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:
Nov. 08, 2022
Filed:
Mar. 23, 2021
Western Digital Technologies, Inc., San Jose, CA (US);
Shay Benisty, Beer Sheva, IL;
Ishai Ilani, Dolev, IL;
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
The present disclosure generally relates to data storage devices and related methods that use secure host memory buffers (HMBs) and low latency operations. A controller of the data storage device is configured to access the HMB, where the HMB stores a Merkle Tree. When the HMB is initialized, the controller determines a number of hash levels of the Merkle Tree. Each hash level of the Merkle Tree comprises one or more hashes. When storing location data in a target data block of the Merkle Tree, the controller is configured to initialize only the hashes along a path between a top hash and the target data block. Each hash along the path has a non-initialized hash coupled to a common hash. The non-initialized hash is programmed with a non-initialized bit, such that only the relevant hashes and data blocks are initialized.