无线传感器网络中基于超立方体的对密钥建立方案研究

Research on Pairwise Key Establishment Scheme Based on Hypercube in Wireless Sensor Network

无线传感器网络通常应用于敏感环境下,安全问题成为传感器网络的主要挑战之一。由于传感器网络节点的资源受限等特点,当传感器网络节点被捕获时,传感器网络能否保持较高的连通性和抗毁性成为传感器网络安全问题中的巨大挑战。为了解决此问题,文章提出了一种无线传感器网络中基于超立方体的对密钥建立方案。利用超立方体对传感器节点进行编码,密钥分发中心根据节点编码选择要分发给节点的双变量多项式,并利用节点编码计算出多项式份额发送给传感器节点。性能分析表明,当节点之间没有对密钥时,利用文章方案中的路径密钥方式建立的对密钥连通性好,网络具有较强的抗毁性,极大节省了传感器节点的能量。

Wireless sensor networks are usually used in sensitive environments, and security issue has become one of the challenges in sensor networks. Due to the resource constraint on sensor network nodes, whether sensor networks can maintain high connectivity and invulnerability becomes a huge challenge in sensor network security issues when sensor network nodes are captured. To address this issue, this paper proposes a pairwise key establishment scheme based on hypercube. The IDs of the nodes in sensor networks are coded by hypercube, and the key distribution center computes the bivariate polynomials with the ID of each node which are sent to each node. Performance analysis shows if there is no pairwise key between two nodes, the connectivity of pairwise key established by the path key method in the scheme is good, and the network has strong invulnerability, which greatly save the energy of sensor nodes.