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:
Apr. 14, 2026
Filed:
Dec. 13, 2023
Amazon Technologies, Inc., Seattle, WA (US);
Erez Tsidon, Moreshet, IL;
Amazon Technologies, Inc., Seattle, WA (US);
Abstract
In a computer or other electronic device that uses a boot process, it is desirable to allow updating of boot images without impacting objects sealed using trusted keys. In one embodiment, multiple platform configuration registers (PCRs) within a Trusted Platform Module (TPM) are used in association with the booting process. A first PCR can be associated with a first boot image and a second PCR can be associated with a second boot image. A change in the first boot image results in a change of the first PCR value, but the second PCR value can remain unchanged. Accordingly, any objects that are sealed using a trusted key as the second PCR value need not be resealed. Addition PCRs can be added for additional boot images.