Title :
A Novel Micropayment Scheme with Complete Anonymity
Author :
Zhao, Xin ; Lv, Yuqin ; He, Wenxin
Author_Institution :
Sch. of Electron. Eng., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
The customerpsilas privacy may be exposed in most existing micropayment schemes. To protect the privacy of a customerpsilas identity, according to the definitions of anonymity given in this paper, a novel micropayment scheme (called xPay) with security, efficiency and complete anonymity is proposed. The scheme, based on hash chain, introduces both the debit-based payment mode and the pseudonym mechanism using prepaid cards, with the purpose of complete anonymity. In addition, in order to control the operation cost, a lower bound of the requesting coin quantity during one exchange, redemption or transfer procedure is specially set, and this setting is employed in the xPay scheme.
Keywords :
cryptography; data privacy; electronic money; complete anonymity; customer privacy protection; data security; debit-based micropayment scheme; hash chain; operation cost control; prepaid card; pseudonym mechanism; redemption procedure; transfer procedure; xPay scheme; Authentication; Costs; Cryptography; Electronic commerce; Helium; Information security; Internet; Privacy; Protection; Usability; anonymity; hash chain; micropayment; prepaid card; pseudonym;
Conference_Titel :
Information Assurance and Security, 2009. IAS '09. Fifth International Conference on
Conference_Location :
Xian
Print_ISBN :
978-0-7695-3744-3
DOI :
10.1109/IAS.2009.314
