【摘要】Most authentication protocols are used for remote users, in which the registration is achieved through a secure channel and the authentication is achieved through an insecure channel. However, in real life, there are many applications in which the registration is implemented remotely through an insecure channel and the authentication is achieved through a secure channel. In this paper, a novel authentication protocol that is suitable for the insecure registration is proposed. There are three main contributions, i.e. (ⅰ) the registration can be implemented through an insecure channel, (ⅱ) the authentication is achieved by image exchange between the registration center and the user and (ⅲ) a proxy user authentication mechanism is proposed, which allows a proxy user to act on behalf of the primary user. The correctness and security of the proposed authentication protocol are proved by both theoretical analysis and experimental simulations.
【期刊名称】 The Computer journal
【作者单位】School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, No. 516, Jungong Road, Yangpu, Shanghai 200093, P.R. China,Department of Computer Science and Information Engineering, Asia University, No. 500, Lioufeng Road, Wufeng, Taichung 41354, Taiwan; Department of Communications Engineering, Feng Chia University, No. 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan; Department of Computer Science and Information Engineering, Asia University, No. 500, Lioufeng Road, Wufeng, Taichung 41354, Taiwan,Department of Information Engineering and Computer Science, Feng Chia University, No. 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan;