Title: Remarks on ''Analysis of one popular group signature scheme'' in Asiacrypt 2006

Authors: Giuseppe Ateniese, Jan Camenisch, Marc Joye, Gene Tsudik

Addresses: Department of Computer Science, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA. ' IBM Research, Zurich Research Laboratory, Saumertrasse 4, Ruschlikon CH-8803, Switzerland. ' Thomson R&D France, Corporate Research, Security Laboratory, 1 Avenue de Belle Fontaine, Cesson-Sevigne Cedex 35576, France. ' Department of Information and Computer Science, University of California, Irvine, CA 92697-3425, USA

Abstract: At Asiacrypt 2006, Cao presented a putative framing |attack| against the ACJT group signature scheme by Ateniese et al. This paper shows that the attack framework considered by Cao is invalid. As we clearly illustrate, there is no security weakness in the ACJT group signature scheme as long as all the detailed specifications of the original paper are being followed.

Keywords: ACJT scheme; group signatures; public key cryptography; framing attack; security.

DOI: 10.1504/IJACT.2009.028030

International Journal of Applied Cryptography, 2009 Vol.1 No.4, pp.320 - 322

Published online: 31 Aug 2009 *

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