An Efficient Hierarchical Group Key Management Protocol for a Ubiquitous Computing Environment

  • Sangjin Kim
  • Taewook Ahn
  • Heekuck Oh
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3983)

Abstract

We propose a new centralized hierarchical group key management protocol for a ubiquitous computing environment. The proposed scheme only uses XOR and hash operations during group key updates. Moreover, the order of the total message size sent during key updates is O(log n), where n is the size of the group. As a result, our scheme is very practical, scalable, and well suited for low-power mobile devices. We have also proved the security of our proposed protocol.

Keywords

group key management centralized hierarchical scheme ubiquitous computing 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Sangjin Kim
    • 1
  • Taewook Ahn
    • 2
  • Heekuck Oh
    • 2
  1. 1.School of Internet Media EngineeringKorea University of Technology and EducationRepublic of Korea
  2. 2.Department of Computer Science and EngineeringHanyang UniversityRepublic of Korea

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