卫星内容分发网络安全威胁及安全机制分析  

Analysis of security vulnerabilities and countermeasures of CDN in Satellite Internet

作　　者：刘君[1] 李贺武[1] LIU Jun;LI Hewu(Institute for Network Sciences and Cyberspace,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学网络科学与网络空间研究院,北京100084

出　　处：《网络空间安全科学学报》2024年第4期53-65,共13页Journal of Cybersecurity

基　　金：科技部重点研发项目(2022YFB3105203);自然科学基金委面上基金(62272266);自然科学基金委重点基金(62132009)。

摘　　要：随着卫星互联网技术的发展,卫星内容分发网络(Content Delivery Network,CDN)成为卫星互联网最有潜力的应用场景之一,在提升信息访问体验和缓解地面互联网主干压力方面发挥着重要作用。然而,卫星CDN也面临着一系列安全威胁。通过对不同攻击模型在卫星CDN发生的可能性以及严重程度进行梳理,分析现有安全机制在卫星CDN安全场景适用程度及存在问题。在此基础上,总结卫星CDN安全威胁发生的根源以及可能的技术路径,展望了未来卫星CDN安全的研究方向。With the development of Satellite Internet technology,content delivery network(CDN)with the integrated satellite-ter-restrial environment plays a significant role in enhancing the experience of information access and alleviating the stress on the Internet's backbone.However,CDN in Satellite Internet also faces a series of security vulnerabilities.The vulnerabilities of CDN in Satellite Inter-net were analyzed and the corresponding countermeasures were discussed,delving into the security issues of content distribution in Satellite Internet.Based on this,a series of difficulties to enhance the security mechanism of CDN in Satellite Internet were proposed and the security threats of CDN in Satellite Internet were summarized,providing an outlook for future research directions.

关 键 词：卫星互联网 内容分发网络 安全脆弱性 攻击模型 安全机制 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]