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Symmetry 2017, 9(8), 134; https://doi.org/10.3390/sym9080134

Password Authenticated Key Exchange and Protected Password Change Protocols

1,†
,
2,3,†,* and 4,†
1
Graduate Institute of E-Learning, National Changhua University of Education, Changhua 500, Taiwan
2
Department of Computer Science and Information Engineering, Asia University, Taichung 413, Taiwan
3
Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan
4
Department of Management Information Systems, National Chung Hsing University, Taichung 402, Taiwan
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 26 April 2017 / Revised: 3 June 2017 / Accepted: 5 June 2017 / Published: 28 July 2017
(This article belongs to the Special Issue Symmetry in Secure Cyber World)
Full-Text   |   PDF [232 KB, uploaded 28 July 2017]

Abstract

In this paper, we propose new password authenticated key exchange (PAKE) and protected password change (PPC) protocols without any symmetric or public-key cryptosystems. The security of the proposed protocols is based on the computational Diffie-Hellman assumption in the random oracle model. The proposed scheme can resist both forgery server and denial of service attacks. View Full-Text
Keywords: authenticated key exchange; Diffie-Hellman problem; password authentication; provable security authenticated key exchange; Diffie-Hellman problem; password authentication; provable security
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Chang, T.-Y.; Hwang, M.-S.; Yang, C.-C. Password Authenticated Key Exchange and Protected Password Change Protocols. Symmetry 2017, 9, 134.

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