Title :
A Fair Transaction Mechanism for P2P File-Sharing Applications
Author :
Peng, Dongsheng ; Liu, Weidong ; Lin, Chuang ; Chen, Zhen
Author_Institution :
Dept. of Comput. Sci. & Technol., Tsinghua Univ., Beijing
Abstract :
In P2P file-sharing applications, distributed virtual payment mechanism is designed to encourage resource sharing among peers and thus restrain free-riding behaviors. However, it does not provide any protection on the security of the transaction process and the quality of the trading contents. We design a fair transaction mechanism for P2P file-sharing applications, in which a trusted third party is constructed and used to guarantee the atomic operation of the file-money exchange, in virtue of the property of distributed payment mechanism. The trading file is signed with the seller´s private key, which can be used as proof in case of dissension. Performance analysis indicates that the costs of fair transaction mechanism are limited in both trading session latency and overhead to the system.
Keywords :
electronic trading; file organisation; peer-to-peer computing; private key cryptography; P2P file-sharing applications; distributed virtual payment mechanism; fair transaction mechanism; resource sharing; seller private key; transaction security process; Application software; Computer science; Costs; Delay; Financial management; Mechanical factors; Peer to peer computing; Performance analysis; Protection; Resource management;
Conference_Titel :
Consumer Communications and Networking Conference, 2009. CCNC 2009. 6th IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-2308-8
Electronic_ISBN :
978-1-4244-2309-5
DOI :
10.1109/CCNC.2009.4784960
