QNu Labs Achieves 8,000 Secure Bits Per Second QKD
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QNu Labs has demonstrated secure key generation at a rate of 8,000 bits per second using its ARMOS Quantum Key Distribution (QKD) platform at typical metropolitan distances, a speed capable of supporting real-time encryption for sensitive data. Independent validation by VIAVI Solutions confirms ARMOS can maintain this secure communication over 200 kilometers of standard telecom fiber, achieving 40 decibels of loss without signal amplification, which surpasses limitations of many existing QKD systems. A key finding of the study is the system’s ability to coexist with existing 10 Gbps networks, eliminating the need for costly infrastructure overhauls. “As the industry moves closer to a quantum-driven reality, the need for proven, deployment-ready security solutions becomes critical,” said Sunil Gupta, Co-founder and Chief Executive Officer, QNu Labs, highlighting the significance of this advancement toward scalable quantum-safe communication. ARMOS QKD Achieves 200 KM Range with Sub-4% Error Rates The ARMOS Quantum Key Distribution (QKD) system has demonstrated secure communication across distances up to 200 kilometers of standard telecom fiber, a feat validated by an independent study conducted with VIAVI Solutions. This achievement addresses a significant limitation of many QKD implementations, as the system maintained secure key generation without relying on signal amplification, even with 40 decibels of signal loss. At these extended ranges, ARMOS sustained a key generation rate of approximately 200 secure bits per second, proving reliable operation under varied network conditions. The platform’s operational resilience was further demonstrated through autonomous recovery from simulated fiber cuts within minutes, maintaining stable key generation without manual intervention. Under controlled conditions, ARMOS achieved key generation rates of up to 8,000 secure bits per second at typical metro distances of around 50 kilometers, enabling real-time encryption for high-value data. This performance is based on QNu Labs’ proprietary decoy-state Differential Phase Shift protocol, extending operational tolerance and effectively doubling transmission range compared to conventional QKD systems, according to the company. Sameh Yamany, Chief Technology Officer, VIAVI Solutions, added, “We deliver independent validation with uncompromising rigor so these technologies perform at scale under real telecom conditions,” reinforcing the system’s readiness for large-scale deployment. The pursuit of quantum key distribution (QKD) has long been hampered by practical limitations; however, recent validation studies suggest a narrowing gap between theoretical promise and real-world deployment. QNu Labs, in collaboration with VIAVI Solutions, has demonstrated the performance of its ARMOS platform using VIAVI’s MAP-300 test environment, revealing key capabilities for integrating quantum security into existing networks. VIAVI brings deep expertise in optical, photonics, security, and critical systems testing to accelerate quantum-safe communications into real-world networks. Sameh Yamany, Chief Technology Officer, VIAVI Solutions Decoy-State DPS Protocol Enables Extended Transmission Tolerance QNu Labs’ advancements in quantum key distribution (QKD) are rooted in a proprietary approach to signal transmission, leveraging a decoy-state Differential Phase Shift (DPS) protocol to significantly extend operational range. This protocol allows the ARMOS platform to maintain secure communications across 200 kilometers of standard telecom fiber, experiencing up to 40 decibels of signal loss without requiring costly signal amplification, effectively doubling the transmission distance achievable by conventional QKD systems. Independent testing, conducted with VIAVI Solutions’ MAP-300 platform, confirmed that the system consistently maintained Quantum Bit Error Rates below 4 percent, well within acceptable parameters for secure operation. This self-restoration capability, alongside the protocol’s tolerance for attenuation and polarization fluctuations, reinforces ARMOS’ readiness for large-scale deployment and positions QNu Labs as a key innovator in sovereign quantum cybersecurity solutions, developed in India to meet both national and global security requirements. As the industry moves closer to a quantum-driven reality, the need for proven, deployment-ready security solutions becomes critical. Sunil Gupta, Co-founder and Chief Executive Officer, QNu Labs Source: https://www.qnulabs.com/ Tags: Ivy Delaney We've seen the rise of AI over the last few short years with the rise of the LLM and companies such as Open AI with its ChatGPT service. Ivy has been working with Neural Networks, Machine Learning and AI since the mid nineties and talk about the latest exciting developments in the field. Latest Posts by Ivy Delaney: Yaqumo Secures Seed Extension From $350M Quantum VC April 10, 2026 Horizon Quantum will acquire a 256-qubit trapped-ion system from IonQ April 9, 2026 TUAT’s Nanoparticle Alignment Improves Conductivity in Photodetectors April 9, 2026