Cryptanalysis of two-factor authenticated key exchange protocol in public wireless LANs

Hyunseung Lee; Donghyun Choi; Yunho Lee; Dongho Won; Seungjoo Kim

Cryptanalysis of two-factor authenticated key exchange protocol in public wireless LANs

Hyunseung Lee, Donghyun Choi, Yunho Lee, Dongho Won, Seungjoo Kim

Research output: Contribution to journal › Article

Abstract

In Public Wireless LANs(PWLANs), user anonymity is an essential issue. Recently, Juang et al. proposed an anonymous authentication and key exchange protocol using smart cards in PWLANs. They claimed that their proposed scheme provided identity privacy, mutual authentication, and half-forward secrecy. In this paper, we point out that Juang et al.'s protocol is vulnerable to the stolen-verifier attack and does not satisfy user anonymity.

Original language	English
Pages (from-to)	194-197
Number of pages	4
Journal	World Academy of Science, Engineering and Technology
Volume	59
Publication status	Published - 2009 Nov
Externally published	Yes

Keywords

Authentication
Key exchange
Pwlans
Smart card
User privacy

ASJC Scopus subject areas

Engineering(all)

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abstract = "In Public Wireless LANs(PWLANs), user anonymity is an essential issue. Recently, Juang et al. proposed an anonymous authentication and key exchange protocol using smart cards in PWLANs. They claimed that their proposed scheme provided identity privacy, mutual authentication, and half-forward secrecy. In this paper, we point out that Juang et al.'s protocol is vulnerable to the stolen-verifier attack and does not satisfy user anonymity.",

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AU - Won, Dongho

AU - Kim, Seungjoo

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AB - In Public Wireless LANs(PWLANs), user anonymity is an essential issue. Recently, Juang et al. proposed an anonymous authentication and key exchange protocol using smart cards in PWLANs. They claimed that their proposed scheme provided identity privacy, mutual authentication, and half-forward secrecy. In this paper, we point out that Juang et al.'s protocol is vulnerable to the stolen-verifier attack and does not satisfy user anonymity.

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KW - User privacy

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