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#Quantum Secured Metro Network
Case study

London Quantum-Secured Metro Network (PDF, 480KB)

This paper covers a commercially-ready QKD metro network built in London, complete with customer access tails and an aggregated central metro node, able to support multiple customers. The solution includes a full Key Management System; encrypted classical Ethernet data on the same fibre and a Data Communications Network (DCN) for full remote monitoring at BT’s Network Operations Centre (NOC).

Press release
7 min read

BT and Toshiba to build world’s first quantum-secured metro network across London

The network will connect sites in London’s Docklands, the City and the M4 Corridor, and provide data services secured using Quantum Key Distribution (QKD) and Post-Quantum Cryptography (PQC)


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