基于身份的公平不可否认协议  

Fare non-repudiation protocol based on identity-based cryptography

作　　者：刘宏伟[1] 谢维信[1] 喻建平[1] 张鹏[1] 

机构地区：[1]深圳大学信息工程学院,广东深圳518060

出　　处：《通信学报》2009年第7期118-123,共6页Journal on Communications

基　　金：国家自然科学基金资助项目(60773203);深圳大学自然科学基金资助项目(000016)~~

摘　　要：利用基于身份的密码体制,提出了一种基于身份的一次性盲公钥签名方案,并以此为基础提出了一个新的公平不可否认协议,实现了协议中发送方的匿名性,解决了通信中因发方身份公开而带来的信息内容被猜到以至被故意延迟阅读或拒收的问题,保证了收发双方的公平性及不可否认性。分析表明,该一次性盲公钥签名方案及不可否认协议是安全的,且具有较高的效率。A signature scheme with the one-off blind public key was proposed based on identity-based cryptography, and thus was applied in a new fare non-repudiation protocol. In this protocol, the sender was anonymity, so avoid that the recipient deliberately rejected the files or delayed reading the files when the files were not good for them, which could as- sure the equity and non-repudiation of the communication between the sender and the recipient. The signature scheme with the one-off blind public key and non-repudiation protocol is both secure and effective by analysis.

关 键 词：基于身份密码体制 一次性盲公钥签名 匿名性 公平性 不可否认性 

分 类 号：TP309.6[自动化与计算机技术—计算机系统结构]