无强迫的最优合同签署方案  

Optimistic Contract Signing Scheme Without Coercion

作　　者：陈晓峰[1] 王继林[2] 王育民[1] 

机构地区：[1]西安电子科技大学ISN国家重点实验室,陕西西安710071 [2]浙江财经学院信息学院,浙江杭州310012

出　　处：《电子学报》2004年第3期404-407,共4页Acta Electronica Sinica

基　　金：973国家重大项目 (No.G1 9990 358 0 4 )

摘　　要：合同签署是一项重要而频繁的商务活动 .现有的合同签署方案都没有解决“强迫签署”的问题 :B强迫A签署一项A不愿签署的合同 .本文首次引入了“强迫签署”的概念 ,然后利用XTR公钥密码体制中共轭元素的性质 ,提出了一种无强迫的最优合同签署方案 .在可信赖第三方的帮助下 ,A可以提供相应的证据来废除所签署的合同 。Contract signing is a fundamental and frequent service in electronic commerce. All present contract-signing schemes cannot solve the crime of coercive signing: B forces A to sign a contract that he would not like to sign. The concept of coercive signing is firstly introduced and an optimistic contract-signing scheme without coercion is proposed by using the properties of conjugate elements in XTR system. With the help of the trusted third party, A can offer some evidence to abort the contract, so it ensures the fairness of the system furthest.

关 键 词：XTR公钥密码体制 最优合同签署 公平交换 强迫签署 通信安全 

分 类 号：TN918[电子电信—通信与信息系统]