Research On Security Architecture Model Of Intranet And Simulation

With the rapid development of computer network and communication technologies, the network plays more and more important role. Intranet is an enterprise or organization or institution internal network built using related technologies of Internet. Intranet is an application extension of Internet in enterprise or organization or institution information system. Now, many enterprise,organization and institution have built themselves Intranet . People are very satisfied to enjoy the benefits from it, but also find that the Intranet should face to high security risks, because there are many confident information and perceptive data in the Intranet. In order to protect the confidentiality of information, preserve the integrity and availability of data, it is necessary to integrate the network security technologies, and establish and effective security system based on character of Intranet.Now many people of inside and outside research on the security architecture of Intranet, but most of them have researched on it in order to settle the specific problem or to get the solution of security of Intranet in practice when they encountered the Intranet security problems, of course someone has also proposed some security model to implement in Intranet, but there is no security architecture model to pulled out to handle secure problems that the Intranet encounters more serious threat because of the Internet's opening and sharing, which can make the attacker rapid promotion in attacking Intranet for a short time.According to the peculiarity and the security requirement of Intranet and the development of secure technologies, this paper analyzes the security problems and security requirement of Intranet, and relies on the security architecture of technologies and management, and applies the ISSE (Information System Security Engineering) methodology of IATF (Information Assurance Technical Framework) to propose an effective and useful and security architecture model of Intranet network, that outstand that people and their action are important in the security in Intranet, and embody the conceptions that the technologies is the same important as the management, and the Intranet should be defended in depth and multilayer mechanism. Then, this paper designs a feasible development project. Finally, a serial of simulation experiments are made to prove that the security model is security and availability.