The System: a network built for sovereignty
Solution
One network, keys guaranteed by physics
A proposed sovereign space-to-ground quantum key fabric, built in two segments.
Defence in depth: QKD where quantum links exist, post-quantum crypto everywhere else. One auditable key fabric, quantum-safe from day one.
Payload-class hardware, not lab benches: compact optical terminals sized for small LEO satellites.
Architecture
Space-to-ground key delivery, end to end
As you scroll, follow a quantum key from orbit to the endpoints that consume it.
Stage 01
Satellite
A compact LEO payload generates entangled photon pairs. It never holds the key, so it never has to be trusted.
Stage 02
Quantum photon
Single photons carry the key downward. Any interception disturbs them and is detected, so eavesdropping announces itself.
Stage 03
Optical ground station
AI-driven pointing, pass scheduling and cloud-cover prediction maximise key yield through the atmosphere.
Stage 04
Fiber backbone
Metro fibre QKD rings on MDI-QKD links distribute keys across cities, closing detector side-channels.
Stage 05
End users
Defence, finance, grid and government endpoints draw keys from one auditable fabric.
No trusted satellite
Entanglement-based links mean the satellite never holds the key, so there is nothing on board to steal.
Graceful degradation
Clouds or jamming never break security, because post-quantum cryptography carries the fabric when quantum links drop.
Every key audited
QBER, origin link and consumption are logged end-to-end for certification and accountability.
Pillars
Built to leapfrog, not to copy
Entanglement-based QKD
Keys born from entangled photon pairs. The satellite never knows the key, so there is nothing on board to steal.
MDI-QKD ground links
Measurement-device-independent protocol closes detector side-channels and slashes the trusted-relay count.
AI-run operations
Our AI heritage applied to optics: cloud-cover prediction, pass scheduling and beacon pointing maximise key yield.
Hybrid PQC fallback
NIST post-quantum algorithms (ML-KEM, ML-DSA) keep every endpoint quantum-safe even where no quantum link exists yet.
Indigenous & auditable
Protocols, firmware and key management designed and reviewed in India, with no imported black boxes in the trust chain.
Audit-ready telemetry
Per-key provenance, with QBER, source link and consumption logged for certification and accountability.
Physics-guaranteed keys · quantum-safe from day one · sovereign by design.
Roadmap
From simulator to sovereign space link
Simulator and emulated testbed
Quantum-network simulator and emulated QKD testbed; protocol stack and hybrid key-management layer validated against real channel models.
Risk retired · Validates protocols before hardware spend.
Every phase ships usable security: the post-quantum fabric protects users from month one; quantum links layer physics on top as they come online.
Use Cases
Who needs unbreakable keys first
Strategic defence comms
Quantum-secure links between commands, bases and forward assets, immune to harvest-now-decrypt-later.
Financial backbone
Inter-bank settlement and central-bank channels with physics-backed keys. China already protects its banks this way.
Power grid & SCADA
Grid-control traffic secured against state-level interception, replay and spoofing of critical commands.
Government sovereignty
Embassy, identity and election-data channels with verifiable, indigenous key custody.
One network, many customers: the same keys that protect a squadron protect a settlement system.