【作者】 陈锐；

【导师】 梁京章；

【作者基本信息】 广西大学 ， 农业电气化与自动化， 2004， 硕士

【摘要】 随着网络技术的迅速发展和日益普及，电子政务建设和发展中的信息安全越来越显得重要。而数字签名技术是信息安全理论与技术的基础和重要保证，使其应用于电子政务中，可以提供身份认证服务、权限控制服务、信息保密服务、数据完整性服务和不可否认服务。从而，为电子政务提供了一个安全的环境。 本文主要从以下五个方面对数字签名技术在电子政务中的应用进行分析与研究：第一是对数字签名技术进行介绍，阐述其定义、原理和广阔的应用前景；第二是对数字签名技术中的常用数字签名算法进行分析和比较，通过研究选取安全实用的数字签名算法；第三是针对我国电子政务中的信息安全进行分析，提出了适合国情的电子政务的PKI信任模型，数字签名的使用模式以及一些数字签名方案；第四是以提出的数字签名方案为核心，设计一个数字签名系统，应用于电子政务系统中，为电子政务系统提供有效的信息安全保证。最后，本文根据目前的发展状况，提出了数字签名技术在电子政务中应用的进一步的研究方向。更多还原

【Abstract】 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.更多还原