Remarks on "Analysis of one popular group signature scheme" in Asiacrypt 2006

Authors:
Giuseppe Ateniese;Jan Camenisch;Marc Joye;Gene Tsudik
Affiliations:
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
Venue:
International Journal of Applied Cryptography
Year:
2009

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Analysis of one popular group signature scheme

ASIACRYPT'06 Proceedings of the 12th international conference on Theory and Application of Cryptology and Information Security

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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.