, expenses cost

摘要: 提出信息系统安全性概率降低趋势的马尔柯夫模型,并对随安全性概率降低的耗费增量函数进行了描述和分析,综合得出了维护成本与维护周期的定量关系,进而推导出系统检测维护的最佳周期。

关键词: 安全性概率, 马尔柯夫模型, 定量关系, 维护周期, 耗费成本