E-Government Base On Public Key Infrastructure Technology

With the rapid development and popularization of Internet is paid more and more attention by countries, and its net security is becoming more and more important. Establishing a perfect password/signature system by using Public Key Infrastructure(PKI) can ensure security of e-business transaction and e-information transferring.Many country in the world have been studying PKI security mechanism for many years and have formed a integrate set of scheme based on the asymmetrical cryrography and digital signature technology. In this paper we will expound the theory basis,basic orgnization,function,main trust model,application,actuality and foreground of PKI security mechanism.Digital signature and digital certificate are the hard core of the whole PKI and the electronic certificate system which manages digital signature is the hard core of PKI.In this paper we present hoe to design and implement a electronic certificate system. In the design part ,we introduce the attribute,function,structure and classification. In the implementation part, we will expound how to implement every part of this system, including the technology,interface,flow chart and the source code of he key part.At last we summarize the design and implementation of this system and address the application foreground of this system and the work direction of the future.