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. 13, 2011
Filed:
Oct. 10, 2007
Yoko Hashimoto, Yokohama, JP;
Takahiro Fujishiro, Yokohama, JP;
Tadashi Kaji, Yokohama, JP;
Osamu Takata, London, GB;
Kazuyoshi Hoshino, Tokyo, JP;
Yoko Hashimoto, Yokohama, JP;
Takahiro Fujishiro, Yokohama, JP;
Tadashi Kaji, Yokohama, JP;
Osamu Takata, London, GB;
Kazuyoshi Hoshino, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
To solve problems in that a load on a VPN device is large in a case where the number of terminal devices increases in encrypted communication using a VPN technique, and that only communication between the terminal device and the VPN device is encrypted, thus disabling end-to-end encrypted communication, a communication system is provided, including: a terminal device; a plurality of blades; and a management server that manages the blades, in which: the management server selects a blade, authenticates the terminal device and the selected blade, and mediates encrypted communication path establishment between the terminal device and the selected blade; the terminal device and the blade perform encrypted communication without the mediation of the management server; and the management server requests a validation server to authenticate each terminal.