|
|
An optimistic fair multi-party non-repudiation protocol |
Deng Suoyun; Sui Aifen; Hu Zhengming; Yang Yixian |
Info. Centre Beijing Univ. of Posts and Telecomm.,Beijing 100876 China |
|
|
Abstract Fair non-repudiation protocols resolve the problem of non-repudiation during the course of transferring information in electronic commerce and make all sides in equal positions. That is to say, the protocol is fair for each side. In this paper a fair multi-party non-repudiation protocol in "optimistic" sense is proposed. In the protocol, under normal conditions TTP is not needed. Only when either side is not honest or the communication collapses, is TTP involved in. This results in an efficient fair multi-party non-repudiation protocol.
|
Received: 15 June 2001
|
|
|
|
|
|
|
|