Abstract: On the basis of analyzing existed schemes，a distributed group key management scheme based on zero-knowledge set is proposed.This scheme achieves the integration of zero-knowledge set and hierarchy，and it is shown that the efficiency of communication is improved so much by the analyses of the storage，the calculation，the time of broadcast and the one-to-one.So it possesses better scalability than other schemes，can be applied to actual internet environment anonymity situation，such as secret network meeting.

Key words: group key management, zero-knowledge set, distributed, hierarchy

摘要： 在分析现有群组密钥交换协议的基础上，提出了一种基于零知识的分布式群组密钥管理方案。该方案实现了零知识性和分层结构的有机结合，对组控制器的密钥存储量、加密计算量、单播和广播次数等的分析结果表明，该方案提高了群组通信的效率，并具有良好的可扩展性，可应用于网络秘密会议等多种群组通信环境。

关键词: 群组密钥管理, 零知识集, 分布式, 层次结构