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:
Aug. 11, 2015
Filed:
Aug. 28, 2012
Applicants:
Shinichi Baba, Bristol, GB;
Yoshimichi Tanizawa, Kanagawa, JP;
Hideaki Sato, Kanagawa, JP;
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
H04L 9/08 (2013.01); H04L 9/0852 (2013.01); H04L 9/0861 (2013.01); H04L 9/0894 (2013.01);
Abstract
According to an embodiment, a communication apparatus includes a key storage unit configured to store therein a cryptographic key; a receiving unit configured to receive a message; an analyzing unit configured to analyze whether the message includes an access request for the cryptographic key; a generating unit configured to, when the message includes the access request, generate request information used to request an access to the cryptographic key requested by the access request; and an access controller configured to control the access to the cryptographic key based on the request information.