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R.H.Shi在IEEE TENCON’02上提出了一种新的群签名,此后Fangguo Zhang和 Kwangjo Kim对这种群签名方案提出一种通用的伪造攻击,证明该方案是不安全的。本文将对这 种攻击进行分析并提出改进的方法。
R.H.Shi proposed a new group signature on IEEE TENCON’02. After that, Fangguo Zhang and Kwangjo Kim proposed a generic forgery attack on the group signature scheme, which proves that the scheme is not secure. This article will analyze this attack and suggest ways to improve it.