Recording medium apparatus and controller

A recording medium device comprising:

• a storage unit;
• and
• a tamper-resistant controller,
• the storage unit storing a content and a revocation list including a revocation identifier that is associated with the content and identifies a revoked apparatus related to use of the content, and
• the controller including:
• an acquisition unit configured to acquire an acquisition request related to the content from an apparatus into which the recording medium device is loaded and to acquire an apparatus identifier identifying the apparatus;
• a judgment unit configured to judge whether the acquired apparatus identifier matches the revocation identifier associated with the content to which the acquisition request is related;
• and
• a control unit configured to control to prohibit output of the content to the apparatus when the judgment unit judges that the apparatus identifier and the revocation identifier match.

A system comprising a recording medium device and an apparatus into which the recording medium device is loaded,

• the recording medium device including a storage unit and a tamper-resistant controller,
• the storage unit storing a content and a revocation list including a revocation identifier that is associated with the content and identifies a revoked apparatus related to use of the content, and
• the controller including:
• an acquisition unit configured to acquire an acquisition request related to the content from an apparatus into which the recording medium device is loaded and to acquire an apparatus identifier identifying the apparatus;
• a judgment unit configured to judge whether the acquired apparatus identifier matches the revocation identifier associated with the content to which the acquisition request is related;
• and
• a control unit configured to control to output of the content to the apparatus when the judgment unit judges that the apparatus identifier and the revocation identifier match.

A control method used in a tamper-resistant controller, the controller and a storage unit constituting a recording medium device,

• the storage unit storing a content and a revocation list including a revocation identifier that is associated with the content and identifies a revoked apparatus related to use of the content, and
• the control method comprising the steps of:
• acquiring an acquisition request related to the content from an apparatus into which the recording medium device is loaded and acquiring an apparatus identifier identifying the apparatus;
• judging whether the acquired apparatus identifier matches the revocation identifier associated with the content to which the acquisition request is related;
• and
• controlling to prohibit output of the content to the apparatus when the apparatus identifier and the revocation identifier are judged to match in the judging step.

A computer-readable recording medium having recorded thereon a computer program for control used in a tamper-resistant controller, the controller and a storage unit constituting a recording medium device,

• the storage unit storing a content and a revocation list including a revocation identifier that is associated with the content and identifies a revoked apparatus related to use of the content,
• the controller being a computer, and
• the computer program causing the computer to perform the steps of:
• acquiring an acquisition request related to the content from an apparatus into which the recording medium device is loaded and acquiring an apparatus identifier identifying the apparatus;
• judging whether the acquired apparatus identifier matches the revocation identifier associated with the content to which the acquisition request is related;
• and
• controlling to prohibit output of the content to the apparatus when the apparatus identifier and the revocation identifier are judged to match in the judging step.

A computer program for control used in a tamper-resistant controller, the controller and a storage unit constituting a recording medium device,

• the storage unit storing a content and a revocation list including a revocation identifier that is associated with the content and identifies a revoked apparatus related to use of the content,
• the controller being a computer, and
• the computer program causing the computer to perform the steps of:
• acquiring an acquisition request related to the content from an apparatus into which the recording medium device is loaded and acquiring an apparatus identifier identifying the apparatus;
• judging whether the acquired apparatus identifier matches the revocation identifier associated with the content to which the acquisition request is related;
• and
• controlling to prohibit output of the content to the apparatus when the apparatus identifier and the revocation identifier are judged to match in the judging step.

A tamper-resistant controller, the controller and a storage unit constituting a recording medium device,

• the storage unit storing a content and a revocation list including a revocation identifier that is associated with the content and identifies a revoked apparatus related to use of the content, and
• the controller including:
• an acquisition unit configured to acquire an acquisition request related to the content from an apparatus into which the recording medium device is loaded and to acquire an apparatus identifier identifying the apparatus;
• a judgment unit configured to judge whether the acquired apparatus identifier matches the revocation identifier associated with the content to which the acquisition request is related;
• and
• a control unit configured to control to output of the content to the apparatus when the judgment unit judges that the apparatus identifier and the revocation identifier match.