一种基于Schnorr体制的(t,n)门限数字签名方案

A(t,n)Thredshod Digital Signature Scheme Based on Schnorr Scheme

提出了一种可防止密钥处理中心欺骗的基于Schnorr体制的(t,n)门限数字签名方案,并在此基础上加入了前向安全的特性,该特性使得如果当前密钥被泄漏,攻击者也不能伪造以前的签名,从而使该方案更具有安全性。

This paper presents a(t,n)threshold version of Schnorr signature scheme which can prevent the dealer from cheating.Then it adds the forward security to this scheme so that even if the current secret key is compromised,the attacker can't forge the signature used before the compromise.So the scheme is more useful and robust.