无线传感器网络中基于散列链的随机密钥预分发方案

密钥管理足无线传感器网络安全机制和服务的基石,随机密钥预分发是当前最有效的密钥管理机制,但目前的随机密钥预分发方案存在一个潜在的挑战:无法同时获取理想的网络安全连通性和网络抗毁性.文中提出了一种基于散列链的随机密钥预分发方案,通过有效调节散列链长度、公共辅助节点数、散列链数量等参数,节点仅需预分发数量较少的密钥信息,就能够以较高的概率建立对偶密钥.而且,即使存在大量的受损节点仍能保持较强的网络抗毁性.理论分析和模拟实验证明了所提出方案的有效性和安全性.

Hash Chain Based Random Keys Pre-Distribution Scheme in Wireless Sensor Networks

Key management is the cornerstones of many security mechanisms and services in wireless sensor networks.Random pre-distribution of secret key is one of the most practical schemes in such networks due to its instinct property.These schemes,however,face a challenging problem,that is,it can not acquire the high network connectivity probability and reach strong resilience against the nodes compromise simultaneously.To address this limitation,a hash chain based random key pre-distribution scheme is proposed in t...