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.
Patent No.:
Date of Patent:
Feb. 14, 2023
Filed:
Nov. 18, 2020
Applicant:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Inventor:
Magnus Stig Torsten Sandell, Bristol, GB;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/08 (2006.01); H04W 72/0453 (2023.01); H04J 1/02 (2006.01); H04W 12/037 (2021.01);
U.S. Cl.
CPC ...
H04L 9/085 (2013.01); H04J 1/02 (2013.01); H04L 9/0838 (2013.01); H04L 9/0861 (2013.01); H04W 12/037 (2021.01); H04W 72/0453 (2013.01);
Abstract
A method of operating a first node to generate a secret key for encrypting wireless transmissions between the first node and a second node. The method comprises receiving a first training signal comprising a plurality of subcarriers from the second node and constructing a matrix from the frequency responses of each of the plurality of subcarriers of the first training signal at the first node. A singular value decomposition of the matrix is computed; and a secret key is derived from one or more singular vectors of the singular value decomposition.