Journal of Systems and Software
PayWord and MicroMint: Two Simple Micropayment Schemes
Proceedings of the International Workshop on Security Protocols
An Efficient, Secure and Delegable Micro-Payment System
EEE '04 Proceedings of the 2004 IEEE International Conference on e-Technology, e-Commerce and e-Service (EEE'04)
Portals: toward an application framework for interoperability
Communications of the ACM - Voting systems
NetPay: An off-line, decentralized micro-payment system for thin-client applications
Electronic Commerce Research and Applications
The millicent protocols for electronic commerce
WOEC'95 Proceedings of the 1st conference on USENIX Workshop on Electronic Commerce - Volume 1
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Micro-payment systems have the potential to provide non-intrusive, high-volume and low-cost pay-as-you-use services for a wide variety of web-based applications. NetPay is one such micro-payment protocol. There is however not currently a way for some vendors who only want to use NetPay facilities temporarily. We propose an extension, Portal-NetPay micro-payment system where a portal or vendor acts as a purchasing portal to non-NetPay supporting vendors by redirecting page accesses to these vendors and charging the customers e-coins in the process. We describe the motivation for Portal-NetPay as well as four transactions of the Portal-NetPay protocol in detail to illustrate the approach. We then discuss future research on this protocol.