Quantum Dice Raises £4.1M to Commercialise Its ORBIT Quantum Random Number Generator for Cybersecurity
May 1, 2024
Quantum Dice, the Oxford University spinout pioneering quantum-secure random number generation, has raised £4.1M to commercialise ORBIT — its miniaturised quantum random number generator (QRNG) designed for deployment in real-world cryptographic systems. The round accelerates the company’s journey from laboratory breakthrough to commercial product, targeting the growing market for quantum-grade cryptographic security across defence, financial services, telecommunications, and critical national infrastructure.
Cryptographic security depends fundamentally on the quality of its randomness. Every encryption key, every secure communication protocol, and every digital certificate relies on a source of entropy that is genuinely unpredictable. Classical pseudo-random number generators, which power the vast majority of today’s security systems, are inherently deterministic — and therefore theoretically predictable given sufficient computational power. The arrival of quantum computers threatens to make this vulnerability catastrophic, as quantum processors can factor the large primes that underpin RSA and ECC encryption in a fraction of the time classical machines require. Truly random numbers, generated from the fundamental probabilistic behaviour of quantum particles, represent the only physically guaranteed source of unpredictability — but until recently, the hardware required to generate them at scale was bulky, expensive, and impractical to integrate into existing systems.
Quantum Dice’s ORBIT device changes that equation. Using a proprietary Source-Device-Independent (SDI) protocol, ORBIT produces quantum-certified randomness from integrated photonic components in a compact, rack-mountable form factor suitable for deployment in data centres and enterprise hardware. Crucially, ORBIT continuously self-certifies the quality of the entropy it generates — verifying in real time that the randomness is genuinely quantum in origin, not degraded by hardware faults, tampering, or environmental interference. This self-certification capability is a key differentiator, as it removes the need for periodic external auditing and enables trust in deployed systems over long operational lifetimes.
Spun out from the University of Oxford in 2021, Quantum Dice has built a team with deep expertise in quantum optics, photonics, and applied cryptography. The company has previously received support from the UK’s European Innovation Council and engaged in collaborations with government and defence stakeholders exploring quantum-secure infrastructure. Its technology has been independently validated by leading photonics research groups and is currently in advanced trials with prospective enterprise customers.
The £4.1M raise will fund the transition from prototype to production, including investment in manufacturing partnerships, regulatory certification, and the engineering talent needed to deliver ORBIT at commercial scale. As the UK government’s National Quantum Strategy and global moves toward post-quantum cryptography standards accelerate, Quantum Dice is positioning itself as a critical supplier of the entropy infrastructure that the next generation of secure communications will depend upon.
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