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An improved conference-key agreement protocol for dynamic groups with efficient fault correction

Authors

  • Orhan Ermiş,

    Corresponding author
    1. Computer Networks Research Laboratory-NETLAB, Department of Computer Engineering, Boğaziçi University, Bebek, Istanbul, Turkey
    • Correspondence: Orhan Ermiş, Computer Networks Research Laboratory-NETLAB, Department of Computer Engineering, Boğaziçi University, 34342, Bebek, Istanbul, Turkey

      E-mail: orhan.ermis@boun.edu.tr

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  • Şerif Bahtityar,

    1. Progress R&D Center, Provus A MasterCard Company, Şişli, Istanbul, Turkey
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  • Emin Anarim,

    1. Department of Electrical and Electronics Engineering, Boğaziçi University, Bebek, Istanbul, Turkey
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  • M. Ufuk Çağlayan

    1. Computer Networks Research Laboratory-NETLAB, Department of Computer Engineering, Boğaziçi University, Bebek, Istanbul, Turkey
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Abstract

The pervasive usage of the Internet has made secure group communications a significant issue. Conference-key agreement protocols provide secure group communications with lower computational cost. Providing key agreements and updates of dynamic groups in an efficient manner is a significant challenge for conference-key agreement protocols. Auxiliary key agreement operations are needed to solve the challenge. In this paper, we propose an improved conference-key agreement protocol, called Dynamic Conference-Key Agreement Protocol, that consists of Initial Conference-Key Agreement Protocol and Auxiliary Conference-Key Agreement operations. Dynamic Conference-Key Agreement Protocol has operations to handle dynamic groups. The proposed protocol has better fault correction and provides the same security level with the existing ones. Copyright © 2014 John Wiley & Sons, Ltd.

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