Research and implementation of security mechanism in electronic procurement system
网络采购系统中安全机制的研究与实现

This paper intended to solve the security problem of electronic procurement system. A model of security mechanism was put forward with the help of comprehensive application of the authentication technique combined with digital certificate and ASP.Net's forms authentication, and of the data encryption technique and the digital signature technique. At the same time, concerning the problems of implementation of encryption and digital signature in B/S mode, this paper developed the electronic contract encryption and digital signature smart client program, and prepared the technical ground for the construction of secure, practical, and big electronic procurement system.