A Deniable Authenticated Key Agreement Protocol  

作　　者：TIAN Haibo1,2, CHEN Xiaofeng1,2, ZHANG Fangguo1,2, WEI Baodian1,2 1. School of Information Science and Technology, Sun Yat-Sen University, Guangzhou 510006, Guangdong, China 2. Guangdong Key Laboratory of Information Security Technology, Sun Yat-Sen University, Guangzhou 510275, Guangdong, China 

出　　处：《Wuhan University Journal of Natural Sciences》2008年第6期645-650,共6页武汉大学学报（自然科学英文版）

基　　金：Supported by the National Natural Science Foundation of China (60473027, 60773202);Foundation of Sun Yat-Sen University (35000-2910025,35000-3171912)

摘　　要：This paper presents a deniable authenticated key agreement protocol. This protocol can provide an authenticated session key while the sender and the receiver can deny their involvement in such a protocol if the protocol is executed successfully. Then both can deny their transmitted messages protected by the authenticated session key. If this protocol fails, no authenticated session key can be established and no protected messages can be transmitted. The protocol can be proved secure against key compromise impersonation attack. The protocol employs a new method to isolate a session key from confirmation keys.This paper presents a deniable authenticated key agreement protocol. This protocol can provide an authenticated session key while the sender and the receiver can deny their involvement in such a protocol if the protocol is executed successfully. Then both can deny their transmitted messages protected by the authenticated session key. If this protocol fails, no authenticated session key can be established and no protected messages can be transmitted. The protocol can be proved secure against key compromise impersonation attack. The protocol employs a new method to isolate a session key from confirmation keys.

关 键 词：deniable authentication key agreement key compromise impersonation 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]