Weaknesses in the Hur–Shin–Yoon decentralized group key management

  • Authors:

  • Jung Yeon Hwang;Ji Young Chun;Dong Hoon Lee

  • Affiliations:

  • Graduate School of Information Management and Security (CIST), Korea University, Republic of Korea;Graduate School of Information Management and Security (CIST), Korea University, Republic of Korea;Graduate School of Information Management and Security (CIST), Korea University, Republic of Korea

  • Venue:
  • Wireless Communications & Mobile Computing
  • Year:
  • 2009

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Abstract

Recently, to provide data confidentiality against intermediate relaying proxies, Hur, Shin, and Yoon proposed a decentralized group key management(GKM) scheme for dynamic networks that uses proxy cryptography. We show that the GKM scheme unfortunately does not provide data confidentiality. We also present a counter measure to fix the security breaches. Copyright © 2009 John Wiley & Sons, Ltd.