Cryptology ePrint Archive: Report 2004/268

Untraceability of Wang-Fu Group Signature Scheme

Zhengjun Cao and Lihua Liu

Abstract: Wang et al. recently proposed an improved edition based on Tseng-Jan group signature scheme${}^{[1]}$. In the paper, we show that the scheme is untraceable by a simple attack.

Category / Keywords: cryptographic protocols / group signature scheme, full-anonymity, full-traceability.

Date: received 16 Oct 2004

Contact author: zjcamss at hotmail com

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Version: 20041021:200018 (All versions of this report)

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