Password-based group key exchange secure against insider guessing attacks

Jin Wook Byun, Dong Hoon Lee, Jongin Lim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

Very recently, Byun and Leo suggested two provably secure group Diffie-Hellman key exchange protocols using n participant's distinct passwords. Unfortunately, the schemes were found to be flawed by Tang and Chen. They presented two password guessing attacks such as off-line and undetectable on-line dictionary attacks by malicious insider attacker. In this paper, we present concrete counterrneasures for two malicious insider attacks, and modify the two group Diffie-Hellman key exchange protocols to bo secure against malicious insider password guessing attacks. Our counterrneasures do not require additional round costs, hence they are efficient.

Original languageEnglish
Title of host publicationComputational Intelligence and Security - International Conference, CIS 2005, Proceedings
Pages143-148
Number of pages6
DOIs
Publication statusPublished - 2005
EventInternational Conference on Computational Intelligence and Security, CIS 2005 - Xi'an, China
Duration: 2005 Dec 152005 Dec 19

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume3802 LNAI
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

OtherInternational Conference on Computational Intelligence and Security, CIS 2005
CountryChina
CityXi'an
Period05/12/1505/12/19

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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