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Open GNSS signal authentication based on the Galileo Commercial Service (CS)

机译:基于Galileo商业服务(CS)的开放式GNSS信号认证

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GNSS authentication demand has been rapidly increasingin the last years, and the lack of system and signalsproviding embedded authentication led the developmentof receiver based solution or heuristic techniques to detectcounterfeited signals. The opportunity of navigation dataauthentication has been considered in the last years, butstill leaves a number of unresolved problems for makingit a robust authentication technique, and vulnerabilitieshave been discussed. The Galileo Commercial Servicerepresents an unexplored opportunity for GNSS signalauthentication, providing full ranging code encryptionaccess for commercial and civilian applications, withpotential access to encryption keys on a fee basis whenthe system will be operational. It offers what can bedefined robust authentication by leveraging theunpredictability characteristic of the signal whentravelling in space and by preserving its secrecy andintegrity when acquired, being invisible below thereceiver thermal noise. A counter side of encryptedservices is the cost and complexity of receivers, whichmight limit the commercial exploitation of authenticationsolutions for a number of mass markets. This work, whichis part of the activities developed within the EuropeanGNSS Agency (GSA) STON (Secure Technologies basedOn location) project, presents an innovative approach forperforming signal authentication of E1 signals with theGalileo CS signal, reducing the receiver cost to theminimum. The E6 CS signal is acquired together with theE1 untrusted PVT data on a hardware token, and anauthentication server with access to the CS keys processesthem remotely to verify the consistency. This paperpresents the high-level architecture, the authenticationalgorithms and the preliminary results.
机译:GNSS身份验证需求一直在迅速增长 在过去的几年中,缺乏系统和信号 提供嵌入式身份验证带动了开发 基于接收方的解决方案或启发式技术进行检测 伪造的信号。导航数据的机会 最近几年已经考虑过身份验证,但是 仍然留下了许多未解决的问题 它是一种强大的身份验证技术,并且存在漏洞 已经讨论过了。伽利略商业服务 代表了GNSS信号的未开发机会 身份验证,提供全面的代码加密 商业和民用应用的访问权限, 可能在收费的情况下潜在地访问加密密钥 系统将运行。它提供了可以 通过利用 信号的不可预测特性 在太空旅行并保持其秘密性, 被收购时的完整性,在 接收器热噪声。加密的反面 服务是接收机的成本和复杂性, 可能会限制身份验证的商业开发 适用于许多大众市场的解决方案。这项工作, 是欧洲内部开发活动的一部分 GNSS机构(GSA)STON(基于安全技术 现场)项目,提出了一种创新的方法 使用以下命令执行E1信号的信号验证 伽利略CS信号,降低了接收器的成本 最低限度。 E6 CS信号与 硬件令牌上的E1不受信任的PVT数据,以及 可以访问CS密钥进程的身份验证服务器 远程验证它们的一致性。这篇报告 提出高层架构,认证 算法和初步结果。

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