基于条件可信第三方的不可否认协议  

Non-repudiation protocol based on conditional trusted third party

作　　者：沈炜[1] 陈纯[1] 

机构地区：[1]浙江大学计算机科学系信雅达计算机信息安全研究中心,浙江杭州310027

出　　处：《浙江大学学报（工学版）》2004年第1期35-38,共4页Journal of Zhejiang University：Engineering Science

摘　　要：扩展半可信第三方的思想,提出"条件可信第三方"的概念,即任意第三方在满足限定条件的前提下,要么是可信的,要么行为是可验证的.同时,结合离线第三方的思想,提出基于离线条件可信第三方的不可否认协议.相比于原有协议,新的协议进一步减少了对可信第三方的依赖.The idea of conditional TTP was developed on the basis semi-trusted TTP. The term of 'conditional trusted third party' means that on the condition of third party satisfying the pre-conditions, if he behaves right, then he is trusted, else his behavior can be checked by participators of the protocol. A new protocol adopting off-line and conditional TTP was put forward. Compared with available non-repudiation protocols, this one progresses further in reducing intervention of TTP in fair exchange.

关 键 词：条件可信第三方 不可否认协议 安全协议 离线第三方 网络环境 

分 类 号：TN915.04[电子电信—通信与信息系统]