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:
Sep. 19, 2023
Filed:
Sep. 21, 2022
Applicant:
Absolute Software Corporation, Vancouver, CA;
Inventors:
Eugene Khoruzhenko, Redmond, WA (US);
Philip B Gardner, Woodbury, MN (US);
Assignee:
Absolute Software Corporation, Vancouver, CA;
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/57 (2013.01); G06F 21/44 (2013.01); G06F 21/85 (2013.01); H04L 9/00 (2022.01); H04L 9/08 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
G06F 21/572 (2013.01); G06F 21/44 (2013.01); G06F 21/85 (2013.01); H04L 9/006 (2013.01); H04L 9/0825 (2013.01); H04L 9/0869 (2013.01); H04L 9/3268 (2013.01); H04L 9/3271 (2013.01);
Abstract
A mailbox mechanism is used for communication of secure messages from a server to the firmware of a device. Mailbox content provided by the server is authenticated in a driver execution environment of the device, using reboots across the communication sessions, and then stored in secure storage. The communication sessions include first receiving a signed server key, and then receiving a message from the server that is based on a hash of a nonce generated by the device.