Based On Pki Technology And Secure E-government System Design

With the deep development of E-government application, the modes of government workings change largely. But E-government brings security problem along with the high efficiency. How to improve the government's working efficiency through ensuring information security is a hot question. E-government application involves some confidential data. How to ensure the authenticity and the integrality of the data is an important problem. The technique of PKI can well solve the above problem.In this paper, we expatiate the conception of E-government the first, then analyze the development actualities of current national and international E-government system: the lack of identity authentication and the encryption in the transmission of information. Then we dissertate minutely the technique of PKI .PKI can utilize the technique of public key and security services which the certificate based on X.509 provided, and found security zone which can release the key and certificate, accordingly solve the problem of identity authentication and the encryption. Then we analyze the universal model and authentication system, then analyze and discuss the advantage and disadvantage of current model and system.Lastly we design a model of secure E-government and implement elementarily a digital certificate system, which is an important part in E-government system. In this part we design minutely the necessary part of secure system and analyze the feasibility of every part which includes the construction of PKI/CA, the authentication of network layer, the identity authentication and the encryption in the transmission and digital signature of application layer, the release of authentic data/services of interface layer, the way of encryption agent to ensure the security of data storage. In the last we design and implement elementarily a digital certificate system which includes the application, the signature, the cancellation and the query of the certificate. In this paper we purpose to construct a secure E-government, to improve the working efficiency of government under the precondition of security.