Analysis of Computer Network Security Technology and Preventive Measures under the Information Environment

This paper first summarizes what informatization is, and then analyzes the service of informatization computer network security management system in detail. Then, it analyzes the specific application and problems of informatization in computer network security management system, including hash function to protect network information transmission security, symmetric encryption strategy to protect computer network information security and establishment of computer network security protection system in information environment. Finally, it expounds the relevant countermeasures to solve the network security threats under the information environment, including comprehensively strengthening the computer network security management under the information environment, establishing and perfecting the computer network security protection system under the information environment, and strengthening the research on the black and evil prevention mechanism under the information environment to protect the computer network information security. In this paper, under the background of informationization, people pay more attention to the security technology of computer network and related preventive measures.