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pQKD – QKD emulators

pQKD is Quantum B's groundbreaking cybersecurity product designed to accelerate the transition toward quantum-resistant cryptographic systems. It distributes cryptographic keys over a post-quantum-secured out-of-band channel — no fiber optic links required — while preserving full ETSI QKD protocol interfaces (ETSI GS QKD 004 and 014) and integrating a genuine on-chip QRNG from ID Quantique. A single deployable appliance that works with existing network infrastructure, today.

Product capabilities

Key features

pQKD integrates post-quantum key encapsulation, quantum entropy, and ETSI QKD protocol emulation into one appliance — interoperable with any network-layer encryption device or VPN supporting ETSI-style key exchange, without requiring dedicated quantum fiber.

  1. ETSI Standards Compliant

    Implements QKD protocols per ETSI GS QKD 004 and ETSI GS QKD 014 — the global communication standards for QKD technology. Interoperable with any ETSI-ready encryption device or VPN appliance.

  2. Network Independent

    Operates without dedicated fiber optic links. Distributes keys over an out-of-band channel on existing IP infrastructure via standard RJ-45 LAN interfaces — dramatically lowering deployment friction.

  3. FIPS-203 / Kyber

    The key distribution channel is secured by the Kyber post-quantum Key Encapsulation Mechanism (KEM) per the FIPS-203 standard — engineered to withstand cryptanalytic attacks from future quantum computers.

  4. Genuine QRNG

    Incorporates the Quantis IDQ6MC1 on-chip Quantum Random Number Generator by ID Quantique, operating independently of the QKD emulation function as a high-grade local entropy source accessible via REST API over HTTPS.

  5. Advanced Encryption

    Also functions as a standalone network encryptor supporting AES with key lengths 128, 256, 512, 1024 and 2048 bits (GCM256, CBC256, ECB modes) and the provably secure OTP (one-time pad) method.

  6. Managed & Monitored

    Full web interface for interactive setup and configuration, SNMP v1/v2/v3 monitoring, and onboard status LEDs reporting device state, QKD active, and QRNG active at a glance.

Hardware

Available versions

pQKD ships as a compact desktop appliance (90 × 65 × 33 mm, USB-C 5 V) or a standard 1U rack-mount unit with a built-in power supply. Minimum setup requires two devices — one acting as "Alice" and one as "Bob". Choose a product and place your order; shipping is calculated after receipt and payment is collected via a secure link on the order tracking page.

pQKD Rack-Mounted Version

pQKD Rack-Mounted Version

The pQKD rack-mounted version features standard 1U casing with compact dimensions. It comes with a built in reliable power supply.

pQKD Desktop Version

pQKD Desktop Version

The pQKD desktop version features a standalone casing with compact dimensions: 90mm × 65mm × 33mm (L × W × H). It comes with a small external USB C power supply for convenient setup and operation.

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Why pQKD?

pQKD enables organizations to begin the transition to quantum-safe key distribution earlier and with far less friction than full QKD. It is particularly well suited to environments that need stronger security now — without waiting for the economics or availability of dedicated quantum infrastructure:

  • Critical infrastructure — energy, water, transport, and industrial control networks
  • Distributed industrial networks, robotics, and operational environments with existing IP connectivity
  • Enterprise, telecom, and data-center environments requiring long-term confidentiality
  • Organizations that cannot defer quantum-safe migration and need an evolutionary, staged path
  • A clear upgrade path — pQKD can later be evolved into full physical QKD where higher assurance or dedicated quantum infrastructure is justified

The device design is covered by a pending patent for "A method and a device for encryption key distribution and communication". CE-certified pre-production units manufactured by Eutonomy are currently available and shipping.

Download datasheet (PDF)