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:
May. 14, 2019
Filed:
Mar. 09, 2015
Applicant:
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Inventors:
Yoshimichi Tanizawa, Yokohama, JP;
Hideaki Sato, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/06 (2006.01); H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
H04L 63/0428 (2013.01); H04L 9/0656 (2013.01); H04L 9/0852 (2013.01); H04L 63/061 (2013.01);
Abstract
According to an embodiment, a communication system includes a plurality of communication apparatuses. Each of the communication apparatuses includes a key generator and a synchronization processor. The key generator generates shared keys shared with another communication apparatus. The synchronization processor synchronizes at least one of order of using the generated shared keys and roles played when the generated shared keys are used, with another communication apparatus based on a rule determined in advance.