Ciena(US:CIEN) Huan Qiu Wang Zi Xun·2025-12-12 02:47Group 1 - Quantum Corridor, in collaboration with Toshiba International and partners, successfully demonstrated inter-state quantum key distribution (QKD) over a commercial metropolitan fiber optic network between Illinois and Indiana, marking a first for commercial operators in the U.S. [1] - The QKD experiment utilized existing commercial fiber infrastructure, with a communication link extending 21.8 kilometers from the Chicago ORD 10 data center to the Digital Crossroad data center in Hammond, Indiana [1]. - The experiment focused on validating the synergy between Toshiba's multiplexed QKD technology and Ciena's high-speed coherent transmission system, achieving key generation and high-throughput encryption [1]. Group 2 - The core principle of quantum key distribution involves generating encryption keys through the interaction of quantum physics and classical communication, utilizing single-photon quantum states to create randomness, which is then coordinated and verified through classical communication [2]. - The Toshiba QKD system complies with ETSI standards, achieving an average network security key rate of 1500 kbps, significantly exceeding conventional application expectations [2]. - The generated quantum keys can be seamlessly integrated into Ciena Waveserver 5 800G coherent encryption modules, providing AES-256-GCM encryption services, and the solution has received FIPS 140-3 Level 2 certification [2]. - During a continuous 48-hour encryption traffic test, the system maintained a 100% line rate throughput with no packet loss, demonstrating the practical value of QKD technology in real-world high-availability network operations [2].