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Member Tampering Attack on Burmester-Desmedt Group Key Exchange Protocol and Its Countermeasure

Author

Listed:
  • Da-Zhi Sun

    (Tianjin Key Laboratory of Advanced Networking (TANK), College of Intelligence and Computing, Tianjin University, Tianjin 300350, China)

  • Yangguang Tian

    (Department of Computer Science, University of Surrey, Guildford GU2 7XH, Surrey, UK)

Abstract

With the rapid development of cloud computing and mobile networks, more and more application scenarios require a secret group key for secure communication. Group Key Exchange (GKE) protocol provides a secret group key for three or more members. Burmester and Desmedt presented an influential GKE protocol, which has a broadcast version and a cyclic version. In this paper, we investigate the security weaknesses of the Burmester-Desmedt protocol. We report that both the broadcast version and the cyclic version of the Burmester-Desmedt protocol suffer member tampering attacks if the two members that belong to both group A and group B are corrupted. That is, two corrupted members can add some unknowing members of group A to group B and trick the legal members of group B to believe that these unknowing members share the secret group key with them after a protocol run. Furthermore, to defeat the member tampering attack, we propose digital signature-based improvements on the broadcast version and the cyclic version of the Burmester-Desmedt protocol. We hope our research results will encourage the development of more robust and effective GKE protocols that stand rigorous security analysis.

Suggested Citation

  • Da-Zhi Sun & Yangguang Tian, 2022. "Member Tampering Attack on Burmester-Desmedt Group Key Exchange Protocol and Its Countermeasure," Mathematics, MDPI, vol. 10(19), pages 1-18, October.
    • Handle: RePEc:gam:jmathe:v:10:y:2022:i:19:p:3685-:d:936559
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