摘要
密钥管理作为传感器网络安全中最为基本的环节,在认证和加密过程中起着至关重要的作用。提出了一种新的混合密钥管理方法。该方案借助于B lom矩阵和混沌序列来完成密钥预分配,使得所有的簇头间、节点间以及节点和它的簇头间都能进行安全通信。分析表明:该方法占用较小密钥存储空间,同时支持网络的拓扑结构的变化,能动态地管理密钥信息,从而解决了密钥泄漏等问题。
As a fundamental requirement for providing security in sensor networks, key management plays an essential role in authentication and encryption. A new hybrid key-management scheme for wireless sensor networks is proposed. Base on the Blom matrix and chaos, this scheme can pre-load some key information to sensors to insure the establishment of secure link. The analysis shows that the scheme can cost lesser key storage overhead and delete and update key information with the network topology changes to avoid key information to be revealed.
出处
《传感器与微系统》
CSCD
北大核心
2009年第2期13-16,22,共5页
Transducer and Microsystem Technologies
关键词
无线传感器网络
混合密钥管理
矩阵
混沌
wireless sensor networks (WSNs)
hybrid key-management
matrix
chaos