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. 03, 2017
Filed:
Mar. 30, 2016
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Alain Gefflaut, Kirkland, WA (US);
Andrey Shedel, Sammamish, WA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Protecting secured boot secrets while starting an operating system. Embodiments include starting a first operating system using a trusted computing base, protecting a portion of the system memory to prevent access to the portion of the system memory by the first operating system, and storing secured boot secrets in the protected portion of the system memory. Based at least on identifying that a second operating system is to be started to replace the first operating system, embodiments include configuring one or more memory data structures, including code of the second operating system, in the protected portion of the system memory. The protected portion of the system memory is unprotected, while mitigating attacks on the portion of system memory, and processor state is set to execute the code of the second operating system. The second operating system starts using the secured boot secrets stored in the portion of the system memory.