Authenticated Key Agreement in Group Settings  

作　　者：李明 王勇 谷大武 白英彩 

机构地区：[1]Department of Computer Science and Engineering,Shanghai Jiao Tong University [2]School of Software ,Beijing Institute of Technology

出　　处：《Journal of Beijing Institute of Technology》2006年第2期186-189,共4页北京理工大学学报（英文版）

基　　金：Sponsored bythe National Natural Science Foundation of China(60203012)

摘　　要：An enhanced definition of implicit key authentication and a secure group key agreement scheme from pairings are presented. This scheme combines the merits of group public key and key trees to achieve a communication-efficient and authenticated group key agreement protocol. Besides, it avoids dependence on signature or MAC by involving member＇s long-term keys and short-term keys in the group key. Furthermore, the idea behind this design can be employed as a general approach to extend the authenticated two-party Diffie-Hellman protocols to group settings.An enhanced definition of implicit key authentication and a secure group key agreement scheme from pairings are presented. This scheme combines the merits of group public key and key trees to achieve a communication-efficient and authenticated group key agreement protocol. Besides, it avoids dependence on signature or MAC by involving member＇s long-term keys and short-term keys in the group key. Furthermore, the idea behind this design can be employed as a general approach to extend the authenticated two-party Diffie-Hellman protocols to group settings.

关 键 词：key agreement implicit key authentication key tree PAIRINGS 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]