| 摘要 |
<p>A storage device sends its storage-device-specific information A to a client apparatus. The client apparatus generates an encryption key P1, using client-apparatus key generation information B 1 specific to the client apparatus and the received information A. The client apparatus generates information D' by encrypting its client-apparatus-specific information D, using the encryption key P1, and sends the information D' to the storage device. The storage device stores the information D'. When the storage device authenticates a client apparatus, the storage device has the client apparatus generate information D' through the process as described above and judges whether or not the information D' stored in the storage device matches the information D' generated by the client apparatus being examined.</p> |
