An Efficient Identity-Based Key Agreement Protocol in a Multiple PKG Environment

作     者：ZHOU Huan WANG Xiaofeng SU Jinshu 

作者机构：School of Computer National University of Defense Technology National Laboratory for Parallel and Distributed Processing National University of Defense Technology 

出 版 物：《Wuhan University Journal of Natural Sciences》 (武汉大学学报（自然科学英文版）)

年 卷 期：2014年第19卷第5期

页      面：455-460页

学科分类：0810[工学-信息与通信工程] 08[工学] 081001[工学-通信与信息系统] 081201[工学-计算机系统结构] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Supported by the National Natural Science Foundation of China(61103194) 

主　　题：key agreement identity based public computation multiple PKG environment 

摘      要：Identity-based key agreement protocol affords a natural way to combine the participant＇s identity with its public key. However, most of them just consider the key agreement in a single private key generator （PKG） environment. In addition, the existing key agreement protocols have a great computing overhead for mobile computing which is more and more popular today. This paper proposes a new identity based key agreement protocol. With the help of mathematical tools, we make our protocol applied in multiple PKG environment. It also satisfies all the security properties which is set for key agreement protocol. Moreover, some of its time-consuming operations can be delivered to untrusted public computation resources, so its computing complexity can be greatly reduced.