The Design And Research Of Digital Certificate System

In the recent years, Internet has been infiltrated into human beings' lives because of its convenience and inexpensiveness, and has become an important method of communication. Not only have all these brought convenience that has been never seen before to human beings, but also have brought new challenges, that is to say, Internet requires more security on information.Under the situation, network security has been more and more important based on avoiding information on network being attacked. We have considered that network security should be more and more critical.First, this article introduces its research background and some concepts concerned with cipher. And then classifies the encrypt algorithms, emphasizes on several algorithms and their theories in common use. Put forward the concept of digital signature based on the encrypt algorithms. Introduce certificate authority in details. At last, design a digital certificate system.