发明申请
US20090316910A1 METHOD AND DEVICE FOR MANAGING CRYPTOGRAPHIC KEYS IN SECRET COMMUNICATIONS NETWORK
有权
用于管理秘密通信网络中的CRYPTOGRAPHIC KEYS的方法和设备
- 专利标题: METHOD AND DEVICE FOR MANAGING CRYPTOGRAPHIC KEYS IN SECRET COMMUNICATIONS NETWORK
- 专利标题(中): 用于管理秘密通信网络中的CRYPTOGRAPHIC KEYS的方法和设备
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申请号: US12136419申请日: 2008-06-10
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公开(公告)号: US20090316910A1公开(公告)日: 2009-12-24
- 发明人: Wakako Maeda , Akio Tajima , Akihiro Tanaka , Seigo Takahashi
- 申请人: Wakako Maeda , Akio Tajima , Akihiro Tanaka , Seigo Takahashi
- 申请人地址: JP Tokyo
- 专利权人: NEC CORPORATION
- 当前专利权人: NEC CORPORATION
- 当前专利权人地址: JP Tokyo
- 优先权: JP2007-153807 20070611
- 主分类号: H04L9/08
- IPC分类号: H04L9/08 ; H04L9/14
摘要:
A cryptographic key management method and device are provided by which cryptographic keys of multiple nodes can be managed easily and stably. A system includes at least one first node and a plurality of second nodes connected to the first node, and the first node individually generates and consumes a cryptographic key with each of the second nodes connected to the first node itself. A cryptographic key management device in such a system has a monitor that monitors the stored key amounts of cryptographic keys of the individual second nodes, stored at the first node, and a key management control section that performs key generation control on the first node, based on the stored key amounts.