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The Research of Computer Networks Topological Vulnerability Analysis and Evaluation Techniques

Author: WangNingNing
Tutor: HuShaoHai
School: Beijing Jiaotong University
Course: Signal and Information Processing
Keywords: Computer network Node importance Topology potential Network Attack Graph Vulnerability
CLC: TP393.02
Type: Master's thesis
Year: 2011
Downloads: 180
Quote: 2
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Abstract


Network throughout every corner of the world , at great speed , to the various areas of political, economic , social and cultural infiltration . Followed by the issue of network security is increasingly prominent , the root causes of network security in its vulnerability . This article is the computer network vulnerability . Node importance evaluation methods are mostly based on the removed node , node group contraction , the importance of network nodes is determined by comparing the changes in network performance , and this will cause damage to the changes in the network topology or network topology . Insufficient for the above algorithm , this paper presents the importance of assessment algorithm based on improved topology potential of node . The algorithm from the level of the topology , focusing on the dependence between the node and the control node of the network resources , importance of finer reflect network node . The proposed algorithm is simple network and ARPA network node importance evaluation of computer simulation and experimental results show that the algorithm has a lower complexity , high precision , and to maintain the integrity of the network topology . Network Attack Graph able to describe the attack path between the termination of the state of the attacks were initiated by the initial state of the successful attack . In view of its good characteristics , this study is based on privilege escalation attack graphs automatically generated . Complete attack the establishment of the prototype and the attack path reasoning modeling , the use of this tool in Visual Prolog and Graphviz attack graph visualization . Network vulnerability analysis and assessment on the basis of the first two parts of the content . The system consists of information collection module , information collate storage module , attack graph automatically generated modules, attack graph drawing and visualization module , composed of five parts of the the topology vulnerability assessment module . Finally the attack path degree of harm , the probability of success , and attack strength to quantify the vulnerability of the network .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > Computer network architecture and design
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