Research On The Model Of Integrated CA System Based On PKI Technology

With the development and application of information and network technology, the information of electric power has becoming very popular. Because of many reason, the security of the electric power's information is facing threats. So it is necessary to apply some security technology to ensure the trade against danger. Digital certificate can solve this problem, it works through all part of the data exchange like passport. In order to settle the information security problem on electric power, the article uses the PKI technology to achieve the digital certification authority, at the same time uses the open source library openssl to design the system, build up a certification authority. First the key and the digital certification of Public Key Infrastructure is introduced in brief, recommend the three popular arithmetic in modern cryptology: symmetry key arithmetic, non-symmetry key arithmetic and Hash arithmetic. Secondly on the base of cryptology, the article particularly describes the content of the Public Key Infrastructure. Through the problem analysis, the article constructs a PKI module and design the content based on needs. Through the discussion of the two popular crypt libraries, we use the openssl to integrate the system, and give a scheme of certification authority. The system offer such service as identity authentication, visit control, encrypt data transmission and security administration, reinforces the information security of electric power information system. At last the article describes the future of the PKI technology. openssl is a powerful solution for information security, and the PKI technology is absolutely necessarily to the electric power's information security technology, also in development and mature. As a result, the research work in this thesis has both theoretical significance and practical perspective.