DNX–QKG–02
CHF 1’900 per unit
• Cryptographic entropy generation
• Portable, secure enterprise provisioning
• Drivers for Windows, MacOS and Linux
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Portable quantum key generation
The DNX–QKG–02 USB Quantum Key Generator is configured for organizations planning broader adoption of quantum-derived entropy across security operations. It supplies high-quality key material for resilient provisioning workflows and is designed to complement enterprise cryptographic controls rather than replace the systems and policies already in place.
Typical deployments include secure infrastructure, distributed services, sensitive communications, and long-lifecycle data protection programs. Dynex deployment guidance supports architecture review, integration planning, and operational handover, enabling security teams to introduce the generator with clear controls for availability, monitoring, and key-management governance.
Parameters
Parameter | Specification |
|---|---|
Randomness source | Quantum avalanche noise |
Entropy source components | Reverse-biased 24 V Zener diodes |
Architecture | Differential, dual entropy core |
Independent entropy channels | 2 |
Avalanche-noise channels | 4 |
Output throughput | 136.0 Kbit/s combined |
Single-channel throughput | 68.0 Kbit/s |
Sampling interval | 10 µs |
Output format | Random bytes |
Post-processing | Not required in the validated configuration |
Continuous monitoring | NIST-style repetition-count and adaptive-proportion health tests |
Startup diagnostics | Entropy-source and output-distribution checks |
The two independent entropy channels operate in parallel. Random bits are generated from the parity of avalanche-pulse counts measured during fixed sampling intervals. At a 10 µs sampling interval, the implementation produces 68.0 Kbit/s per channel and 136.0 Kbit/s combined.
Hardware
Parameter | Specification |
|---|---|
Board size | 60 mm × 37 mm |
Microcontroller | ATmega32U4 |
MCU architecture | 8-bit |
MCU clock frequency | 16 MHz |
Flash memory | 32 KB |
SRAM | 2.5 KB |
Primary interface | USB 2.0 |
Input voltage | 5 V via USB |
Typical current consumption | 58 mA |
Avalanche bias voltage | Approximately 25.5 V |
PCB implementation | Discrete components with SMD resistors and capacitors |
Communication interfaces | USB, SPI, TWI/I²C, USART and ICSP |
Monitoring points | Avalanche channels, comparator outputs, PWM, 2.5 V, 5 V and boost voltage |
The circuit measures 60 mm × 37 mm and uses an ATmega32U4 microcontroller with integrated USB connectivity. Exposed monitoring and interface headers provide direct access to internal noise signals, comparator outputs, supply rails and serial interfaces for auditing, diagnostics and integration.
Key Features
Transparent entropy generation
The physical entropy source, analogue signal path and digitisation process can be inspected directly through dedicated monitoring headers.
Differential noise architecture
Each entropy core compares two independent avalanche-noise signals instead of comparing a single source against a fixed reference, helping suppress predictable environmental and electromagnetic effects.
Dual independent entropy cores
Two separate entropy channels produce random bytes in parallel, supporting increased throughput, redundancy or independent experimental streams.
Integrated health monitoring
Firmware performs startup diagnostics and continuous repetition-count and adaptive-proportion tests to identify stuck outputs or degradation of the entropy source.