Information processing apparatus, information processing method, and program

An information process system comprising:

• a drive configured to perform data reading from a data recordable disc;
• and
• an information processing apparatus including a data processing unit that obtains data read from the data recordable disc via the drive and that performs data processing,
• wherein the drive
• performs a physical mark verification process for verifying whether or not a physical mark that is identification data unique to each of mother discs used when the data recordable disc was manufactured has been recorded on the data recordable disc, and
• outputs the recorded data of the data recordable disc to the information processing apparatus under a condition in which the recording of the physical mark has been confirmed in the physical mark verification process, and
• wherein the data processing unit
• performs a signature verification process for obtaining, from the data recordable disc, a token containing an electronic signature generated on the basis of the medium ID that is an identifier unique to each data recordable disc by a content providing server that provided the recorded content of the data recordable disc, and for performing signature verification, and
• reproduces the recorded content of the data recordable disc under a condition in which the signature verification in the signature verification process holds true.

An information processing apparatus comprising:

• a data processing unit configured to perform data processing on data read from a data recordable disc,
• wherein the data processing unit
• obtains, from the data recordable disc, a token containing an electronic signature generated by a content providing server that provided the recorded content of the data recordable disc, and performs a signature verification process, and
• reproduces the recorded content of the data recordable disc under a condition in which the signature verification in the signature verification process holds true, and
• wherein the token is a token containing an electronic signature generated on the basis of a computation operation result of a physical mark that is identification data unique to each of mother discs used when the data recordable disc was manufactured, and a medium ID that is an identifier unique to each data recordable disc, the physical mark and the medium ID being recorded on the data recordable disc.

An information processing apparatus comprising:

• a data processing unit configured to perform data processing on data read from a data recordable disc,
• wherein the data processing unit
• obtains, from the data recordable disc, a physical mark that is identification data unique to each of mother discs used when the data recordable disc was manufactured, and a medium ID that is an identifier unique to each data recordable disc, and transmits the physical mark and the medium ID to a content providing server, and
• receives, from the content providing server, a token containing an electronic signature generated on the basis of the computation operation result of the physical mark and the medium ID, and content, and records the token and the content on the data recordable disc.

An information processing method for performing data processing on data read from a data recordable disc in an information processing apparatus, the information processing method comprising the steps of:

• verifying, by using a data processing unit, whether or not a physical mark that is identification data unique to each of mother discs used when the data recordable disc was manufactured has been recorded on the data recordable disc;
• obtaining, by using a data processing unit, from the data recordable disc, a token containing an electronic signature generated on the basis of a medium ID that is an identifier unique to each data recordable disc by a content providing server that provided the recorded content of the data recordable disc, and performing signature verification;
• and
• reproducing, by using a data processing unit, recorded content of the data recordable disc under a condition in which the recording of the physical mark in the physical mark verification process has been confirmed and the signature verification in the signature verification process holds true.

An information processing method for performing data processing on data read from a data recordable disc in an information processing apparatus, the information processing method comprising the steps of:

• performing, by using a data processing unit, a computation process of a physical mark that is identification data unique to each of mother discs used when the data recordable disc was manufactured, and a medium ID that is an identifier unique to each data recordable disc;
• obtaining, by using a data processing unit, from the data recordable disc, a token containing an electronic signature generated by a content providing server that provided the recorded content of the data recordable disc, and performing a signature verification process including a process for comparing data generated on the basis of the electronic signature with the resulting data of the computation operation process;
• and
• reproducing recorded content of the data recordable disc under a condition in which the signature verification in the signature verification process holds true.

A non-transitory recording medium including a program for processing data read from a recordable medium, the program comprising the steps of:

• causing a data processing unit to verify whether or not a physical mark that is identification data unique to each of mother discs used when the data recordable disc was manufactured has been recorded on the data recordable disc;
• causing the data processing unit to obtain, from the data recordable disc, a token containing an electronic signature generated on the basis of a medium ID that is an identifier unique to each data recordable disc by a content providing server that provided the recorded content of the data recordable disc, and to perform signature verification;
• and
• causing the data processing unit to reproduce recorded content of the data recordable disc under a condition in which the recording of the physical mark in the physical mark verification process has been confirmed and the signature verification in the signature verification process holds true.

A non-transitory recording medium including a program for processing data read from a recordable medium, the program comprising the steps of:

• causing a data processing unit to perform a computation process of a physical mark that is identification data unique to each of mother discs used when a data recordable disc was manufactured, and a medium ID that is an identifier unique to each data recordable disc;
• causing the data processing unit to obtain, from the data recordable disc, a token containing an electronic signature generated by a content providing server that provided the recorded content of the data recordable disc, and to perform a signature verification process including a process for comparing data generated on the basis of the electronic signature with the resulting data of the computation operation process;
• and
• reproducing recorded content of the data recordable disc under a condition in which the signature verification in the signature verification process holds true.