Based Secure Terminal Network Level Protection Mechanisms

As the development of computer communication technology, The network has been penetrated into the people daily life. However, while we are enjoying the happiness and the convenience which is brought by the network, we are also worrying about the Security problem. The present safe solution is based on the concept of security platform, and all the protective measures are against the outside attack. If the security platform has been broken through, it becomes unsafe. So the concept of "Information Security Rank Protection" has been stated out by researchers.This paper is a part of the National 863 Project—"A Safe Terminal Technology Of Windows Based On Dual-Core And Dual-OS". Based on this safe terminal, we design a mechanism of "Network Information Security Rank Protection". It contains six modules which are "Register Authentication","Key Management","Multistage Access Control"," System Administration","Audit",and "Security Information Disposition and Memory". The manager can fulfill the different protection rank standard by combining the modules. This paper also discusses the multi-pattern matching and the cryptology, and improves the Wu-manber algorithm.Proved by the experiment, all the algorithms and the modules can work stably on this safe terminal, and finally has achieved the anticipated effect.