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:
Jul. 14, 2015
Filed:
Feb. 20, 2012
Kyoji Shibutani, Tokyo, JP;
Toru Akishita, Tokyo, JP;
Takanori Isobe, Tokyo, JP;
Taizo Shirai, Kanagawa, JP;
Harunaga Hiwatari, Kanagawa, JP;
Atsushi Mitsuda, Tokyo, JP;
Kyoji Shibutani, Tokyo, JP;
Toru Akishita, Tokyo, JP;
Takanori Isobe, Tokyo, JP;
Taizo Shirai, Kanagawa, JP;
Harunaga Hiwatari, Kanagawa, JP;
Atsushi Mitsuda, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A miniaturized non-linear conversion unit is achieved. Included is an encryption processing part configured to divide and input configuration bits of data to be processed into a plurality of lines, and to repeatedly execute a data conversion processing applying a round function as to the data in each line, wherein the encryption processing part includes an F function executing unit configured to input one line of data configuring the plurality of lines, and to generate conversion data, wherein the F function executing unit includes a non-linear conversion processing unit configured to execute a non-linear conversion processing, and wherein the non-linear conversion processing unit includes a repeating structure of a non-linear calculation unit made up from either one NAND or NOR, and either one XOR or XNOR calculation unit, and a bit replacement unit. The miniaturized non-linear conversion unit is achieved by this repeating configuration.