ID-Based Authenticated Group Key Agreement Secure against Insider Attacks

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概要

• 論文の詳細を見る

• In 2004, Choi et al. proposed an ID-based authenticated group key agreement. Unfortunately, their protocol was found to be vulnerable to the insider attacks by Zhang, Chen and Shim. To prevent insider attacks, Shim presented a modification of Choi et al.s protocol. In this letter, we first show that Shims modification is still insecure against insider attacks. We then present a modification of Choi et al.s protocol that resists insider attacks. The counter-measure uses an ID-based signature on transcripts in order to bind them in a session. This prevents any replay of transcripts. Especially, by applying ID-based batch verification, the proposed one still consists of two rounds and is computationally efficient.

• （社）電子情報通信学会の論文
• 2008-07-01

著者

• Lee Dong

  Korea Univ. Kor

• Lee Dong

  Korea University

• CHOI Kyu

  Korea University

• HWNAG Jung

  Korea University

• CHOI Kyu

  Korea Institute of Energy Research, Building Energy Research Center

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