一个门限共享验证签名方案伪造攻击

Forgery attack on a threshold shared verification signature scheme

对谭凯军等提出的基于数字签名标准DSS/DSA的门限共享验证签名方案的安全性进行了分析 ,给出了对该方案的一个伪造攻击 ,指出该方案是不安全的 。

Tan et al.proposed a threshold shared verification signature scheme based on digital signature standard DSS/DSA.In this paper,we present a forgery attack to this scheme and come to the conclusion that the scheme is insecure and give two ways to overcome this attack.