基于簇的无线传感器网络密钥管理方案

The Key Management Scheme in Clustered Wireless Sensor Network

在无线传感器网络中,安全通信有两种类型:一对多和一对一。提出一套低复杂度算法产生并分配两种类型的密钥。算法对基于簇的层次型网络进行设计,算法包括初始密钥管理、周期密钥管理和簇动态密钥管理,算法中的所有通信都使用椭圆曲线数字签名方案验证。通过仿真实验,结果清晰地显示出该方案对资源受限的无线传感器网络是安全可行的。

In Wireless Sensor Network（WSN）,there are two types of security communications： one-to-all and one-to-one.The paper proposes a set of less complexity arithmetics to generate and distribute two types of secret keys.The arithmetics are designed for a clustered hierarchical network.The arithmetics include the initial key management,the periodic key management and the key management upon cluster dynamics.All the communications in the arithmetics are authenticated for using Elliptic Curve Digital Signature scheme.The scheme are evaluationed by simulations.The results indicate clear security and feasibility of our approach in the resource-restricted Wireless Sensor Network.