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:
Sep. 09, 2025
Filed:
Jul. 24, 2023
Vmware Llc, Palo Alto, CA (US);
Abhay Kumar Jain, Santa Clara, CA (US);
Long Yang, Fremont, CA (US);
Wenguang Wang, Santa Clara, CA (US);
Chandrakanth Gadhiraju, Fremont, CA (US);
VMware LLC, Palo Alto, CA (US);
Abstract
Aspects of the disclosure generate independent encryption keys for objects (e.g., virtual machine disks (VMDKs)) without requiring the management of multiple keys. An encryption manager obtains a primary encryption key, an object identifier (ID) comprising a globally unique ID (GUID) for an object, a data salt comprising the object ID and a data salt string, and a metadata salt comprising the object ID and a metadata salt string. A data encryption key is generated using the primary encryption key, the data salt, and a one-way function. A metadata encryption key is generated using the primary encryption key, the metadata salt, and the one-way function. Because the data salt string and metadata salt string differ, the data encryption and metadata encryption keys differ. Object IDs for different objects differ, so each object and its metadata have globally unique keys. Key generation (other than the primary key) is deterministic, simplifying key management.