Title:
通信方法、通信システム、鍵管理装置、中継装置及びコンピュータプログラム
Document Type and Number:
Japanese Patent JP4841519
Kind Code:
B2
Abstract:
A key management device for communicating with relay devices is provided, and one of the relay devices, which is communicating with a communication device based on master key information, transmits the master key information to the key management device. If the communication with the communication device has been enabled, the other relay devices makes a request to the key management device for transmission of the master key information. Then, the key management device transmits the master key information, which has been received from the one of the relay devices, to the other relay device, and then the other relay device can communicates with the communication device using the received master key information.
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Inventors:
Shingo Fujimoto
Ryuichi Matsukura
Kakuoka Mikiatsu
Satoshi Okuyama
Ryuichi Matsukura
Kakuoka Mikiatsu
Satoshi Okuyama
Application Number:
JP2007224324A
Publication Date:
December 21, 2011
Filing Date:
August 30, 2007
Export Citation:
Assignee:
富士通株式会社
International Classes:
H04L9/08; H04L9/32; H04M11/00; H04W12/04; H04W36/00; H04W84/12
Domestic Patent References:
| JP2001111543A | ||||
| JP2003259417A | ||||
| JP2005142848A | ||||
| JP200641641A | ||||
| JP2006222549A |
Foreign References:
| WO2006003859A1 |
Other References:
ARUNESH MISHRA, MIN HO SHIN, NICK L. PETRONI JR., CHARLES CLANCY, AND WILLIAM A. ARBAUGH,“PROACTIVE KEY DISTRIBUTION USING NEICHBOR GRAPHS”,IEEE WIRELESS COMMUNICATIONS,[online],2004年 2月,Volume 11, Issue 1,p.26-36,[retrieved on 2011-09-16]. Retrieved from the Internet,URL,
Attorney, Agent or Firm:
Nobuo Kono