Design And Implementation Of Trusted Network Connection System Based On TCA

The rapid development of the Internet has brought great convenience to people's work and life.However,insecure Internet connections have brought great security risks to people.Network malicious behaviors such as phishing websites,hacking,and Trojan horses pose great risks to the security of users' funds and privacy.How to secure network security connections has become an important research topic for network security.In order to solve the security problem of network connection,Trusted Computing proposes a trusted network connection.At present,the trusted network connection technology at home and abroad is mainly divided into TNC and TCA,and TCA is based on tri-element peer authentication,which is more secure than TNC.However,TCA can not guarantee the security of the network connection and can not deal with the threat of real-time network security.Therefore,it is necessary to adopt the behavior based analysis technology to realize the dynamic protection of network security by the analysis of behavior.Based on the above analysis,a trusted network connection system based on TCA is proposed,which extends the network behavior analysis layer on the basis of the TCA architecture,uses Bayesian algorithm to classify network behavior,identifies the network abnormal behavior,combines the authentication process with the original TCA architecture,and realizes a higher level of network security connection.Then.The main contents are as follows:1.Build a trusted network connection system based on TCA.By analyzing the role of network behavior in detecting network security and combining the trusted connection architecture TCA,the TCA based trusted connection architecture TCA-BA is proposed.On the basis of TCA,the network behavior analysis layer is added to realize the dynamic analysis and detection of network connection.2.A method of network behavior analysis is proposed.The network behavior data set is selected and the network behavior analysis and measurement model is constructed with Bayesian algorithm and minimum risk Bayes rule to realize the classification and identification of network behavior,and use the model to analyze and measure the network behavior.3.realize the realization of trusted network connection system based on TCA in Windows environment.Under the environment of Windows,it combines identity authentication technology,kernel development technology,WFP network packet filtering technology and application layer programming technology to implement the trusted network connection system proposed in this paper.4.Experimental verification is carried out on the system.The experimental results show that the system can effectively realize multi factor identity authentication and platform integrity identification,and can realize dynamic analysis of network behavior.The experimental results are good,and the system has a certain extension value.