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:
Oct. 07, 2014
Filed:
Dec. 15, 2011
Nader M. Rabadi, Grand Forks, ND (US);
Kevin M. Baltes, Wixom, MI (US);
Nader M. Rabadi, Grand Forks, ND (US);
Kevin M. Baltes, Wixom, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method for authenticating a piece of firmware to be downloaded to a controller. The method includes signing the firmware or a first part of the firmware with a first private key at a first trusted source and signing the firmware or a second part of the firmware with a second private key at a second trusted source. The method also includes validating the signed firmware or the first part of the firmware using a first public key at the controller and validating the firmware or the second part of the firmware using a second public key at the controller. The method further includes authenticating the firmware if the firmware or the first part of the firmware is validated by the first public key at the controller and the firmware or the second part of the firmware is validated by the second public key at the controller.