Colt Technology Services, Honeywell, and Nokia have announced a collaboration to test quantum-safe cryptographic technologies using space-based infrastructure. The initiative aims to evaluate the use of Low Earth Orbit (LEO) satellites to transmit quantum keys across ultra-long distances, thereby addressing cybersecurity threats posed by future quantum computers. The trial will focus on securing encrypted optical network traffic, particularly for sectors managing highly sensitive data such as finance, government, and healthcare.
The project centers on quantum key distribution (QKD), a technique that enables the secure exchange of cryptographic keys using quantum mechanics. Traditional QKD is limited to terrestrial distances of approximately 100 kilometers due to signal loss in fiber. By leveraging LEO satellite platforms, the collaborators aim to overcome these distance constraints and assess QKD’s feasibility for global-scale applications. The trial will also explore subsea deployment scenarios to extend reach across transatlantic routes.
With regards to timeframe, a spokesman for Honeywell remarked, “In Q3 2026, the aim is to have space based QKD as a demonstration platform utilising the Honeywell QEYSsat satellite for initial testing with partners and anchor customers. The target for Honeywell’s QKD services product offering via QKDsat launch for Enterprise production environments, delivering global enterprise locations coverage and commercial services is Q3 2027.”
This collaboration reflects growing industry efforts to preemptively secure data networks against quantum decryption risks. The companies have jointly published a white paper titled The Journey to Quantum-Safe Networking, which outlines technical challenges and potential solutions for future-proofing critical infrastructure. The announcement builds on Colt’s prior initiatives in quantum-secure terrestrial networking.
Read the full announcement here and access the white paper and related resources here.
June 3, 2025
