The Guiyang Ca Digital Certificate System Architecture And Its Application In E-government And Research

By developing with the electronics governmental and the electronic commerce, the safety of the Internet is very important day by day. And building integrity electronics Certificate Authority system is become the key of electronics governmental and electronic commerce whether they can develop stablely or not.Take digital security certificate as core PKI (Public Key Infrastructure) technology mature more and more, the PKI technology uses the certificate management public key, through the creditable third party organization CA (Certificate Authority), the numerical information which must transmit carries on the encryption and the signature, guarantees the intelligence transmission the confidentiality, the authenticity, the integrity and undeniable, thus guarantee information safe transmission. Its application has covered the security E-mail, Virtual Private Network (VPN), on the Web interactive security, the electron data exchange, the Internet credit card transaction and so on, involves the electronic commerce, the electronic government affairs, the electronic business security and so on many domains.This article first introduced the CA authentication theory and technical and the PKI system elementary theory, has with emphasis analyzed the key technologies which the PKI encryption technology and involves, then has summarized the domestic and foreign PKI/CA authentication system survey, has analyzed the domestic CA authentication present situation, and in the CA construction exists question.In view of the Guiyang CA authentication center, this article from GYCA system demand obtaining, discussed the system construction, the module composition, the principle, the reciprocity from the application angle, has analyzed the system function realization technology. According to the Guiyang CA authentication center practical work flow, the system safety consideration as well as the practical application situation, discussed the CA authentication in the electronic government affairs practical application, studies the PKI/CA authentication technology in the electronic government affairs feasibility.At in the bonding electron government affairs practical application, this article has with emphasis analyzed the Guiyang official safety electronic mail system. From the system function characteristic, the foundation construction as well as the information security, raised using aspects and so on security, deepening using security explained deeply the PKI/CA authentication system in the system utilization, analyzed has provided the encryption function the mail safe transformation, studied the CA authentication emphatically in the electronic government affairs application.