电子合同协议的研究越来越受到人们的重视 ,本文给出了一个多方公平电子合同协议 .这个多方公平电子合同协议需要可信第三方的参与 ,但不会形成网络瓶颈 .通过对其公平性与效率的分析 ,可知本协议在满足了公平性的同时具有较高的实用性 . The research on electronic contractual agreement is paid more and more attention by people.This paper presents a multi-party fair electronic contractual agreement, which requires the participation of trusted third parties, but does not form a network bottleneck.Through its fairness With the analysis of efficiency, we can see that this agreement has higher practicability while satisfying the fairness.