Research on database storage and network transmission security system of computer big data platform

The purpose of this paper is to deeply discuss and study the construction and optimization of database storage and network transmission security protection system of computer big data platform. In the current information society, the big data platform plays a vital role, and the security of its database storage and data protection during network transmission have become the key issues to be solved urgently in the field of information security. Firstly, this paper analyzes the challenges faced by database storage in big data environment, including efficient storage of massive data, access control, data integrity and consistency assurance, and potential security threats. To solve these problems, we study and design a big data storage model based on distributed architecture, which strengthens the safe storage of data in the static state through encryption algorithm and dynamic key management technology, and adopts redundancy backup and failure recovery mechanism to ensure high data availability. Secondly, aiming at the security requirements of big data in the process of network transmission, we study the efficient network transmission protocol and secure encryption strategy. A data transmission security scheme based on SSL/TLS protocol is proposed, which combines identity authentication, data integrity check and streaming encryption technology to effectively prevent data from being stolen, tampered with or lost during transmission. Finally, this paper also builds a comprehensive computer big data platform database storage and network transmission security system, which integrates the above storage security technology and transmission security measures, and can realize the efficient and safe storage and transmission of big data in a complex network environment. The validity and practicability of this study are proved by practical application cases, which is of great significance for promoting the development of big data security protection technology in China. Through the above research, we will provide strong security technical support for the construction and operation of big data platforms, help industries make better use of big data resources, and effectively protect the information security of the country and individuals.