Efficient three-party password-based key exchange scheme

Authors:
Der-Chyuan Lou;Hui-Feng Huang
Affiliations:
Department of Computer Science and Information Engineering, Chang Gung University, Kweishan, Taoyuan 33302, Taiwan;Department of Computer Science and Information Engineering, National Taichung Institute of Technology, Taichung 404, Taiwan
Venue:
International Journal of Communication Systems
Year:
2011

Citing 0
Cited 3

Cryptanalysis of a communication-efficient three-party password authenticated key exchange protocol

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Cryptanalysis of an efficient three-party password-based key exchange scheme

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Finding and fixing vulnerabilities in several three-party password authenticated key exchange protocols without server public keys

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Abstract

In three-party password-based key exchange protocol, a client is allowed to share a human-memorable password with a trusted server such that two clients can negotiate a session key to communicate with each other secretly. Recently, many three-party password-based key exchange protocols have been developed. However, these proposed schemes cannot simultaneously achieve security and efficiency. Based on elliptic curve cryptography (ECC), this paper will propose a new simple three-party password-based authenticated key exchange scheme. The proposed method not only reduces computation cost for remote users and a trusted server but also is more efficient than previously proposed schemes. It is better suited for resource constrained devices, such as smart cards or mobile units. Copyright © 2010 John Wiley & Sons, Ltd.