关键词: ActiveX控件, 面向对象, 印章, 电子印章, Web Service

Abstract: The conventional seals play an important role in the government and enterprise. Based on the systematical research on all kinds of realization methods of electronic seal, and according to the characteristics of electronic seal and the demands of the e-government-affair work information system, this paper represents a simple, efficient and safe solution of electronic seal with detailed discussion of all kinds of design technologies in the system, such as prototype of seal, image processing. At the same time, Web Service structure of server has analyzed in details. With the application of Object-Oriented Programming (OOP) method, the system of the electronic seal based on Web Service architecture have been designed and implemented.

Key words: ActiveX, OOP, seal, electronic seal, Web Service