KaaS: Key-as-a-Service for Quantum Security.

zerothird generates quantum keys using entangled photons via hardware fully owned and operated by zerothird. These keys are temporarily and securely stored in a local key vault—never forwarded to any zerothird facility or software–until retrieved by the client. Clients retrieve keys directly via standardized interfaces for real-time encryption within their own systems.

In long-distance links requiring trusted nodes, quantum keys are generated and temporarily stored at intermediate points fully owned and operated by zerothird. These trusted nodes are maintained under strict physical, IT, and operational security. Once relayed, the keys are made accessible to the client’s endpoints, where they’re pulled and used locally, without zerothird ever accessing their content. Across both models, zerothird maintains operational responsibility while ensuring clients retain control over when and how keys are applied. The KaaS model also shifts cost from CapEx to OpEx, ultimately reducing procurement delays and accelerating implementation timelines through simplified budgeting.

When supported, KaaS integrates seamlessly into your current cryptographic environment. We provide quantum-safe keys directly to your endpoints, allowing existing encryption hardware and software to remain in use, significantly reducing integration complexity and cost.

Traditional QKD systems require customers to purchase, install, and operate dedicated hardware. With KaaS, zerothird owns and operates the entangled photon source, which is typically deployed within or near the customer’s infrastructure, and delivers quantum-safe keys directly into existing encryption systems. This may reduce deployment time, operational overhead, and capital expenses while ensuring uncompromised quantum security.

While formal quantum cryptography standards are still evolving, KaaS is designed to meet the security expectations of highly regulated industries. Our keys are derived from entangled photons, providing information-theoretic security that aligns with the highest levels of cryptographic assurance.

Unlike live session key exchange systems, zerothird’s architecture uses buffered quantum keys, making the service resistant to denial-of-service attacks and resilient during temporary outages. This buffering allows key distribution to continue even if one side experiences maintenance or limited downtime, supporting continuous secure communication.

KaaS deployments are designed to minimize operational burden for your team. While lead times vary depending on system availability and site preparation, ZeroThird handles the complexity of hardware delivery, installation, and key delivery integration—streamlining your path to quantum-secure communications.

The keys are temporarily and securely stored in a local key vault—never forwarded or downloaded to any zerothird facility or software—until retrieved by the client.