
Double Feature at the Orangerie
Section: Arts
In response to a suspicious disruption in satellite navigation experienced during a flight carrying Ursula von der Leyen, President of the European Commission, the European Union is evaluating measures to enhance the security of its navigation systems. Andrius Kubilius, the EU Commissioner responsible for space and defense, announced plans to increase the number of satellites operating in low Earth orbit (LEO) to bolster the resilience of the Galileo navigation system and improve the detection of disruptions.
Von der Leyen's aircraft faced significant GPS navigation interference while approaching Plovdiv, Bulgaria. The pilots were compelled to rely on traditional maps for landing, indicating a deliberate attempt to disrupt the navigation signals, with security experts suggesting potential involvement from Russian actors.
Kubilius emphasized the detrimental impact of jamming and spoofing on air, sea, and transportation sectors. Jamming involves the interference of frequencies used by satellites, while spoofing entails the transmission of counterfeit signals. To combat these threats, the Galileo system now offers an authentication service designed to detect spoofing attempts.
Recently, the Open Service Navigation Message Authentication (OSNMA) was officially launched, marking a significant milestone as the first system of its kind available to civilian users. OSNMA enhances standard navigation data with a form of digital signature that verifies the authenticity of the signals originating from the Galileo satellite network.
The underlying technology employs the TESLA protocol, which has been adapted for satellite communication. A key feature of this system is its delayed authentication process. Initially, the Galileo satellites send encrypted navigation data, while the corresponding decryption keys are transmitted afterward, typically within a timeframe of 30 to 300 seconds. This delay complicates the efforts of potential attackers, who would need to breach the encryption before the keys are made available, essentially making real-time spoofing extremely challenging.
Furthermore, the introduction of LEO satellites is a strategic move aimed at mitigating navigation signal disruptions. These satellites, operating at lower altitudes, experience reduced signal loss and enhanced signal strength compared to those in medium or high orbits. In addition to improving navigation accuracy, they can provide corrective data and integrity information that obstruct third-party interference, while also improving coverage in polar regions.
Section: Arts
Section: Arts
Section: Business
Section: News
Section: Business
Section: Arts
Section: Arts
Section: News
Section: Arts
Section: Arts
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