ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,399,983, issued on Aug. 26, was assigned to Amazon Technologies Inc. (Reno, Nev.).
"Stateful authenticated event communication" was invented by Troy Lawson Bevis (Seattle), Daniel John Farrell (Seattle) and Nathan Pritchard (Redmond, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "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 com...