Research And Application Of Digital Signature Technique In Electronic Government

With the rapid development and popular application of network technology, information security becomes more and more important in the construction of electronic government. And the digital signature technique is the foundation and guarantee of the information security. It can be applied to electronic government to offer some services, such as identity authentication service, authority to control service, information privacy service, datum integrality serving and undeniable service, forming a safe environment to electronic government.This thesis mainly includes five parts to discuss the application of the digital signature technique on the electronic government. At the first, we introduce the definition, principle and wide application prospect of digital signature technique. In the second part, the general digital signature algorithms in digital signature technique are analyzed and compared, and by studying the algorithm we choose the safe and practical algorithm. In the third part, after analyzing the information security of electronic government in China, for the situation of electronicgovernment in our country, we propose a PKI trust model, some application mode of digital signature, and some digital signature schemes. In the fourth part, based on the new digital signature schemes, a system of digital signature is carried out and applied in the electronic government system. It offers effective information safety assurance for electronic government system. Finally, we also give out some future research direction about the application of the digital signature technique in the electronic government according to the present developing status.