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:
Apr. 16, 2013
Filed:
Jan. 10, 2011
Seonghan Shin, Chiyoda-ku, JP;
Kazukuni Kobara, Chiyoda-ku, JP;
Seonghan Shin, Chiyoda-ku, JP;
Kazukuni Kobara, Chiyoda-ku, JP;
National Institute of Advanced Industrial Science and Technology, Chiyoda-Ku, Tokyo, JP;
Abstract
There is provided an authentication method which is secure against various attacks such as a KCI attack on a public network, and can reduce a required calculation amount compared to a conventional method. In this authentication method, a mutual authentication processing technique using Diffie-Hellman type key exchange is modified to compute a master secret Ks in a server by Ks=g, where y is a random number (yε(Z/qZ)*) generated by the server. In this method, let (G,·) be a group of order q, g be a generator of that set G, and U, WεG. '·' is a binary operator on G.