基于地理位置的蜂窝状密钥管理方案

Improved key management scheme for wireless sensor networks using hexagon cells and deployment knowledge

无线传感器网络是由计算能力、存储能力、通信能力严格受限的传感器节点组成的,密钥管理是安全问题的基础,可以保证后续信息的保密性及认证性。采用蜂窝状网络划分方式对基于地理位置的密钥分配方案作了改进,改进后的方案相对原方案减少了传感器节点的存储量,具有更好的抗攻击能力,适用于大规模网络。

WSN is consisted of low-computation,low-storage,low-communication ability micro nodes,key management acts as the basic manner to assure security and authentication of information transported by nodes in WSN.An improved scheme making use of deploy knowledge based on random key predistribution had been made,adopting hexagon cells.The new scheme can use less memory,perform better with the same number of compromised nodes,and suit for large-scale networks.