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. 03, 2012
Filed:
Dec. 08, 2008
Masafumi Kusakawa, Tokyo, JP;
Seiichi Matsuda, Tokyo, JP;
Tomoyuki Asano, Kanagawa, JP;
Harunaga Hiwatari, Tokyo, JP;
Masafumi Kusakawa, Tokyo, JP;
Seiichi Matsuda, Tokyo, JP;
Tomoyuki Asano, Kanagawa, JP;
Harunaga Hiwatari, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A key generating device according to an embodiment of the present invention includes: a parameter determining unit that randomly determines a plurality of parameters that are needed when generating a secret key and a public key; a bilinear group selecting unit that selects a plurality of bilinear groups and bilinear mapping on the basis of the plurality of parameters; and a key generating unit that generates the secret key and the public key on the basis of the parameters and the plurality of bilinear groups.