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入网终端的可信状态对整个网络的安全具有十分重要的影响,可信计算组织TCG的可信网络连接TNC正是为解决可信接入的问题提出,已成为一个研究热点。基于TNC体系和EAP协议设计了可信网络接入机制。该机制利用接入控制协议交换量化的终端可信度、身份等信息,并根据接入策略确定是否允许终端入网。通过对接入控制协议的健壮性分析,表明该机制能有效实现终端的入网控制,从源头保障网络安全。
Trusted network access terminal status of the entire network security has a very important impact, Trusted Computing Group TCG Trusted Network Connection TNC is to solve the problem of trusted access, has become a research hotspot. Based on the TNC system and the EAP protocol, a trusted network access mechanism is designed. The mechanism uses the access control protocol to exchange quantitative information such as terminal credibility and identity, and determines whether the terminal is allowed to access the network according to the access policy. Through analyzing the robustness of the access control protocol, it shows that the mechanism can effectively control the access control of the terminal and ensure the network security from the source.