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. 30, 2014
Filed:
Mar. 16, 2012
Taichi Isogai, Tokyo, JP;
Kenichiro Furuta, Tokyo, JP;
Hirofumi Muratani, Kanagawa, JP;
Kenji Ohkuma, Kanagawa, JP;
Tomoko Yonemura, Kanagawa, JP;
Yoshikazu Hanatani, Tokyo, JP;
Atsushi Shimbo, Tokyo, JP;
Hanae Ikeda, Tokyo, JP;
Yuichi Komano, Kanagawa, JP;
Taichi Isogai, Tokyo, JP;
Kenichiro Furuta, Tokyo, JP;
Hirofumi Muratani, Kanagawa, JP;
Kenji Ohkuma, Kanagawa, JP;
Tomoko Yonemura, Kanagawa, JP;
Yoshikazu Hanatani, Tokyo, JP;
Atsushi Shimbo, Tokyo, JP;
Hanae Ikeda, Tokyo, JP;
Yuichi Komano, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An arithmetic device includes an input unit inputting data that are elements of a group; a converting unit is configured, when the input data are in a second representation, to convert the input data into a first representation and to perform arithmetic operation on the converted first representation using an operand in the first representation in which at least one subcomponent is a zero element to convert the converted first representation into first converted data expressed in the first representation, and when the input data are in the first representation, to perform arithmetic operation on the input data using the operand in the first representation in which at least one subcomponent is a zero element to convert the input data into second converted data expressed in the first representation; and an operating unit that performs arithmetic processing on the first or the second converted data using secret information.