Cryptology ePrint Archive: Report 2005/197

Weaknesses in two group Diffie-Hellman key exchange protocols

Qiang Tang and Liqun Chen

Abstract: In this paper we show that the password-based Diffie-Hellman key exchange protocols due to Byun and Lee suffer from dictionary attacks.

Category / Keywords: password-based key agreement, authentication

Date: received 24 Jun 2005, last revised 10 Jul 2005

Contact author: qiang tang at rhul ac uk

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Version: 20050710:213021 (All versions of this report)

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