摘要： 提出一种高效、低延时的会议密钥管理方案——分层分组式密钥管理(DCKM)方案，DCKM解决了其他密钥管理方案中数据在子组间传递时必须经过多次解密/加密的问题，提高了数据传送效率，降低了数据延迟。在此基础上对系统进行建模分析，提出密钥更新代价最低和系统数据带宽达到最优值的方法来划分子组。仿真结果表明了该方案的正确性。

关键词: 会议密钥, 延时, 带宽, 分层分组式密钥管理

Abstract: An efficient and low-latency conference key management scheme is proposed. With this scheme, the problem of low efficiency in data transmission in existing de-centralized schemes is solved, and the data latency is reduced. Based on this, this paper presents the system modeling and the scheme on how to divide the group to get the minimum rekey cost and the optimal bandwidth.

Key words: conference key, latency, bandwidth, De-Centralized Key Management(DCKM)

中图分类号: 

• TP393