Improvement of password authenticated key exchange based on RSA for imbalanced wireless networks

Her Tyan Yeh, Hung Min Sun*, Cheng Ta Yang, Bing Cheng Chen, Vincent S. Tseng

*Corresponding author for this work

Research output: Contribution to journalLetter

10 Scopus citations

Abstract

Recently, Zhu et al. proposed an password-based authenticated key exchange protocol based on RSA such that it is efficient enough to be implemented on most of the target low-power devices such as smart cards and low-power Personal Digital Assistants in wireless networks. They claimed that the proposed scheme is secure against dictionary attacks. In this paper, we show that the scheme proposed by Zhu et al. is insecure against undetectable on-line password guessing attacks. Furthermore, we examine Zhu et al.'s protocol and find that Zhu et al.'s protocol does not achieve explicit key authentication. An improved version is then proposed to defeat the undetectable on-line password guessing attacks and also provide explicit key authentication.

Original languageEnglish
Pages (from-to)3278-3282
Number of pages5
JournalIEICE Transactions on Communications
VolumeE86-B
Issue number11
StatePublished - 1 Jan 2003

Keywords

  • Authenticated
  • Guessing attack
  • Key exchange
  • Password
  • Wireless network

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