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Quantum-Secure Satellite Telecoms: LEO Networks and Ground Segment Security

Securing LEO satellite networks, ground segment communications, and inter-satellite links with quantum-safe protocols.

Full day (6 hours)

Certificate on completion

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Course Overview

For satellite telecoms engineers, ground segment architects, and constellation security teams. Covers PQC migration for ground-to-satellite command links, LEO constellation key management at scale, inter-satellite link encryption, dual CCSDS/3GPP NTN standards navigation, and ground segment security for gateway earth stations.

Curriculum

Course content is structured into sessions below. Each session is configurable to your organisation's environment, threat model, and objectives.

#	Session	Topics
1	Satellite Telecoms Cryptographic Architecture How LEO and GEO satellite communication systems depend on classical cryptography today
2	PQC for Satellite Command, Telemetry, and User Data Links Migrating ground-to-satellite and inter-satellite cryptography to post-quantum algorithms	Ground-to-satellite command link security: replacing ECDSA command authentication with ML-DSA (FIPS 204) within CCSDS SDLS and DVB-S2/S2X security extensions Telemetry and user data encryption: PQC key encapsulation with ML-KEM (FIPS 203) for bulk data protection on Ka-band and V-band downlinks Inter-satellite link (ISL) security: optical ISL encryption for LEO mega-constellations (Starlink, OneWeb, Kuiper) and the key distribution challenge across mesh topologies
Break
3	LEO Constellation Security Architecture Quantum security challenges specific to mega-constellation operators	Constellation key management at scale: distributing and rotating cryptographic keys across hundreds to thousands of satellites with limited contact windows Ground segment security: protecting gateway earth stations, network operations centres, and the terrestrial backhaul connecting satellite capacity to mobile and fixed networks Handover and roaming security: maintaining cryptographic continuity during beam handovers and inter-satellite routing changes in non-geostationary systems
4	Interactive Demonstration: Satellite Telecoms PQC Migration Analysis Full-day format only	Modelling ML-KEM key exchange overhead on a reference LEO constellation user terminal link at Ka-band data rates Bandwidth impact analysis: PQC ciphertext expansion on DVB-S2X frames and CCSDS transfer frames at typical satellite broadband throughputs Comparing hybrid ECDH+ML-KEM versus pure ML-KEM approaches for backward compatibility with legacy user terminals and gateway equipment
Break
5	Dual Standards Framework: CCSDS and 3GPP NTN Navigating overlapping standards for satellite telecommunications	CCSDS Space Data Link Security (SDLS): current PQC standardisation timeline and integration points for satellite operators providing telecoms capacity 3GPP Non-Terrestrial Networks (NTN) in Release 17/18: how satellite integration into 5G introduces 3GPP security requirements alongside CCSDS Regulatory overlay: NIS2 Directive applicability to satellite telecoms providers, ETSI EN 303 645 alignment, and national telecoms security legislation
6	Vendor Landscape and Procurement Guidance Independent assessment of satellite telecoms PQC readiness	Satellite platform vendors: Airbus Defence and Space, Thales Alenia Space, Lockheed Martin, Boeing PQC integration roadmaps for payload and bus cryptographic modules Ground segment vendors: iDirect, Newtec (ST Engineering), Hughes, Gilat PQC readiness for satellite modems and gateway equipment Crypto-agility requirements: specifying software-defined cryptographic modules for algorithm replacement without hardware change across the 15 to 25 year satellite lifecycle
7	Q&A and Programme Planning

Designed and Delivered By

Training courses are designed and delivered by QSECDEF in collaboration with subject specialists. All instructors have direct experience in quantum technologies and security.

QSECDEF brings expertise in post-quantum cryptography, quantum computing strategy, and defence-grade security assessment. Our membership spans 900+ organisations and 1,500+ professionals working at the intersection of quantum technologies and critical infrastructure security.

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Quantum-Secure Satellite Telecoms: LEO Networks and Ground Segment Security

Course Overview

Curriculum

Designed and Delivered By

Quantum Security Defence

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