存储最优的传感器网络密钥共享

基于双线性函数,提出了一个存储最优的传感器网络密钥共享方法,指出了当前密钥管理协议在传感器网络中的不适用性。并对该共享方法的安全性和性能(存储、计算、通信)进行了分析。与其他方法相比,具有以下优点:(1)存储最优,只要求每个节点保存一个密钥和H ash函数,存储量与网络规模无关;(2)网络是确定连通的;(3)具有节点鉴别能力。因此,该方法能在较低耗费的前提下实现安全的、存储最优的、确定连通的传感器网络密钥共享。

Storage-Optimal Key Sharing with Authentication in Sensor Networks

A storage-optimal key sharing scheme with authentication is presented based on bilinear mapping.The secure communications over the resource-constrained devices are extended.And its security and the overload(including storage,computation and communication) are analyzed.Compared with the previously proposed schemes,the scheme has the following advantages:(1)It is optimal in memory consumption.Each sensor node is only required to hold one secret key and Hash functions,which is independent of the scale of network;(2)The sensor network is guaranteed to be wholly connected;(3)The node authentication is also provided.Finally,the result proves that the scheme is secure,storage-optimal,and deterministically wholly-connected with the moderate energy-consumption.