【摘要】 公平的不可否认协议解决了电子商务中信息传输的互相否认问题,并使通信各方处于平等的位置。也就是说,对各方来说,协议是公平的。该文提出了一个“优化”意义上的公平的多方不可否认协议,在正常情况下,协议并不涉及TTP,只有在一方不诚实或通信崩溃的情况下才会使用TTP,避免了TTP成为系统通信的瓶颈,提高了协议的效率。更多还原

【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.更多还原