Workshops Telecommunications Quantum-Secure Satellite Telecoms
Telecommunications Full Day or Half Day Workshop

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

This workshop equips satellite telecoms engineers with practical quantum security strategies for LEO constellation operations, ground segment infrastructure, and the transition to post-quantum cryptography across space and terrestrial network segments.

Full day (6 hours) or half day
In person or online
Max 30 delegates

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Eclypses
Arqit
QuantBond
Krown
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Quantum Bitcoin
Venari Security
QuStream
BHO Legal
Census
QSP
IDQ
Patero
Entopya
Belden
Atlant3D
Zenith Studio
Qudef
Aries Partners
GQI
Upperside Conferences
Austrade
Arrise Innovations
CyberRST
Triarii Research
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Xyberteq
Viavi
Entrust
Qsentinel
Nokia
Gopher Security
Quside

Workshop Description

Covers quantum security for LEO and GEO satellite communication systems providing telecoms capacity, including PQC for ground-to-satellite command links, user data encryption on Ka-band and V-band downlinks, inter-satellite link security for mega-constellations, and ground segment protection for gateway earth stations and network operations centres. Addresses the dual standards challenge of CCSDS SDLS and 3GPP NTN, constellation-scale key management, and crypto-agility across the satellite lifecycle.

Satellite telecoms sits at the intersection of space systems engineering and terrestrial telecommunications regulation. LEO mega-constellations (Starlink, OneWeb, Kuiper, Telesat Lightspeed) are integrating into 5G networks via 3GPP Non-Terrestrial Networks standards, which means they inherit both CCSDS space security requirements and 3GPP security obligations simultaneously. The ground segment connects these two worlds: gateway earth stations terminate satellite links and hand off traffic to terrestrial networks, creating a cryptographic boundary that must be secured in both directions. Satellites launched today with 7 to 15 year lifetimes will operate well into the era when cryptographically relevant quantum computers are expected. The command uplink is the highest priority migration target because a compromised command link allows an adversary to control the spacecraft. This workshop addresses the full security chain from satellite bus through ISL mesh through ground segment to terrestrial handoff, with specific attention to the PQC performance constraints imposed by satellite hardware and bandwidth-constrained links.

What participants cover

  • Satellite command link PQC migration: replacing ECDSA with ML-DSA for command authentication within CCSDS SDLS and DVB-S2/S2X security frameworks
  • LEO constellation key management: distributing and rotating keys across hundreds of satellites with limited ground contact windows
  • Inter-satellite link encryption: securing optical ISL mesh networks in mega-constellations and the key distribution challenge across dynamic topologies
  • Ground segment security: protecting gateway earth stations, NOCs, and the terrestrial backhaul connecting satellite capacity to mobile and fixed networks
  • Dual standards navigation: managing overlapping CCSDS SDLS and 3GPP NTN (Release 17/18) security requirements for satellite telecoms providers
  • Vendor readiness: independent assessment of satellite platform, ground segment, and user terminal vendor PQC integration roadmaps

Preliminary Agenda

Full-day session structure with scheduled breaks. Content is configurable to your constellation architecture, ground segment topology, and regulatory obligations.

# 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, after 50 min
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, after 60 min
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 hub 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

Workshops are designed and delivered by QSECDEF in collaboration with sector specialists. All facilitators have direct experience in both quantum technologies and telecommunications systems.

QD

Quantum Security Defence

Workshop design and delivery

QSECDEF brings world-leading expertise in post-quantum cryptography, quantum computing strategy, and defence-grade security assessment. Our advisory membership spans 600+ organisations and 1,200+ professionals working at the intersection of quantum technologies and critical infrastructure security.

TE

Telecommunications Partners

Domain expertise and operational validation

Telecommunications workshops are co-delivered with sector specialists who bring direct operational experience in telecommunications organisations. This ensures workshop content is grounded in regulatory, operational, and technical realities specific to the sector.

Commission This Workshop

Sessions are configured around your constellation architecture, ground segment topology, standards obligations, and PQC migration timeline. Get in touch to discuss requirements and schedule a date.

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