【摘要】 反拒认协议是为参与电子交易的双方事后抵赖提供不可否认证据的一个重要安全协议。然而, 交易的高效性、公平性也是人们所追求的目标。该文基于公告牌给出了一个高效的、公平的反拒认协议,有 效地解决了由于可信的第3方负担过重造成的瓶颈。并实现了公平性,高效性,低计算量特点。更多还原

【Abstract】 Non-repudiation is a security protocol to provide non-repudiation evidences for two transaction parties against the other falsely denying a particular event in electronic commerce while efficiency and fairness are what people have expected during electronic commerce. In this paper, a fair non-repudiation protocol based on bulletin-board is proposed to resolve the problem that a trusted third party brings into bottle-neck of communication. This protocol can achieve non-repudiation service in an efficient and practical way.更多还原