不可否认协议的公平性差异  

The Difference of Fairness among Non-repudiation Protocols

作　　者：沈炜[1] 陈纯[1] 

机构地区：[1]浙江大学计算机系,杭州310027

出　　处：《计算机工程与应用》2003年第3期169-171,共3页Computer Engineering and Applications

摘　　要：不可否认协议目的是防止参与方对其行为的否认。不可否认协议必须保证参与方之间的公平,但不同协议之间的公平性差异是现实存在的,表现在达到公平的强弱程度上。该文就公平层次问题进行讨论,在扩展了已有的公平定义的基础上,结合相应的实例将不可否认协议分成三个不同的层次;同时,也给出了同步与异步协议的公平性差异的若干结论。Non-repudiation protocols aim at preventing participators in a communication from falsely denying having taken part in that communication.Non-repudiation protocols must keep fairness among participators,but the difference of fairness among protocols does exist in reality,manifesting itself on the degree of strength which it reaches.This paper attempts to extend the definition of fairness and classify protocols into three levels.Meanwhile,some conclusions on fairness of synchronous and asynchronous protocols are also presented.

关 键 词：不可否认协议 公平性差异 异步协议 通讯协议 仲裁机构 

分 类 号：TN915.04[电子电信—通信与信息系统]