摘要
针对MANET(移动自组网)中存在用户实际生命期跨越2个会话窗口的现象,同时为了降低自愈密钥移动自组网管理者的负担,提出了基于滑动窗口的自愈密钥发布机制;建立了双向散列密钥链模型;利用控制参数,实现了t-撤销能力。安全分析表明,在解决用户跨步问题的前提下,没有降低模型的安全性。由于管理者对跨步用户仅需传递一次初始私有信息,避免了会话重建过程中的再次传递,降低了通信开销。
A new self-healing key distribution scheme of MANET based on sliding window was proposed in order to reduce the burden of manager supervising self-healing MANET and to deal with the scene of some users' lifetime bestriding two session windows. A dual hash directional key chain model was set up. The model achieves t-revocation capability by using control parameter. Through the security analysis, the model has settled users' bestriding problem yet still achieved security property. Because manager once distributes initial private information to bestriding user and so avoids distributing it again in rebuilding phase, the model reduces the communication cost.
出处
《通信学报》
EI
CSCD
北大核心
2009年第2期6-11,共6页
Journal on Communications
基金
国家重点基础研究发展计划("973"计划)基金资助项目(2007CB311100)
国家高技术研究发展计划("863"计划)基金资助项目(2007AA01Z446)~~
关键词
自愈
滑动窗口
双向散列密钥链
跨步问题
self-healing
sliding window
dual hash directional key chain
bestriding problem