基于双混沌映射的密钥预分配方案  

Key Pre-distribution Scheme Based on Double Chaotic Map

作　　者：王培东[1] 丛轶姝[1] 梁丽丽[1] 

机构地区：[1]哈尔滨理工大学计算机科学与技术学院,哈尔滨150080

出　　处：《计算机工程》2011年第18期160-163,166,共5页Computer Engineering

摘　　要：现有无线传感器网络中密钥管理方案无法同时获取理想的网络安全连通性和网络抗毁性。针对该问题,提出一种基于双混沌映射的密钥预分配方案,利用混沌映射产生具有良好随机性和自相关性能的混沌序列形成密钥池,仅需向节点预分发数量较少的密钥标识,就能够以较高的概率建立密钥连接。改进节点会话密钥的生成方式,降低密钥被破译的可能性。理论分析和模拟实验证明,该方案具备较高的网络连通性和抵制俘获攻击的能力。In accordance with the existing problem that the random key pre-distribution scheme of wireless sensor network can not acquire the high network connectivity probability and reach strong resilience against the nodes compromise simultaneously,a novel key pre-distribution scheme based on double chaotic map is proposed.In the scheme,the chaotic map is introduced to generate the chaos sequence with good randomness and self-correlation property.Nodes only need to preload a few ID keys in the pool and can establish pair-wise keys amongst all the sensor nodes with high probability.In addition,this scheme improves the method to generate the session key,reduces the probability of the key being cracked.The theoretical analysis and simulation experiments show that the whole network can afford the best security to the node capture attack and perform good ability in network connectivity.

关 键 词：无线传感器网络 密钥预分配 双混沌映射 混沌序列 密钥池 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]