Galileo Signal Authentication Service (SAS)

This paper presents for the first time the full specification of the Galileo Signal Authentication Service (SAS), formerly known as Assisted Commercial Authentication Service (ACAS). It includes a general description of the concept and a detailed description of the service, with focus on the ground interfaces and cryptographic operations, and with the aim of helping developers to test SAS receiving prototypes in view of the forthcoming SAS early testing phase. The paper also summarizes some of the field and lab testing results obtained so far and outlines some recommendations for future SAS receivers.

Authors

Publication Details

Journal
Proceedings of the Satellite Division's International Technical Meeting (Online)/Proceedings of the Satellite Division's International Technical Meeting (CD-ROM)
Published
2024-10-09
DOI
https://doi.org/10.33012/2024.19707
Citations
7
Primary Topic
Ionosphere and magnetosphere dynamics
Type
article
Field-Weighted Citation Impact
2.32
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Galileo Signal Authentication Service (SAS)

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7 citations
Proceedings of the Satellite Division's International Technical Meeting (Online)/Proceedings of the Satellite Division's International Technical Meeting (CD-ROM)
Ionosphere and magnetosphere dynamics
2.32
article

Galileo Signal Authentication Service (SAS)

Javier de Blas, Gianluca Caparra, Ignacio Fernández‐Hernández, Cillian O’Driscoll, José A. López-Salcedo, Béatrice Motella, J. Winkel, Rafael Terris-Gallego, Daniel Blonski, Gonzalo Seco‐Granados, Tom Willems
article en
7 citations

Abstract

This paper presents for the first time the full specification of the Galileo Signal Authentication Service (SAS), formerly known as Assisted Commercial Authentication Service (ACAS). It includes a general description of the concept and a detailed description of the service, with focus on the ground interfaces and cryptographic operations, and with the aim of helping developers to test SAS receiving prototypes in view of the forthcoming SAS early testing phase. The paper also summarizes some of the field and lab testing results obtained so far and outlines some recommendations for future SAS receivers.

Proceedings of the Satellite Division's International Technical Meeting (Online)/Proceedings of the Satellite Division's International Technical Meeting (CD-ROM)
Openalex Percentile: Top 12%
Ionosphere and magnetosphere dynamics
2.32
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