The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 03, 2023

Filed:

Jul. 09, 2021
Applicant:

Huawei Technologies Duesseldorf Gmbh, Munich, DE;

Inventor:

Hans Brunner, Munich, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/08 (2006.01); H04B 10/70 (2013.01);
U.S. Cl.
CPC ...
H04L 9/0858 (2013.01); H04B 10/70 (2013.01);
Abstract

A transmitter Continuous-Variable Quantum Key Distribution (CV-QKD) device stores and transmits a quantum signal over a communication channel. A receiver CV-QKD device receives the quantum signal via the communication channel and via a reception band. The receiver CV-QKD device determines a quantum communication channel. The receiver CV-QKD device communicates the determined quantum communication channel to the transmitter CV-QKD device over an authenticated communication channel. The transmitter CV-QKD device obtains a modified quantum signal by modifying the stored quantum signal based on the determined quantum communication channel. The transmitter CV-QKD device and the receiver CV-QKD device generate a secret key using the modified quantum signal and the received quantum signal.


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