METHOD TO AUTHENTICATE DATA PROCESSING APPARATUS HAVING RECORDING DEVICE AND APPARATUSES THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide an enhanced authentication method, recording device side authentication apparatus and recording device writable/readable only via an authenticated recording medium in a data processing apparatus having the recording medium on which data can be recorded.

SOLUTION: The authentication method to ensure permissible recording of data and/or reproducing of data to/from a recording device in a data processing apparatus having a host to process data and the recording device to store and reproduce data processed or to be processed by the host, includes the steps of: authenticating the recording device via the host; authenticating the host via the recording device; and performing recording of data to and/or reproduction of data from the recording device upon determining that the host and the recording device have authenticated each other in the authentication step.

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