EAR Protocol-Towards Fair Optimistic Non-Repudiation Exchange  

作　　者：WANG Hai-yan WANG Ru-chuan 

机构地区：[1]Department of Computer Science and Technology, Nanjing University of Posts and Telecommunications, Nanjing 210003, P.R. China [2]State Key Laboratory of Information Security, Beijing 100039, P.R. China

出　　处：《The Journal of China Universities of Posts and Telecommunications》2005年第2期59-63,共5页中国邮电高校学报（英文版）

基　　金：The workis sponsored by National Natural Science Foundation of China (60173037 ,70271050) ; National"863"High Technology Projects of China(2004AA775053) , Natural Science Foundation of Jiangsu Province and the Pre-research Project Funded by Natural Science Foundation of Jiangsu Province (BK2004218) ,High Technology Research Project of Jiangsu Province(BG2004004) and key Laboratory of Information Technology Processing of Jiangsu Province(kjs05001) .

摘　　要：Fairness is of crucial importance for the exchange protocols via Internet . Non-repudiation therefore becomes one of the vital premises, which are essential in the exchange of sensitive and important messages. This paper is to propose a new exchange protocol, termed ＂EAR＂ Exchange Protocol as it consists of three sub-protocols ： Exchange sub-protocol, Abort sub-protocol and Recovery sub-protocol. It is to be argued that the incorporation of these three sub-protocols may effectively enables EAR to assure non-repudiation, strong fairness, timeliness, confidentiality and the minimized involvement of the Trusted Third Party （TTP）.Fairness is of crucial importance for the exchange protocols via Internet . Non-repudiation therefore becomes one of the vital premises, which are essential in the exchange of sensitive and important messages. This paper is to propose a new exchange protocol, termed ＂EAR＂ Exchange Protocol as it consists of three sub-protocols ： Exchange sub-protocol, Abort sub-protocol and Recovery sub-protocol. It is to be argued that the incorporation of these three sub-protocols may effectively enables EAR to assure non-repudiation, strong fairness, timeliness, confidentiality and the minimized involvement of the Trusted Third Party （TTP）.

关 键 词：NON-REPUDIATION fair exchange PROTOCOL TTP 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]