可扩展的P2PSIP会议密钥管理协议

Scalable P2PSIP conference key management scheme

针对P2PSIP多媒体会议低延时、高扩展性需求,提出一种分级的会议密钥管理协议HOAKA。根据处理能力将会议节点分成两级,由少量高性能节点负责会议管理,所有成员通过单向累加器算法协商会议密钥。研究结果表明,HOAKA不仅具有较高的安全性,而且计算、存储开销低,密钥更新时延小,具有良好的可扩展性。

In order to meet the requirements of low latency and high scalability for P2PSIP conference, this paper proposed a hierarchical conference key management protoeol-HOAKA. In HOAKA, conference nodes were divided into two classes according to their capabilities, a small amount of high-performance nodes managed the conference, and all the conferees agreed on a conference key by using one-way accumulator. The results show that HOAKA has not only high security, but also low computing and storage overhead as well as small 1/ey update delay. It has good scalability.