无线传感器网络中移动场景下的密钥管理方案

Key Management Scheme of Wireless Sensor Networks in Mobile Scene

在分簇型无线传感网络中,针对节点密钥易受攻击以及节点的移动性导致密钥管理复杂等问题,基于互斥基底系统提出了一种移动场景下的密钥管理方案。该方案给出了密钥的建立和更新、节点间通信的实现过程。针对节点的移动性,给出了节点离开当前簇和加入新簇的实现过程。仿真实验结果表明:本文提出的方案不但有较低的存储开销,而且有较高的安全连通性和对捕获节点的抵抗性。

In the clustered wireless sensor network,the node key was vulnerable,and the mobility of the node led to the complex key management. Therefore a key management scheme based on exclusion basis system( EBS) in the mobile scenario was proposed.The scheme described the establishment and update of the key,and communication between nodes. For the mobile node,the implementation process of the node leaving the current cluster and joining the new clusters was given. Simulation results show that the proposed scheme not only has lower storage overhead,but also has higher security connectivity and better network resistance to the compromised nodes.