Title :
A new fair micropayment system based on hash chain
Author :
Zongkai, Yang ; Weimin, Lang ; Yunmeng, Tan
Author_Institution :
E.I. -Huazhong Univ. of Sci. & Technol., Wuhan, China
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. We propose a new fair micropayment system based on hash chain, which is an offline, 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. Pay Word, no public-key operation is required, which improves the efficiency of our system. In addition, restricted anonymous is provided in our system.
Keywords :
Internet; cryptography; electronic money; message authentication; transaction processing; Pay Word micropayment system; digital coin divisibility; fair micropayment system; hash chain; merchant transactions; offline prepaid system; public-key operation; restricted anonymous; Consumer electronics; Costs; Cryptography; Electronic commerce; Protection; Protocols; Public key; Spatial databases; Stock markets; Transaction databases;
Conference_Titel :
e-Technology, e-Commerce and e-Service, 2004. EEE '04. 2004 IEEE International Conference on
Print_ISBN :
0-7695-2073-1
DOI :
10.1109/EEE.2004.1287300
