发明名称 |
MANAGEMENT SERVICE DEVICE, BACKUP SERVICE DEVICE, COMMUNICATION TERMINAL DEVICE, AND STORAGE MEDIUM |
摘要 |
It is an object to provide a method for invalidation and new registration of a storage medium, a method for backup of data stored in a storage medium and for restoration of backup data to a storage medium, and a method for encryption of and application of an electronic signature to data to be backed up, and for decryption of backup data to be restored and verification of a signature. A service device includes a reception unit for receiving a request for data processing regarding a storage medium from a communication terminal device connected to the storage medium, an authentication unit for performing authentication of whether or not the storage medium connected to the communication terminal device is valid, and a database for storing a public key of the storage medium, wherein, when the reception unit receives a request for invalidation of the first storage medium from the communication terminal device, and the authentication unit authenticates the second storage medium connected to the communication terminal device as a valid storage medium, the database deletes the public key of the first storage medium stored in the database. |
申请公布号 |
EP1783614(A1) |
申请公布日期 |
2007.05.09 |
申请号 |
EP20040771844 |
申请日期 |
2004.08.19 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
BABA, AKIHIRO;SAKURAI, SHOUJI;KONDO, SEIICHI;MUNAKA, TATSUJI;SAWAMURA, MARIKO |
分类号 |
G06F12/14;G06F15/00;G06F21/34;G06F21/62;G06F21/88;G06K17/00 |
主分类号 |
G06F12/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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