Mäurer, Nils and Gräupl, Thomas and Gentsch, Christoph and Schmitt, Corinna (2020) Comparing Different Diffie-Hellman Key Exchange Flavors for LDACS. In: 39th Digital Avionics Systems Conference (DASC). IEEE. 39th Digital Avionics Systems Conference (DASC), 11.-15. Oct. 2020, Virtual.
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Abstract
Growth of civil air traffic worldwide poses a great challenge for the supporting Communication, Navigation and Surveillance (CNS) infrastructure. Analogue systems have to be replaced by digital means to optimize spectrum efficiency and automation is becoming much more important to be able to handle the amount of participants in the air traffic system. As safety and security are strongly intertwined in aviation, cybersecurity is one key enabler for digitalization in civil aviation. As such we investigate mutual authentication and key agreement methods for the digital aeronautical ground-based communications system LDACS. Thereby, we compare the suitability of three different Diffie-Hellman key exchange flavors - Ephemeral Diffie-Hellman (DHKE), Elliptic Curve Diffie-Hellman (ECDH), Supersingular Isogeny Diffie-Hellman (SIDH) -, used in the STS protocol, for digital aeronautical communication in terms of latency and security data overhead. We conclude, the STS protocol based on a centralpublic-key infrastructure (PKI) based trust solution with SIDH for post-quantum security to be best suited for long term security. However, due to the smaller key sizes, ECDH is the more resource efficient candidate and may play a role in low resource authentication scenarios for LDACS.
Item URL in elib: | https://elib.dlr.de/136814/ | |||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | |||||||||||||||
Title: | Comparing Different Diffie-Hellman Key Exchange Flavors for LDACS | |||||||||||||||
Authors: |
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Date: | October 2020 | |||||||||||||||
Journal or Publication Title: | 39th Digital Avionics Systems Conference (DASC) | |||||||||||||||
Refereed publication: | No | |||||||||||||||
Open Access: | Yes | |||||||||||||||
Gold Open Access: | No | |||||||||||||||
In SCOPUS: | No | |||||||||||||||
In ISI Web of Science: | No | |||||||||||||||
Publisher: | IEEE | |||||||||||||||
Status: | Published | |||||||||||||||
Keywords: | Cybersecurity, LDACS, Authenticated Key Exchange, Station-To-Station (STS) | |||||||||||||||
Event Title: | 39th Digital Avionics Systems Conference (DASC) | |||||||||||||||
Event Location: | Virtual | |||||||||||||||
Event Type: | international Conference | |||||||||||||||
Event Dates: | 11.-15. Oct. 2020 | |||||||||||||||
Organizer: | AIAA, IEEE | |||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||
HGF - Program: | Aeronautics | |||||||||||||||
HGF - Program Themes: | air traffic management and operations | |||||||||||||||
DLR - Research area: | Aeronautics | |||||||||||||||
DLR - Program: | L AO - Air Traffic Management and Operation | |||||||||||||||
DLR - Research theme (Project): | L - Communication, Navigation and Surveillance (old) | |||||||||||||||
Location: | Oberpfaffenhofen | |||||||||||||||
Institutes and Institutions: | Institute of Communication and Navigation Institute of Communication and Navigation > Communications Systems Institute of Data Science > Secure Digital Systems | |||||||||||||||
Deposited By: | Mäurer, Nils | |||||||||||||||
Deposited On: | 26 Oct 2020 09:17 | |||||||||||||||
Last Modified: | 26 Oct 2020 09:17 |
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