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:
Jan. 04, 2022
Filed:
Jun. 26, 2019
Applicant:
Motorola Solutions, Inc., Chicago, IL (US);
Inventors:
Timothy Woodward, Tempe, AZ (US);
Chris A Kruegel, Plainfield, IL (US);
Assignee:
MOTOROLA SOLUTIONS, INC., Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04K 1/00 (2006.01); H04W 12/04 (2021.01); H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
H04W 12/04 (2013.01); H04L 9/0891 (2013.01);
Abstract
A method and Key Management Facility (KMF) for managing keys of a single user having a plurality of devices is provided. The KMF receives an Over-The-Air Rekeying (OTAR) message relating to a first device and including an interworking bit. If the interworking bit is set, the KMF retrieves a main source RSI and a Sub-RSI field from the OTAR message. If the main source RSI matches other main source RSIs from other devices, the KMF manages keys for all devices that have the same main source RSI in an identical manner.