无线网络通信数据安全态势量化评估方法仿真  

Simulation of Quantitative Assessment Method for Data Security Situation of Wireless Network Communication

作　　者：吕国[1] 陈莲娜 肖瑞雪[1] 孙佩杰 LV Guo;CHEN Lian-na;XIAO Rui-xue;SUN Pei-jie(Hebei University of Architecture,Zhangjiakou Hebei 075000,China;Information Engineering Institute,China JiLiang University,Zhejiang Hangzhou 310018,China)

机构地区：[1]河北建筑工程学院,河北张家口075000 [2]中国计量大学信息工程学院,浙江杭州310018

出　　处：《计算机仿真》2020年第7期337-340,372,共5页Computer Simulation

基　　金：2018年河北省科学技术厅创新能力提升计划项目(184576131D)。

摘　　要：针对传统安全态势量化评估方法存在的信息单一化及局限性问题,提出一种无线网络通信数据安全态势量化评估方法。首先根据安全态势量化评估原理对不同网络模块的重要因子加权处理,并且通过计算求解出传输数据中存在威胁的可能性指数;其次采用了HMM模型来对网络安全态势的变化进行描述,根据元祖分类中每个采样周期得出观测向量,并对其安全态势检测,然后通过安全状态转移矩阵,求解得出网络中每个单独节点的安全态势,且计算出对应的权重值;最后根据基于最终权重值的威胁态势量化评估以及安全风险计算,完成网络内部威胁态势量化评估。仿真结果表明,所提出的方法可以完全适应于各种信息处理工作,并且具有计算复杂度低,评估时间短、评估精准度高的优点。In order to solve the problems about simplification and limitation of information in traditional methods,this article proposed a quantitative assessment method of data security situation in wireless network communication.Firstly,the important factors of different network modules were weighted according to the principle of quantitative assessment of security situation,and the possibility indexes of threat in transmission data were calculated.Secondly,the HMM model was used to describe the change of network security situation.According to the sampling period in the tuple classification,the observation vector was obtained,and its security situation was detected.Moreover,security situation transition matrix was used to get the security situation of each individual node in network,and the corresponding weight value was calculated.According to the quantitative evaluation of threat situation based on final weight value and the calculation of security risk,the quantitative evaluation of threat situation in network was completed.Simulation results show that the proposed method can be suitable for all kinds of information processing work,with low computational complexity,short evaluation time and high evaluation accuracy.

关 键 词：无线网络通信 安全态势 量化评估 隐马尔可夫模型 加权 转移矩阵 

分 类 号：TP391.1[自动化与计算机技术—计算机应用技术]