US 2023/0275754 A1 · QUANTUM NETWORK AND AUTHENTICATION METHOD

Abstract

A method for use in a quantum communication network comprising a first node, a second node and a third node, the method performed by the third node, the method comprising: receiving, from the first node, a request for authentication key data for authenticating communication with the second node; in response to the request: generating the first authentication key data; sending, to the first node, a first message comprising first authentication key data for authenticating communication between the first node and the second node, wherein the first message is authenticated using second authentication key data stored on the first node and the third node, and wherein the first message is encrypted using a first cryptographic key exchanged with the first node on the quantum communication network; and sending, to the second node, a second message comprising the first authentication key data, wherein the second message is authenticated using third authentication key data stored on the second node and the third node, and wherein the second message is encrypted using a second cryptographic key exchanged with the second node on the quantum communication network.

Claims20

Dependent claims

A method for use in a quantum communication network comprising a first node, a second node and a third node, the method performed by the third node, the method comprising:

receiving, from the first node, a request for authentication key data for authenticating communication with the second node;
in response to the request:
generating the first authentication key data;
sending, to the first node, a first message comprising first authentication key data for authenticating communication between the first node and the second node, wherein the first message is authenticated using second authentication key data stored on the first node and the third node, and wherein the first message is encrypted using a first cryptographic key exchanged with the first node on the quantum communication network;
and
sending, to the second node, a second message comprising the first authentication key data, wherein the second message is authenticated using third authentication key data stored on the second node and the third node, and wherein the second message is encrypted using a second cryptographic key exchanged with the second node on the quantum communication network.

3 more elements

A first node for use in a quantum communication network comprising the first node, a second node and one or more trusted nodes, wherein the first node is configured to:

request, from the one or more trusted nodes, authentication key data for authenticating communication with the second node;
receive, from a third node of the one or more trusted nodes, a first message comprising first authentication key data for authenticating communication with the second node, wherein the first message is authenticated using second authentication key data stored on the first node and the third node, and wherein the first message is encrypted using a first cryptographic key exchanged with the third node on the quantum communication network.

Dependencies are inferred from the claim text.

Quantum network and authentication method

Life of this patent

Quantum network and authentication method

Life of this patent

Abstract

Claims20