中文摘要：

GSAKMP是为多播群组安全所设计的一个密钥管理协议框架。在分析了GSAKMP密钥相关机制的基础上，结合多播水印的知识，对包括数据保密性和版权保护的安全覆盖多播水印协议的设计进行了研究，该协议适用于需要进行泄漏跟踪的流媒体传输。

英文摘要：

GSAKMP is a key-management protocol framework for multicast and group security. Based on the analysis of cryptographic key-related mechanisms of GSAKMP, using some knowledge about multicast watermarking, a secure overlay multicast watermarking protocol which includes both data confidentiality and copyright protection, is designed and analyzed. It is important for stream media transmission where the leaking identification is needed.