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:
Sep. 01, 2015
Filed:
May. 25, 2012
Yuji Nagai, Sagamihara, JP;
Taku Kato, Kamakura, JP;
Tatsuyuki Matsushita, Tokyo, JP;
Shinichi Matsukawa, Tokyo, JP;
Yasufumi Tsumagari, Kawasaki, JP;
Yuji Nagai, Sagamihara, JP;
Taku Kato, Kamakura, JP;
Tatsuyuki Matsushita, Tokyo, JP;
Shinichi Matsukawa, Tokyo, JP;
Yasufumi Tsumagari, Kawasaki, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
Abstract
A first data generation unit generates identification key information (FKey) that may be decrypted from the identification key information (IDKey) using key management information (FKB) read from an authenticatee. A decryption unit decrypts encrypted secret identification information (E-SecretID) using the identification key information (FKey) to generate secret identification information (SecretID). A second data generation unit generates a first session key (Skey) using the first key information (Hkey) and a random number. A one-way conversion unit performs a one-way conversion process on the secret identification information (SecretID) using the generated first session key (SKey) to generate first one-way conversion data (Oneway-ID).