Study On Fairness And Non-Repudiation Of Electronic Payment Protocol

With the development of the electronic commerce, how to accomplish the payment securely and efficiently is becoming an essential piece of the e-commerce transactions.This paper deals with the electronic payment protocols and fair non-repudiation protocols. The main achievements of this paper are:1. The paper analyzes and compares SSL and SET from various aspects, including analysis on deficiency and the detailed suggestions for the improvement of both SSL and SET. It also includes enhancing the security of transaction record management and satisfying the atomicity of protocol. Both SSL and SET share the same payment terms as payment first while delivery of purchased items second, which may introduce the unfair problem. In this paper we propose an improvement measure to solve the problem.2. In the paper, a new securely fair non-repudiation protocol is proposed, that can support fairness and the non-repudiation of originator and non-repudiation of receipt. The proposed protocol is analyzed in detail.