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:
May. 31, 2022
Filed:
Sep. 11, 2020
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Reginald D. Bean, Center Point, IA (US);
Luke E. Ryon, Cedar Rapids, IA (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Abstract
A runtime monitoring system for a trusted computing environment is disclosed. In embodiments, the environment includes a trusted processor driven by a primary oscillator and a remote processing component driven by an auxiliary oscillator. A trusted reference hashing module hashes operating codes sent by the trusted processor for execution by the remote processing component; the received operating codes are also hashed by a trusted remote hashing module monitoring the remote processing component. A correlation module matches the remote and reference hashes and advances or delays the auxiliary oscillator to loop-lock the remote processing component to the trusted processor. The trusted processor periodically seeds the operating codes with a unique challenge having a unique hash response. The hash response received from the remote hashing module is checked against the reference hash response generated by the reference hashing module to verify that the remote processing component remains trusted and uncompromised.