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:
Aug. 01, 2023
Filed:
Aug. 16, 2018
Applicant:
Comcast Cable Communications, Llc, Philadelphia, PA (US);
Inventors:
Assignee:
Comcast Cable Communications, LLC, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 12/04 (2021.01); H04W 4/50 (2018.01); H04W 12/06 (2021.01); H04L 9/40 (2022.01); H04L 9/14 (2006.01); H04L 9/32 (2006.01); H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
H04W 12/04 (2013.01); H04L 9/0861 (2013.01); H04L 9/14 (2013.01); H04L 9/3247 (2013.01); H04L 63/0428 (2013.01); H04W 4/50 (2018.02); H04W 12/06 (2013.01);
Abstract
Methods, apparatuses, and systems are described for deriving secured keys and authenticating based on the derived keys. An entity may receive one or more derived keys and one or more key derivation algorithms associated with the one or more derived keys. A user device may derive, based on a key associated with the user device and unknown to the entity, a user key. The entity may derive, based on a first derived key and one of the key derivation algorithms, a second derived key, and may verify, based on the second derived key, the user key.