一种安全高效的无线群组密钥分配协议*

由于无线用户的移动性和无线移动设备计算能力、存储能力、电池供电能力和带宽资源的局限性,使得有线环境中的群组通信协议不能直接应用于无线移动环境中.基于单向积聚函数,采用集中式与分布式密钥管理相结合的方法,提出了一种新的安全无线群组通信协议,新协议提供组成员的认证、匿名性,具有后向保密性和前向保密性.经过比较,所提出的协议具有存储空间要求少、运算量小、安全性高、结构简单和易于实现的特点,适用于无线网络环境.

Efficient and Security Protocol for Group Key Distributed in Mobile Network

Group communication in mobile networks is often dynamic and thus requires efficient and automated secure group management and seamless combination of secure groups with distributed applications running upon them.Existing approaches to secure group communication cannot satisfy these requirements.In this paper,a new protocol for secure group communication is presented.It is based on the concept of one-way accumulators.The protocol does not require each node to maintain a membership list and efficiently handles dynamic membership events(nodes remove and join).