Invention Grant
- Patent Title: System and method of authenticating firmware for an information handling system
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Application No.: US17076371Application Date: 2020-10-21
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Publication No.: US11809567B2Publication Date: 2023-11-07
- Inventor: Wei G Liu , Jayanth Raghuram
- Applicant: Dell Products L.P.
- Applicant Address: US TX Round Rock
- Assignee: Dell Products L.P.
- Current Assignee: Dell Products L.P.
- Current Assignee Address: US TX Round Rock
- Agency: McDermott Will & Emery LLP
- Main IPC: G06F21/57
- IPC: G06F21/57 ; H04L9/32

Abstract:
In one or more embodiments, one or more systems, one or more methods, and/or one or more processes may retrieve a first hash value of a key manifest public key from a one time programmable memory medium; determine a second hash value of the key manifest public key; retrieve a third hash value of an initial boot block from the boot policy manifest; determine a fourth hash value of the initial boot block; determine that the third hash matches the fourth hash value; execute the initial boot block; validate subordinate certificates with a root certificate; determine firmware hash values respectively from the firmware volumes; decrypt signatures respectively associated with the firmware volumes to obtain respective decrypted signatures, in which the signatures are decrypted with public encryption keys of the respective subordinate certificates; determine that the firmware hash values respectively match the decrypted signatures; and execute the firmware volumes.
Public/Granted literature
- US20220121749A1 SYSTEM AND METHOD OF AUTHENTICATING FIRMWARE FOR AN INFORMATION HANDLING SYSTEM Public/Granted day:2022-04-21
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