一种高效的动态组播密钥管理方案

为了高效地管理动态组播，近年来提出了一些动态组播管理方案。在分析基于两层结构的密钥管理以及安全哈希函数理论的基础上，提出了一种新的密钥管理方案GC-RH以及相应的密钥更新算法。实验结果表明其在密钥存储量、加密计算量、网络通信量等性能方面均优于其他同类方案，比较适用于大型动态组播环境。

Efficient key management scheme for dynamic multicast groups

In order to manage the dynamic multicast efficiently,this paper proposed some management schemes for dynamic multicast group.And analyzed those schemes which based on bi-layered key management and security hash functions, and then presented a new management scheme which was called GC-RH(group center-random GC-random and hash) and related key-updating algorithm. Simulation results show that this scheme has strong points in the key storage, encryption, network traffic aspects over other ones,which fits those large-scale dynamic multicast environment.