SYSTEM AND METHOD FOR OPTIMIZING THE ROUTING OF QUANTUM KEY DISTRIBUTION (QKD) KEY MATERIAL IN A NETWORK

SYSTEM AND METHOD FOR OPTIMIZING THE ROUTING OF QUANTUM KEY DISTRIBUTION (QKD) KEY MATERIAL IN A NETWORK

A system and method are described for proactively performing key swaps among nodes in a quantum key distribution (QKD) network. The method includes determining a routing solution for nodes in the QKD network; making the routing solution available to the nodes in the QKD network; and initiating key s...

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Bibliographische Detailangaben
Hauptverfasser: PARRY, Thomas Owen, LÜTKENHAUS, Norbert, PIANI, Marco, GODFREY, James Andrew
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:A system and method are described for proactively performing key swaps among nodes in a quantum key distribution (QKD) network. The method includes determining a routing solution for nodes in the QKD network; making the routing solution available to the nodes in the QKD network; and initiating key swaps among the nodes in the QKD network according to the routing solution, prior to key requests being made within the QKD network. The method can also include continuously performing key swaps among the nodes in the QKD network according to the routing solution; detecting a change in capacity and/or a change in demand on one or more links within the QKD network; determining a new routing solution based on the detected change; and continuously preforming subsequent key swaps according to the new routing solution.