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.

Date of Patent:
Feb. 04, 2025

Filed:

Oct. 26, 2022
Applicant:

Dell Products L.p., Round Rock, TX (US);

Inventors:

Mukund P. Khatri, Austin, TX (US);

Eugene David Cho, Austin, TX (US);

Milton Olavo Decarvalho Taveira, Round Rock, TX (US);

Assignee:

Dell Products L.P., Round Rock, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/57 (2013.01); G06F 21/60 (2013.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
G06F 21/575 (2013.01); G06F 21/602 (2013.01); H04L 9/3247 (2013.01);
Abstract

Techniques are provided for identity-based verification of software code layers. One method comprises obtaining, by a current layer of software code executing on a security processor of a security sub-system, in connection with a boot of the security sub-system, an identity key of the current layer, wherein the identity key of the current layer is based on a value generated during a provisioning of the security sub-system, wherein the value is based on a firmware image of at least one layer of the software code; obtaining an encrypted secure boot public key of a next layer; decrypting the encrypted secure boot public key of the next layer using the obtained identity key of the current layer; verifying the next layer using the decrypted secure boot public key of the next layer; and executing the next layer based at least in part on a result of the verifying.


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