发明授权
US08223972B2 Method and device for speeding up key use in key management software with tree structure
有权
用于树结构的密钥管理软件中加密密钥使用的方法和装置
- 专利标题： Method and device for speeding up key use in key management software with tree structure
- 专利标题（中）： 用于树结构的密钥管理软件中加密密钥使用的方法和装置
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申请号： US12146255申请日： 2008-06-25
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公开(公告)号： US08223972B2公开(公告)日： 2012-07-17
- 发明人: Takayuki Ito , Hideki Matsushima , Hisashi Takayama , Tomoyuki Haga , Yuichi Futa , Manabu Maeda
- 申请人： Takayuki Ito , Hideki Matsushima , Hisashi Takayama , Tomoyuki Haga , Yuichi Futa , Manabu Maeda
- 申请人地址： JP Osaka
- 专利权人： Panasonic Corporation
- 当前专利权人： Panasonic Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： Wenderoth, Lind & Ponack, L.L.P.
- 优先权： JP2007-166318 20070625
- 主分类号： H04L9/00
- IPC分类号： H04L9/00
摘要：
In the key management software having a key database with a tree structure, a high-speed data encryption/decryption process is achieved by changing the tree structure without reducing the security strength when deleting or adding a key from/to the tree structure. The key management software having the key database with the tree structure, when deleting or adding a key from/to the tree structure, refers to the encryption strength comparison table and the process time comparison table to change the tree structure without reducing the security strength. This reduces the number of times an encrypted key is loaded onto the encryption/decryption processing device during the data encryption/decryption process, thus achieving a high-speed data encryption/decryption.