Efficient key management scheme for dynamic multicast groups
一种高效的动态组播密钥管理方案

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.