北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2002, Vol. 25 ›› Issue (2): 28-32.

• 学术论文 • 上一篇    下一篇

一个实用的公平电子合同协议

李志江,李明柱,杨义先,胡正名   

  1. 北京邮电大学信息工程学院, 北京 100876
  • 收稿日期:2001-06-11 出版日期:2002-03-10
  • 作者简介: 李志江(1971-),男,博士研究生
  • 基金资助:
    国家重点基础研究发展规划资助项目(G1999035805); 国家杰出青年基金资助项目(69425001); 国家自然科学基金资助项目(69882002,60073049)

A Practical Protocol for Electronic Contract

LI Zhi-jiang, LI Ming-zhu, YANG Yi-xian, HU Zheng-ming   

  1. Information Engineering School, Beijing University of Posts and Telecommunications, Beijing 100876, China)
  • Received:2001-06-11 Online:2002-03-10
  • Supported by:
     

摘要: 在充分考虑了公平电子合同协议两个特性即合同双方地位的平等性与有效合同证据的自主性的基础上制定了一个新的公平电子合同协议,并对协议的公平性进行了系统分析。该协议只有在出现网络故障或有人作弊的情况下才需要可信第三方参与。当合同双方诚实信用地按照协议规定去做时,每一方只需要从对方下载两条信息即可成功签订合同。

关键词: 电子合同, 公平交换, 数字签名

Abstract: Two properties of electronic contract protocol are pointed out, which are the both sides' equal position and the freedom of valid electronic contract evidence. Based on the two properties, a new practical electronic contract protocol is proposed, which fairness is systematically analyzed. Thenew protocol needs the trusted third party only if the communication channel isdamaged or someone is not honest. When both sides play honestly, one side onlyneeds to unload two messages to successfully finish the protocol.

Key words: electronic contract, fair exchange, digital signature

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