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. 26, 2023
Filed:
Jun. 12, 2019
Nordic Semiconductor Asa, Trondheim, NO;
Matti Tiikkainen, Trondheim, NO;
Nordic Semiconductor ASA, Trondheim, NO;
Abstract
A hardware accelerator is arranged to perform cipher operations and comprises a first memory area arranged to store a first bit string and a second memory area arranged to store a second bit string. A calculation block is arranged to receive a round key and to perform a function on the first bit string. The function comprises combining the first bit string with the round key to produce a combined bit string and performing a non-linear mapping from the combined bit string to a mapped bit string. An addition block is arranged to add the mapped bit string to the second bit string to produce a resultant bit string. A controller is arranged to receive a control signal and, depending on the state of the control signal, provides the first bit string and the resultant bit string to the appropriate memory area.