On-line password guessing attack on Lu-Cao key agreement protocol for secure authentication

Cheng Chi Lee, Kou You Huang, Shiow Yuan Huang

Research output: Contribution to journalJournal Article peer-review

3 Scopus citations

Abstract

In 2006, Lu and Cao proposed an off-line password guessing attack on an efficient key agreement protocol for secure authentication. Lu and Cao pointed out that the Kim et al.’s protocol is vulnerable to the off-line password guessing attack. Therefore, they presented a modified protocol to avoid this attack. However, in this paper, we shall show that their modified protocol cannot resist the on-line password guessing attack.

Original languageEnglish
Pages (from-to)595-598
Number of pages4
JournalJournal of Discrete Mathematical Sciences and Cryptography
Volume12
Issue number5
DOIs
StatePublished - 2009
Externally publishedYes

Keywords

  • Authenticated key agreement
  • Cryptanalysis
  • Password guessing attack
  • Security

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