Importance

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Abstract

A server configured to provide a pre-shared key “PSK” with a first user node, to allow a first user node and a second user node to share a PSK, the server comprising:

a network interface; an authentication unit; an encryption unit; a key management system and a quantum key distribution unit,the authentication unit being configured to receive a request for authentication, via the network interface, of a first channel between a first user node and the server,the quantum key distribution unit being configured to allow a quantum key to be distributed between the first user node and the server, the quantum key being sifted using communication over the authenticated first channel to establish a first quantum key for the first user and server,the key management system being configured to provide a first PSK for the first user to allow the first user to authenticate with the second user,the encryption unit being configured to encrypt the first PSK with the quantum key to send to the first user node via the network interface.

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First Claim