Ad hoc网络中基于门限秘密共享方案的安全性分析与优化

The analysis and optimization of secret sharing scheme based on threshold in Ad hoc networks

通过对Ad hoc网络攻击的分类,建立了Ad hoc网络的静态和动态攻击模型,并以此为基础分析了门限秘密共享方案中门限值和秘密更新时间对网络安全性能的影响.通过分析不同节点密度下秘密共享方案中门限值对网络安全性的影响,确定了选取最优的门限值的公式,同时根据运行状况,确定了秘密更新时间的选择公式,确保了Ad hoc网络的安全性.

Based on the classification of the Ad hoc network attacks,this paper establishs a static attack model in Ad hoc network and a dynamic attack model in Ad hoc network.Then it analysis the threshold＇s and the secret update time＇s influence on the network security based on the two models.By analyzing dynamic changes of the number of nodes and topology in the ad hoc network,we believe there are exist a optimal threshold and a secret update time,which can let the network security achieve higher in different intensity of the attack.