Application Research On Secure Electronic Payment Based On SPKI

Currently, the Internet and the World Wide Web on-line business is booming, with traffic advertising and content growing at sustained exponential rates. However, the full potential of on-line commerce has not been possible to realize due to the lack of convenient and secure electronic payment methods. Although it became clear very early that it is vital for payments to be safe and efficient, and to avoid requiring complicated user intervention, it is still the case that the Internet payment method of choice today is that of traditional credit cards. There are two technologies designed to address the security issues associated with conducting electronic transactions via the Internet - Secure Sockets Layer (SSL) and Secure Electronic Transactions (SET). Despite their wide spread use and market penetration, these have a number of significant limitations and shortcomings, including lack of security, lack of anonymity, inability to reach all audiences due to credit requirements, large overhead with respect to payments, and the related inefficiency in processing small payment amounts. That is say, Both SSL and SET deal with the credit card transactions which are typically used for larger purchase price items, with fundamentally different approaches. These limitations (some of which are present in the real world) prompted the design of alternative electronic payment systems very early in the Internet age - even before the conception of the World Wide Web. Such designs promised the security, anonymity, efficiency, and universal appeal of cash transactions, but in an electronic form. So issues the other prominent payment method of conducting electronic transactions on the Internet , which is named as digital cash. Digital cash systems are suited for small transactions, often called "micropayments," where the cost overhead of a credit card transaction is too high to justify. The other feature of digital cash transactions is that they provide no audit trail for the transaction, assuring anonymity for the consumer.This paper examines SPKI/SDSI, a security infrastructure based on public-keys, is designed to facilitate the development of scalable, secure, distributed computing systems. It provides fine grained access control, using a local name space hierarchy, and a simple, flexible, trust policy model; these features allow for the ability to create groups and delegate authorizations. Finally, It is proposed that an SPKI certificate based payment system that offered amicropayment solution through using e-cash associated with credit cards. It succeeds to the part of SET payment system. An improved bound for RSA penetrate the payment process of new payment system, and it makes this payment system anonymous and traceable. SPKI certificate building the certificate management infrastructure provides this payment system's features of scalable, secure, simple, avoiding the problems inherent in credit card transactions.