Study on Protection Mechanism of Information Security in an Intranet Based on Trusted Computing

The leak of information in the intranet has been increasing more and more with each passing day, the securities of intranet information have been under severe threat. According to the demand of intranet information security and the intranet security model, this paper studies the protection mechanisms of the information security for a trusted intranet, including the establishment of trust chain, the trust protection of processes, the dynamic encryption and decryption, and the security of data storage. Based on the trusted computing theory, this paper puts forward the solutions for establishing trust chain, trust protection of process, storage security and access authentication of user terminal etc.; thus a trinity information security system for an intranet, including the computer terminals, files, and the users, has been developed. The intranet information security will be improved by the comprehensive protection system.

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