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Cryptanalysis on the robust and simple authentication protocol for secure communication on the web

Research output: Contribution to journalArticlepeer-review

Abstract

Recently, Yoon et al. exhibited the vulnerability of the smart-card-equipped password based authentication protocol proposed by Chien et al. to the Denning-Sacco attack. Furthermore, they also pointed out that the protocol does not provide the perfect forward secrecy. Accordingly, they presented an enhanced protocol to strengthen the security. This letter, however, demonstrates an interleaving attack on the Yoon et al.'s improved protocol and also discusses how to defend the protocol from the attack presented here.

Original languageEnglish
Pages (from-to)1859-1862
Number of pages4
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
VolumeE89-A
Issue number6
DOIs
StatePublished - Jun 2006

Keywords

  • Authentication
  • Diffie-Hellman problem
  • Interleaving attack
  • Password based key exchange protocol
  • Smart-card

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