摘要
批量密钥更新可以有效解决实时密钥更新所产生的低效和失序等问题。讨论了批量密钥更新管理中密钥分发问题,着重分析了密集模式协议(PIM-DM)实现方法,并针对密集模式协议,添加了批量密钥更新管理模型,对树型结构的密钥管理,利用NS仿真软件中的多播协议进行了仿真。结果表明提高了密钥更新效率,增强了该协议的安全性。
Batch rekeying can efficiently resolve the problems, such as inefficiency and out - of - sync, produced by individual rekeying. Mainly discusses the group key distribution in batch rekeying management,analyzes emphatically the realization of the multicast protocol, especially the PIM- DM protocol, and directed at the PIM - DM protocol, develops a model of batch rekeying management. Makes use of multicast protocol in software NS to conduct simulation study on key management of key tree mechanism. As a result, it has improved the group rekeying efficiency and the security of this protocol is enhanced.
出处
《计算机技术与发展》
2007年第9期160-162,170,共4页
Computer Technology and Development
基金
安徽省高校自然科学基金重点资助项目(2005KJ009ZD)
关键词
多播安全
批量更新
网络仿真
multicast security
batch rekeying
network simulation
