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.

Date of Patent:
Nov. 28, 2023

Filed:

Oct. 25, 2021
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Reinhard Theodor Buendgen, Tuebingen, DE;

Christian Borntraeger, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/08 (2006.01); G06F 9/455 (2018.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
H04L 9/0825 (2013.01); G06F 9/45545 (2013.01); H04L 9/0869 (2013.01); H04L 9/3226 (2013.01);
Abstract

A method, a computer system, and a computer program product for cryptography are provided. A guest virtual server registers with a trusted hypervisor by using guest credentials. A guest wrapping key associated with the guest credentials is generated. A satellite virtual server instance that shares a master key with the virtual guest server is generated in the trusted hypervisor. A copy of the guest wrapping key is passed to the satellite virtual server instance. A random guest key is wrapped with the guest wrapping key, thereby producing a wrapped guest key. The wrapped guest key is rewrapped with the master key to form a protected guest key.


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