Research on Computer Security Protection Technology Based on Information

With the rapid development of computer networking in all walks of life, network information security has attracted more and more attention from users. From the overall network information security to the security of a single computer and communication security has become a research focus. At present, the research on the computer's stand-alone information security has achieved initial results. It can be roughly divided into three key research areas: data integrity and security research, system integrity and credibility research, and service denial of service research. This paper proposes a design scheme of the computer's underlying input and output security subsystem based on the BIOS module. It uses information summary, identification and data encryption provided by cryptography to provide computer system integrity and legality detection, user identification and hard disk data and to protect and realize the security service to the stand-alone computer.