信息网络安全 ›› 2020, Vol. 20 ›› Issue (9): 27-31.doi: 10.3969/j.issn.1671-1122.2020.09.006

• 入选论文 • 上一篇    下一篇

基于随机Petri网的系统安全性量化分析研究

毋泽南1, 田立勤1,2(), 陈楠2   

  1. 1. 青海师范大学计算机学院,西宁 810000
    2. 华北科技学院计算机学院,北京 101601
  • 收稿日期:2020-07-16 出版日期:2020-09-10 发布日期:2020-10-15
  • 通讯作者: 田立勤 E-mail:tianliqin@ncist.edu.cn
  • 作者简介:毋泽南(1991—),男,河南,博士研究生,主要研究方向为网络实体信任评估、用户行为认证|田立勤(1970—),男,陕西,教授,博士,主要研究方向为网络安全、物联网可靠性分析|陈楠(1994—),男,安徽,硕士研究生,主要研究方向为用户行为认证
  • 基金资助:
    国家重点研发计划(2018YFC0808306);河北省重点研发计划(19270318D);河北省物联网监控工程技术研究中心项目(3142018055);青海省物联网重点实验室项目(2017-ZJ-Y21)

Research on Quantitative Analysis of System Security Based on Stochastic Petri Net

WU Zenan1, TIAN Liqin1,2(), CHEN Nan2   

  1. 1. School of Computer, Qinghai Normal University, Xining 810000, China
    2. School of Computer, North China Institute of Science and Technology, Beijing 101601, China
  • Received:2020-07-16 Online:2020-09-10 Published:2020-10-15
  • Contact: Liqin TIAN E-mail:tianliqin@ncist.edu.cn

摘要:

针对日益频发的网络攻击事件,如何准确有效地对攻击事件进行实验推断,并对网络安全相应指标进行量化分析,已成为近年来的研究热点。文章结合网络系统安全性评估需求,对网络系统安全性评估的主要指标及求解方法进行了论述。在此基础上研究了利用随机Petri网对网络系统安全性进行建模分析的方法和步骤,并结合模型的马尔可夫性给出了网络系统安全性指标的计算方法。最后,通过具体实例对模型的正确性进行验证。结果表明,利用随机Petri网对网络系统安全性进行建模分析是合理有效的,为网络系统安全性评估相关研究提供了新思路。

关键词: 网络系统安全, 随机Petri网, 马尔可夫性, 安全评估

Abstract:

In response to the increasing frequency of network attack events, how to accurately and effectively perform experimental inference on the attack events and quantitatively analyze the corresponding indicators of network security has become a research hotspot in recent years. This paper discusses the main indicators and solving methods of network system security assessment in conjunction with the needs of network system security assessment. On this basis, the methods and steps of stochastic Petri nets for modeling and analyzing network system security are studied, and the calculation method of network system security indicators is given in conjunction with the Markov property of the model. Finally, the correctness of the model is verified by specific examples. The results show that it is reasonable and effective to use stochastic Petri nets to model and analyze the network system security, which provides new idea for related research on network system security assessment.

Key words: network system security, stochastic Petri net, Markov property, security assessment

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