网络安全性和脆弱性检查技术研究

发布时间：2018-02-11 16:50

本文关键词： 复杂网络安全性脆弱性级联崩溃　出处：《北京邮电大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着互联网的飞速发展和社会信息化的不断广泛,网络已经成为人们生活中必不可少的因素,我们每天的衣食住行都与网络息息相关。网络的安全与否直接关系着人们的隐私、财产等是否安全,甚至关系到国家、社会的公共安全等问题。因此,不断深入研究网络安全性和脆弱性是非常有必要的。本论文以基于复杂网络的系统隐患分析和复杂网络隐患分析仿真为技术背景,设计并实现了网络安全性和脆弱性检查系统,该系统可以对网络拓扑图进行管理,并分别对网络拓扑的节点和链路进行脆弱性分析和级联崩溃仿真,并生成相应的安全分析报告,为网络维护人员提供安全指导和建议。最后本论文以第二代中国教育和科研计算机网CERNET2作为示例网络,对网络安全性和脆弱性检查系统进行了应用测试,验证了系统的科学性和可用性。本文的主要研究工作如下： 1、调研网络安全和脆弱性分析的研究现状,指出目前主要的网络脆弱性分析方法,并总结了现有研究方法的不足,研究了基于拓扑图的网络脆弱性分析方法。 2、对复杂网络的系统隐患分析和仿真技术进行研究,介绍了复杂网络的定义和相关概念,宏观拓扑结构特征,网络拓扑中节点和链路的脆弱性分析方法以及级联崩溃仿真方法,并介绍了NS2仿真工具。 3、设计并实现了网络安全性和脆弱性检查系统,给出了该系统的总体设计和详细设计,并给出了系统的具体实现流程。 4、通过具体的网络拓扑实例,对网络安全性和脆弱性检查系统进行了应用测试。
[Abstract]:With the rapid development of the Internet and the continuous wide spread of social information, the network has become an essential factor in people's lives. Our daily food, clothing, housing and transportation are closely related to the network. The security of the network directly relates to people's privacy. Whether the property is safe or not is even related to the public safety of the country and society. Therefore, it is necessary to study the network security and vulnerability in depth. In this paper, based on the technical background of system hidden trouble analysis and complex network hidden trouble analysis simulation based on complex network, a network security and vulnerability checking system is designed and implemented. The system can manage the network topology. The vulnerability analysis and cascade crash simulation of the nodes and links of the network topology are carried out respectively, and the corresponding security analysis reports are generated. Finally, the second generation of China Education and Scientific Research computer Network (CERNET2) is used as an example network to test the network security and vulnerability inspection system. The scientific nature and availability of the system are verified. The main work of this paper is as follows:. 1. Investigate the current situation of network security and vulnerability analysis, point out the main methods of network vulnerability analysis, summarize the shortcomings of existing research methods, and study the network vulnerability analysis method based on topology graph. 2. The system hidden trouble analysis and simulation technology of complex network are studied. The definition and related concepts of complex network, the characteristics of macroscopic topology structure, the vulnerability analysis method of nodes and links in network topology and the method of cascading crash simulation are introduced. The NS2 simulation tool is also introduced. 3. The network security and vulnerability checking system is designed and implemented, the overall design and detailed design of the system are given, and the concrete realization flow of the system is given. 4. The network security and vulnerability checking system is tested by a network topology example.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.08

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