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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.:

US 10992482 B1

PDFFull Text
Date of Patent:
Apr. 27, 2021

Filed:

Dec. 14, 2017

Verified boot and key rotation

Applicant:

Google Llc, Mountain View, CA (US);

Inventors:

Alejandro Martin Deymonnaz, San Francisco, CA (US);

Darren David Krahn, Saratoga, CA (US);

David Zeuthen, Foxborough, MA (US);

Assignee:

Google LLC, Mountain View, CA (US);

Attorney:

Shumaker & Sieffert, P.A.

Primary Examiner:

Abu S Sholeman

Int. Cl.
CPC ...
H04L 9/32 (2006.01); G06F 9/4401 (2018.01); G06F 21/57 (2013.01); H04L 9/30 (2006.01); H04L 9/08 (2006.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3263 (2013.01); G06F 9/4401 (2013.01); G06F 21/575 (2013.01); H04L 9/0891 (2013.01); H04L 9/0894 (2013.01); H04L 9/30 (2013.01); H04L 9/3265 (2013.01); H04L 63/0823 (2013.01);
Abstract

Methods, systems, and apparatus, including computer-readable media, for verified boot and key rotation. In some implementations, a device extracts a public key from a secure data storage area of the device. The device extracts a first certificate for an intermediate key and a second certificate for a signing key, the first certificate and the second certificate being extracted from a system image. The device verifies a signature of the first certificate using the public key. After verifying the signature of the first certificate, the device verifies the second certificate using a public key in the first certificate. In response to verifying the second certificate, the device loads the system image during a boot process of the device.

Find Patent Forward Citations

Deymonnaz, Alejandro. (2021). Verified boot and key rotation (U.S. Patent No. 10992482). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10992482

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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