Leading NGFW & QNu Labs Quantum-Safe Secure Communication Solution

Challenge

Classical key exchange won't survive the quantum era.

Adversaries capture encrypted traffic today and store it, waiting for quantum computers to break it later. NIST has set a 2030 compliance deadline, and migration takes one to two years.

Key Challenges

• The threat is already active
  This is Harvest Now, Decrypt Later (HNDL) risk. Quantum computers will break today's encryption standards, exposing any long-lived sensitive communication.
• Traditional key exchange is the exposure
  Site-to-site Secure Communications and firewall-tofirewall tunnels rely on classical key exchange. Once quantum computers mature, that exchange method is broken.
• Extending protection has meant rearchitecting
  Protecting a few high-value links has historically meant redesigning the surrounding network. Enterprises need quantum-safe protection without disrupting what already runs.

Solution

Your firewall requests a key. Quantum physics supplies it.

QNu Labs QKDN distributes quantum-derived symmetric key material to a leading NextGeneration Firewall (NGFW) platform over the ETSI GS QKD 014 interface.

The existing security architecture stays as it is.

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Deployment and Validation

How it works

• Network orchestration
  QKDN functions as network orchestrator, creating largescale Quantum Key Distribution networks across metro and wide area networks.
• Key distribution
  QKDN generates and distributes quantum-derived symmetric key material to the NGFW platform using the ETSI GS QKD 014 interface.
• Secure Communication establishment
  Each firewall retrieves its assigned key material from the local QKD node. Key identifiers are exchanged between peers to establish shared context.
• Architecture preserved
  This approach preserves the existing NGFW security architecture while adding a physics-based layer of protection.

Built on ETSI and ITU standards.

Outcome

Five outcomes from one integration

• Crypto-agility through open standards
  Integration runs over ETSI and ITU interfaces, not a proprietary coupling between two vendors.
• Scale beyond a single pair of sites
  Trusted-node and multi-hop deployments extend quantum-secure communications across many locations.
• Readiness for emerging requirements
  Positions critical infrastructure ahead of the postquantum cybersecurity requirements now being drafted.
• No change to the existing security architecture
  Existing site-to-site IPsec Secure Communications are secured in place. The existing NGFW security architecture is fully preserved.
• Quantum-generated keys on high-value links
  Protect the communications that warrant it, without extending quantum key distribution across the whole estate at once.

Why QNu Labs

Combine industry-leading network security with standards-based Quantum Key Distribution.

QNu Labs is India's only full-stack quantum cybersecurity company, delivering QKD, QRNG, PQC and QKMS under one sovereign platform: QShield.

The QShield platform empowers enterprises, defence organisations, cloud providers, and critical infrastructure operators to seamlessly adopt quantum-safe technologies while achieving crypto-agility across their ecosystems. By combining quantum-grade hardware with software-defined control and interoperability, QNu Labs ensures alignment with NIST standards, delivers unmatched flexibility and compliance readiness, and reduces risk across data, network, and compute layers.