无线传感网络加密通信优化算法的研究与仿真

摘要

研究无线传感网络加密通信优化问题.当前无线传感网络的节点分布为随机性强,通过传感器加密和认证.节点间依靠相互通信,完成自身密钥更新.传统算法是通过逐个节点密钥更新完成加密和认证工作,如果节点间的距离较大、会导致节点密钥的更新速度很慢,如果节点密钥长期不更新,会降低网络安全性,增加节点被破译的可能.为了避免上述问题,提出了一种小区域共享密钥的无线传感网络安全通信策略.利用节点的部署和位置信息对节点进行小区域划分,利用小区域内的节点的关系建立共享密钥,单个密钥被破译也不会降低网络的安全性.仿真表明,方法提高了网络的安全性,为无线传感器网络的安全提供了有效的保证.%The wireless sensor network encryption communication algorithm. The current wireless sensor network node distribution for random put on mutual communication between the nodes, complete with their key update, if the distance between the nodes is larger, the traditional algorithm is one key nodes through update is complete encryption work, long distance will lead to the renewal of the key nodes slowly, and if the node is long-term key update, will reduce the network security, increase the node may be interpreted. To avoid this problem, this paper proposes a small regional sharing the wireless sensor network security key communication strategy. Use of nodes deployment and location information to make small division of nodes, USES the small area of the node relationship sharing key, a single key to be interpreted will not reduce the network security. Simulation experiments show that the algorithm enhances the security of network, for wireless sensor network security to provide effective guarantee.