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

Hyunseung Lee, Donghyun Choi, Yunho Lee, Dongho Won, Seung-Joo Kim

Research output: Contribution to journalArticle

2 Citations (Scopus)


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 languageEnglish
Pages (from-to)194-197
Number of pages4
JournalWorld Academy of Science, Engineering and Technology
Publication statusPublished - 2009 Nov 1
Externally publishedYes



  • Authentication
  • Key exchange
  • Pwlans
  • Smart card
  • User privacy

ASJC Scopus subject areas

  • Engineering(all)

Cite this