作　　者： ; ; ; ;

机构地区： 华中科技大学计算机科学与技术学院

出　　处： 《计算机工程与科学》 2007年第12期7-10,32,共5页

摘　　要： 目前提出的密钥协商协议大部分都是基于Diffie-Hellman交互,对协商信息进行认证,并在成员之间建立一个会话密钥,实施安全通信。本文找出了文献[1]中的两个安全漏洞,利用双线性映射性质,提出了一种基于用户ID的会议密钥协商方案。此方案能够有效地抵抗重放攻击、合谋攻击、假冒攻击、中间人攻击,与文献[1]的方法相比,具有更高的安全性和效率,在多对多网络通信中有着很强的实用性。 Most published key agreement protocols are based on the Diffie-Hellman key agreement, which enables all parties to establish a session key and communicate securely. In the conference key agreement system, the agreement informa- tion needs to be authenticated. In this paper,we find out two leaks of literature [1], and then propose an ID-based confer- ence key agreement scheme from pairings. The proposed scheme is secure against replaying attacks, conspiratorial imper- sonation attacks, impersonation attacks and man-in-the-middle attacks. Compared to [1], it has better security, efficiency, and practicability in the multi-party communications through the network.

关 键 词： 会议密钥协商 双线性映射 基于身份

领　　域： [自动化与计算机技术] [自动化与计算机技术]