Current Encryption Standards Have an Expiration Date.
Today’s encryption relies on algorithmic complexity—soon to be vulnerable to quantum computers. Data intercepted now may be stored and decrypted later, putting long-term confidentiality at risk. Even post-quantum algorithms offer only temporary protection.
zerothird’s entanglement-based QKD resolves this by distributing entangled photon pairs from a source that doesn’t need to be trusted or secured, allowing identical keys to be derived through correlated quantum measurements and enabling instant detection of interception. Your data stays permanently protected, regardless of computing or hardware advancements.
Reliable Quantum Security Across Any Infrastructure
zerothird provides tailored quantum security solutions, from metropolitan networks to intercity and fully connected quantum networks—now being validated in real-world testbeds across Europe.
Scientifically Provable Quantum Security for Today and Tomorrow.
Our QKD systems leverage quantum entanglement, not mathematics, to create provably secure cryptographic keys based on the laws of nature. Instantly detect interception, eliminating quantum and classical threats permanently.
The Details
zerothird Hardware.
Discover zerothird’s quantum hardware solutions, lab equipment, and Key-as-a-Service offerings tailored to secure every aspect of your organization.
zerothird’s QKD system distributes entangled photon pairs between endpoints, where superconducting detectors measure correlated states to derive identical keys—no key ever travels the network.
2× QKD rack, 19'' modular sub-rack systems: entangled photon pair source 2x detection unit with SNSPD 2× secure key generation hardware units 2× compressor units (450 x 320 x 400 mm)
Frequently Asked Questions
What is entangled QKD, and why is it superior?
zerothird’s entangled QKD generates cryptographic keys from photon pairs whose quantum states are intrinsically linked (entangled). Unlike traditional encryption, any interception attempt disturbs the quantum correlations, which can be detected during key generation. This effectively provides a level of security not achievable by classical or algorithm-based methods.
What is the difference between Long-Distance and Metropolitan QKD systems?
Long-distance QKD secures transmissions up to 350km while minimizing reliance on intermediate (trusted) nodes, ideal for intercity links. Metropolitan QKD is optimized for shorter, densely interconnected networks, typically within city-wide infrastructures, such as data centers or campuses, ensuring high-speed, quantum-secure communication.
How does zerothird’s fully connected network QKD system work?
No. zerothird’s QKD solutions integrate seamlessly with existing standard telecom optical fiber and DWDM infrastructure, allowing immediate deployment without expensive infrastructure upgrades or significant downtime.
Why should we act now if large-scale quantum computers are still years away?
Sensitive data intercepted today can be stored and decrypted later using future quantum computers, a threat known as “harvest now, decrypt later.” With classical computing power also increasing rapidly through AI and specialized hardware, the risk horizon is accelerating. zerothird’s QKD solutions provide forward-secure protection now, eliminating the long-term vulnerability of today’s communications.
What does the QKD deployment process involve?
zerothird handles the end-to-end delivery, setup, and integration of QKD systems into your network environment. We work closely with your team to minimize disruption, adapt to your infrastructure, and ensure a smooth transition to quantum-secure communication.
Elevate Your Security Posture Beyond the Quantum Threshold.
Whether you’re planning a secure network or exploring integration—our team is ready to protect your most valuable assets.
Get in contact with our Tech team to receive more details
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Discover the Full Spectrum of Quantum Solutions.
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Key as a Service.
Receive quantum-generated cryptographic keys directly to your endpoints—fully operated and maintained by zerothird, shifting QKD cost from Capex to Opex.
