基于熵理论的无线网络安全的模糊风险评估  

FUZZY RISK ASSESSMENT OF THE WIRELESS NETWORK SECURITY BASED ON ENTROPY THEORY

作　　者：赵冬梅[1] 苏红顺[2] 吴敬[3] 马建峰[1] 

机构地区：[1]西安电子科技大学计算机学院,陕西西安710071 [2]河北师范大学田家炳数学与信息科学学院,河北石家庄050016 [3]河北师范大学信息技术学院,河北石家庄050016

出　　处：《计算机应用与软件》2006年第8期24-26,42,共4页Computer Applications and Software

基　　金：国家自然科学基金(90204012);河北省科学发展计划(042135127);河北省教育厅科技计划项目(2004446)。

摘　　要：讨论了对无线网络安全的风险评估方法,首先对影响网络安全的风险因素进行识别,然后采用模糊逻辑法相结合的方法对无线网络系统进行风险评估。根据无线网络的实际情况,每个风险因素从风险概率、风险影响和不可控制性三方面评判。通过应用熵权系数法,客观地计算出每个风险因素的权重,从而计算出整个无线网络系统的风险等级,以对整个系统进行评估。通过实例说明该方法能很方便地应用于无线网络安全的风险评估,实际结果符合实际。A risk assessment method is introduced to the estimation of the wireless network security. Firstly,risk factors of the wireless network system are recognized. Fuzzy logical method is applied to the risk assessment,and fuzzy logical method is improved based on the actual condition of the risk assessment of wireless network, Each risk factor is estimated in the aspect of the probability, the impact severity and uncontrollability. For the determination of the weight of the risk factor,a method of entropy-weight coefficient is applied to objective computation, and subjective judgment is overcomed. The study of the case shows that the method can be easily used to the risk assessment of the information security and its results conform to the actual situation.

关 键 词：无线网络 风险评估 模糊逻辑法 熵权系数 

分 类 号：F713.36[经济管理—产业经济] X592[环境科学与工程—环境工程]