Authors:
Hao Wang
;
Heqing Guo
and
Manshan Lin
Affiliation:
South China University of Tech., China
Keyword(s):
Electronic payment, Fairness, Abuse-freeness, Transparent TTP, RSA signature.
Related
Ontology
Subjects/Areas/Topics:
Communication and Software Infrastructure
;
e-Business
;
e-Commerce Protocols and Micropayment Schemes
;
Electronic Payment Systems and Exchange Protocols
;
Enterprise Information Systems
;
Global Communication Information Systems and Services
;
Telecommunications
Abstract:
Fair payment protocol is designed to guarantee fairness in electronic purchasing, that is, no party can falsely deny involvement in the transaction or having sent/received the specific items/payment. In this paper we first present an efficient fair payment protocol providing invisibility of TTP, timeliness, and standard RSA signatures as the final non-repudiation evidences. Then we present a second payment protocol which is the first one to provide abuse-freeness. Our protocols can be easily integrated into the existing electronic payment systems.