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:
Jan. 04, 2011
Filed:
Mar. 08, 2001
Mitsuru Matsui, Tokyo, JP;
Toshio Tokita, Tokyo, JP;
Junko Nakajima, Tokyo, JP;
Masayuki Kanda, Tokyo, JP;
Shiho Moriai, Tokyo, JP;
Kazumaro Aoki, Tokyo, JP;
Mitsuru Matsui, Tokyo, JP;
Toshio Tokita, Tokyo, JP;
Junko Nakajima, Tokyo, JP;
Masayuki Kanda, Tokyo, JP;
Shiho Moriai, Tokyo, JP;
Kazumaro Aoki, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
It is desired to share one circuit by an encryption unitand a decryption unit. A normal data transformation unit (FL)and an inverse data transformation unit (FL)are located at point symmetry on a non-linear data transformation unit, and a normal data transformation unit (FL)and an inverse data transformation unit (FL)are located at point symmetry on the non-linear data transformation unit. Therefore, the encryption unitand the decryption unitcan be configured using the same circuits.