Research On The Evaluation Of Network Information Security Based On The Fuzzy Analytic Hierarchy Process

Recent year, the computer network is increasingly playing important role in politics, the economy, the military, the social life and so on each field, but because the network has the connection form multiplicity, openness,interconnection so on trait, attack affairs which aim at network system frequently occur and cause network security to become an important aspect which is not allowed to neglect in the network construction.The history of Fuzzy Mathematics is not long. Fuzzy Mathematics has been used in many fields. It owes to that Fuzzy Mathematics opens out the fuzzy essence of the relations between things. The Security of network information relates to many factors such as information transmission, information storage and information management. The character and degree of all these relationship are fuzzy. So it is reasonable and scientific to use the method of fuzzy synthesis evaluation to analyze the security of network information. This paper constructs evaluation system for network information security. Administrator finds system vulnerability in time from the evaluation system. Some defensive measures are taken to ensure the network system operating safely and stably.The main contents of this study include the followings:Chapter1. Introduction. Firstly, the paper discusses the issue of background and significance of the study. Secondly, it reviews the currently domestic and overseas situation of research. Finally, it makes major research, the research methods and overall philosophy. Chapter2. This chapter introduces related theories on the evaluation of network information security, including the concept, basic requirements, target, evaluation criteria and evaluation method of network information security.Chapter3. Construction of evaluation index system for network information security. This chapter introduces the feasibility of network information security, analyses design concept and principles of index system of evaluation and constructs of evaluation index system for network information security.Chapter4. Evaluation Model of network information security based on the fuzzy analytic hierarchy process. This chapter introduces basic steps of AHP, analyses evaluation model of network information security based on fuzzy synthesis evaluation method.Chapter5. Example analysis of index system of evaluation. This chapter analysis on construction of a unit network based on fuzzy synthesis evaluation method, and also provides some efficient methods to protect network.Chapter6. Construction of evaluation system for network information security.This chapter introduces related technology of network information security evaluation. It analysis main architecture of network information security evaluation system. It constructs evaluation system for network information security.Chapter7. Conclusion and the prospects for future research. Making a study conclusion and giving the further study in the right direction. This paper described the current situation of network security,the current situation of network evaluation and the evaluation standard of the security of network information. Including TCSEC (Trusted Computer System Evaluation Criteria),which is a standard for computer security issued by the US government; ITSEC (the Information Technology Security Evaluation Criteria),which is a standard for computer security that was issued by the Europe,CC (Common Criterion),which is a world standard Computer security; GB/T18336-2001 is classified criteria for security protection of Computer information system in China.Many qualitative and uncertain factors of network evaluation considered,this paper introduces emphatically about Fuzzy Synthesis Evaluation Modeling Method of network. The evaluation step about network information security has been described. Synthesis Evaluation Index system can be established. Set up five first level indexes, such as communication security of the network, security system, safety technical measures, physical security, and system security. Corresponding to each first level index and set up second index. This paper analyzed the setting-up principle of the system weight of the index and weight normalization treatment method. I develop a network evaluation system according to the Fuzzy Synthesis Evaluation Method of network security. According to the one-level Fuzzy Evaluation Model, Multilevel Fuzzy Synthesis Evaluation Model of network security has been provided. Combining with the instance of network, the evaluation step of network information security by seeing of evaluating model, the result of evaluation is in conformity with reality. Finally, this paper constructs evaluation system for network information security. Administrator finds system vulnerability in time from the evaluation system. Some defensive measures are taken to ensure the network system operating safely and stably.