A nonrepudiable multi-proxy multi-signature scheme

作者:Xue, Qingshui; Cao, Zhenfu
来源:SympoTIC'04 - Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications - Proceedings, Slovakia, 2004-10-24 to 2004-10-26.

摘要

In this paper, the authors first review Hwang et al. 's a new multi-proxy multi-signature scheme and point out its disadvantages. To overcome the weakness, a nonrepudiable multi-proxy multi-signature scheme based on Hwang et al's scheme, is proposed. The improved version can provide the fair protection for the original signer group and the proxy group. Moreover, it is secure against the forgery attack without the secure channel.

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