# GNSS Jamming and Spoofing, aka Galileo's Authentication Algorithm Part 3

DevFeed: [GNSS Jamming and Spoofing, aka Galileo's Authentication Algorithm Part 3](<https://devfeed.tech/articles/gnss-jamming-and-spoofing-aka-galileo-s-authentication-algorithm-part-3-36407.md>)

Original publisher: [Read original article](<https://berthub.eu/articles/posts/galileos-authentication-algorithm-part-3/>)

Published: 2020-09-13T09:49:53Z

Content type: tutorial

Language: en

Sources: [Bert Hubert's writings](<https://devfeed.tech/sources/bert-hubert-s-writings.md>)

Topics: [spoofing](<https://devfeed.tech/topics/spoofing.md>), [Authentication](<https://devfeed.tech/topics/authentication.md>), [Protocol (disambiguation)](<https://devfeed.tech/topics/protocol.md>), [navigation](<https://devfeed.tech/topics/navigation.md>), [Resilience](<https://devfeed.tech/topics/resilience.md>)

Tags: [aviation](<https://devfeed.tech/tags/aviation.md>), [gnss](<https://devfeed.tech/tags/gnss.md>), [gps](<https://devfeed.tech/tags/gps.md>), [navigation](<https://devfeed.tech/tags/navigation.md>), [protocol](<https://devfeed.tech/tags/protocol.md>), [resilience](<https://devfeed.tech/tags/resilience.md>), [spoofing](<https://devfeed.tech/tags/spoofing.md>)

## AI overview

Part 3 of a series on OSNMA, the proposed Galileo Navigation Message Authentication protocol, explaining GNSS jamming and spoofing, the threat model, and related detection and mitigation concerns.

## Source excerpt

Welcome to part 3 of my series on OSNMA, the proposed Galileo Navigation Message Authentication protocol. This part can be read independently from part 1 and part 2, but it might be useful to read the introduction to part 1. This post attempts to explain GPS (GNSS) jamming and spoofing, so it might be a useful read even if you don't care about Galileo or its authentication. As usual, I've been helped tremendously by Daniel Estévez & many other researchers and Galileo professionals, and again I am very greatful for all the links, corrections, suggestions and knowledge you provided.