PKI-Based Identity Authentication And Data Encryption Research

As the development of computer science, network and information technology have already seep through every domains of society. So the problem of how to guarantee networking and information safety has become current hot investigation. Public-key infrastructure is one of the most effective ways to solve the problems of information safety under large open-network environment.The Security Supporting Platform is built on the basis of Public-key infrastructure, and resolve identity authentication, access control, information protection and other issues under the network environment by application of digital certificates. This paper first introduced the basic knowledge of cryptography, as well as the theory and system for PKI, and introduced several common PKI Trust Models in detail. This Paper mainly research on the two major factor of this platform: authentication and encryption.Finally, the author summarizes the shortages of the two modules and points out the future direction of them.