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:
Dec. 07, 2021
Filed:
Mar. 12, 2019
International Business Machines Corporation, Armonk, NY (US);
Sachin Gupta, Bangalore, IN;
Sandeep Korrapati, Bangalore, IN;
Santosh Balasubramanian, Bangalore, IN;
Raja Das, Bengaluru, IN;
Shakeeb Pasha B.K., Bangalore, IN;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Embodiments provide a mutable CRTM schema for ensuring the integrity of a client workload on a single system as updates are made to the firmware used to initialize and run that system by booting a computing system in a secure mode; when successfully validating a boot image for the computing system via a secure verification code that is blocked from write access when the system is booted in a unsecure mode, allowing write access to the secure verification code; and continuing to boot the computing system in the secure mode according to the boot image. When booting the system and unseccessfully validating the boot image at the third time, the system boot is failed.