Cryptology ePrint Archive: Report 2006/393

The Identity Escrow (Group Signature) Scheme at CT-RSA'05 Is Not Non-frameable

Sujing Zhou, Dongdai Lin

Abstract: Following an attack against exculpability, put forward at Asiacrypt'06, of ACJT's group signature, we further found Nguyen's identity escrow (group Signature) scheme did not satisfy non-frameabiliy either.

Category / Keywords: Group Signature, Identity Escrow, Bilinear

Date: received 6 Nov 2006, withdrawn 4 Jan 2007

Contact author: zhousujing at is iscas ac cn

Available format(s): (-- withdrawn --)

Version: 20070105:020415 (All versions of this report)

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