Invention Grant
- Patent Title: System and method of authenticating updated firmware of an information handling system
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Application No.: US17351424Application Date: 2021-06-18
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Publication No.: US12074980B2Publication Date: 2024-08-27
- Inventor: Nicholas DiCiurcio Grobelny , Amy Christine Nelson
- 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: H04L9/32
- IPC: H04L9/32 ; G06F8/71 ; H04L9/00

Abstract:
In one or more embodiments, a first information handling system may: receive a chained cryptographic hash value determined by a trusted platform module (TPM) of a second information handling system; receive multiple patch identities associated with multiple updated firmware installed on multiple components of the second information handling system; receive an event log associated with output of the TPM as the TPM determined the chained cryptographic hash value; retrieve multiple layered endorsements respectively associated with the multiple patch identities; determine multiple hash values from multiple signatures stored in the multiple layered endorsements; compare the chained cryptographic hash value with the event log; compare multiple event information with the multiple hash values; and determine that the second information handling system has booted into a trusted state based at least on comparing the chained cryptographic hash value with the event log and comparing the multiple event information with the multiple hash values.
Public/Granted literature
- US20220407714A1 SYSTEM AND METHOD OF AUTHENTICATING UPDATED FIRMWARE OF AN INFORMATION HANDLING SYSTEM Public/Granted day:2022-12-22
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