发明授权
US07979052B2 Communication method, communication system, key management device, relay device and recording medium
有权
通信方式，通信系统，密钥管理设备，中继设备和记录介质
- 专利标题： Communication method, communication system, key management device, relay device and recording medium
- 专利标题（中）： 通信方式，通信系统，密钥管理设备，中继设备和记录介质
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申请号： US11928691申请日： 2007-10-30
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公开(公告)号： US07979052B2公开(公告)日： 2011-07-12
- 发明人: Shingo Fujimoto , Ryuichi Matsukura , Motoshi Sumioka , Satoshi Okuyama
- 申请人： Shingo Fujimoto , Ryuichi Matsukura , Motoshi Sumioka , Satoshi Okuyama
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Fujitsu Patent Center
- 优先权： JP2006-294662 20061030; JP2007-224324 20070830
- 主分类号： H04M1/66
- IPC分类号： H04M1/66
摘要：
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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