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. 11, 2025
Filed:
Jun. 07, 2021
Telefonaktiebolaget L M Ericsson (Publ), Stockholm, SE;
Niklas Lindskog, Lund, SE;
Håkan Englund, Lund, SE;
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL), Stockholm, SE;
Abstract
Systems and methods are disclosed herein for protecting data in a storage device by encrypting or decrypting the data with a Data Encryption Key (DEK). The storage device is communicatively coupled to a host and is locked with the host by secret sharing. In one example, the storage device comprises a Physically Unclonable Function (PUF) configured to, during a key generation phase of operation, generate a set of DEK responses based on a set of DEK challenges (chalDEK) and an assembler configured to obtain a set of SED DEK secret shares (SS) based on the first set of DEK responses, receive additional data, and assemble at least the set of SED DEK secret shares (SS) and the additional data to create a DEK master secret. The storage device also comprises a crypto module configured to receive a DEK based on the master secret and perform encryption and/or decryption of data using the DEK.