摘要
为了保证无线传感器网络监测到的数据在传输过程中不会被非法窃听、篡改和破坏,提出了基于分簇结构的无线传感器网络的动态混合密钥管理方案,每个簇头随机生成子密钥矩阵,簇头利用动态基密钥为每个成员节点分配互不相同的单向通信密钥;相邻簇头的子密钥矩阵的重叠部作为生成对密钥的基密钥;当簇头的剩余能量低于设定门限值或被捕获时,需重新产生簇头,并动态生成新的子密钥矩阵,实现密钥的动态更新,DHKM方案能适应网络拓扑的变化,对新节点加入的处理比较简单,该方案具有较好的安全性和扩展性,减少了节点的存储空间。
In order to protect the sensing data not to be illegally eavesdropped,tampered and destroyed,a dynamic and hy-brid key management scheme based on clustering structure for wireless sensor networks is proposed in this paper. Each cluster head randomly generates sub-key matrix. The cluster head assigns different one-way communication key to each node by using dynamic base key. The overlapping section of sub-key matrix of adjacent cluster is regarded as the base key which generates the pair-key. When the remaining energy of the head is lower than threshold or is captured,it is needed to generate a new cluster head,and the new sub-key matrix will be generated to achieve dynamic key updating. Compared with the existing protocols,DH-KM scheme supports network topology changing,and is easy to process the new node addition. The scheme has better security and good scalability,and can save storage spaceof the nodes.
出处
《现代电子技术》
2013年第21期78-82,共5页
Modern Electronics Technique
基金
国家自然科学基金(61174013)
江苏省"六大人才高峰项目"(DZXX.055)
关键词
无线传感器网络
分簇
网络安全
密钥管理
基密钥
wireless sensor network
clustering
network security
key management
base key
