新的基于身份认证的群密钥协商协议  

Novel ID-based group authenticated key agreement scheme

作　　者：陈海红[1] 李军义 

机构地区：[1]湖南永州职业技术学院计算机系,湖南永州425000 [2]湖南大学信息科学与工程学院,长沙410082

出　　处：《计算机工程与应用》2017年第21期103-109,共7页Computer Engineering and Applications

基　　金：湖南省教育厅课题项目(No.13C971)

摘　　要：群密钥协商(GKA)协议在构建安全多播信道中扮演着主要角色。由于公钥管理的简洁性和高效性,基于身份的认证群密钥协商协议密码系统近年来成为热门研究方向。提出了一个基于Weil对和完全三叉树结构的群密钥协商协议,同时提出了成员加入和离开子协议。对新方案的安全性进行了分析,结果显示,新方案可以抵抗常见的攻击。在性能方面,新方案在参与者较多时有较明显的计算优势。Group Key Agreement（GKA）protocol plays a key role in the construction of secure multicast channels.Because of the simplicity and efficiency of public key management, the ID-based Authenticated Group Key Agreement Protocol（AGKA）cryptosystem has become a hot research direction in recent years. This paper proposes a new Weil pairing and completely trigeminal tree based group key agreement protocol, designs the participants join-and-leave pre-protocol.Security analysis and performance analysis show that the new scheme satisfies all known security requirements.Compared with the existing schemes, the new scheme has obvious advantages in terms of performance.

关 键 词：群密钥协商 基于身份的认证 WEIL对 三叉树 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]