Bangalore/Delhi: QNu Labs, a global leader in end-to-end hybrid quantum cybersecurity solutions, has announced the findings of an independent research study validating the real-world performance of its ARMOS QKD platform in collaboration with VIAVI Solutions.
The study establishes ARMOS QKD as a robust, deployment-ready solution for enabling quantum-safe communication across enterprise and critical infrastructure networks.
Conducted using VIAVI’s industry-recognised MAP-300 platform, the study evaluated the deployment readiness of ARMOS QKD under controlled test conditions.
The platform demonstrated secure key generation over distances of up to 200 KM of standard telecom fibre (40 dB loss) without signal amplification, while maintaining Quantum Bit Error Rates below 4 percent—well within safe operating thresholds.
At typical metro distances of approximately 50 KM, ARMOS QKD achieved secure key generation rates of up to 8,000 secure bits per second, enabling real-time encryption for high-value data flows.
Even at extended distances of 200 KM, ARMOS QKD sustained performance at around 200 secure bits per second, highlighting its reliability across varied network environments.
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A key highlight of the study is the ability of ARMOS QKD to coexist seamlessly with 10 Gbps classical data traffic on the same fibre, without any measurable degradation to the quantum channel.
This capability addresses a major barrier to Quantum Key Distribution adoption by enabling integration without requiring network redesign.
Study Demonstrates Operational Resilience of ARMOS QKD, with System Autonomously Detecting and Recovering from Simulated Fibre Cuts Within Minutes
It maintained stable performance and self-restored secure key generation without manual intervention, even under real-world conditions such as attenuation and polarisation fluctuations. These results reinforce the readiness of ARMOS QKD for large-scale deployment.
Central to this performance is QNu Labs’ proprietary decoy-state Differential Phase Shift (DPS) protocol, which enables ARMOS QKD to operate effectively at up to 40 dB of channel loss. This significantly extends the transmission range compared to conventional QKD systems, without compromising security.
Sunil Gupta, Co-founder and Chief Executive Officer, QNu Labs, said, “As the industry moves closer to a quantum-driven reality, the need for proven, deployment-ready security solutions becomes critical. This validation reflects the depth of engineering and real-world readiness we have built at QNu Labs, with VIAVI’s globally recognised testing environment further reinforcing the robustness of our approach.
It demonstrates that quantum-safe communication can be implemented at scale, without compromising on performance or disrupting the existing network architectures.”
Adding to this, Sameh Yamany, Chief Technology Officer, VIAVI Solutions, said, “VIAVI brings deep expertise in optical, photonics, security, and critical systems testing to accelerate quantum-safe communications into real-world networks.
We deliver independent validation with uncompromising rigor so these technologies perform at scale under real telecom conditions. We’re proud to partner with QNu Labs to validate the ARMOS QKD platform, a key step toward operational, quantum-resilient infrastructure.”
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Sudiptaa Paul Choudhury, Chief Marketing Officer, QNu Labs, added, “Quantum security is at an inflection point where intent needs to translate into informed adoption. What this study enables is a shift from abstract promise to demonstrable capability, giving stakeholders the confidence to engage with quantum-safe technologies more decisively.
For us, it is equally about shaping how these conversations evolve globally, positioning India-built sovereign indigenous innovation like QNu’s at the forefront of credible, scalable cybersecurity solutions.”
The report also outlines the next phase of research for ARMOS QKD, including testing under higher classical data loads, extended link performance beyond current benchmarks, and deeper modelling of hybrid quantum-classical networks.
These efforts aim to further support the development of scalable and deployable quantum-secure communication frameworks.
Developed in India, ARMOS QKD reflects QNu Labs’ continued focus on advancing quantum-safe technologies aligned with national priorities and global security requirements.
The findings mark a significant step in enabling organisations to transition toward quantum-resilient infrastructure with greater confidence.
