DocumentCode :
2917236
Title :
An Anonymous Digital Cash and Fair Payment Protocol Utilizing Smart Card in Mobile Environments
Author :
Zhang, Ling ; Yin, Jian Ping ; Yu bin Zhan
Author_Institution :
Sch. of Comput., Nat. Univ. of Defense Technol., Changsha
fYear :
2006
fDate :
Oct. 2006
Firstpage :
335
Lastpage :
340
Abstract :
Fair mobile payment protocols ensure that both participants can engage in the exchange without the risk of suffering a disadvantage (e.g., losing their money without receiving anything for it). In general, fair payment protocols require the continuous availability of an external trusted third party (FTP), a dedicated site which is trusted by both participants. In this paper we present solutions to the fair exchange problem in mobile environments, where customers frequently disconnect from the network and thus continuous availability of the external TTP is not given. Our approach utilizes smart card on the customer´s side partly taking over the duties of the TTP. A novel digital cash protocol is also proposed. In the protocol we implement a distributed anonymity provider agent with smart card on the customer´s side. Thus accountable anonymity is guaranteed. Compared with Chaum´s and Wang´s schemes its communication cost and customer´s computation are more reduced. The proposed digital cash are proved to be unreusable, unexpandable, untraceable, and unforgeable
Keywords :
electronic money; mobile computing; protocols; smart cards; accountable anonymity; anonymous digital cash; communication cost; digital cash protocol; distributed anonymity provider agent; fair mobile payment protocols; fair payment protocol; mobile environments; smart card; Computational efficiency; Hardware; Information security; Mobile communication; Mobile computing; Network servers; Personal digital assistants; Protocols; Smart cards; Wireless networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Grid and Cooperative Computing Workshops, 2006. GCCW '06. Fifth International Conference on
Conference_Location :
Hunan
Print_ISBN :
0-7695-2695-0
Type :
conf
DOI :
10.1109/GCCW.2006.18
Filename :
4031571
Link To Document :
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