Improved One-Round Key Exchange Protocol in the Standard Model
Hu Xue-xian①; Liu Wen-fen①; Lan Ju-long②
①Department of Information Research, Information Engineering University, Zhengzhou 450002, China; ②National Digital Switching System Engineering & Technological Research Center, Zhengzhou 450002, China
Abstract:In this paper, a new authenticated key exchange protocol is proposed and its security is proved in the stronger version of the well-known CK model revised by Krawczyk. The analysis of the protocol is under standard model instead of Random Oracle Model (ROM). The proposal is based on the two basic computational complexity assumptions of DDH assumption and the existence of Pseudo Random Function (PRF) family. Compared with Boyd et al.’s protocol, the protocol possesses simpler communication and computation complexity.
胡学先; 刘文芬; 兰巨龙. 改进的基于标准模型的一轮密钥交换协议[J]. 电子与信息学报, 2009, 31(11): 2720-2724 .
Hu Xue-xian①; Liu Wen-fen①; Lan Ju-long②. Improved One-Round Key Exchange Protocol in the Standard Model. , 2009, 31(11): 2720-2724 .