基于离线可信第三方的公平电子合同签署协议  

A Fair Electronic Contract Signing Protocol Based on Off-Line Trusted Third Party

作　　者：丁振国[1] 刘多峥[1] 刘美玲[2] 

机构地区：[1]西安电子科技大学计算机学院,陕西西安710071 [2]西安电子科技大学软件工程研究所,陕西西安710071

出　　处：《计算机技术与发展》2009年第6期171-174,178,共5页Computer Technology and Development

基　　金：国家863计划项目(2004AAS1Z2520-1);装备技术基础项目(2006QB1070)

摘　　要：电子合同签署是电子商务中的一个重要领域,公平电子合同签署协议是公平交换协议的一种应用模型,然而已有的公平电子合同签署协议存在各种安全缺陷。设计了一种新的基于离线可信第三方的公平电子合同签署协议,该协议能够解决已有协议的缺陷,并且提高了协议的执行效率。对协议的安全性进行了分析和证明,结果表明,本协议保证了交换活动的公平进行,从而为电子商务提供了完整的安全保障。Electronic contract signing is an important issue in electronic commerce, while fair electronic contract signing protocol is an application modell of fair exchange protocol, but there were defects in traditional fair electronic contract signing protocols. Presents a new fair electronic contract signing protocol based on the off- line trusted third party. The protocol effectively prevents all kinds of security attacks, and improves the efficiency of the implementation. The security of the newly devised scheme is also examined and proved. It is showed that fair processes of exchange activities are guaranteed in this protocol.

关 键 词：公平交换协议 电子合同签署协议 可信第三方 计算机网络安全 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]