摘要： 通过分析贝叶斯网络在计算机网络安全评估中的适用性,提出了一种新的网络安全评估方法。将贝叶斯网络应用于网络安全评估,建立了不依赖于安全漏洞的安全评估模型,引入虚拟主机概念解决多层网络结构的安全评估问题。结果表明,基于贝叶斯网络的网络安全评估方法能够综合考虑网络的特性(即先验信息)和环境(样本信息),减少主观偏见和噪声影响,能够缩短网络安全评估时间,而且易于实现。

关键词: 贝叶斯网络, 虚拟主机, 网络安全, 安全评估

Abstract: Through the analysis of Bayesian net's applicability in computer network security evaluation, this paper presents a novel method to evaluate network security. It applies Bayesian net to the network security evaluation and builds a security evaluation model independent of security vulnerability. An idea of virtual host is put forward to resolve the problem of multiple-layers structure network security evaluation.The novel method takes network's characteristics and environment into account. Examples show it reduces the subjective bias and noise effect. The novel method reduces the time of network security evaluation, and it is also facile to achieve.

中图分类号: 

• TP393.08