基于ID的门限群签名方案

A Threshold Group Signature Based on Identity-based Cryptosystems

门限群签名方案在现实中有着广泛的应用,结合基于身份的公钥密码系统提出了一个基于ID的门限群签名方案。该方案实施简单,基于身份公钥系统,任意的验证者只要知道群签名者的身份就可以验证签名的正确性;并且该方案是一个门限签名方案,只有t个以上的人合作才能产生合法签名,减少了权威机构不安全性的威胁。

Threshold group signature is widely used in real word.A threshold group signature based on Identity-based cryptosystems is proposed.This scheme is easy to use,each verifier can verify the signature if he knows the ID of the signers.And it＇s a threshold group signature,only there are more than t participants worked together,the signature can be right.Its reduce the threaten of the undependable authorized center.