安全群组通信的研究是一个十分活跃的研究领域，群组密钥管理机制的研究是其中最具有挑战性的工作。
Secure group Communication System has been an active research domain, in which the group key management scheme is the most challenging work.
相对于端到端的通信，安全群组通信更为复杂，从基本算法、系统及安全协议到安全实现都还存在需解决的问题。
Secure group communication is more complicated than peer to peer communication, and poses a number of challenges ranging from basic algorithms, systems and secure protocols to secure implementation.
在基本知识查询和处理语言(KQML)的基础上进行扩充，使得KQML能够支持多智能体群组密钥更新协议和安全群组通信协议。
Extends the base knowledge query and manipulation language (KQML) to support multi-agent group re-keying protocols and secure group communication protocol.
安全的群组通信是网格环境下开展大量的协作与资源共享的必要手段。
Secure group communication is a critical means to implement a great deal of collaboration and resource sharing in grid environment.
组播是面向群组接收者的首选网络通信技术，但缺乏安全机制限制了组播在各种网络业务中的广泛应用。
Multicast is the current prime network technique focusing on the group receivers, but the absence of security mechanism has limited its application in various network services.
群组密钥协商(GKA)是保证随后安全通信的重要手段之一。
Group Key Agreement (GKA) is one of the important methods to ensure the subsequent secure communication.
因此，本课程讲述了CSCW的群组通信原理，讨论点对多点和多点对多点通信模型下的路由问题、可靠传输问题和安全问题。
This course introduces the theory of group communication of CSCW. We discuss the route, reliable transfer and security problems under point-to-multipoint, multipoint-to-multipoint communication.
因此，本课程讲述了CSCW的群组通信原理，讨论点对多点和多点对多点通信模型下的路由问题、可靠传输问题和安全问题。
This course introduces the theory of group communication of CSCW. We discuss the route, reliable transfer and security problems under point-to-multipoint, multipoint-to-multipoint communication.
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