一种适用于无线传感器网络的密钥管理策略  

A Key Management Strategy for Wireless Sensor Networks

作　　者：华春 廖小平 侯翔 HUA Chun;LIAO Xiaoping;HOU Xiang(College of Intelligent Manufacturing,Dazhou Key Laboratory of government datasecurity,Sichuan Institute of Arts and Science,Dazhou 635000,China)

机构地区：[1]四川文理学院智能制造学院/政务数据安全达州市重点实验室,四川达州635000

出　　处：《成都信息工程大学学报》2023年第4期429-435,共7页Journal of Chengdu University of Information Technology

基　　金：政务数据安全达州市重点实验室2022年度开发基金项目(ZSAQ202212、ZSAQ202203)。

摘　　要：随着信息技术的快速发展,数据安全的重要性愈发凸显,作为数据保护的有效手段,现代数据加密技术在计算机网络中得到了广泛应用,其中密钥分发对密钥保护体系有着举足轻重的作用。在无线传感器网络中,由于节点能量有限,计算能力偏低等诸多限制条件,导致传统的基于非对称密钥的密钥分发策略难以直接应用。设计了一种适用于无线传感器网络的密钥管理策略,借鉴零信任网络思想,采用对称加密技术进行密钥分发,能够减少运算复杂性,降低传感器节点的能量消耗,同时引用了信任系数动态调整机制,可以根据无线传感器网络状况动态调整密钥更新周期,进一步降低能耗,具有一定的应用价值。With the rapid development of information technology,the importance of data security is becoming more and more prominent.As an effective means of data protection,modern data encryption technology has been widely used in computer networks,among which key distribution plays an important role in key protection system.In wireless sensor networks,the traditional key distribution strategy based on asymmetric key is difficult to be applied directly due to many restrictions,such as limited node energy and low computing ability.This paper proposes a key management strategy suit-able for wireless sensor networks.Learning from the idea of zero trust network and using symmetric encryption technology for key distribution,it can reduce the computational complexity and reduce the energy consumption of sensor nodes.At the same time,a dynamic adjustment mechanism of trust coefficient is proposed in this paper,which can dynamically adjust the key update cycle according to the status of wireless sensor networks and further reduce the energy consump-tion,it is of certain application value to data security.

关 键 词：无线传感器网络 零信任网络 密钥分发 密钥更新 动态调整 

分 类 号：TN918.91[电子电信—通信与信息系统]