Study On Digital Signature In E-Government And E-Commerce

With the development of information construction, especially the .popularization of electronic commercial and electronic government, information security becomes more and more important. The technology of digital signature becomes the research focus these days, which is the most effective way of assuring the information integrality and none-repudiation. It can be used in electronic commerce, electronic government, and electronic data Interchange and so on, and making some advanced application possible.This paper gives general analysis and introduction of the concept, model, and scheme of the digital signature. Aiming at the feature of the electronic government in China, bring forward some new model to adapt to the situation of the country. Still more, research in the concept of PKI and the function it may act in the electronic government in our country, also gives a PKI trust model to adapt to the situation of electronic government in our country, and assume the eGovernmet in the 3G surrounding. At last, do research in the Hash technology used in the digital cash, indicating that the Hash technology is an effective way to guarantee the digital cash security.