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:
Feb. 07, 2006
Filed:
Sep. 30, 2004
Kaoru Yokota, Ashiya, JP;
Motoji Ohmori, Hirakata, JP;
Masami Yamamichi, Legal Representative, Ohta, JP;
Satomi Yamamichi, Legal Representative, Ota, JP;
Keiko Yamamichi, Legal Representative, Maebashi, JP;
Makoto Tatebayashi, Takarazuka, JP;
Makoto Usui, Osaka, JP;
Kaoru Yokota, Ashiya, JP;
Motoji Ohmori, Hirakata, JP;
Masami Yamamichi, legal representative, Ohta, JP;
Satomi Yamamichi, legal representative, Ota, JP;
Keiko Yamamichi, legal representative, Maebashi, JP;
Makoto Tatebayashi, Takarazuka, JP;
Makoto Usui, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A data converter () capable of reducing a size of the total implementation in a device is a processing apparatus that performs secret converting processing predetermined to input data with 64 bits, the data converter including a finite field polynomial cubing unit (), data integrating units () to (), () and (), a first converter (), a second converter (), a data splitting unit (), and a data integrating unit (). The finite field polynomial cubing unit () performs cubing, on the 32 bits data, in the polynomial residue class ring with a value in the finite field GF (2) as a coefficient and respectively outputs data with 32 bits.