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. 22, 2017
Filed:
Nov. 25, 2014
Applicant:
Intel Corporation, Santa Clara, CA (US);
Inventor:
Brent M. Sherman, Portland, OR (US);
Assignee:
Intel Corporation, Santa Clara, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/00 (2006.01); G06F 9/24 (2006.01); H04L 9/32 (2006.01); G06F 21/56 (2013.01); G06F 21/57 (2013.01);
U.S. Cl.
CPC ...
G06F 21/566 (2013.01); G06F 21/575 (2013.01);
Abstract
Embodiments of an invention for protecting a secure boot process against side channel attacks are disclosed. In one embodiment, an apparatus includes cryptography hardware, a non-volatile memory, a comparator, and control logic. The cryptography hardware is to operate during a first boot process. The non-volatile memory includes a storage location in which to store a count of tampered boots. The comparator is to perform a comparison of the count of tampered boots to a limit. The control logic is to, based on the first comparison, transfer control of the apparatus from the first boot process to a second boot process.