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The trial of a commercial quantum-secured metro network has started in London.
Professor Andrew Lord
The BT network enables customers to send data securely between sites by first sending encryption keys over optical fibre using a technique known as quantum key distribution (QKD).
The attraction of QKD is that any attempt to eavesdrop and intercept the keys being sent is discernable at the receiver.
The network uses QKD equipment and key management software from Toshiba while the trial also involves EY, the professional services company.
EY is using BT’s network to connect two of its London sites and will showcase the merits of QKD to its customers.
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