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基于双哈希函数的WSN密钥预分配方案

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摘要 无线传感器网络经常部署在无人值守和易受攻击的环境中,几乎没有维护条件,这使得攻击者可以进行拆卸和窃取等物理攻击,从而破坏节点和整个网络的安全性。针对现有的无线传感器网络密钥预分配方案存在安全性较低、网络连通率不高等问题,提出一种基于双向哈希函数的密钥预分配方案(key predistribution scheme based on two-way hash,KPSTH),通过构造密钥矩阵和哈希函数的单向性质降低密钥破解概率,对单跳路由范围内无法建立连接的节点通过中间节点密钥协商扩大了邻居范围,提高了本地节点安全连通概率和节点抗俘获能力,并进行了理论分析和实验仿真。结果表明,所提出的方案具有较高网络抗毁性的同时拥有更高的全局网络连通率,且能耗方面也有良好表现。
作者 曹勇 CAO Yong
出处 《信息技术与信息化》 2023年第11期78-84,共7页 Information Technology and Informatization
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