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:
Jun. 07, 2022
Filed:
Mar. 08, 2019
International Business Machines Corporation, Armonk, NY (US);
Reinhard T. Buendgen, Tuebingen, DE;
Christian Borntraeger, Stuttgart, DE;
Jonathan D. Bradbury, Poughkeepsie, NY (US);
Fadi Y. Busaba, Poughkeepsie, NY (US);
Lisa C. Heller, Rhinebeck, NY (US);
Viktor Mihajlovski, Wildberg, DE;
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
Secure processing within a computing environment is provided by incrementally decrypting a secure operating system image, including receiving, for a page of the secure operating system image, a page address and a tweak value used during encryption of the page. Processing determines that the tweak value has not previously been used during decryption of another page of the secure operating system image, and decrypts memory page content at the page address using an image encryption key and the tweak value to facilitate obtaining a decrypted secure operating system image. Further, integrity of the secure operating system image is verified, and based on verifying integrity of the secure operating system image, execution of the decrypted secure operating system image is started.