The Electric Seal System Design And Implement Based On Digital Signature

This paper based on these theories: Network Security, Information System Design, designs and implements an Electric Seal System that can be used in different applications. The Electric Seal System can be used separately or integrate with the other Information Systems by providing application programming interface. In this paper, we compare the existing systems, then summarize three key features: simple, security, extendable, then discuss the key technology in Electric Seal System, based on some solutions. At last, we give an implement of Electric Seal System based on Word. The Electric Seal System is composed by two parts: USB-Key and the software, and the software are also composed of Server and Client, also provide the necessary application programming interface. The results of this paper can be used in Electric Bank System, Electric Tax System etc.In the finality, the problems requiring further studies are discussed.