【摘要】 提出了一种基于LU矩阵分解的密钥管理方案。该方案借助于LU矩阵来完成密钥预分配,使得所有的簇头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变化,能动态地管理密钥信息,从而解决了密钥泄露等问题。更多还原

【Abstract】 This paper proposed a new key-management scheme for wireless sensor networks.Based on the LU matrix,this scheme could 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 can delete and update key information with the network topology changes to avoid key information to be revealed.更多还原