基于多项式异构无线传感器网络密钥预分配方案  

A Key Predistribution Scheme Based on Polynomial for HWSN

作　　者：马春光[1] 耿贵宁 王慧强[1] 尚治国[1] 

机构地区：[1]哈尔滨工程大学计算机科学与技术学院

出　　处：《武汉大学学报（信息科学版）》2008年第10期1022-1025,共4页Geomatics and Information Science of Wuhan University

基　　金：国家自然科学基金资助项目(90718003);国家863计划资助项目(2007AA01Z401);黑龙江省博士后科研启动基金资助项目(LBH-Z06027);哈尔滨工程大学基础研究基金资助项目(HEUFT05067)

摘　　要：针对现有随机密钥预分配方案中不同节点间能够建立相同共享密钥的不足,提出了一种基于多项式的异构无线传感器网络密钥预分配方案。从网络连通性、节点内存需求和安全性等方面对方案进行性能评价和模拟仿真。结果表明,本方案能够有效地提高网络的连通性,减小节点所需的存储空间,并增强网络抗攻击能力。Key management is one of the most challenging security problems in wireless sensor networks. Most of the existing key management schemes is supposed used in homogeneous wireless sensor networks in which all the sensor nodes have the same structure and capability. But the homogeneous wireless sensor network does not good at improving the network＇s life time as well as connectivity. Since there are some different nodes that can establish the same pairwise key between them in some random key pre-distribution schemes, a key management scheme is proposed based on polynomial for heterogeneous wireless sensor networks （HWSN）. From the simulations, it is clear that the key management scheme proposed can substantially improve the network connectivity with low storage requirement and enhance the network security level.

关 键 词：异构无线传感器网络 密钥管理 密钥预分配 T度多项式 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]