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:
Feb. 02, 2010
Filed:
Aug. 16, 2006
Akifumi Yato, Kawasaki, JP;
Tadashi Kaji, Yokohama, JP;
Osamu Takata, Tokyo, JP;
Takahiro Fujishiro, Yokohama, JP;
Kazuyoshi Hoshino, Tokyo, JP;
Akifumi Yato, Kawasaki, JP;
Tadashi Kaji, Yokohama, JP;
Osamu Takata, Tokyo, JP;
Takahiro Fujishiro, Yokohama, JP;
Kazuyoshi Hoshino, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Each terminal registers the key generation information into each session management server, the information including a plurality of setting items necessary for determining set values to generated a key to be used by itself, and set value candidates which are stored in the setting items. When the encryption communications are established between the terminals, the individual session management servers and a key generation information management server are associated, so that the key generation information management server selects the algorithm suite based on the key generation information. The session management server generates the parameters based on the selected algorithm suite, acquires the information on the selected algorithm suite from the key generation information management server, generates the key for the encryption communications based on that information and distributes the key to the each terminal.