Information processing device, information processing method, and program
AssigneeSony Corporation
InventorsHiroshi Kuno, Kenjiro Ueda, Munetake Ebihara, Takamichi Hayashi, Koji Yoshimura
Life of this patent
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Abstract
An information processing device including: a data processing unit that generates an encryption key of content; and a communication unit that transmits an encryption key generated by the data processing unit, wherein the data processing unit generates, as the encryption key, individual keys that are different for each new content recording processing on a recording medium in a content recording device, and transmits the individual keys through the communication unit.
Claims15
An information processing device comprising:
- a data processing unit that generates an encryption key of content;
- and
- a communication unit that transmits the encryption key generated by the data processing unit,
- wherein the data processing unit generates, as the encryption key, individual keys that are different for each new content recording processing on a recording medium in a content recording device, and transmits the individual keys through the communication unit.
An information processing device comprising a data processing unit that executes content recording processing on a recording medium,
- wherein the data processing unit has a configuration executing recording processing on the recording medium by reading individual keys recorded in a protected area that is an access restricted area set by the recording medium, and executing encryption processing, applying the individual keys, of content received from a server or content read from the information recording medium, and
- when carrying out reading processing of the individual keys, reading from a protected area of the individual keys is executed by presenting a certificate that has access permission information recorded therein to the recording medium, providing that recording information verification processing of a certificate of the recording medium is carried out.
An information processing device comprising a data processing unit that executes decryption processing on encrypted content recorded on a recording medium,
- wherein the data processing unit has a configuration reading individual keys recorded in a protected area that is an access restricted area set by the recording medium, and executing decryption processing of the encrypted content applying the individual keys, and
- when carrying out reading processing of the individual keys, reading from a protected area of the individual keys is executed by presenting a certificate that has access permission information recorded therein to the recording medium, providing that recording information verification processing of a certificate of the recording medium is carried out.
A content management system comprising:
- a recording medium;
- a recording device that executes content recording processing on the recording medium;
- and
- a server that provides an encryption key of the content,
- wherein the server generates individual keys that are different for each new content recording processing on a recording medium in the content recording device and records the individual keys on a protected area of the recording medium with restricted access,
- the recording device has a configuration executing recording processing on the recording medium by reading individual keys recorded on the protected area, and executing encryption processing, applying the individual keys, of content received from a server or content read from the information recording medium, and
- the recording medium verifies recorded information of a certificate on which access permission information for each device is recorded according to an access request to the protected area from the server and the recording device, and performs processing of permitting access in a case when it is verified that there is access authority.
An information processing method that is executed on a server, comprising:
- data processing of generating an encryption key of content by a data processing unit;
- and
- communicating of transmitting an encryption key generated by the data processing unit, by a communication unit,
- wherein the data processing generates, as the encryption key, individual keys that are different for each new content recording processing on a recording medium in a content recording device, and transmits the individual keys through the communication unit.
An information processing method that is executed in an information processing device, comprising data processing of executing content recording processing on a recording medium, by a data processing unit,
- wherein the data processing includes recording processing on the recording medium by reading individual keys recorded on a protected area that is an access restricted area set by the recording medium, and executing encryption processing, applying the individual keys, of content received from a server or content read from an information recording medium,
- wherein, when carrying out reading processing of the individual keys, reading from a protected area of the individual keys is executed by presenting a certificate that has access permission information recorded therein to the recording medium, providing that recording information verification processing of a certificate of the recording medium is carried out.
An information processing method that is an information processing method executed in an information reproduction device, comprising data processing of executing decryption processing of encrypted content recorded on a recording medium, by a data processing unit,
- wherein the data processing includes reading of individual keys recorded in a protected area that is an access restricted area set by the recording medium, and executing decryption processing of the encrypted content applying the individual keys,
- wherein, when carrying out reading processing of the individual keys, reading from a protected area of the individual keys is executed by presenting a certificate that has access permission information recorded therein to the recording medium, providing that recording information verification processing of a certificate of the recording medium is carried out.
A program that executes information processing on a server, comprising data processing of generating an encryption key of content, by a data processing unit, and communicating of transmitting an encryption key generated by the data processing unit, by a communication unit,
- wherein in the data processing, individual keys that are different for each new content recording processing on a recording medium in a content recording device are generated as the encryption key, and are transmitted through the communication unit.
A program that executes information processing in an information recording device, comprising data processing of executing content recording processing on a recording medium by a data processing unit,
- wherein the data processing includes recording processing on the recording medium by reading individual keys recorded in a protected area that is an access restricted area set by the recording medium, and executing encryption processing, applying the individual keys, of content received from a server or content read from the information recording medium,
- wherein, when carrying out reading processing of the individual keys, reading from a protected area of the individual keys is executed by presenting a certificate that has access permission information recorded therein to the recording medium, providing that recording information verification processing of a certificate of the recording medium is carried out.
A program that executes information processing in an information reproduction device, comprising data processing of executing decryption processing of encrypted content recorded on a recording medium, by a data processing unit,
- wherein the data processing includes reading of individual keys recorded in a protected area that is an access restricted area set by the recording medium, and executes decryption processing of the encrypted content applying the individual keys,
- wherein, when carrying out reading processing of the individual keys, reading from a protected area of the individual keys is executed by presenting a certificate that has access permission information recorded therein to the recording medium, providing that recording information verification processing of a certificate of the recording medium is carried out.
Dependencies are inferred from the claim text.