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:
Aug. 26, 2025
Filed:
Feb. 19, 2020
Amazon Technologies, Inc., Reno, NV (US);
Troy Lawson Bevis, Seattle, WA (US);
Daniel John Farrell, Seattle, WA (US);
Nathan Pritchard, Redmond, WA (US);
Amazon Technologies, Inc., Reno, NV (US);
Abstract
Communications, such as system event log messages, can be authenticated using a hash value included in the messages. In some embodiments, the hash can be generated using secret hash parameters to generate a hash of the prior message in the sequence. The hash is stored to BIOS memory that is inaccessible, or at least not exposed, to an operating system executing on the computing device. A recipient, such as the BMC on the computing device, receiving these messages over an appropriate interface can compare the received and expected hash values in order to attempt to authenticate those messages. Authenticated messages can be processed, while unauthenticated messages can be dropped and remedial action taken as appropriate.