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:
May. 17, 2022
Filed:
Oct. 08, 2020
Pelion Technology, Inc., San Jose, CA (US);
Brendan James Moran, Histon, GB;
Marcus Chang, Austin, TX (US);
Pelion Technology, Inc., San Jose, CA (US);
Abstract
A method of generating an output differential firmware update. Differential firmware update characteristic data is sent from a trusted execution environment (TEE) to an authorizing entity. The differential firmware update characteristic data indicates at least one characteristic associated with generation of the output differential firmware update within the TEE. The TEE obtains a key from the authorizing entity, and is thereby authorized by the authorizing entity to generate the output differential firmware update. The TEE obtains an encrypted version of a firmware portion of the firmware. The encrypted version of the firmware portion is decrypted using the key to obtain a decrypted version of the firmware portion. The output differential firmware update is generated using the decrypted version of the firmware portion.