The Research Of Digital Signature Technology And Application In E-Government

In the information security field, Digital Signature can be applied to E-business, E-government and electron data exchange. Itbecomes the research focus in every field. Digital Signature has been studied for many years and much scheme has been suggested, but the scheme has certain distance with actual application. As to all kinds of needs in practice, the current digital signature scheme cann't satisfy it. Especially on some peculiar occasion, such as E-government, the pertinency study is still blanky, which has affected the progress rate of informatization construction greatly. In addition, the current digital signature scheme is worse in practicability. Many problems is existent at large, such as scheme complex, efficiency low and spending great. How to predigest operation is starve for solving in digital signature research.The thesis sets forth the basic theory at first, dicussing the digital signature technology, studying and analyzing the algorithm; Then according to the security demand of document transmission in E-government in China, it choosed practical algrithm and put foward some new digital signature schemes and future research direction. According to the deficiency of the traditional digital signature, the idea combining XML with digital signature technology has been put forward. It can make full use of XML and digital signature technology, which can guarantee the information integrality, authenticity and undeniablity, also enhance the expansibility and interoperation of the data, meanwhile, it implemented mulriple signature and part signature. At last, a syetem of digital signature is carried out based on .net technology and run well in the system of network office.