Intranet Information Security And Protection System Design And Implementation,

With the rapid development of our country's information construction, the resource of information becomes the core element of enterprises. The current security products only pay attention to the attacks outside the network of enterprises. Thus they have no functions when the inner user leaks informations. It has become an important task to make up the shortcomings of firewall, furthermore, to prevent the enterprise's inner network.This thesis researches on the security prevention technologies of enterprise's inner network. Its main ideas are as follows:1. According to the prevention of inner network information, a model for the security prevention of enterprise's inner network based on multilayer prevention is proposed.2. The control of user's loading based on GINA is studied. Uses the GINA technology and digital certificate technology to authenticate the legality of host users;3. The security management of disk is studied. By Bundling the digital certificate to the disk, the legality of disk users can be verified. Using file driven technology, the legality of the disk can be verified. The reading and writing of the disk can be controlled by using WDM technology.4. The key models of the security prevention of enterprise's inner network system are realized. Using the technology of authentication, the key models are planed and realized.