Abstract dark blue cryptography hardware blocks

DNX–QKG–01

PCI Quantum Key Appliance

PCI Quantum Key Appliance

CHF 29’500 per unit

PCI card for high-assurance quantum key generation for organizations building resilient, future-ready security infrastructure.

PCI card for high-assurance quantum key generation for organizations building resilient, future-ready security infrastructure.

• 250 Mbit/s cryptographic entropy generation

• Secure enterprise provisioning

• Photonic quantum entropy sources

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Product overview

Product overview

Quantum entropy for resilient security

The DNX–QKG–01 PCI Quantum Key Appliance provides high-assurance key material for organizations strengthening cryptographic infrastructure against current and emerging threats. Its quantum entropy source is designed to support secure provisioning workflows where the quality, traceability, and operational availability of random key material are critical.

The platform can be introduced into enterprise security architectures as a dedicated source for key generation and distribution processes. Deployment guidance helps security teams define integration boundaries, operational controls, and lifecycle procedures while preserving compatibility with established cryptographic services and governance requirements.

The PCI Quantum Key Appliance is a high-throughput hardware entropy source designed for direct integration into servers, workstations and security appliances. Quantum entropy is generated optically by directing light through a beam splitter and measuring the fundamentally probabilistic distribution of the resulting optical signals with two high-speed photodiodes.

The detector outputs are sampled and processed in real time by an RFSoC FPGA, combining high-speed analogue acquisition, digital signal processing and entropy extraction on a single hardware platform. The system delivers quantum-derived random data at a sustained throughput of up to 250 Mbit/s.

Parameters

Parameter

Specification

Entropy source

Optical quantum entropy

Quantum process

Probabilistic optical-path distribution at a beam splitter

Optical architecture

Beam splitter with dual-detector readout

Detectors

Two high-speed photodiodes

Signal acquisition

High-speed differential photodiode sampling

Processing platform

RFSoC FPGA

Random-data throughput

Up to 250 Mbit/s

Processing

Real-time FPGA-based acquisition and entropy extraction

Output format

Continuous quantum-random bitstream

Host integration

PCI Express

Intended operation

Continuous server-integrated entropy generation

Hardware

Parameter

Specification

Form factor

PCI Express expansion card

Optical entropy module

Integrated light source, beam splitter and dual photodiode assembly

Photodetection

Matched high-speed photodiode channels

Digitisation

RFSoC-integrated high-speed analogue-to-digital converters

Digital processing

Programmable FPGA fabric

Maximum throughput

250 Mbit/s

Host communication

PCI Express interface

Installation

Internal server or workstation expansion slot

Operating mode

Continuous real-time random-data generation

Enclosure

RF-shielded PCIe card housing

Key Features

Optical quantum entropy generation
Randomness originates from the probabilistic behaviour of light at a beam splitter. The resulting optical signals are independently measured by two high-speed photodiodes.

Differential dual-detector architecture
The two photodiode outputs are evaluated against each other, reducing sensitivity to common-mode fluctuations in optical intensity, temperature and electronic operating conditions.

RFSoC-based signal processing
High-speed analogue converters and programmable FPGA logic are integrated within the RFSoC platform, enabling deterministic acquisition and processing without relying on the host CPU.

250 Mbit/s throughput
The generator delivers a continuous quantum-random bitstream at up to 250 Mbit/s, supporting demanding cryptographic, cybersecurity and scientific workloads.

Direct server integration
The PCI Express architecture provides an internal hardware entropy source for servers, security appliances and high-performance computing systems.

Programmable hardware platform
The FPGA processing chain can support device monitoring, calibration, entropy extraction, health testing and application-specific output interfaces.

Applications

The PCI Quantum Key Generator is designed for:

  • Cryptographic key generation

  • Hardware security modules

  • Data-centre and server entropy

  • Secure communications

  • Post-quantum cryptographic systems

  • Blockchain and digital-asset infrastructure

  • Scientific simulation and Monte Carlo workloads

  • Artificial intelligence and probabilistic computing