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. 06, 2022
Filed:
Oct. 09, 2020
Infineon Technologies Ag, Neubiberg, DE;
Infineon Technologies AG, Neubiberg, DE;
Abstract
A data cryptographic device may include a pre-tweak generator to generate pre-tweak values, a pre-tweak value cache memory to store one or more pre-tweak values generated by the pre-tweak generator, and a pre-tweak value selector to check whether a pre-tweak value for an input memory address is stored in the pre-tweak value cache memory. The data cryptographic device may further include a tweak generator to generate a tweak value based on the selected pre-tweak value, and a block cipher to perform at least one block cipher algorithm to at least one of encrypt data, encrypt and authenticate data, decrypt encrypted data, decrypt and verify encrypted and authenticated data, using a cryptographic key and the generated tweak value.