一种基于量子密码的卫星网络窃听攻击检测方法

鉴于窃听攻击是对卫星网络实施各类高级攻击行为的基础,结合量子密码在未来卫星网络的应用趋势,提出了一种基于量子密码的卫星网络窃听攻击检测方法。首先,基于卫星网络节点在空间分布上的分层特点,构建了层簇式的卫星网络窃听攻击检测模型。实际检测过程中,相邻卫星节点检测到窃听攻击威胁时,将相关预警信息经簇首节点融合后通过安全信道传送到地面控制中心,随后再根据地面控制中心反馈的安全链路构建方案构建节点间的安全通信链路。最后,对方案的安全性及有效性进行了分析。相关成果可为进一步深入开展卫星网络安全防护技术研究打下一定的基础。

Method for Detecting Wiretapping Attack in Satellite Network Based on Quantum Cryptography

The wiretapping attack is the foundation of many advanced attacks on satellite network.Since quantum cryptography will be widely used in satellite network,a method for detecting wiretapping attack in satellite network based on quantum cryptography was proposed.Based on the spatial distributions of the satellites,a layered and clustering wiretapping attack detection model was presented at first.During the process of wiretapping attack detection,when the neighboring satellites detect a wiretapping attack in their channel,the corresponding alarm messages will be first sent to the head node of their cluster through secure channels.At the same time,the corresponding alarm messages will be further fused and sent to the ground control center by the head node.The secure link of two satellites will be established according to the secure link establishing scheme from the ground control center.Eventually,the security and the effectiveness of the proposed method were analyzed.The proposed method can lay a foundation for further research on the techniques of satellite network protection.