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:
Dec. 17, 2024
Filed:
Feb. 18, 2022
Hensoldt Sensors Gmbh, Taufkirchen, DE;
Hensoldt Sensors GmbH, Taufkirchen, DE;
Abstract
A chip device with a logic circuitry () protected by a randomized logic encryption based on a key (K) for preventing a designated usage of the logic circuitry () by an unauthorized user comprises: a physically unclonable function, PUF, (), a storage (), and a chip enabler () with one or more registers (). The physically unclonable function, PUF, () is configured to generate a device-individual response (Re) based on a challenge (Ch). The storage () has stored the challenge (Ch) and a data element (C), the data element (C) being an encryption of the key (K) with the response (Re) of the PUF () as encryption key. The enabler () is configured to enable the logic circuitry () for the designated usage only, when the key (K) is transferred to the register(s) (), the key (K) being a decryption of the data element (C) with the response (Re) as the encryption key.