一种基于QR分解增强安全性的DSN密钥配置方案

A Key Management Scheme with Orthogonality Validation for Improving Security of DSN Based on QR Matrix

提出了一种基于矩阵QR分解的分布式传感器网络密钥生成配置方案.在该方案中,节点广播的是标识符和正交Q矩阵的行向量而不是密钥本身,攻击者无法获取明文密钥信息;节点在收到其它节点发送的密钥建立信息后再进行正交性验证,进一步增强了网络的安全性.

Distributed sensor networks （DSN） are emerging as a promising solution for various types of futuristic applications both for military and public. Security in wireless sensor networks is very crucial as these networks are expected mainly to operate in the hazardous and hostile environments. Efficient key management could guarantee authenticity and confidentiality of the data exchanged among the nodes in the network. In this paper, an improved and efficient key pre-distribution scheme is proposed for distributed sensor networks. This scheme significantly increases security level by orthogonality validation base on QR matrix decomposition than that of the present proposed scheme. It also ensures node-to-node mutual authentication in a way that an eavesdropper cannot harm the network by monitoring the traffic flows in the network. At last, detailed performance analysis and comparisons are presented.