基于组播用户动态模型的密钥批更新研究

Batch rekeying based on the dynamics model for multicast membership

根据组播用户动态模型分析了用户的请求时延 ,结果表明时延与指数分布的参数和批更新间隔长度有关 ;讨论了批更新间隔内的用户申请量与批更新间隔长度和当前时间的关系 ,结果表明申请量是时间的负指数函数 ;还提出了一种变间隔的批更新方法 。

The user′s request response delay of batch rekeying based on the dynamics model for multicast membership was analyzed. The result showed that the delay was relevant to the parameter of the exponential distribution and the batch interval. The relationship among the number of users request, the rekey interval and the actual time was discussed. The result showed that the number of users′ request was the negative exponential function of actual time. This paper presented a new batch rekey scheme with steady rekey traffic.