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:
Dec. 08, 2015
Filed:
Feb. 07, 2013
Sony Corporation, Minato-ku, JP;
Seiichi Matsuda, Tokyo, JP;
Shiho Moriai, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
Speed-up of a cryptographic process by software (program) is realized. A data processing unit which executes a data process according to a program defining a cryptographic process sequence is included, and the data processing unit, according to the program, generates a bit slice expression data based on a plurality of plain text data items which are encryption process targets and a bit slice expression key based on a cryptographic key of each plain text data item, generates a round key based on the bit slice expression key, executes the cryptographic process including operation and movement processes of a block unit of the bit slice expression data, and an operation using the round key, and generates the plurality of encrypted data items corresponding to the plurality of plain text data items by the reverse conversion of the data with respect to the cryptographic process results.