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, 2013
Filed:
May. 28, 2012
Marco Macchetti, Lodi, IT;
Stefano Marchesin, Udine, IT;
Umberto Bondi, Porza, CH;
Luca Breveglieri, Seregno, IT;
Guido Bertoni, Cusan Milianino, IT;
Pasqualina Fragneto, Burago di Molgora, IT;
Marco Macchetti, Lodi, IT;
Stefano Marchesin, Udine, IT;
Umberto Bondi, Porza, CH;
Luca Breveglieri, Seregno, IT;
Guido Bertoni, Cusan Milianino, IT;
Pasqualina Fragneto, Burago di Molgora, IT;
STMicroelectronics S.R.L., Agrate Brianza (MB), IT;
Abstract
Data are converted between an unencrypted and an encrypted format according to the Rijndael algorithm, including a plurality of rounds. Each round is comprised of a fixed set of transformations applied to a two-dimensional array, designating states, of rows and columns of bit words. At least a part of the transformations are applied on a transposed version of the state, wherein rows and columns are transposed for the columns and rows, respectively.