Adtran and Orange are collaborating on a lab trial of quantum key distribution (QKD) technology over an optical network.
The trial featured Adtran’s FSP 3000 with OpenFabric technology for efficient encryption key distribution and optimized link performance. Leveraging a coherent 400Gbit/s DP-16QAM channel, the platform transported a QKD-secured data stream across two trusted nodes and three links, spanning 184km of standard, single-mode dark fiber.
Both the Layer 1 encryption and hybrid key exchange used in the trial are enabled by Adva Network Security’s ConnectGuard solution.
The companies said one of the trial’s key achievements was overcoming data loss and distance constraints while transporting significant volumes of quantum-secure data alongside the quantum channel. The trial introduced a hybrid key exchange, blending classical asymmetric methods with QKD, creating a robust dual layer of security. While classical key exchange ensures immediate data protection in line with current cryptographic standards and governmental approval, QKD offers future-proof security, resilient against future computational advancements.
“As we navigate the opportunities and challenges that quantum computing presents, it’s clear we’re at the beginning of a new era in network security. Our successful lab trial with Adtran highlights the magnitude of industry collaboration required to harness the full potential of quantum technology and secure our digital future,” said Gilles Bourdon, VP of wireline networks and infrastructure at Orange. “The synergy between Adtran’s FSP 3000 open optical transport technology, Adva Network Security’s ConnectGuard encryption, Toshiba’s latest QKD systems, and our expertise in network integration sets a formidable benchmark for quantum-resistant communications across Europe.”
“By utilizing a QKD trusted-node configuration provided by our technical partner Toshiba Europe/Japan, we’re showcasing some of the practical applicability of this technology in today’s networks. At Adtran, we’ve always been at the forefront of quantum security advancements, consistently applying the latest developments in QKD and post-quantum cryptography. This trial further underscores our dedication to pushing boundaries in this field,” commented Christoph Glingener, CTO of Adtran. “We’ve also always been committed to championing interoperability, promoting and contributing to open standards, such as the ETSI interface for QKD key delivery. Our latest collaboration with Orange emphasizes that an open, cooperative approach in the design and implementation of QKD solutions is indispensable to propel this vital technology at the speed we all require. Together, we’re setting the stage for a future where our data remains secure, irrespective of the challenges coming over the horizon.”
