基于区块链的GEO/LEO卫星网络安全认证技术研究  

Research on blockchain-based secure authentication technology for GEO/LEO satellite network

作　　者：李雪晴 邹德财[1,2,4] LI Xue-qing;ZOU De-cai(National Time Service Center,Chinese Academy of Sciences,Xi’an 710600,China;Key Laboratory of Time Reference and Applications,Chinese Academy of Sciences,Xi’an 710600,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing 101408,China)

机构地区：[1]中国科学院国家授时中心,西安710600 [2]时间基准及应用重点实验室(中国科学院),西安710600 [3]中国科学院大学,北京100049 [4]中国科学院大学天文与空间科学学院,北京101408

出　　处：《时间频率学报》2024年第3期219-228,共10页Journal of Time and Frequency

基　　金：军委科技委项目。

摘　　要：由于卫星网络高暴露、高时延的特点,不同系统星座组网进行遥控指令发布及遥测信息回传时,容易受到其他卫星恶意接入导致信息泄露。卫星网络安全认证成为天基测控实现过程中必须解决的技术问题。面向高轨和低轨双层卫星网络场景下的安全组网需求,提出了一种基于区块链的星间组网认证技术,该技术包括基于区块链的卫星身份认证和星间消息认证。研究设计将卫星临时身份登记上区块链,通过比对链上信息完成卫星的身份认证。为进一步增强消息传输安全性,采用椭圆曲线数字签名算法对星间消息进行签名验证。通过仿真分析,验证了所提技术能够以较小的时间开销满足卫星在组网认证阶段的多种安全需求。Since the high exposure and high latency of satellite network,the issuance of telecommand and the transmission of telemetry data by different satellite constellations during networking are vulnerable to information leakage caused by malicious satellite intrusion.Satellite network security authentication has become a technical issue that must be addressed in the process of space-based telemetry,tracking and command.This study proposes a blockchain-based inter-satellite networking authentication scheme for the security networking needs in a double-layer satellite network scenario of geosynchronous earth orbit(GEO)and low earth orbit(LEO),which includes satellite identity authentication and inter-satellite message authentication based on blockchain technology.The research design will register the temporary identity of the satellite on the blockchain,and complete the identity authentication of the satellite by comparing the information on the blockchain.To further improve the security of message transmission,an elliptic curve digital signature algorithm is used to verify the signature of inter-satellite messages.Through simulation analysis,it is verified that the proposed scheme can satisfy the various security requirements of the satellite in the networking authentication stage with less time.

关 键 词：区块链 GEO/LEO卫星网络 身份认证 消息认证 椭圆曲线数字签名算法 

分 类 号：TN927.2[电子电信—通信与信息系统] TP311.13[电子电信—信息与通信工程]