The Research Of Secure Electronic Payment Based On PKI

In recent years, with the flourishing development of the computer network,e-commerce has already become a kind of important economic mode and ideagradually. The electronic payment obtained people's widespread attention as aimportant method and the foundation of the development of electronic commerce. Theelectronic payment secure question is a concerned focus that every participant ofe-commerce must swear.This article first launches the discussion from the saluting of electronic paymentsecure question, elaborated about the essential technology such as data encryptiontechnology, digital signature technology, digital envelope and so on. Analyzed andcompared the existed payment agreement such as SSL and SET. Proposedestablishing a secure electronic payment model based on the PKI. Introduced aboutthe PKI system technology, the skeleton, the service, the CA trust model and so on.Each stage analysis all aimed at the characteristic of secure electronic payment topropose the PKI system construction should consider question.The design of security electron payment model based on PKI, firstly designed thesystem structure, and produced the system structure drawing. Secondly analyzedelectronic payment transaction flows, and produced each transaction stage flow chart.Thirdly analyzed the Request/Reply (Req/Res) news on each stage of transactionprocess, mainly discussed about the quite essential payment transaction news:initialization for purchase Request/Reply (PInitReq/PInitRes), payment authorizationrequest/Reply (Preq/Pres), invites the funds Request/Reply (CapReq/CapRes),designed the process of news production, transmission and confirmation, as well asthe data packet which every news contains, and detail explained the data packetinvolves noun. Finally, designed the flows of the software of every electronic paymenparticipant, and drawn the transaction information flow charts.