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:
Mar. 22, 2022
Filed:
Feb. 04, 2021
Axis Ab, Lund, SE;
Magnus Eriksson, Lund, SE;
Stefan Andersson, Lund, SE;
Fredrik Hugosson, Lund, SE;
Jerry Olsson, Lund, SE;
AXIS AB, Lund, SE;
Abstract
A method for re-provisioning a user equipment (UE,) after a first digital security certificate for the UE () has expired includes communicating content data to a controller () over a first secure communication channel after verification of a validity of a first digital security certificate. Once it is realized the first digital security certificate has expired, the UE () sends a certificate provisioning request message over an unsecure channel to the controller () as a request to the controller () to provision a second digital security certificate. The UE () signs the certificate provisioning request message with the private key for the now expired first digital security certificate. A second digital security certificate is signed by the rescue-secret private key at the controller () and sent to the UE (), which verifies its authenticity with the corresponding rescue-secret public key.