A Web Services-based Online Payment System Designment

One kind of dynamic commercial activity——electronic commerce has arisen under the background that Internet and the tradition information technology combined. All quarters of electronic commerce participants in the commercial activity, the merchant, the customer, the logistics company, the bank or the financial organ, the credit card company or the negotiable securities company and the government and so on using the computer network to unify, will realize on thoroughly the net on-line transaction Electrification. However, because electronic commerce establishes on open, free Internet platform, its safe vulnerability has hindered the electronic commerce development.In the study of EC's security, the Secure Electronic Transaction protocol came to the world, which was designed for electronic payment. The SET protocol involved much of data and strictly limited the format of data; therefore it was very cockamamie and inflexible. However, the XML, as the basic of Web Services, is a flexible technology of data processing. It has the structured and expansible characteristics, which is suitable to conduct the complex and anomalous data. Thus this technology can help SET improve its flexibility and expansibility.The parts in EC process are so many and their systems should be different platforms, so the Web Services technology is just able to solve this problem. Therefore, the thesis studies the base, the structure and technology standard of Web Services in detail, especially about the security of Web Services. WS-Security is a kind of integrated specification about XML encryption, signature and authentication for Web Services. And XKMS is the XML key management specification. These two can provide the authentication center, encryption and signature services for SET structure.In the structure of this protocol, this thesis will provide a kind of innovative amelioration: in the EC's process, the shipment is an indispensable part, so we take consideration of adding the shipment into the part of SET structure, which is able to make the whole electronic payment process better and avoid the credit card cheat through fake commerce in some degree.Finally, Analysis of the online payment system in BtoB e-commerce of the entire process and its safety. Because of the lack of an effective Certification Center and the support of banks, some features not realized, but this part of the theory has been proved effective. Analysis of the system aims to verify the reliability and feasibility. Through the simulation, the paper's online payment system was proved a better value, that is for the development of China's BtoB e-commerce online payment system.