中文摘要：

综述了群签名的定义与安全模型的演化、当前主流的基于ROM模型与标准模型的群签名方案及其构建技巧与方法，并进行了比较；讨论了当前实现群签名成员撤销这一重要操作的主要方法，探讨了与群签名相关并有时容易混淆的一些密码系统概念。最后提出了群签名进一步的研究方向。

英文摘要：

This paper surveyed the definition and security model of group signature, main constructions which were classified as ROM based and standard model based. It discussed the different construction techniques and methods, and compared them with each other. It also surveyed the main ways to achieve member revocation for group signature, and discussed the relations between group signature and a couple of similar cryptosystems. Finally, this paper presented some further research directions for group signature.