NTNShield: CCSDS SDLS Protocols, 3GPP Satellite Encryption & Quantum-Safe Constellations

NTNShield engineers high-speed, radiation-hardened post-quantum cryptographic link encryptors for Non-Terrestrial Networks (NTN), securing 100 Gbps+ optical inter-satellite links (OISL) and 3GPP satellite radio access against quantum adversaries.

NTNShield System Architecture

Core cryptographic topology and protocol interaction of ntnshield.com

Central System: Space Shield Core - Orbital Encryptor

Cryptographic Nodes

100G Laser ISL
Q/V Feeder Link
CCSDS SDLS PQC
Doppler Sync
Rad-Hard FPGA

Architectural Layers & Protocols

Optical Inter-Satellite Link (OISL) Physical Layer (Coherent 1550nm Laser Terminals with Fine Steering Mirrors): Transmitting terabits of inter-satellite mesh traffic across thousands of kilometers in vacuum
CCSDS Space Data Link Security (SDLS) Post-Quantum Extension (Frame-Level Encryption & Integrity Protection for Telemetry and Telecommand): Securing spacecraft command receivers (TC) and telemetry downlinks (TM) against replay and spoofing
Doppler-Resilient Dynamic Session Re-Keying (Ephemeris-Driven Fast Ephemeral Key Encapsulation): Negotiating fresh session keys during rapid 7.5 km/s orbital passes between satellite and teleport
Radiation-Hardened Space Silicon & Cryptographic Boundary (Space-Grade Rad-Hard FPGAs (Xilinx Virtex-5QV / RTG4 / PolarFire)): Executing constant-time lattice polynomial reduction without single-event latchup or functional interrupt

Key Metrics: 100 Gbps+ (Optical Link Line-Rate) | CCSDS SDLS (Space Data Link Standard) | 100 krad (Total Ionizing Dose (TID)) | <5 µs (Hardware Frame Latency)

Securing Global Satellite Meshes from Space-Based Quantum Surveillance

Satellites broadcast radio signals across continental footprints where adversaries can passively record vast data streams without detection. NTNShield deploys high-throughput lattice encryption directly aboard low Earth orbit spacecraft.

Core Engineering Areas

Securing 100G Laser ISLs — Pipelined AES-256-GCM and ChaCha20 streaming engines re-keyed via ML-KEM in vacuum.
CCSDS SDLS PQC Standards — Formatting extended security headers (ESH) and authenticating spacecraft telecommands.
Radiation-Hardening Lattice Chips — Protecting polynomial coefficient memory registers against radiation-induced bit flips in LEO.

Technical Articles

Related Cluster Architecture Specifications

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