JP2009093767A - Information processing apparatus, disk, information processing method, and computer program - Google Patents

Abstract

Copy permission information of a disk recording content can be acquired without connecting to an external server.
An IC chip on which usage control information indicating whether or not copying processing of disc recorded content is allowed is provided on a content recording disc, and the disc recorded content is referred to with reference to the usage control information read from the IC chip. Whether or not copying is possible is determined. According to this configuration, it is not necessary to receive the copy permission information performed in the conventional system from the external server, and the information processing apparatus can determine whether the copy is permitted based on the usage control information read from the IC chip. Thus, it is possible to perform copy processing based on confirmation of permission information.
[Selection] Figure 4

Description

  The present invention relates to an information processing device, a disk, an information processing method, and a computer program. More specifically, the present invention relates to an information processing apparatus, a disk, an information processing method, and a computer program that perform use control of content stored in an information recording medium.

  Discs such as a DVD (Digital Versatile Disc) and a Blu-ray Disc (registered trademark) are used as content recording media. For example, when movie content or the like is recorded on a disc (for example, a ROM disc) and is provided to the user, these disc-recorded content is content whose copyright or distribution right is held by the creator or distributor. There are many. For such content, for example, in order to prevent unauthorized copying (duplication) or the like, a certain usage control configuration is adopted.

  There is AACS (Advanced Access Content System) as a standard for content copyright protection. AACS defines copyright protection technology based on advanced common key encryption (AES encryption). According to the AACS regulations, when content use processing, for example, content playback from a disc or content copy recording processing is performed, identification information recorded on the disc, for example, PMSN (Pre-recorded Media Serial Number) which is disc-specific identification information ) And the like, and it is necessary to perform processing according to a sequence defined by AACS, for example, authentication processing and encryption processing. In the case of a content storage disc that complies with the AACS rules, PMSN, which is disc-specific identification information, is recorded in the BCA (Burst Cutting Area) of the disc.

  The BCA area is an area different from the normal data recording area, and data is recorded by physical cutting different from the normal data recording method. Therefore, it is difficult to rewrite the recorded data in the BCA area, and a special reading process different from the normal data reproducing process is required also in the reproducing process.

  With reference to FIGS. 1 and 2, description will be given of a reproduction process of disc recorded content in accordance with AACS regulations and a copy processing sequence for other media such as a hard disk such as a disc recorded content.

  FIG. 1 is a diagram for explaining a playback sequence of disc recorded content in accordance with AACS regulations. FIG. 1 shows a disc 10 storing content from the left, a drive 20 that loads the disc 10 and executes data reading from the disc, and obtains recorded data of the disc 10 via the drive 20 to decrypt and reproduce the content. The host 30 which performs is shown. In the figure, the drive 20 and the host 30 are shown as separate configurations, but the drive and the host may be configured as a single device, for example, a playback device. The leftmost disc (information recording medium) 10 is a disc 10 that complies with the AACS standard, and content such as a movie is recorded as encrypted content 17 in advance.

  The disk 10 has a pre-recorded media serial number (PMSN) as a content ID 14 that is identification information of the encrypted content 17, a volume ID 15 that is an identifier for each manufacturing unit of the disk 10, and a media ID 16 that is identification information unique to the disk. It is recorded. The media ID (PMSN) is recorded in the BCA area as described above.

The disk 10 is further
A script 11 which is a simple program for executing reproduction and copy processing in accordance with the AACS rules;
For example, the URL 12 of the server to be connected in order to obtain permission for copy processing when copying content stored on the disc,
MKB (Media Key Block) 13, which is an encryption key block storing key information applied to the decryption process of the encrypted content 17,
These data are recorded.

  An MKB (Media Key Block) 13 is an encryption information (encryption key) block generated based on a tree-structured key distribution method known as one aspect of the broadcast encryption method. The MKB 13 is an encryption information block in which the media key [Km], which is a key necessary for decrypting the content, is encrypted and stored, and the device key [Kd] stored in the user device having a valid license is used. The media key [Km] can be acquired by processing (decryption).

  The drive 20 includes a public key of the AACS management center, key data 21 including a drive public key and a drive secret key, and a host revocation list 22. The host revocation list 22 is a list in which the identification information of the hosts determined by the AACS management center as an unauthorized host is recorded, that is, a black list. For example, the identification number of the host public key certificate corresponding to the host is recorded as the host identification information. The host revocation list 22 is signed with a secret key of the AACS management center so that the host revocation list 22 is not altered.

  The host 30 has a public key of the AACS management center, key data 31 including a host public key and a host secret key, and a drive revocation list 32. The drive revocation list 32 is a list in which identification information of a drive determined by the AACS management center as an unauthorized drive device is recorded, that is, a black list. For example, the identification number of the drive public key certificate corresponding to the drive is recorded as drive identification information. The drive revocation list 32 is also signed with a secret key of the AACS management center so as not to be tampered with. The host revocation list 22 and the drive revocation list 32 may be recorded on the disk 10, and the drive 20 and the host 30 may read and use data recorded on the disk 10.

  A sequence when the host 30 reproduces content will be described. First, the host 30 and the drive 20 execute an authentication process between the authentication processing unit 33 of the host 30 and the authentication processing unit 23 of the drive 20. This authentication processing is executed according to a processing sequence defined by AACS. The main processes executed by each device in this process are as follows.

  The drive 20 reads the host revocation list 22, applies the AACS management center public key, verifies the signature of the host revocation list 22, confirms that there is no tampering, and identifies the host 30 in the host revocation list 22. It is confirmed that no information is described, that is, the host 30 is not revoked.

  The host 30 also reads the drive revocation list 32, applies the AACS management center public key, verifies the signature of the drive revocation list 32, confirms that there is no tampering, and puts the drive revocation list 32 in the drive revocation list 32. It is confirmed that the identification information is not described, that is, the drive 20 is not revoked.

  When it is confirmed that neither the drive 20 nor the host 30 has been revoked, the drive 20 and the host 30 perform encryption data communication in accordance with the AACS regulations, generate a shared secret key, and drive 20 and the host 30.

  When the authentication between the host and the drive is completed, the drive 20 reads the media ID (PMSN) 16 from the disk 10 and executes a MAC generation process using the shared key generated during the authentication process in the MAC calculation unit 24, The generated MAC value and the media ID (PMSN) 16 are transmitted to the host 30.

  As described above, the media ID (PMSN) 16 is recorded in a BCA area different from the normal data recording area, and it is necessary to perform a special reading process different from the normal data reproduction process.

  The MAC calculator 34 of the host 30 executes a MAC verification process using the shared key generated during the authentication process. That is, a MAC generation process using a shared key is performed on the media ID received from the drive 20, and the generated MAC value and the MAC value received from the drive 20 are collated. If the two MAC values match, it is determined that the verification is successful, and the encryption processing module 36 executes content decryption and playback processing in accordance with the AACS rules.

  In content decryption in accordance with the AACS regulations executed in the cryptographic processing module 36, the media key [Km] is obtained from the MKB 13 by the processing of the MKB 13 to which the device key [Kd] 35 is applied, and the media key [Km] is applied. By the processing, a content decryption key is acquired and content decryption processing is executed.

  Next, with reference to FIG. 2, a description will be given of a copy processing sequence for recording content on a disc to another medium, for example, another medium such as a hard disk. When copying disc recorded content according to the AACS rules, it is necessary to obtain copy permission information from the management server according to the AACS rules. The copy process based on this permission is called managed copy.

  FIG. 2 shows a management server 50 that outputs copy permission information from the left, an information processing apparatus 40 that executes copy processing, and a disc 10 that stores content to be copied. The information processing apparatus 40 is an apparatus having both functions of the host and the drive described with reference to FIG. The disc 10 is a disc 10 that complies with the AACS standard in the same manner as the disc 10 described with reference to FIG. 1, and content such as a movie is recorded as the encrypted content 17 in advance. The other description information of the disk 10 is the same information as described with reference to FIG.

  When the information processing apparatus 40 copies the encrypted content 17 recorded on the disk 10 to the recording medium 44, for example, the recording medium 44 such as a hard disk held by the information processing apparatus 40, the information processing apparatus 40 receives the information from the management server 50. In order to obtain copy permission information, the script 11 (simple program) recorded on the disk 10 is executed in the script execution unit 41.

  The script 11 records a program for executing a series of procedures when executing the copy process. The copy permission request unit 42 of the information processing apparatus 40 reads the content ID 14 and the media ID (PMSN) 16 from the disk 10 and transmits the ID information to the management server 50 according to the URL 12 recorded on the disk 10. As described above, the media ID (PMSN) 16 is recorded in a BCA area different from the normal data recording area, and needs to be read by a special process different from the normal data reproduction process.

  The copy permission determination unit 51 of the management server 50 receives the content ID 14 and the media ID (PMSN) 16 from the information processing apparatus 50, confirms the content to be copied and its recording disc, and determines whether or not copying is permitted. judge. The management server 50 holds copy permission information in units of discs and contents. For example, the content A having a specific disc is information that permits one copy process.

  The copy permission determination unit 51 of the management server 50 determines whether or not to permit a copy request from the information processing apparatus 40 according to such copy permission information, and sends the copy permission determination information via the copy permission notification unit 52. To the information processing apparatus 40.

  When the information processing apparatus 40 receives the copy permission information from the management server 50, the copy execution unit 43 reads the encrypted content 17 recorded on the disk 10 and stores it in the recording medium 44 such as a hard disk held by the information processing apparatus 40. Execute the process to copy. In this copy process, the encrypted content 17 can be decrypted and recorded as decrypted content. In this case, the MKB 13 and the volume ID 15 are read from the disk 10 and the read data is applied. Then, the decrypted content obtained by executing the decryption sequence according to the AACS rule is recorded on the recording medium 44.

  As described above, the reproduction processing sequence of the disc recorded content and the copy processing sequence of the disc recorded content in accordance with the AACS regulations have been described with reference to FIGS.

  As apparent from the above description, in the conventional sequence, it is indispensable to play the disc and read the data in the BCA area, and the processing load required before starting the playback and copying of the content is large. There is a problem that the time required for processing increases.

  For example, Patent Document 1 discloses a conventional technique that discloses a configuration in which a part of data is recorded on an element capable of reading data at a high speed without being recorded on a disk, for example, an IC chip capable of high-frequency proximity communication. In Patent Document 1, an IC chip is embedded in an optical disc, software identification information and usage control information necessary for installing software recorded on the optical disc are recorded on the IC chip, and the recorded information on the IC chip is used. A configuration for executing pre-processing before software installation is described. Patent Document 2 discloses a configuration in which an RFID tag is embedded in an optical disc and key information is recorded on the RFID tag.

In the content copy processing described with reference to FIG. 2, it is necessary to connect to the management server and transmit the content ID and media ID (PMSN) recorded on the disc to the management server. The copy permission information determined by the management server based on the transmission ID must be acquired. In other words, the copy process cannot be performed unless the management server can be connected. Therefore, there is a problem that a copy processing or the like cannot be executed by a device that does not have a server connection function. Even if the conventional techniques described in Patent Documents 1 and 2 are applied, this problem cannot be solved.
JP 2007-133608 A JP 2005-316994 A

  The present invention relates to an information processing apparatus, a disc, and an information processing method capable of performing copy processing by quickly acquiring copy permission information by omitting connection with a management server in copying processing of disc recorded content, An object is to provide a computer program.

The first aspect of the present invention is:
Data reading means for reading usage control information corresponding to the disc recording content from an IC chip provided on the disc;
Copy permission requesting means for determining whether or not the disc recording content is copy-permitted content according to the recording information of the usage control information read by the data reading means;
A copy execution unit that reads content recorded on a disc and executes a copy recording process for a data recording unit other than the disc, on the condition that a determination result that copying is permitted is obtained from the usage control information;
There is an information processing apparatus characterized by having.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the usage control information recorded on the IC chip corresponds to a media ID that is a unique identifier of a disc and a content ID that is an identifier of disc recorded content. Content copy permission information is recorded, and the copy permission request means refers to the corresponding record data of the usage control information using the media ID and the content ID read from the disc, and the content corresponding to the content ID is The present invention is characterized in that a process for determining whether or not the content is copy-permitted content is performed.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the IC chip is further configured to record a content ID that is an identifier of a disc recording content, and the copy permission requesting unit is a content read from the IC chip. The configuration is characterized in that processing for determining whether or not the content corresponding to the content ID is a copy-permitted content is performed by referring to the corresponding record data of the usage control information using the ID.

  Furthermore, in an embodiment of the information processing apparatus according to the present invention, the IC chip is further configured to record a media ID that is a unique identifier of the disc, and the copy permission requesting unit includes the media ID read from the IC chip. Referring to the corresponding record data of the usage control information using the above, the processing for determining whether or not the content corresponding to the media ID is a copy-permitted content is performed.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the IC chip further includes a content ID that is an identifier of a disc recording content and a media ID that is a unique identifier of the disc, and the copy permission The requesting unit determines whether or not the content corresponding to the content ID and the media ID is a copy-permitted content by referring to the corresponding record data of the usage control information using the content ID and the media ID read from the IC chip. It is the structure which performs the process to perform.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the information processing apparatus further includes an update process execution unit that executes an update process of the record information of the IC chip, and the update process execution unit includes The present invention is characterized in that communication with a management server that provides IC chip update information is executed, and a data update process for writing information received from the management server to the IC chip is performed.

Furthermore, in one embodiment of the information processing apparatus of the present invention, the IC chip is
(A) a script that is a simple program;
(B) a URL indicating the address of the management server;
The information processing apparatus has script execution means for executing the script, and the update processing execution unit executes communication with the management server according to a program executed by the script execution means And it is the structure which performs the process which transmits the data read from the said IC chip to the management server which the said URL designates.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the information processing apparatus further includes an authentication processing unit that executes authentication processing, and the authentication processing unit is included in an IC chip provided on the disk. An authentication process is performed with the configured authentication processing unit, and the information processing apparatus is configured to execute a use process of recorded data on an IC chip or a disk on condition that the authentication process is established.

Furthermore, the second aspect of the present invention provides
A disc with recorded content,
A data recording unit for recording content;
It has an IC chip that records usage control information corresponding to the disc recording content,
The IC chip has a configuration in which data can be read by a non-contact data reading unit, and when using the disc recording content in the information processing apparatus, the usage control information is read from the IC chip. According to the present invention, there is provided a disc characterized in that the use control of the content recorded on the disc is performed.

  Furthermore, in one embodiment of the disc of the present invention, the usage control information recorded on the IC chip is a content copy corresponding to a media ID that is a disc unique identifier and a content ID that is an disc recording content identifier. The information processing apparatus is configured to record permission information, and the information processing apparatus is configured to determine whether copying is permitted or not by referring to the corresponding data of the usage control information using a medium ID readable from a disc and a content ID. Features.

  Furthermore, in one embodiment of the disc of the present invention, the IC chip is further configured to record a content ID that is an identifier of the disc recording content. When the disc recording content is used in the information processing apparatus, the IC chip is The content ID is read to determine whether or not the content using the content ID is allowed to be copied.

  Furthermore, in one embodiment of the disc of the present invention, the IC chip is further configured to record a media ID that is a unique identifier of the disc. When the disc recording content is used in the information processing apparatus, The present invention is characterized in that the media ID is read, and whether or not content copying using the media ID is permitted is determined.

  Furthermore, in an embodiment of the disc of the present invention, the IC chip further includes a content ID that is an identifier of disc recording content and a media ID that is a unique identifier of the disc. When the recorded content is used, the content ID and the media ID are read from the IC chip, and whether or not the content can be copied using the content ID and the media ID is determined.

  Furthermore, in an embodiment of the disc of the present invention, the IC chip further includes a script that is a simple program and a URL that indicates an address of the management server, and the content of the disc recorded content in the information processing apparatus. In use, data is read from the IC chip, and an access process to the server specified by the URL is performed by executing a script.

  Furthermore, in an embodiment of the disc of the present invention, the IC chip has an authentication processing unit that executes an authentication process, and the authentication processing unit is connected to an information processing apparatus or an external server that uses the disc recorded content. The configuration is characterized in that the authentication process is performed.

Furthermore, the third aspect of the present invention provides
In an information processing apparatus, an information processing method for performing processing of using a disc recording content,
A data reading step in which the data reading means reads usage control information corresponding to the disc recorded content from an IC chip provided on the disc;
A copy permission requesting step, wherein the copy permission requesting unit determines whether or not the disc recording content is copy-permitted content according to the recording information of the usage control information read in the data reading step;
The copy execution means for reading the content recorded on the disc and executing the copy recording process for the data recording means other than the disc on condition that the copy execution means obtains the determination result that the copy is permitted from the usage control information Steps,
There is an information processing method characterized by comprising:

Furthermore, the fourth aspect of the present invention provides
In the information processing apparatus, a computer program for performing a process of using a disc recording content,
A data reading step for causing the data reading means to read usage control information corresponding to the disc recorded content from an IC chip provided on the disc;
A copy permission requesting step for causing a copy permission requesting unit to determine whether or not the disc recording content is copy-permitted content according to the recording information of the usage control information read in the data reading step;
Copy execution that causes the copy execution means to read the content recorded on the disc and execute the copy recording processing for the data recording means other than the disc on the condition that the determination result that the copy is permitted is obtained from the usage control information Steps,
There is a computer program characterized by comprising:

  The computer program of the present invention is, for example, a computer program that can be provided by a storage medium or a communication medium provided in a computer-readable format to a general-purpose computer system that can execute various program codes. . By providing such a program in a computer-readable format, processing corresponding to the program is realized on the computer system.

  Other objects, features, and advantages of the present invention will become apparent from a more detailed description based on embodiments of the present invention described later and the accompanying drawings. In this specification, the system is a logical set configuration of a plurality of devices, and is not limited to one in which the devices of each configuration are in the same casing.

  According to the configuration of the embodiment of the present invention, the usage control information of the content stored on the disc on the disc on which the content is recorded, specifically, the usage control information indicating whether or not the copy processing of the disc recording content is allowed. Is configured to determine whether or not the content recorded on the disc can be copied with reference to usage control information read from the IC chip. According to this configuration, it is not necessary to receive the copy permission information performed in the conventional system from the external server, and the information processing apparatus can determine whether the copy is permitted based on the usage control information read from the IC chip. Thus, it is possible to perform copy processing based on confirmation of permission information.

Details of the information processing apparatus, disk, information processing method, and computer program of the present invention will be described below with reference to the drawings.
Hereinafter, a plurality of embodiments of the present invention will be sequentially described.

[Example 1]
First, the configuration and processing of the first embodiment of the present invention will be described with reference to FIG. 3, FIG. 4, and FIG. FIG. 3 is a diagram for explaining recording data of a disc (information recording medium) 100 on which content is recorded. The disc 100 is a disc such as a DVD (Digital Versatile Disc) or Blu-ray Disc (registered trademark), and content such as a movie is recorded in the data recording area.

  The disc 100 has a data recording area 110 for recording contents and the like, and a BCA area (burst cutting area) 120 for recording a media ID (for example, PMSN: Pre-recorded Media Serial Number) 121 that is identification information unique to the disc. Further, an IC chip 130 in which usage control information 131 is recorded is provided.

  The disc 100 is a disc manufactured in accordance with the AACS (Advanced Access Content System) standard, which is a standard related to content copyright protection, and the data recording area 110 and the BCA area 120 are used for content use according to the AACA standard. Data is recorded.

The following data is recorded in the data recording area 110 of the disc 100.
A script 111 which is a simple program for executing reproduction and copy processing in accordance with AACS regulations;
For example, the URL 112 of the server to be connected in order to obtain permission for copy processing when copying content stored on the disc,
An MKB (Media Key Block) 113, which is an encryption key block storing key information applied to the decryption process of the encrypted content 116,
Content ID 114, which is identification information of the encrypted content 116,
A volume ID 115 which is an identifier for each manufacturing unit of the disk 100;
For example, encrypted content 116, which is data obtained by encrypting content such as a movie,
The above data is recorded in the data recording area 110.

Further, in the BCA area 120 of the disc 100,
A media ID (PMSN) 121 that is disc-specific identification information is recorded.
As described above, the BCA area is an area different from the normal data recording area, and data is recorded by physical cutting different from the normal data recording method. Therefore, it is difficult to rewrite the recorded data in the BCA area, and a special reading process different from the normal data reproducing process is required also in the reproducing process.

Further, the IC chip 130 provided on the disk 100 includes
Usage control information 131,
Is recorded.
The usage control information 131 includes data that records usage conditions of the content recorded on the information recording medium 100. For example, the copy control information of the content recorded on the information recording medium 100, specifically, copying is permitted. Whether or not copying is permitted, the permitted number of copies when copying is permitted, and content output permission information such as whether or not digital output is possible are recorded.

  The IC chip 130 is an IC chip called, for example, an RFIC (Radio Frequency IC) having a communication function for performing communication with a reader / writer (or a reader) placed in contact with or non-contact with the IC chip 130. The usage control information 131 stored in the memory in the IC chip 130 can be read and written via a reader / writer. The IC chip receives a radio wave or magnetic field output from the reader / writer with an antenna, converts it into electric power, outputs the media ID (PMSN) 131 stored in the memory to the reader / writer, and also transmits data via the reader / writer. Can be input and written to the memory in the IC chip.

  The reproduction process of the content stored in the disk having the data storage configuration shown in FIG. 3 can be executed as the same process as the process according to the AACS rule described above with reference to FIG.

  Next, with reference to FIG. 4, a copy processing sequence of content stored in a disk having the data storage configuration shown in FIG. 3 will be described. That is, it is a copy processing sequence for recording content on a disc to another medium, for example, another medium such as a hard disk.

  As described above, when copying a conventional disc recorded content in accordance with the AACS rules, it is necessary to obtain copy permission information from the management server in accordance with the AACS rules. The copy process based on this permission is called managed copy. In the content copy processing of this embodiment, the usage control information 131 of the IC chip 130 is read, and copying is executed according to this usage control information, thereby omitting connection with the management server and acquisition of copy permission information from the management server. It is possible to do.

  FIG. 4 shows an information processing apparatus 170 that executes copy processing and a disc 100 that stores content to be copied. The disk 100 is a disk having the data recording configuration described with reference to FIG. 3, and the disk 100 is provided with an IC chip 130 on which usage control information 131 is recorded.

  The information processing device 170 is a device having both functions as a host for executing content reproduction processing and copy processing, and a drive function for driving a disk and reading data.

  The information processing apparatus 170 includes a script execution unit 171 that executes a script 111 (simple program) recorded on the disk 100, a copy request unit 172 that acquires copy permission information during copy processing, and a copy execution unit 173 that performs copy processing. And a recording medium 177 such as an HDD serving as a copy destination.

  In this embodiment, when the information processing apparatus 170 copies the encrypted content 116 recorded on the disk 100 to the recording medium 177, the IC chip 130 provided on the disk 100 is obtained without obtaining copy permission information from the management server. Copying is performed when it is confirmed that copying is permitted by judging whether or not copying is possible according to the usage control information 131 recorded in FIG.

  In response to a content copy request from a user input unit (not shown), the copy permission request unit 172 of the information processing apparatus 170 first reads the usage control information 131 from the IC chip 130 via the reader / writer (R / W) 175, and further Then, the content ID 114 of the content corresponding to the content copy request is read from the data recording area of the disc, and further, the media ID (PMSN) 121 recorded in the BCA area 120 is read.

  The copy permission request unit 172 uses the media ID (PMSN) 121 and the content ID 114 to check whether the content specified by the content ID 114 is a content that is permitted to be copied in the usage control information 131. To do. In the usage control information 131, content copy permission information corresponding to the media ID (PMSN) and the content ID is recorded, and the copy permission request unit 172 determines whether copying is permitted based on the recorded information. Determine. That is, the copy permission request unit 172 uses the usage control information 131 recorded in the IC chip 130 in the same manner as the determination as to whether or not copying in the management server described above with reference to FIG. Will be done.

  When it is confirmed that the content specified by the content ID 114 is copy-permitted content based on the usage control information 131, the copy execution unit 173 encrypts the content recorded in the data recording area 110 of the disc 100. 116 is read and copied to a recording medium 177 such as a hard disk possessed by the information processing apparatus 170.

  If it is confirmed that the content specified by the content ID 114 is not a copy-permitted content based on the usage control information 131, the process is stopped without executing the copy process. In this case, for example, a message indicating that the content cannot be copied may be displayed on a display as a user interface.

If the content specified by the content ID 114 is confirmed to be copy-permitted content based on the usage control information 131, the content is copied by the copy execution unit 173, and the content is copied to the recording medium 177. However, for example, when the usage control information recorded in the IC chip 130 is data in which the allowable number of copies is set, for example,
Allowable number of copies = 3
In the case of such data, it is necessary to update the setting information after executing the copy process. That is, if you make a single copy,
Allowable number of copies = 2
Processing to rewrite the above settings is required. This process is performed by the copy execution unit 173. That is, after executing the copy process, the copy execution unit 173 rewrites the data of the IC chip 130 via the reader / writer (R / W) 175.

  In the copy process, it is possible to execute the decryption process of the encrypted content 116 and record the decrypted content in the recording medium 177, and in this case, information necessary for the decryption process, for example, a data recording area The decrypted content obtained by reading the MKB 113, the volume ID 115 recorded in 110, the media ID (PMSN) 121 recorded in the BCA area 120, etc., and applying these read data to execute a decryption sequence according to the AACS rules Is recorded on the recording medium 177.

  As described above, in the content copy processing according to the present embodiment, the usage control information 131 recorded in the IC chip 130 provided on the disk 100 is acquired without obtaining permission information regarding the copy processing from the management server. Since it is configured to determine whether or not copying is possible based on information, server connection is omitted and rapid processing is possible. Even when the information processing apparatus does not have a server connection function, content management based on reliable use control is possible. Copy control is possible.

  FIG. 5 is a modification of the configuration described with reference to FIG. In the configuration shown in FIG. 5, when the copy process is executed, the copy permission request unit 172 performs all control, and based on the confirmation process of the usage control information in the IC chip 130, the copy execution unit 173 is permitted or not permitted information. And the copy permission request unit 172 rewrites the data of the IC chip 130 via the reader / writer (R / W) 175 as necessary after the copy is executed.

[Example 2]
Next, the configuration and processing of the second embodiment of the present invention will be described with reference to FIGS. FIG. 6 is a diagram for explaining recording data of a disc (information recording medium) 200 on which content is recorded. The disc 200 is, for example, a disc such as a DVD (Digital Versatile Disc) or Blu-ray Disc (registered trademark), and content such as a movie is recorded in the data recording area.

  As in the first embodiment described with reference to FIG. 3, the disc 200 has a data recording area 210 in which contents and the like are recorded, and a BCA area (burst area) in which a medium ID (for example, PMSN) 221 that is disc-specific identification information is recorded. It has a configuration in which an IC chip 230 having a cutting area) 220 and further storing usage control information 231 is provided.

In this embodiment, the IC chip 230 is further
A content ID 232 that is identification information of the encrypted content 215 is recorded.
In the first embodiment, the content ID is recorded in the data recording area, but in the second embodiment, this data is not recorded in the data recording area 210 but is recorded in the IC chip 230.

The following data is recorded in the data recording area 210 of the disc 200.
A script 211, which is a simple program for executing reproduction and copy processing in accordance with AACS regulations,
For example, the URL 212 of the server to be connected in order to obtain permission for copy processing when copying content stored on the disc,
MKB (Media Key Block) 213 which is an encryption key block storing key information applied to the decryption process of the encrypted content 215,
A volume ID 214 which is an identifier for each manufacturing unit of the disk 300;
For example, encrypted content 215 that is data obtained by encrypting content such as a movie,
The above data is recorded in the data recording area 210.

Further, in the BCA area 220 of the disc 200,
A media ID (PMSN) 221 which is disc-specific identification information is recorded.
As described above, the BCA area is an area different from the normal data recording area, and data is recorded by physical cutting different from the normal data recording method. Therefore, it is difficult to rewrite the recorded data in the BCA area, and a special reading process different from the normal data reproducing process is required also in the reproducing process.

Furthermore, as described above, the IC chip 230 provided on the disk 200 has
For example, the copy permission information of the encrypted content 215 recorded on the information recording medium 200, specifically, whether copying is permitted, the number of permitted copying when copying is permitted, and the content output permission information For example, usage control information 231 that records whether or not digital output is possible,
Content ID 232 which is identification information of the encrypted content 215,
This information is recorded.

  The reproduction process of the content stored in the disc having the data storage configuration shown in FIG. 6 can be executed as the same process as the process according to the AACS rule described above with reference to FIG.

  Next, with reference to FIG. 7, a copy processing sequence of content stored in a disk having the data storage configuration shown in FIG. 6 will be described. That is, it is a copy processing sequence for recording content on a disc to another medium, for example, another medium such as a hard disk.

  FIG. 7 shows an information processing device 270 that executes copy processing and a disc 200 that stores content to be copied. The disc 200 is a disc having the data recording configuration described with reference to FIG. 6, and the disc 200 is provided with an IC chip 230 in which usage control information 231 and a content ID 232 are recorded.

  The information processing device 270 is a device having both functions as a host for executing content reproduction processing and copy processing, and a drive function for driving a disk and reading data.

  The information processing device 270 includes a script execution unit 271 that executes a script 211 (simple program) recorded on the disk 200, a copy request unit 272 that acquires copy permission information during copy processing, and a copy execution unit 273 that performs copy processing. And a recording medium 277 such as an HDD serving as a copy destination.

  In this embodiment, the information processing apparatus 270 permits the copy from the management server when copying the encrypted content 215 recorded on the disk 200 to the recording medium 277, for example, a recording medium 277 such as a hard disk held by the information processing apparatus 270. Copying is performed when it is confirmed that copying is permitted by determining whether copying is possible according to the usage control information 231 recorded on the IC chip 230 provided on the disk 200 without obtaining information.

  In response to a content copy request from a user input unit (not shown), the copy permission request unit 272 of the information processing device 270 first reads the usage control information 131 from the IC chip 230 via the reader / writer (R / W) 275, and further The content ID 232 of the content corresponding to the content copy request is also read from the IC chip 230, and the media ID (PMSN) 221 recorded in the BCA area 220 is further read.

  Using the media ID (PMSN) 221 and the content ID 232, the copy permission request unit 272 confirms whether the content specified by the content ID 232 is a content that is permitted to be copied in the usage control information 231. To do. In the usage control information 231, content copy permission information corresponding to the media ID (PMSN) and the content ID is recorded, and the copy permission requesting unit 272 determines whether copying is permitted based on the recorded information. Determine. That is, the copy permission request unit 272 uses the usage control information 231 recorded in the IC chip 230 in the same process as the determination as to whether or not copying is allowed in the management server described above with reference to FIG. Will be done.

  When it is confirmed that the content specified by the content ID 232 is copy-permitted content based on the usage control information 231, the encrypted content recorded in the data recording area 210 of the disc 200 by the copy execution unit 273. 215 is read and copied to a recording medium 277 such as a hard disk held by the information processing device 270.

  If it is confirmed that the content specified by the content ID 232 is not a copy-permitted content based on the usage control information 231, the process is stopped without executing the copy process. In this case, for example, a message indicating that the content cannot be copied may be displayed on a display as a user interface.

If it is confirmed that the content specified by the content ID 232 is copy-permitted content based on the usage control information 231, the content is copied by the copy execution unit 273, and the content is copied to the recording medium 277. However, for example, when the usage control information recorded in the IC chip 230 is data in which the allowable number of copies is set, for example,
Allowable number of copies = 3
In the case of such data, it is necessary to update the setting information after executing the copy process. That is, if you make a single copy,
Allowable number of copies = 2
Processing to rewrite the above settings is required. This process is performed by the copy permission request unit 272 or the copy execution unit 273. That is, after executing the copy process, the copy permission request unit 272 or the copy execution unit 273 rewrites the data of the IC chip 230 via the reader / writer (R / W) 275.

  In the copy process, it is possible to execute the decryption process of the encrypted content 215 and record the decrypted content in the recording medium 277. In this case, information necessary for the decryption process, for example, a data recording area The decrypted content obtained by reading the MKB 213, the volume ID 215 recorded in the 210, the media ID (PMSN) 221 recorded in the BCA area 220, etc., and applying the read data to execute a decryption sequence according to the AACS standard Is recorded on the recording medium 277.

  As described above, also in the content copy process according to the present embodiment, the permission information regarding the copy process is recorded on the IC chip 230 provided on the disk 200 without obtaining the permission information regarding the copy process, as in the first embodiment. Since it is configured to determine whether or not copying is possible based on the recording information of the usage control information 231, the server connection is omitted, and quick processing is possible. Even when the information processing apparatus does not have a server connection function, reliable Content copy control based on usage control is possible.

  Further, in the present embodiment, the content ID used for determining whether copying is possible is also recorded on the IC chip 230, so that it is possible to omit reading data from the data recording area 210 when determining whether copying is possible. Thus, a quick copy permission / inhibition determination process can be performed.

[Example 3]
Next, the configuration and processing of the third embodiment of the present invention will be described with reference to FIGS. FIG. 8 is a diagram for explaining recording data of a disc (information recording medium) 300 on which content is recorded. The disc 300 is a disc such as a DVD (Digital Versatile Disc) or Blu-ray Disc (registered trademark), and content such as a movie is recorded in the data recording area.

  As in the first embodiment, the disc 300 has a data recording area 310 in which contents are recorded and a BCA area in which a medium ID (for example, PMSN) 321 that is disc-specific identification information is recorded (as in the first embodiment). And an IC chip 330 having usage control information 331 recorded thereon.

In the present embodiment, the IC chip 330 further includes
A content ID 332 that is identification information of the encrypted content 315;
Media ID (for example, PMSN) 333, which is disc-specific identification information
These data are recorded. The media ID (PMSN) 333 recorded in the IC chip 330 and the media ID (PMSN) 321 recorded in the BCA area 320 are the same data.

The following data is recorded in the data recording area 310 of the disc 300.
A script 311 which is a simple program for executing reproduction and copy processing in accordance with AACS regulations;
For example, the URL 312 of the server to be connected in order to obtain permission for copy processing when copying content stored on the disc,
MKB (Media Key Block) 313 which is an encryption key block storing key information applied to the decryption process of the encrypted content 315,
A volume ID 314 that is an identifier for each manufacturing unit of the disk 300;
For example, encrypted content 315 that is data obtained by encrypting content such as a movie,
The above data is recorded in the data recording area 310.

Further, in the BCA area 320 of the disc 300,
A media ID (PMSN) 321 that is disc-specific identification information is recorded.
As described above, the BCA area is an area different from the normal data recording area, and data is recorded by physical cutting different from the normal data recording method. Therefore, it is difficult to rewrite the recorded data in the BCA area, and a special reading process different from the normal data reproducing process is required also in the reproducing process.

Further, as described above, the IC chip 330 provided on the disk 300 has
For example, the copy permission information of the encrypted content 315 recorded in the information recording medium 300, specifically, whether copying is permitted, the number of permitted copying when copying is permitted, and the content output permission information For example, usage control information 331 that records whether digital output is possible,
Content ID 332 which is identification information of the encrypted content 315,
Media ID (PMSN) 333, which is disc identification information
These data are recorded.
As described above, the media ID (PMSN) 333 recorded in the IC chip 330 and the media ID (PMSN) 321 recorded in the BCA area 320 are the same data.

  The reproduction process of the content stored in the disc having the data storage configuration shown in FIG. 8 can be executed as the same process as the process according to the AACS rule described above with reference to FIG.

  Next, with reference to FIG. 9, a copy processing sequence of content stored in a disk having the data storage configuration shown in FIG. 8 will be described. That is, it is a copy processing sequence for recording content on a disc to another medium, for example, another medium such as a hard disk.

  FIG. 9 shows an information processing apparatus 370 that executes copy processing and a disc 300 that stores content to be copied. The disc 300 is a disc having the data recording configuration described with reference to FIG. 8, and the disc 300 is provided with an IC chip 330 in which usage control information 331, a content ID 332, and a media ID (PMSN) 333 are recorded. ing.

  The information processing device 370 is a device having both functions as a host for executing content reproduction processing and copy processing, and a drive function for driving a disk and reading data.

  The information processing apparatus 370 includes a script execution unit 371 that executes a script 311 (simple program) recorded on the disk 300, a copy request unit 372 that acquires copy permission information during a copy process, and a copy execution unit 373 that performs a copy process. And a recording medium 377 such as an HDD serving as a copy destination.

  In this embodiment, the information processing apparatus 370 allows the copy permission from the management server when copying the encrypted content 315 recorded on the disk 300 to the recording medium 377, for example, the recording medium 377 such as a hard disk held by the information processing apparatus 370. Copying is performed when it is confirmed that copying is permitted by determining whether or not copying is possible according to the usage control information 331 recorded on the IC chip 330 provided on the disk 300 without obtaining information.

  The copy permission request unit 372 of the information processing device 370 first reads the usage control information 331 from the IC chip 330 via the reader / writer (R / W) 375 in response to a content copy request from a user input unit (not shown), and The content ID 332 of the content corresponding to the content copy request is also read from the IC chip 330, and the media ID (PMSN) 333 is also read from the IC chip 330.

  The copy permission request unit 372 uses the media ID (PMSN) 333 and the content ID 332 to check whether the content specified by the content ID 332 is a content that is permitted to be copied in the usage control information 331. To do. The usage control information 331 records content copy permission information corresponding to the media ID (PMSN) and content ID, and the copy permission request unit 372 determines whether copying is permitted based on the recorded information. Determine. That is, the copy permission request unit 372 uses the usage control information 331 recorded in the IC chip 330 in the same process as the determination as to whether or not copying is allowed in the management server described above with reference to FIG. Will be done.

  When it is confirmed that the content specified by the content ID 332 is copy-permitted content based on the usage control information 331, the copy execution unit 373 stores the encrypted content recorded in the data recording area 310 of the disc 300. 315 is read and the process which copies to recording media 377, such as a hard disk which the information processing apparatus 370 has, is performed.

  If it is confirmed that the content specified by the content ID 332 is not a copy-permitted content based on the usage control information 331, the process is stopped without executing the copy process. In this case, for example, a message indicating that the content cannot be copied may be displayed on a display as a user interface.

When the content specified by the content ID 332 is confirmed to be copy-permitted content based on the usage control information 331, the content is copied by the copy execution unit 373, and the content is copied to the recording medium 377. However, for example, when the usage control information recorded on the IC chip 330 is data in which the allowable number of copies is set, for example,
Allowable number of copies = 3
In the case of such data, it is necessary to update the setting information after executing the copy process. That is, if you make a single copy,
Allowable number of copies = 2
Processing to rewrite the above settings is required. This process is performed by the copy permission request unit 372 or the copy execution unit 373. That is, after executing the copy process, the copy permission request unit 372 or the copy execution unit 373 rewrites the data of the IC chip 330 via the reader / writer (R / W) 375.

  In the copy process, it is possible to execute the decryption process of the encrypted content 315 and record it as the decrypted content on the recording medium 377. In this case, information necessary for the decryption process, for example, a data recording area The decrypted content obtained by reading the MKB 313, the volume ID 315, the media ID (PMSN) 333, etc. recorded on the IC chip 330 and applying the read data to execute a decryption sequence according to the AACS regulations. Is recorded on the recording medium 377. As for the media ID (PMSN) 333, it is possible to record the information read in the copy permission determination process in a memory in the information processing apparatus 370 and use the read information.

  As described above, also in the content copy processing according to the present embodiment, the permission information regarding the copy processing is recorded on the IC chip 330 provided on the disk 300 without acquiring permission information regarding the copy processing from the management server. Since the server connection is omitted and quick processing is possible, and even when the information processing apparatus does not have a server connection function, the copy determination is made based on the recording information of the usage control information 331. Content copy control based on reliable use control is possible.

  Furthermore, in the present embodiment, the content ID and media ID (PMSN) used for determining whether copying is possible are also recorded on the IC chip 330, so that data can be read from the data recording area 310 when determining whether copying is possible. In addition, the data reading process from the BCA area 320 can be omitted, and a quick copy permission / inhibition determination process can be performed.

  In the above processing example, the copy permission request unit 372 has been described as a configuration for confirming whether the content specified by the content ID 332 is content that is permitted to be copied in the usage control information 331. The copy permission request unit 372 may be configured to confirm whether the content corresponding to the media specified by the media ID 333 is content that is permitted to be copied in the usage control information 331. Or it is good also as a structure which confirms whether the content specified by both ID of content ID332 and media ID333 is a content in which the use control information 331 is permitted to copy.

  In the usage control information 331, content copy permission information specified in accordance with each or both of the media ID (PMSN) and the content ID is recorded, and the copy permission request unit 372 is based on the recorded information. It is determined whether copying is permitted.

[Example 4]
Next, the configuration and processing of the fourth embodiment of the present invention will be described with reference to FIGS. FIG. 10 is a diagram for explaining recording data of a disc (information recording medium) 400 on which content is recorded. The disc 400 is, for example, a disc such as a DVD (Digital Versatile Disc), Blu-ray Disc (registered trademark), and content such as a movie is recorded in the data recording area.

  As in the first embodiment, the disc 400 has a data recording area 410 in which contents are recorded and a BCA area in which a media ID (for example, PMSN) 421 that is identification information unique to the disc is recorded (as in the first embodiment). And an IC chip 430 on which usage control information 433 is recorded.

In this embodiment, the IC chip 430 further includes
(A) a script 431 that is a simple program for executing reproduction and copy processing in accordance with the AACS rules;
(B) For example, URL 432 of a server to be connected in order to obtain permission for copy processing when copying content stored on a disc;
(C) a content ID 434 that is identification information of the encrypted content 413;
(D) Media ID (for example, PMSN) 435 which is disc-specific identification information
These data are recorded. The media ID (PMSN) 435 recorded in the IC chip 430 and the media ID (PMSN) 421 recorded in the BCA area 420 are the same data.

The following data is recorded in the data recording area 410 of the disc 400.
An MKB (Media Key Block) 411 which is an encryption key block storing key information applied to the decryption process of the encrypted content 413;
Volume ID 412 which is an identifier for each manufacturing unit of the disk 400,
For example, encrypted content 413 which is data obtained by encrypting content such as a movie,
The above data is recorded in the data recording area 410.

Further, in the BCA area 420 of the disc 400,
A media ID (PMSN) 421 that is disc-specific identification information is recorded.
As described above, the BCA area is an area different from the normal data recording area, and data is recorded by physical cutting different from the normal data recording method. Therefore, it is difficult to rewrite the recorded data in the BCA area, and a special reading process different from the normal data reproducing process is required also in the reproducing process.

  The reproduction process of the content stored in the disc having the data storage configuration shown in FIG. 10 can be executed as the same process as the process according to the AACS rule described above with reference to FIG.

  The content copy processing sequence stored on the disc is executed by reading the usage control information 433, the content ID 434, and the media ID (PMSN) 435 from the IC chip 430, as in the third embodiment.

In the fourth embodiment, the following data stored in the IC chip 430, that is,
(A) a script 431 that is a simple program for executing reproduction and copy processing in accordance with the AACS rules;
(B) For example, URL 432 of a server to be connected in order to obtain permission for copy processing when copying content stored on a disc;
By using these data, it becomes possible to update the usage control information 433 that is stored data of the IC chip 430 and the program.

  With reference to FIG. 11, a stored data update processing sequence of the IC chip 430 using a disk having the data storage configuration shown in FIG. 10 will be described.

FIG. 11 shows, from the left, the management server 480, the information processing apparatus 470 mounted with the disk 400, and the disk 400. The disc 400 is a disc having the data recording configuration described with reference to FIG.
In addition to usage control information 433,
(A) a script 431 that is a simple program for executing reproduction and copy processing in accordance with the AACS rules;
(B) For example, URL 432 of a server to be connected in order to obtain permission for copy processing when copying content stored on a disc;
(C) a content ID 434 that is identification information of the encrypted content 413;
(D) Media ID (for example, PMSN) 435 which is disc-specific identification information
An IC chip 430 that records these data is provided.

  The information processing device 470 is a device having both functions as a host for executing content reproduction processing and copy processing, and a drive function for driving a disk and reading data.

  The information processing apparatus 470 includes a script execution unit 471 that executes a script 431 (simple program) recorded in the IC chip 430 and an update processing execution unit 472 that executes data update of the IC chip 430.

  In this embodiment, when the information processing device 470 updates the data of the IC chip 430, for example, updates the usage control information 433, first, the script 431 recorded in the IC chip 430 is read by the reader / writer (R / W) 475. And executed by the script execution unit 471.

  In this embodiment, the script 431 is recorded in the IC chip 430, and the information processing apparatus 470 acquires the script 431 from the IC chip 430 via the reader / writer (R / W) 475 and executes it in the script execution unit 471. To do. Step S401 shown in the figure shows the reading process of the script 431.

  The script 431 records a program for executing a series of procedures when executing the update process of the IC chip 430. The update processing execution unit 472 of the information processing device 470 acquires data to be transmitted to the management server 480 from the IC chip 430 via the reader / writer (R / W) 475 according to this program.

  Specifically, the content ID 434 and the media ID (PMSN) 435 are read from the IC chip, the URL of the management server 480 is acquired from the IC chip, and the data, that is, the content ID 434 is transferred to the management server 480 according to the URL. , Media ID (PMSN) 435 is transmitted. Step S402 shown in the figure shows this processing.

  When the update information providing unit 481 of the management server 480 receives data from the information processing device 470, the update information providing unit 481 acquires necessary update information from the database and provides it to the information processing device 470. Step S403 shown in the figure shows this processing.

  The update processing execution unit 471 of the information processing device 470 executes data writing to the IC chip 430 via the reader / writer (R / W) 475 based on the received information from the management server 480 to record in the IC chip 430. Information, for example, usage control information 433 is updated.

  As an example of the usage control information update process, for example, when the usage control information initially recorded on the IC chip of the disc prohibits copying certain content, but wants to change it to copy-permitted content after a certain period of time has elapsed. The management server provides the usage control information reflecting the change information to the information processing apparatus as the update usage control information and records it on the IC chip. Is applicable.

  In this embodiment, as shown in FIG. 11, all the information necessary for the update process of the IC chip can be acquired from the IC chip, and the data update is performed without reading the data in the data recording area or the BCA area. Processing can be performed.

[Example 5]
Next, the configuration and processing of the fifth embodiment of the present invention will be described with reference to FIGS. FIG. 12 is a diagram for explaining recording data of a disc (information recording medium) 500 on which content is recorded. The disc 500 is, for example, a disc such as a DVD (Digital Versatile Disc), Blu-ray Disc (registered trademark), and content such as a movie is recorded in the data recording area.

  As described with reference to FIG. 3, the disc 500 has a data recording area 510 in which contents and the like are recorded and a BCA area in which a medium ID (for example, PMSN) 521 that is disc-specific identification information is recorded, as in the first embodiment. And an IC chip 530 in which usage control information 533 is recorded.

In this embodiment, the IC chip 530 further includes
(A) a script 531 which is a simple program for executing reproduction and copy processing in accordance with AACS regulations;
(B) For example, the URL 532 of the server to be connected in order to obtain permission for copy processing when copying content stored on the disc;
(C) a content ID 534 which is identification information of the encrypted content 513,
(D) Media ID (for example, PMSN) 535 which is disc-specific identification information;
(E) Authentication data 536,
(F) Authentication processing unit 537,
It has these data and functions.
The media ID (PMSN) 535 recorded in the IC chip 530 and the media ID (PMSN) 521 recorded in the BCA area 520 are the same data.

The following data is recorded in the data recording area 510 of the disc 500.
An MKB (Media Key Block) 511, which is an encryption key block storing key information applied to the decryption process of the encrypted content 513;
Volume ID 512, which is an identifier for each manufacturing unit of the disk 500,
For example, encrypted content 513, which is data obtained by encrypting content such as a movie,
The above data is recorded in the data recording area 510.

Further, in the BCA area 520 of the disc 500,
A media ID (PMSN) 521 which is disc-specific identification information is recorded.
As described above, the BCA area is an area different from the normal data recording area, and data is recorded by physical cutting different from the normal data recording method. Therefore, it is difficult to rewrite the recorded data in the BCA area, and a special reading process different from the normal data reproducing process is required also in the reproducing process.

An authentication processing sequence using a disk having the data storage configuration shown in FIG. 12 will be described with reference to FIGS. 13 to 15 are diagrams for explaining the following authentication processing.
(1) FIG. 13 shows authentication between the information processing device 570 and the IC chip 530 (disk 500).
(2) FIG. 14 shows authentication between the information processing device 570 and the IC chip 530 (disk 500) and authentication between the information processing device 570 and the management server. (3) FIG. 15 shows an IC chip via the information processing device 570. Authentication between 530 (disk 500) and management server These authentication sequences are shown.

  First, an authentication process between the information processing device 570 and the IC chip 530 (disk 500) will be described with reference to FIG. The information processing apparatus 570 can perform content reproduction and content copy processing by mounting various discs, but uses the content after confirming that the disc is a legitimate disc storing legitimate content. It is preferable. Further, when viewed from the disc side, it is preferable that the content is allowed to be used only in a legitimate information processing apparatus. Note that a legitimate device or a legitimate disc is, for example, a device or disc that conforms to the AACS standard, and is a device or disc that can be used for content under predetermined content usage control such as AACS regulations. means.

  The information processing apparatus and the disk perform authentication processing as processing for confirming validity. In this embodiment, the IC chip 530 mounted on the disk is provided with an authentication processing unit 536 that executes authentication processing, and performs authentication processing with the authentication processing unit 579 of the information processing device 570.

  The information processing apparatus 570 includes an authentication processing unit 579 and authentication data 578, and is configured to be able to perform authentication using these data. The IC chip 530 also includes an authentication processing unit 537 and authentication data 536. In addition, authentication is possible by applying these data.

  The IC chip 530 stores data necessary for authentication processing, for example, authentication data 536 including a public key of the AACS management center, a public key set corresponding to the IC chip 530, a secret key, and the like. Similarly, the information processing device 570 also records authentication data 578 including a public key of the AACS management center, a public key set corresponding to the information processing device 570, a secret key, and the like. The authentication processing unit 537 in the IC chip 530 and the authentication processing unit 579 of the information processing device 570 perform authentication processing using these authentication data. In this case, the authentication processing unit 579 of the information processing device 570 performs data communication with the authentication processing unit 537 in the IC chip 530 via the reader / writer (R / W) 575.

  After the authentication process is completed and the validity of both the information processing device 570 and the IC chip 530 (disk 500) is confirmed, the data recorded on the IC chip 530 and the disk 500 is used. As described above, by using the disc content and the data in the IC chip on condition that the authentication process is established, it is possible to prevent the use of an unauthorized disc.

  In this embodiment, since all the data required for the authentication processing function and authentication processing are stored in the IC chip, the authentication processing is performed without driving the disk, that is, without reading the data in the data recording area or the BCA area. It is possible and efficient authentication is performed.

  Next, an authentication sequence between the information processing device 570 and the IC chip 530 (disk 500) and an authentication sequence between the information processing device 570 and the management server will be described with reference to FIG.

  The information processing apparatus 570 needs to connect to the management server and communicate with the management server when using the content stored on the disk or when updating the IC chip described in the fourth embodiment. When communication is performed by connecting to the management server in this way, the management server 580, the information processing device 570, the disk 500, and the process of confirming the validity of each of these, that is, the authentication process is performed, and the validity is confirmed. In some cases, it is preferable to perform the treatment. FIG. 14 is a diagram illustrating an authentication process for confirming the validity of these three parties.

  The information processing apparatus 570 includes an authentication processing unit 579 and authentication data 578, and is configured to be able to perform authentication using these data. The IC chip 530 also includes an authentication processing unit 537 and authentication data 536. In addition, authentication is possible by applying these data.

  Authentication processing between the authentication processing unit 579 of the information processing device 570 and the authentication processing unit 537 of the IC chip 530 is performed by the same processing as described with reference to FIG. Further, authentication is performed between the authentication processing unit 579 of the information processing device 570 and the authentication processing unit 586 of the management server 580. The management server 586 also holds data necessary for authentication as authentication data 585.

in this way,
(A) Authentication processing between authentication processing unit 579 of information processing device 570 and authentication processing unit 537 of IC chip 530 (b) Authentication processing between authentication processing unit 579 of information processing device 570 and authentication processing unit 586 of management server 580 ,
By performing these two authentication processes, it is possible to mutually confirm the legitimacy of the information processing apparatus, IC chip, management server, and these three parties.

  On the condition that the authentication process is established, for example, the data update of the IC chip described in the fourth embodiment is performed, thereby preventing the data update for an unauthorized IC chip, the data update by an unauthorized server, and the like. It becomes possible. Also, by performing authentication processing to confirm the validity and performing encryption key sharing processing, communication data can be encrypted using the shared encryption key and sent and received, realizing high security level communication. Thus, it is possible to perform secure data communication with reduced possibility of data leakage.

  FIG. 15 is a diagram illustrating an authentication process between the IC chip 530 (disk 500) and the management server 580 via the information processing apparatus 570. In this processing example, the authentication processing unit 579 of the information processing device 570 is configured to only mediate communication between the IC chip 530 and the management server 580. Even with this configuration, the management server 580 and the IC chip 530 can confirm the validity of both, and by sharing the encryption key during the authentication process, the communication data can be encrypted and transmitted / received using the shared encryption key. Thus, communication with a high security level is realized, and safe data communication with reduced possibility of data leakage can be performed.

  After the authentication process is completed and the validity of both the management server 580 and the IC chip 530 is confirmed, the IC chip update process described in the previous embodiment and the information acquisition process from other management servers are performed. It will be. By encrypting communication data using an encryption key shared in the authentication process, communication with a high security level is possible, and safe data communication with reduced possibility of data leakage is possible.

[Example 6]
Next, the configuration and processing of the sixth embodiment of the present invention will be described with reference to FIGS. FIG. 16 is a diagram for explaining recording data of a disc (information recording medium) 600 on which content is recorded. The disc 600 is, for example, a disc such as a DVD (Digital Versatile Disc) or Blu-ray Disc (registered trademark), and content such as a movie is recorded in the data recording area.

  Unlike the configurations described in the first to fifth embodiments, the disc 600 has a configuration in which a media ID (for example, PMSN), which is disc-specific identification information, is not recorded in the BCA area (burst cutting area) 620. Although the BCA region 620 is shown in the figure, in this embodiment, the BCA region itself may be omitted.

  The disc 600 has a configuration in which a data recording area 610 that records content and the like, and an IC chip 630 that records usage control information 633 and the like are provided.

The IC chip 630 further includes
A content ID 632 which is identification information of the encrypted content 615;
Media ID (for example, PMSN) 633, which is disc-specific identification information
These data are recorded.

The following data is recorded in the data recording area 610 of the disc 600.
A script 611 which is a simple program for executing reproduction and copy processing in accordance with AACS regulations;
For example, the URL 612 of the server to be connected in order to obtain permission for copy processing when copying content stored on the disc,
MKB (Media Key Block) 613, which is an encryption key block storing key information applied to the decryption process of the encrypted content 615,
A volume ID 614 that is an identifier for each manufacturing unit of the disk 300;
For example, encrypted content 615 that is data obtained by encrypting content such as a movie,
The above data is recorded in the data recording area 610.

  A reproduction processing sequence of content stored in a disk having the data storage configuration shown in FIG. 16 will be described with reference to FIG. FIG. 17 shows a disc 600 storing content from the left, a drive 650 that loads the disc 600 and executes data reading from the disc, and obtains recorded data of the disc 600 via the drive 650 and decrypts and reproduces the content. The host 660 that performs is shown. In the figure, the drive 650 and the host 660 are shown as separate configurations, but the drive and the host may be configured as a single device, for example, a playback device. The leftmost disc (information recording medium) 600 is a disc having the data recording configuration described with reference to FIG.

  The drive 650 includes a public key of the AACS management center, key data 651 including a drive public key and a drive secret key, and a host revocation list 652. The host revocation list 652 is a list in which identification information of the hosts determined by the AACS management center as an unauthorized host is recorded, that is, a black list. For example, the identification number of the host public key certificate corresponding to the host is recorded as the host identification information. The host revocation list 652 is given a signature by the secret key of the AACS management center so as not to be tampered with.

  The host 660 has a public key of the AACS management center, key data 661 including a host public key and a host secret key, and a drive revocation list 662. The drive revocation list 662 is a list in which identification information of a drive determined by the AACS management center as an unauthorized drive device is recorded, that is, a black list. For example, the identification number of the drive public key certificate corresponding to the drive is recorded as drive identification information. The drive revocation list 662 is also signed with a secret key of the AACS management center so as not to be tampered with. The host revocation list 652 and the drive revocation list 662 may be recorded on the disk 600, and the drive 650 and the host 660 may read and use the data recorded on the disk 600.

  A sequence when the host 660 reproduces content will be described. First, the host 660 and the drive 650 execute an authentication process between the authentication processing unit 663 of the host 660 and the authentication processing unit 653 of the drive 650. This authentication processing is executed according to a processing sequence defined by AACS. The main processes executed by each device in this process are as follows.

  The drive 650 reads the host revocation list 652, applies the AACS management center public key, verifies the signature of the host revocation list 652, confirms that there is no tampering, and identifies the host 660 in the host revocation list 652. It is confirmed that no information is described, that is, the host 660 is not revoked.

  The host 660 also reads the drive revocation list 662, applies the AACS management center public key, verifies the signature of the drive revocation list 662, and confirms that there is no falsification. It is confirmed that the identification information is not described, that is, the drive 650 is not revoked.

  If it is confirmed that neither the drive 650 nor the host 660 has been revoked, the drive 650 and the host 660 communicate encrypted data in accordance with the AACS rules, generate a shared secret key, and drive 650 and host 660 share it.

  When the authentication between the host and the drive is completed, the drive 650 reads the volume ID 612 and the media ID (PMSN) 633 from the disk 600. In this embodiment, the media ID (PMSN) 633 is recorded on the IC chip 630 embedded in the disk 600, and the drive 650 is read from the IC chip 630 of the disk 600 by the reader / writer 655. Read.

  The drive 650 uses the read data from the disk to execute a MAC generation process to which the MAC calculation unit 654 applies a shared key generated during the authentication process, and generates the generated MAC value and the media ID (PMSN) 631 as the host 660. Send to.

  The MAC calculation unit 654 of the host 660 executes a MAC verification process using the shared key. That is, a MAC generation process using the shared key generated during the authentication process is performed on the media ID received from the drive 650, and the generated MAC value and the MAC value received from the drive 650 are collated. If the two MAC values match, it is determined that the verification is successful, and the content processing / reproduction processing is executed in the cryptographic processing module 666.

  In the content decryption executed in the cryptographic processing module 666, the media key [Km] is obtained from the MKB 611 by the processing of the MKB 611 to which the device key [Kd] 665 is applied, and the content of the content is obtained by the processing to which the media key [Km] is applied. The decryption key is acquired and the content decryption process is executed.

  Next, with reference to FIG. 18, a copy processing sequence of content stored in a disk having the data storage configuration shown in FIG. 16 will be described. That is, it is a copy processing sequence for recording content on a disc to another medium, for example, another medium such as a hard disk.

  FIG. 18 shows an information processing device 670 that executes copy processing and a disc 600 that stores content to be copied. The disk 600 is a disk having the data recording configuration described with reference to FIG. 16, and has a configuration in which the media ID (PMSN) is not recorded in the BCA area but is recorded only in the IC chip 630.

  The information processing device 670 is a device having both functions as a host for executing content reproduction processing and copy processing, and a drive function for driving a disk and reading data.

  When the information processing device 670 copies the encrypted content 613 recorded on the disc 600 to a recording medium 677, for example, a recording medium 677 such as a hard disk held by the information processing device 670, the information processing device 670 does not obtain copy permission information from the management server. Then, copying is performed when it is confirmed that copying is permitted by judging whether copying is possible according to the usage control information 631 recorded on the IC chip 630 provided on the disk 600.

  In response to a content copy request from a user input unit (not shown), the copy permission request unit 672 of the information processing device 670 first reads the usage control information 631 from the IC chip 630 via the reader / writer (R / W) 675. The content ID 632 and media ID (PMSN) 633 of the content corresponding to the content copy request are also read from the IC chip 630.

  The copy permission request unit 672 uses the media ID (PMSN) 633 and the content ID 632 to check whether the content specified by the content ID 632 is content that is permitted to be copied in the usage control information 631. To do. The usage control information 631 records content copy permission information corresponding to the media ID (PMSN) and the content ID, and the copy permission request unit 672 determines whether copying is permitted based on the recorded information. Determine. That is, the copy permission request unit 672 uses the usage control information 631 recorded in the IC chip 630 in the same manner as the determination as to whether or not copying in the management server described above with reference to FIG. Will be done.

  When it is confirmed that the content specified by the content ID 632 is a copy-permitted content based on the usage control information 631, the copy execution unit 673 records the encrypted content recorded in the data recording area 610 of the disc 600. 615 is read and copied to a recording medium 677 such as a hard disk held by the information processing device 670.

  If it is confirmed that the content specified by the content ID 632 is not a copy-permitted content based on the usage control information 631, the process is stopped without executing the copy process. In this case, for example, a message indicating that the content cannot be copied may be displayed on a display as a user interface.

  If it is confirmed that the content specified by the content ID 632 is copy-permitted content based on the usage control information 631, the content is copied by the copy execution unit 673, and the content is copied to the recording medium 677. However, for example, when the usage control information recorded on the IC chip 630 is data in which the allowable number of copies is set, the processing for rewriting the usage control information is performed as described above. That is, after executing the copy process, the copy permission request unit 672 or the copy execution unit 673 rewrites the data of the IC chip 630 via the reader / writer (R / W) 675.

  In the copy process, it is possible to execute the decryption process of the encrypted content 615 and record the decrypted content in the recording medium 677. In this case, information necessary for the decryption process, for example, a data recording area The decrypted content obtained by reading the MKB 613, the volume ID 615, the media ID (PMSN) 633 recorded on the IC chip 630, and the like recorded in 610 and applying the read data to execute a decryption sequence according to the AACS standard Is recorded on the recording medium 677. As for the media ID (PMSN) 633, it is possible to record the information read in the copy permission determination process in a memory in the information processing device 670 and use the read information.

  As described above, in the content copy processing according to the present embodiment, the record information of the usage control information 631 recorded in the IC chip 630 provided in the disc 600 without obtaining permission information regarding the copy processing from the management server. Since the server connection is omitted and quick processing is possible, even if the information processing apparatus does not have a server connection function, content copying based on reliable use control is possible. Control becomes possible.

  Further, in the present embodiment, the content ID and the media ID (PMSN) used for determining whether copying is possible are also recorded on the IC chip 630, so that data can be read from the data recording area 610 when determining whether copying is possible. In addition, the data reading process from the BCA area 620 can be omitted, and a quick copy permission / inhibition determination process can be performed.

  Note that according to the AACS rules, the media ID (PMSN) needs to be recorded on the disc, and the current rule is to record in the BCA area. Therefore, the configuration of the sixth embodiment is not a configuration according to the current AACS regulations. However, only when it is necessary to manufacture a disk in which an IC chip having a media ID (PMSN) recorded therein is embedded and set the disk in accordance with the AACS regulations, the recorded media ID (PMSN) in the IC chip is used later. It is also possible to provide the user with a disc that complies with the AACS rules by performing a process such as writing to the BCA area.

  The present invention has been described in detail above with reference to specific embodiments. However, it is obvious that those skilled in the art can make modifications and substitutions of the embodiments without departing from the gist of the present invention. In other words, the present invention has been disclosed in the form of exemplification, and should not be interpreted in a limited manner. In order to determine the gist of the present invention, the claims should be taken into consideration.

  The series of processing described in the specification can be executed by hardware, software, or a combined configuration of both. When executing processing by software, the program recording the processing sequence is installed in a memory in a computer incorporated in dedicated hardware and executed, or the program is executed on a general-purpose computer capable of executing various processing. It can be installed and run. For example, the program can be recorded in advance on a recording medium. In addition to being installed on a computer from a recording medium, the program can be received via a network such as a LAN (Local Area Network) or the Internet, and installed on a recording medium such as a built-in hard disk.

  Note that the various processes described in the specification are not only executed in time series according to the description, but may be executed in parallel or individually according to the processing capability of the apparatus that executes the processes or as necessary. Further, in this specification, the system is a logical set configuration of a plurality of devices, and the devices of each configuration are not limited to being in the same casing.

  As described above, according to the configuration of one embodiment of the present invention, is usage control information for content stored on a disc, specifically, copy processing of content recorded on a disc allowed on a disc on which content is recorded? An IC chip in which usage control information indicating whether or not to use is provided is provided, and the usage control information read from the IC chip is referred to determine whether or not the disc recorded content can be copied. According to this configuration, it is not necessary to receive the copy permission information performed in the conventional system from the external server, and the information processing apparatus can determine whether the copy is permitted based on the usage control information read from the IC chip. Thus, it is possible to perform copy processing based on confirmation of permission information.

It is a figure explaining the reproduction | regeneration sequence of the disc recording content according to AACS regulation. It is a figure explaining the copy sequence of the disc recording content according to AACS regulation. It is a figure explaining the data recording structural example of the disc according to 1st Example of this invention. It is a figure explaining the copy sequence of the disc recording content according to 1st Example of this invention. It is a figure explaining the copy sequence of the disc recording content according to 1st Example of this invention. It is a figure explaining the data recording structural example of the disk according to 2nd Example of this invention. It is a figure explaining the copy sequence of the disc recording content according to 2nd Example of this invention. It is a figure explaining the data recording structural example of the disk according to 3rd Example of this invention. It is a figure explaining the copy sequence of the disc recording content according to 3rd Example of this invention. It is a figure explaining the data recording structural example of the disk according to 4th Example of this invention. It is a figure explaining the copy sequence of the disc recording content according to 4th Example of this invention. It is a figure explaining the data recording structural example of the disk according to 5th Example of this invention. It is a figure explaining the authentication sequence according to 5th Example of this invention. It is a figure explaining the authentication sequence according to 5th Example of this invention. It is a figure explaining the authentication sequence according to 5th Example of this invention. It is a figure explaining the data recording structural example of the disk according to 6th Example of this invention. It is a figure explaining the reproduction | regeneration sequence of the disc recording content according to 6th Example of this invention. It is a figure explaining the copy sequence of the disc recording content according to 6th Example of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Disc (information recording medium), 11 ... Script, 12 ... URL, 13 ... MKB, 14 ... Content ID, 15 ... Volume ID, 16 ... Media ID ( PMSN), 17 ... encrypted content, 20 ... drive, 21 ... key data, 22 ... host revocation list, 23 ... authentication processor, 24 ... MAC calculator, 30 ... Host, 31 ... Key data, 32 ... Drive revocation list, 33 ... Authentication processing unit, 34 ... MAC calculation unit, 35 ... Digisky, 36 ... Cryptographic processing module , 40 ... Information processing device, 41 ... Script execution unit, 42 ... Copy permission request unit, 43 ... Copy execution unit, 44 ... Recording medium, 50 ... Management server, 51 ··· Copy permission determining unit, 52 ··· Copy permission notifying unit, 100 ··· disk, 110 ··· Data recording area, ············································································ ..Content ID 115 ... Volume ID 116 ... Encrypted Content 120 ... BCA Area 121 ... Media ID (PMSN) 130 ... IC Chip 131 ... Use Control Information, 170 ... Information processing device, 171 ... Script execution unit, 172 ... Copy permission request unit, 173 ... Copy execution unit, 175 ... Reader / writer (R / W), 177 ... Recording medium, 200... Disc, 210... Data recording area, 211... Script, 212... URL, 213. ID, 215 ... encrypted content, 220 ... BCA area, 221 ... media ID (PMSN), 230 ... IC chip, 231 ... use control information, 232 ... content ID, 270: Information processing device, 271: Script execution unit, 272: Copy permission request unit, 273 ... Copy execution unit, 275 ... Reader / writer (R / W), 277 ... Recording Media, 300... Disc, 310 .. data recording area, 311... Script, 312... URL, 313... MKB, 314. ... BCA area, 321 ... Media ID (PMSN), 330 ... IC chip, 331 ... Usage control information, 332 ... Content ID 333: Media ID (PMSN), 370: Information processing device, 371: Script execution unit, 372: Copy permission request unit, 373: Copy execution unit, 375: Reader / writer (R / W), 377 ... recording medium, 400 ... disc, 410 ... data recording area, 411 ... MKB, 412 ... volume ID, 413 ... encrypted content, 420. ..BCA area, 421 ... Media ID (PMSN), 430 ... IC chip, 431 ... Script, 432 ... URL, 433 ... Usage control information, 434 ... Content ID, 435 ... Media ID (PMSN), 470 ... Information processing device, 471 ... Script execution unit, 472 ... Update process execution unit, 475 ... Reader Ita (R / W), 480 ... management server, 481 ... update information providing unit, 500 ... disk, 510 ... data recording area, 511 ... MKB, 512 ... volume ID, 513: Encrypted content, 520: BCA area, 521: Media ID (PMSN), 530 ... IC chip, 531 ... Script, 532 ... URL, 533 ... Usage control Information, 534 ... Content ID, 535 ... Media ID (PMSN), 536 ... Authentication data, 537 ... Authentication processing unit, 570 ... Information processing device, 571 ... Script execution unit 571 ... Script execution unit, 572 ... Copy permission request unit, 573 ... Copy execution unit, 575 ... Reader / writer (R / W), 577 ... Recording media A, 578 ... authentication data, 579 ... authentication processing unit, 580 ... management server, 581 ... copy permission determination unit, 582 ... copy permission notification unit, 585 ... authentication data 586, authentication processing unit, 600, disk, 610, data recording area, 611, script, 612, URL, 613, MKB, 614, volume ID, 615,. ..Encrypted content, 620... BCA area, 630... IC chip, 631... Usage control information, 632. Content ID, 633... Media ID (PMSN), 650. 651 ... Key data, 652 ... Host revocation list, 653 ... Authentication processing unit, 654 ... MAC calculation unit, 660 ... Host, 661 ... Key data, 662 ... Drive revocation list, 663 ... Authentication processing unit, 664 ... MAC calculation unit, 665 ... Digisky, 666 ... Cryptographic processing module, 670 ... Information processing device, 671 ... Script execution unit, 672 ... Copy permission request unit, 673 ... Copy execution unit, 675 ... Reader / writer (R / W), 677 ... Recording medium,

Claims (17)

Data reading means for reading usage control information corresponding to the disc recording content from an IC chip provided on the disc;
Copy permission requesting means for determining whether or not the disc recording content is copy-permitted content according to the recording information of the usage control information read by the data reading means;
A copy execution unit that reads content recorded on a disc and executes a copy recording process for a data recording unit other than the disc, on the condition that a determination result that copying is permitted is obtained from the usage control information;
An information processing apparatus comprising: The usage control information recorded on the IC chip is:
A configuration in which content copy permission information corresponding to a media ID that is a unique identifier of a disc and a content ID that is an identifier of a disc recording content is recorded;
The copy permission request means includes
It is configured to perform processing for determining whether or not the content corresponding to the content ID is copy-permitted content by referring to the corresponding record data of the usage control information using the media ID and content ID read from the disc. The information processing apparatus according to claim 1. The IC chip further includes:
It is a configuration in which a content ID that is an identifier of a disc recording content is recorded,
The copy permission request means includes
The content ID read from the IC chip is used to refer to the corresponding record data of the usage control information to determine whether or not the content corresponding to the content ID is a copy-permitted content. The information processing apparatus according to claim 1. The IC chip further includes:
It is a configuration in which a media ID that is a unique identifier of a disc is recorded,
The copy permission request means includes
The configuration is such that the media ID read from the IC chip is used to refer to the corresponding record data of the usage control information to determine whether the content corresponding to the media ID is copy-permitted content. The information processing apparatus according to claim 1. The IC chip further includes:
A configuration in which a content ID that is an identifier of a disc recording content and a media ID that is a unique identifier of the disc are recorded;
The copy permission request means includes
Using the content ID and the media ID read from the IC chip, the corresponding record data of the usage control information is referred to and a process for determining whether the content corresponding to the content ID and the media ID is a copy-permitted content is performed. The information processing apparatus according to claim 1, wherein the information processing apparatus is configured. The information processing apparatus further includes:
An update process execution unit for executing an update process of the record information of the IC chip;
The update process execution unit
2. The configuration according to claim 1, wherein communication with a management server that provides update information of the IC chip is executed, and data update processing for writing information received from the management server to the IC chip is performed. Information processing device. The IC chip is
(A) a script that is a simple program;
(B) a URL indicating the address of the management server;
It is a configuration that records
The information processing apparatus has script execution means for executing the script,
The update processing execution unit executes processing for transmitting data read from the IC chip to the management server designated by the URL by executing communication with the management server in accordance with a program executed by the script execution unit. The information processing apparatus according to claim 5, wherein the information processing apparatus is configured to perform the above process. The information processing apparatus further includes:
Having an authentication processing unit for executing authentication processing;
The authentication processing unit
Perform authentication processing with the authentication processing unit configured in the IC chip provided on the disk,
The information processing apparatus according to claim 1, wherein the information processing apparatus is configured to execute processing for using recorded data on an IC chip or a disk on condition that the authentication process is established. A disc with recorded content,
A data recording unit for recording content;
It has an IC chip that records usage control information corresponding to the disc recording content,
The IC chip has a configuration in which data can be read by a non-contact data reading unit, and when using the disc recording content in the information processing apparatus, the usage control information is read from the IC chip. A disc characterized in that the use of disc recorded content is controlled according to the above. The usage control information recorded on the IC chip is:
A configuration in which content copy permission information corresponding to a media ID that is a unique identifier of a disc and a content ID that is an identifier of a disc recording content is recorded;
10. The information processing apparatus according to claim 9, wherein the information processing apparatus is configured to determine whether copying is permitted by referring to correspondence data of the usage control information using a media ID and content ID readable from a disc. disk. The IC chip further includes:
It is a configuration in which a content ID that is an identifier of a disc recording content is recorded,
10. The information processing apparatus according to claim 9, wherein a content ID is read from the IC chip when a disc recording content is used in an information processing apparatus, and whether or not content copying using the content ID is permitted is determined. Disc. The IC chip further includes:
It is a configuration in which a media ID that is a unique identifier of a disc is recorded,
10. The information processing apparatus according to claim 9, wherein when the content recorded on the disc is used, the media ID is read from the IC chip, and whether or not the content using the media ID is allowed to be copied is determined. Disc described. The IC chip further includes:
A configuration in which a content ID that is an identifier of a disc recording content and a media ID that is a unique identifier of the disc are recorded;
When using the disc recorded content in the information processing apparatus, the content ID and the media ID are read from the IC chip, and whether or not the content can be copied using the content ID and the media ID is determined. The disk according to claim 9. The IC chip further includes:
A script which is a simple program, a URL indicating the address of the management server,
When the disc recorded content is used in the information processing apparatus, the data is read from the IC chip, and the access processing to the server specified by the URL is performed by executing the script. The disk according to claim 9. The IC chip is
Having an authentication processing unit for executing authentication processing;
The authentication processing unit
10. The disc according to claim 9, wherein the disc is configured to perform an authentication process with an information processing apparatus or an external server that uses the disc recorded content. In an information processing apparatus, an information processing method for performing processing of using a disc recording content,
A data reading step in which the data reading means reads usage control information corresponding to the disc recorded content from an IC chip provided on the disc;
A copy permission requesting step, wherein the copy permission requesting unit determines whether or not the disc recording content is copy-permitted content according to the recording information of the usage control information read in the data reading step;
The copy execution means for reading the content recorded on the disc and executing the copy recording process for the data recording means other than the disc on condition that the copy execution means obtains the determination result that the copy is permitted from the usage control information Steps,
An information processing method characterized by comprising: In the information processing apparatus, a computer program for performing a process of using a disc recording content,
A data reading step for causing the data reading means to read usage control information corresponding to the disc recorded content from an IC chip provided on the disc;
A copy permission requesting step for causing a copy permission requesting unit to determine whether or not the disc recording content is copy-permitted content according to the recording information of the usage control information read in the data reading step;
Copy execution that causes the copy execution means to read the content recorded on the disc and execute the copy recording processing for the data recording means other than the disc on the condition that the determination result that the copy is permitted is obtained from the usage control information Steps,
A computer program characterized by comprising:

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