Tseng-Jan群签名方案的安全分析

On the Security of the Tseng-Jan Group Signature Scheme

群签名是一种允许群成员代表群体进行签名的一种数字签名技术 ,它要求签名是匿名进行但又不可伪造 .本文对Y .M .Tseng和J .K .Jan提出的基于离散对数的群签名方案的安全性进行分析 ,提出了一种伪造攻击 。

The Group signature Scheme is a digital signature technique that allows group members to sign on behalf of the group with the signatures anonymous yet unforgeable.This paper made a security analysis of Y.M. Tseng and J.K.Jans discrete logarithm based group signature scheme,and,by creating a forgery attack,proved it not up to the security requirement on group signature schemes.