一种基于网络熵的计算机网络攻击效果定量评估方法

提出了一种基于网络信息熵的计算机网络攻击效果定量评估模型。从计算机网络受攻击前后安全特性变化的角度,提出了网络熵的概念。由选取和简化合适的网络安全性能指标体系入手,借助于层次分析法(AHP),着重分析了网络熵差的计算方法,并给出了基于网络熵的攻击效果评估系统的实现思路和相应的模型校验方法。经过初步测试和计算,结果表明该模型能够比较合理地反映实际的网络攻击效果。

A quantitative evaluation technique of attack effect of computer network based on network entropy

An attack effect evaluation model of computer network based on network entropy was proposed in this paper. The paper put forward the concept of network entropy from the point of view of the security characteristic change of computer network after it was attacked. The calculation technique of network entropy difference was analyzed in detail by analytical hierarchy process (AHP) with the beginning of the choice and simplification of proper network security index set. The implementation idea of the attack effect evaluation system based on network entropy and the corresponding model verification method were presented as well. The elementary test and calculation results show that the model can be in all reason utilized to measure the actual network attack effect.