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2004 IEEE International Conference on e-Technology, e-Commerce and e-Service (EEE'04)   pp. 139-145
A New Fair Micropayment System Based on Hash Chain
Yang Zongkai, E.I. & HuaZhong University of Science and Technology
Lang Weimin, E.I. & HuaZhong University of Science and Technology
Tan Yunmeng, E.I. & HuaZhong University of Science and Technology

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DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/EEE.2004.1287300
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Abstract
Micropayment systems in existence usually do not provide fairness, which means that either the customer or the merchant, or both, can cheat each other and gain a financial advantage by misbehaving in the protocols. This paper proposes a new fair micropayment system based on hash chain, which is an off-line, prepaid system and supports divisibility of digital coins in a simpler way. Moreover, in our system, a hash chain can be used to have transactions with different merchants. Compared with other micropayment schemes, e.g. PayWord, no public-key operation is required, which improves the efficiency of our system. In addition, restricted anonymous is provided in our system.
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Citation:  Yang Zongkai, Lang Weimin, Tan Yunmeng, "A New Fair Micropayment System Based on Hash Chain," eee, pp. 139-145,  2004 IEEE International Conference on e-Technology, e-Commerce and e-Service (EEE'04),  2004