改进的无线传感器网络密钥预分发方案

针对现有的无线传感器网络密钥预分发方案密钥易泄露,不可追溯泄密传感器节点等产生的信息泄露问题,新方案改进了已有的基于多项式密钥预分发方案,将节点位置信息和身份信息引入传输信息的路径中,并经过密钥更新及管理说明,连通性和安全性分析。证明新方案提高了已有方案的抗捕获性,易于基站即时发现捕获节点,即时进行调整和明确所接收到的信息的来源。易于用在军事领域及不安全环境中进行信息监测及传输。

Improved Key Pre-distribution Scheme in Wireless Sensor Network

Aiming at easy leakage of the keys in original key distribution scheme, an improved polynomial-based key pre- distribution scheme for wireless sensor network is proposed and designed, which introduces the identity information into the path of information transmission. Analysis on key updating and management, connectivity and security indicates that this improved scheme could raise the key capture-resistance of the original scheme, make the basestation easy to find the captured nodes, thus carry out timely adjustment and define the information source. This improved scheme could also he applied in the military field or unsafe environment for information supervision and transmission.