论文部分内容阅读
1998年Lee 和Chang 提出了一种基于离散对数问题的非交互的群签名方案。Tseng-Jan；李、张、刘、杨；敖、陈、白分别给出了改进方案。该文指出Lee-Chang方案及所有派生类方案都不具备防伪造性。它们都可以用类似的伪造签名方法，产生一个不可跟踪的群签名。
In 1998, Lee and Chang proposed a non-interactive group signature scheme based on the discrete logarithm problem. Tseng-Jan; Li, Zhang, Liu, Yang; Ao, Chen, Bai, respectively, to improve the program. The article points out that the Lee-Chang program and all the derivative programs do not have anti-forgery. They all can use a similar forgery signature method to generate a non-traceable group signature.