JP2006065503A - Recording medium storing right information, information processor, and method for managing right information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for preventing right information stored in a recording medium from being lost by making it possible to continue a process even if the process is interrupted when the right information is shifted to the other recording medium or duplicated. <P>SOLUTION: Transition determination information (transition flag) showing whether or not the right information is shifted between the recording medium and the other recording medium and transition target information serving as information about the latter recording medium to which the right information is transitioned are stored in the recording medium as a right information entry together with the right information. The host device refers to the transition determination information, and when determining that the right information is shifted, specifies the recording medium to which the right information is transitioned according to the transition target information, thus making it possible to continue the process of shifting. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a recording medium that stores content right information, an information processing apparatus thereof, and a right information management method. In particular, the present invention relates to a management method at the time of suspension of right information movement processing or duplication processing.

  There are various types of media such as semiconductor recording media, magnetic discs, optical discs, and magneto-optical discs as recording media for recording various digital data (hereinafter, content) such as music content, moving image content, and still image content.

  Of these, in particular, semiconductor recording media have rapidly increased in capacity, speed, and price in recent years in addition to the features of small size and light weight, including digital cameras, mobile phones, portable music players, TVs, DVD recorders, etc. It can be used with various devices. A typical semiconductor recording medium includes a semiconductor memory card such as an SD memory card.

  Among them, an SD memory card or the like whose market share is rapidly increasing has a copyright protection function, and therefore can prevent unauthorized copying. Therefore, it is possible to safely record copyrighted content.

  An example of a content storage method realized in a semiconductor recording medium having a copyright protection function is as follows.

  The semiconductor recording medium includes a protection area that can be accessed only by the host device by authenticating each other's validity between the semiconductor recording medium and the host device (such as a playback device or a recording device), and a host device And a normal area that can be freely accessed. Then, the encrypted content (hereinafter referred to as encrypted content) is recorded in the normal area, and a key for encrypting the content (hereinafter referred to as content key) is stored in the protected area. Content recorded by such a method can be prohibited from being played back on unauthorized devices that cannot authenticate each other's legitimacy. This is because the unauthorized device cannot decrypt the encrypted content because it cannot read the content key. Furthermore, even if only the encrypted content stored in the normal area is copied to another recording medium, the unauthorized device cannot copy the content key, and therefore there is no content key in the copy destination recording medium. It becomes. Accordingly, it is possible to prohibit reproduction of the illegally copied encrypted content.

  Conventionally, music content ripped from a music CD purchased by a user has been the main content stored in the above-described storage method on a semiconductor recording medium having a copyright protection function.

  However, in recent years, application development for various contents using the copyright protection function of the semiconductor recording medium is increasing.

  For example, using a PC connected via the Internet network, a copyrighted content such as music or a book is downloaded from a content provider at a required price, and the downloaded content is recorded on a semiconductor recording medium. It is possible to play back the content stored on the semiconductor recording medium with a player.

  Further, it is possible to purchase contents not only from a PC connected to the Internet network but also from an electronic terminal (KIOSK terminal) installed in a specific place such as a predetermined store or station.

The content stored in the semiconductor recording medium having the copyright protection function in this way can be moved to another recording medium (for example, a hard disk built in a personal computer owned by the user) (for example, , See Patent Document 1). Accordingly, these application developments are highly convenient for users, and various sales networks for content providers will spread. Therefore, further development and spread are expected in the future.
JP 2002-15147 A

  However, the above technique has the following problems.

  Content information stored in a semiconductor recording medium having a copyright protection function, and control information that is information related to control methods when copying, moving, and reproducing content (hereinafter, content information and control information are combined with rights information and control information). The process of moving the description) to another recording medium is generally performed in the following procedure.

  First, the information processing apparatus that performs the transfer process reads the right information from the transfer source recording medium onto the internal memory of the information processing apparatus. Next, the right information is erased from the transfer source recording medium. Thereafter, the right information on the internal memory is written to the destination recording medium, and the right information on the internal memory is erased.

  Accordingly, there is no moment in the migration process where the same valid right information exists simultaneously on the migration source and destination recording media. For this reason, even if a malicious user intentionally interrupts the movement process, the right information does not increase illegally. When the movement process is interrupted, the right information is lost.

  However, the interruption of the movement process is not necessarily caused by the user's intentional operation. As an example, a power failure of the information processing apparatus due to a power failure can be considered. In such a case, the moving right information is lost due to an event unrelated to the user's intentional operation. In addition, a general user who is not malicious will suffer a great loss of losing the right information purchased by paying the consideration. This is an obstacle to the widespread use of various content usage environments in the future.

  In the present invention, in view of the above problems, even if the processing is interrupted when the right information is moved or copied to another recording medium in the recording medium storing the right information, the processing can be continued. It is an object of the present invention to provide a method in which the right information is not lost.

  The recording medium according to the present invention includes content right information, in-transition determination information indicating whether the right information is in transition (moving or copying) with another recording medium, and a transition target The main feature is that it stores transition target information that is information of another recording medium. Therefore, when the host device refers to the in-transition determination information and determines that the right information is in transition, the host device can specify the transition target recording medium by the transition target information and continue the transition process. .

  The information processing apparatus according to the present invention includes the transition determination information corresponding to the right information and the transition target information when the transition processing execution unit moves or duplicates the transition processing execution unit that moves or copies the right information. The main feature is that it includes an in-transition information processing unit for referring to and updating the information.

  In the management method according to the present invention, when the right information stored in the first recording medium is moved to the second recording medium, the transition determination corresponding to the first right information stored in the first recording medium is performed. A step of setting information during transition, a step of setting during-transition determination information corresponding to the second right information stored in the second recording medium, and a step of storing information in the first recording medium A step of copying the right information of one to the second right information of the second recording medium, and the transition determination information corresponding to the first right information stored in the first recording medium is set to non-transition And a step of setting in-transition determination information corresponding to the second right information stored in the second recording medium to a non-transition step.

  By using the recording medium storing the rights information, the information processing apparatus, and the rights information management method according to the present invention, the rights information is stored even when the processing is interrupted in the transfer or copying of the rights information between the recording media. Since it does not increase or disappear illegally, it is possible to provide a user with an easy-to-use content usage environment.

  Hereinafter, embodiments will be described.

(Embodiment 1)
Hereinafter, Embodiment 1 of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram showing a semiconductor recording medium 100 according to the present invention and a configuration example of the semiconductor recording medium 100.

  The semiconductor recording medium 100 includes a host interface unit 110, a control unit 120, and a recording area 130.

  The host interface unit 110 has a function of exchanging information with a host device (reproducing device, recording device, etc.) of the semiconductor recording medium 100.

  The control unit 120 has a function of performing internal control of the semiconductor recording medium 100. Read and write commands received from the host device are interpreted, and the recording area 130 is accessed. If necessary, a process for notifying the host device of the result via the host interface unit 110 is performed.

  The recording area 130 has a function of storing digital data, and is physically composed of a nonvolatile memory such as a flash memory, and includes a special area 131, a protection area 132, and a normal area 133. Shall.

  The special area 131 is an area in which digital data used internally by the semiconductor recording medium 100 is stored, and is an area that cannot be directly accessed by the host device. It is assumed that a unique medium ID (identification information) and a unique medium key are stored in each semiconductor recording medium 100 when the semiconductor recording medium 100 is manufactured.

  The media unique key is a value that can be read only when the host device and the semiconductor recording medium 100 authenticate each other, and is used to encrypt the content key.

  The media unique ID is a value that can be read by an arbitrary host device, and is used as an identifier of a recording medium.

  The protected area 132 is an area that can be accessed only when the host device and the semiconductor recording medium 100 authenticate each other. Therefore, only the host device that has succeeded in authentication can read and write arbitrary digital data.

  The normal area 133 is an area where arbitrary digital data can be read and written from the host device. Unlike the protection area 132, it is not necessary to authenticate each other.

  The protection area 132 and the normal area 133 are each composed of a search information storage area and a data area.

  The data area is an area for storing arbitrary digital data.

  The search information storage area is an area for storing information (address, size, etc.) necessary for the host device to retrieve each digital data stored in the data area.

  In the present embodiment, each digital data is managed by a FAT file system, and an area storing information (file system management information) necessary for the FAT file system is the search information storage area. To do.

  Therefore, data stored in the protection area 132 and the normal area 133 can be handled as a file.

  FIG. 2 shows a configuration example when the FAT file system is adopted. In FIG. 2, the search information storage area stores a master boot record partition table that stores information for managing the data area by dividing it into a plurality of areas called partitions, and stores management information in one partition. A partition boot sector, a FAT table 1 and a FAT table 2 indicating storage locations of data included in the file, and a root directory entry for storing information on files and directories existing immediately under the root directory. The data area is divided and managed in units called clusters. Details of the FAT file system beyond this are omitted.

  Next, a method for storing rights information and content data according to the present invention will be described with reference to FIGS.

  FIG. 3 is a diagram showing an example of a method for storing content and right information in the semiconductor recording medium 100.

  In FIG. 3, a part or all of N contents (contents # 1,..., Content #N) are partly and entirely contained in N content keys (content keys # 1,..., Content key #N). It is encrypted and stored in the normal area 133 of the semiconductor recording medium 100 as N pieces of encrypted content (encrypted content # 1,..., Encrypted content #N).

  N pieces of right information entries (right information entry # 1,..., Right information entry #N) including the content keys are partly a media unique key stored in the special area 131 of the semiconductor recording medium 100. Alternatively, all are encrypted and stored in the protected area 132 of the semiconductor recording medium 100 as N encrypted right information entries (encrypted right information entry # 1,..., Encrypted right information entry #N).

  FIG. 4 is a diagram showing an example of the data structure of the right information entry. In the example of FIG. 4, the following information is stored in the right information entry. That is, a content ID for identifying content corresponding to the right information, a right information validity flag (validity determination information) that is information for identifying whether the right information is valid, and encryption of the corresponding content Content key that is a key used for encryption and decryption, control information that is information for controlling the corresponding content, and information for identifying whether or not the corresponding content is moving to another recording medium Is a moving flag (transition determination information), and movement target information (transition target information) that is information of the other recording medium when the corresponding content is moving to another recording medium. Has been.

  Here, as the control information, the copy control information that is information related to the control method when copying the right information, the movement control information that is information related to the control method when moving the right information, Stored is reproduction control information that is information relating to a control method for reproducing content corresponding to the information.

  In the present embodiment, the movement control information is assumed to be composed of 4 bits. When “0000 (all bits are 0)”, “movement is impossible”, and when “1111 (all bits are 1)”, “ It is assumed that “unlimited movement is possible”, and other values represent “number of possible movements”.

  In addition, as the movement target information, a movement source flag for identifying whether the other recording medium is the movement source or the movement destination of the right information (ON for movement source, OFF for movement destination), A media unique ID of another recording medium, a rights information identifier that is an identifier of a rights information entry that is a transfer target of the rights information on the other recording medium, and the like are stored.

  Of the information included in the right information entry, the main focus in the present invention is the moving flag and the moving target information.

  Next, a configuration example of the information processing apparatus 200 according to the present invention will be described with reference to FIG.

  FIG. 5 is a diagram illustrating a configuration example of the information processing apparatus 200 that moves the right information stored in the first semiconductor recording medium 300 to the second semiconductor recording medium 400.

  The information processing apparatus 200 includes a first recording medium access unit 211, a second recording medium access unit 212, a data processing unit 220, an input unit 230, and a user notification unit 240.

  The first recording medium access unit 211 has a function of loading the first semiconductor recording medium 300 and reading / writing data stored in the semiconductor recording medium 300.

  The second recording medium access unit 212 has a function of loading the second semiconductor recording medium 400 and reading / writing data stored in the semiconductor recording medium 400.

  The data processing unit 220 is a part that processes data stored in the first semiconductor medium 300 and the second semiconductor recording medium 400, and includes a movement target determination unit 221 (transition target determination unit) and a movement processing execution unit 222. (Transition process execution unit), moving information processing unit 223 (transition information processing unit), authentication processing unit 224, and encryption / decryption processing unit 225. The data of the first semiconductor medium 300 and the second semiconductor recording medium 400 are accessed via the first recording medium access unit 211 and the second recording medium access unit 212.

  The movement target determination unit 221 has a function of determining a right information entry to be subjected to movement processing based on information from the input unit 230. The movement target determining unit 221 determines one of the right information entries for which the right information validity flag is valid as a movement source, and designates one of the right information entries for which the right information validity flag is invalid as the movement destination. decide.

  The migration process execution unit 222 changes from the migration source right information entry (hereinafter referred to as migration source right information entry) determined by the migration target determination unit 221 to the migration destination right information entry (hereinafter referred to as migration destination right information entry). It has a function of executing processing for moving the right information.

  The in-movement information processing unit 223 has a function of referring to and updating the in-movement flag and the movement target information included in the right information when the movement processing execution unit 222 executes the movement process.

  The authentication processing unit 224 has a function of performing authentication processing necessary for accessing data stored in the protection areas of the first semiconductor medium 300 and the second semiconductor recording medium 400.

  The encryption / decryption processing unit 225 has a function of encrypting and decrypting data. Processing for decrypting the information of the rights information entry encrypted with the media unique key, processing for encrypting the information of the rights information entry not encrypted with the media unique key, and the like are performed.

  The input unit 230 is a part that receives input from the user.

  The user notification unit 240 is a part that notifies the user. In the present embodiment, it is assumed that a monitor for notifying the user's vision is provided.

  Next, the rights information management method according to the present invention will be described with reference to FIGS.

  6 and 7 are flowcharts illustrating an example of an operation sequence when the information processing apparatus 200 moves the right information stored in the first semiconductor recording medium 300 to the second semiconductor recording medium 400.

  First, a schematic sequence of right information transfer processing will be described with reference to FIG.

  Since part or all of the right information entry stored in the first semiconductor recording medium 300 and the right information entry stored in the second semiconductor recording medium 400 are encrypted and stored in the protection area. In order to gain access, authentication processing by the authentication processing unit 224 and encryption / decryption processing by the encryption / decryption processing unit 225 are always required. However, description of this processing is omitted in all subsequent descriptions.

  (S101) First, the movement target determining unit 221 of the information processing device 200 determines a source right information entry and a destination right information entry based on information from the input unit 230.

  The move source right information entry is a right information entry stored in the first semiconductor recording medium 300, in which the right information validity flag is ON (that is, valid right information), and the movement control information is “move”. One item that is not “impossible” is determined.

  In the transfer destination right information entry, one of the right information entries stored in the second semiconductor recording medium 400 with the right information valid flag being OFF (that is, invalid right information) is determined.

  FIG. 8 shows an example of the migration source right information entry and the migration destination right information entry determined at this time. In the example of FIG. 8, the p-th right information entry among the right information entries of the first semiconductor recording medium 300 (media unique ID = 0001) is determined as the movement source right information entry, and the second semiconductor recording medium 400 ( Of the right information entries of media unique ID = 0002), the qth right information entry is determined as the destination right information entry. Hereinafter, an example of FIG. 8 will be described.

  Information regarding the determined transfer source right information entry and transfer destination right information entry is notified to the transfer processing execution unit 222.

  (S102) The movement processing execution unit 222 notifies the information processing unit 223 during movement of information regarding the movement source right information entry.

  The moving information processing unit 223 refers to the moving flag of the transfer source right information entry via the first recording medium access unit 211. As a result of the reference, the process proceeds to S103 when the moving flag of the transfer source right information entry is ON, and to S104 when it is OFF.

  (S103) The moving information processing unit 223 updates the moving flag of the transfer source right information entry to OFF via the first recording medium access unit 211.

  (S104) The information processing unit 223 during movement clears the movement target information in the movement source right information entry. More specifically, an invalid value is set in the media unique ID and right information identifier included in the movement target information.

  Further, all information included in the destination right information entry is cleared.

  (S105) The migration process execution unit 222 executes a migration main process, which will be described later, from the migration source right information entry to the migration destination right information entry, and ends the process.

  FIG. 7 is a flowchart showing a detailed sequence example of the moving main process.

  (S201) The moving information processing unit 223 writes the movement target information of the movement source right information entry stored in the first semiconductor recording medium 300. The information to be written as the movement target information is information regarding the movement destination right information entry determined in S101. Specifically, “OFF” is written in the movement source flag, “0002” is written in the media unique ID, and “q” is written in the right information identifier.

  (S202) The information processing unit 223 during movement writes the movement target information of the movement destination right information entry stored in the second semiconductor recording medium 400. What is written as the movement target information is information relating to the movement source right information entry determined in S101. Specifically, “ON” is written in the migration source flag, “0001” is written in the media unique ID, and “p” is written in the right information identifier. FIG. 9 shows the state of the migration source right information entry and the migration destination right information entry at this time.

  (S203) The moving information processing unit 223 sets the moving flag of the transfer source right information entry stored in the first semiconductor recording medium 300 to “ON”.

  (S204) The moving information processing unit 223 sets the moving flag of the transfer destination right information entry stored in the second semiconductor recording medium 400 to “ON”.

  (S205) The movement process execution unit 222 sets the right information valid flag of the movement source right information entry stored in the first semiconductor recording medium 300 to “OFF”. FIG. 10 shows the state of the migration source right information entry and the migration destination right information entry at this time.

  (S206) The movement processing execution unit 222 moves the content ID, content key, control information, and the like of the movement source right information entry stored in the first semiconductor recording medium 300 to the movement stored in the second semiconductor recording medium 400. Duplicate in prior rights information entry.

  At this time, if the migration control information of the migration source right information entry is “1111 (all bits are 1)” indicating “unlimited migration is possible”, the migration control information of the migration destination right information entry is also “1111 ( All bits are 1) ”. When the movement control information of the movement source right information entry has a value other than that, it represents “number of times of movement”, and thus a value decremented by 1 is written in the movement control information of the movement destination right information entry.

  When the movement control information of the movement source right information entry is “0001 (movable only once)”, “0000 (all bits are 0)” representing “move impossible” as the movement control information of the movement destination. Will be written.

  FIG. 11 shows the state of the migration source right information entry and the migration destination right information entry at this time.

  (S207) The migration processing execution unit 222 sets the rights information valid flag of the migration destination rights information entry stored in the second semiconductor recording medium 400 to “ON”. FIG. 12 shows the state of the migration source right information entry and the migration destination right information entry at this time.

  (S208) The migration process execution unit 222 erases the content ID, content key, control information, etc. of the migration source right information entry stored in the first semiconductor recording medium 300. FIG. 13 shows the state of the migration source right information entry and the migration destination right information entry at this time.

  (S209) The moving information processing unit 223 sets the moving flag of the transfer source right information entry stored in the first semiconductor recording medium 300 to “OFF”. FIG. 14 shows the state of the migration source right information entry and the migration destination right information entry at this time.

  (S210) The moving information processing unit 223 sets the moving flag of the transfer destination right information entry stored in the second semiconductor recording medium 400 to “OFF”.

  (S211) The moving information processing unit 223 deletes the movement target information in the movement source right information entry stored in the first semiconductor recording medium 300.

  (S212) The information processing unit 223 during movement erases the movement target information in the movement destination right information entry stored in the second semiconductor recording medium 400. FIG. 15 shows the state of the migration source right information entry and the migration destination right information entry at this time.

  FIG. 16 shows a state example of the migration source right information entry and the migration destination right information entry in each step of the migration main process described above.

  Until right after S204, since the right information valid flag of the move source right information entry is ON, valid rights information exists in the move source recording medium. In addition, immediately after S207, the right information valid flag of the destination right information entry is ON, so that valid right information exists in the destination recording medium. In other cases, valid right information does not exist in either the destination or the source.

  Therefore, as in the case of the conventional movement process, there is no moment when both the source and destination rights information exist at the same time in the course of the movement process according to the present invention. For this reason, even if a malicious user intentionally interrupts the movement process, the right information does not increase illegally.

  Further, when there is no valid right information at either the destination or the source, such as immediately after S205 or immediately after S206, the return processing (1) according to the present invention described below is executed. It is possible to restore the rights information lost in

  FIG. 17 shows an operation sequence for checking whether or not each right information stored in the first semiconductor recording medium 300 or the second semiconductor recording medium 400 attached to the information processing apparatus 200 is being transferred. It is a flowchart which shows an example.

  This processing may be performed at the following timing.

  That is, when the first semiconductor recording medium 300 or the second semiconductor recording medium 400 is attached to the information processing apparatus 200, the first semiconductor recording medium 300 or the second semiconductor recording medium 400 is attached to the information processing apparatus 200. When the information processing apparatus 200 is turned on in a state where the information is input, or when the user intentionally requests it via the input unit 230.

  Hereinafter, a case where the user selects the first semiconductor recording medium 300 as a processing target via the input unit 230 will be described as an example.

  (S301) First, the movement target determining unit 221 of the information processing apparatus 200 determines the first semiconductor recording medium 300 as a recording medium to be processed based on information from the input unit 230.

  The movement target determination unit 221 sets the internal variable i to 1. Information on the internal variable i is notified to the movement processing execution unit 222 and the information processing unit 223 during movement.

  (S302) The moving information processing unit 223 refers to the moving flag of the i-th right information entry of the first semiconductor recording medium 300.

  (S303) If the moving flag referred to in S302 is ON, the process proceeds to S304. If it is OFF, the process proceeds to S308.

  (S304) The information processing unit 223 during movement refers to the movement target information in the i-th right information entry of the first semiconductor recording medium 300, and acquires information (such as a media unique ID) of the recording medium to be moved. . Then, the user is notified via the user notification unit 240 that “the i-th right information of the first semiconductor recording medium 300 is moving” and “information of the recording medium to be moved that is necessary for the return process”. To be notified.

  FIG. 18 shows an output example to the monitor in the user notification unit 240. In the example of FIG. 18, information related to the i-th right information of the first semiconductor recording medium 300 is displayed in the upper part of the screen. In addition, information on the recording medium necessary for the return process is displayed at the bottom of the screen.

  Further, when the user instructs execution of the return process, it is necessary to mount the recording medium necessary for the return process on the information processing apparatus 200 and press the OK button, and the user executes the return process. When not instructing, it is notified that the SKIP button needs to be pressed.

  (S305) When the user gives an instruction to execute the return process via the input unit 230, the process proceeds to S306. If not instructed, the process proceeds to S308.

  (S306) If the semiconductor recording medium necessary for the return process is loaded in the information processing apparatus 200, the process proceeds to the return process of S307. If not, the process proceeds to S308.

  (S307) The return process (1) is executed. Details will be described later.

(S308) The movement target determining unit 221 adds 1 to the internal variable i. (S309) When the internal variable i is larger than the total number (N) of right information entries stored in the first semiconductor recording medium 300. The process ends. If N or less, the process returns to S302 and continues.

  FIG. 19 is a flowchart showing an example of an operation sequence of the return process (1).

  (S401) The moving information processing unit 223 refers to the movement target information of each movement target right information entry (two of the movement source right information entry and the movement destination right information entry) acquired in S304.

  (S402) If each piece of movement target information referenced in S401 satisfies both of the following two conditions, the process proceeds to S403. In other cases, the process ends.

  Condition 1: Of the two pieces of movement target information, one movement source flag is OFF and the other movement source flag is ON.

  Condition 2: The media unique ID and right information identifier of the movement target information store the media unique ID of the recording medium in which the other right information is stored and the right information identifier of the other right information entry.

  (S403) The moving information processing unit 223 refers to the moving flag of the transfer source right information entry and the transfer destination right information entry. If both are "ON", the process proceeds to S405. Otherwise, the process proceeds to S404.

  (S404) The moving information processing unit 223 sets “OFF” to “OFF” of the moving flag of the transfer source right information entry and the transfer destination right information entry. Further, the migration process execution unit 222 deletes the migration target information in the migration source right information entry and the migration destination right information entry, and completes the process.

  (S405) The movement process execution unit 222 refers to the right information validity flag of the movement source right information entry and the movement destination right information entry. If any of them is “ON”, the process proceeds to S407. If both are "OFF", the process proceeds to S406.

  It should be noted that when rights information transfer processing according to the present invention is performed, both cannot be “ON”. If both are “ON”, appropriate error processing is executed and the process ends.

  (S406) Of the moving main process described with reference to FIG. 7, S206 and subsequent steps are executed to complete the moving process.

  (S407) The movement process execution unit 222 clears all information included in the right information entry whose right information valid flag is “OFF” among the movement source right information entry and the movement destination right information entry.

  In addition, the information processing unit 223 during movement sets both the movement flag of the movement source right information entry and the movement destination right information entry to “OFF”.

  Further, the information processing unit 223 during movement erases the movement target information in the movement source right information entry and the movement destination right information entry.

  When the return process (1) described above is performed, the migration main process is interrupted immediately after S205 or immediately after S206, and there is no valid right information at either the migration destination or the migration source. It is also possible to restore lost rights information.

  FIG. 20 shows a state example of the migration source right information entry and the migration destination right information entry in each step of the migration main process. By performing the return process (1) as necessary, the right information is not lost even if the right information transfer process is interrupted at any timing.

  As described above, by using the recording medium, the information processing apparatus, and the right information management method according to the present invention, it is possible to prevent the right information from being lost even if the right information transfer process is interrupted, and to obtain the right information illegally. An increase can also be prevented.

  The present invention is particularly effective in a semiconductor recording medium with a copyright protection function and a host device of the semiconductor recording medium.

  Although the present invention has been described based on the above embodiment, it is needless to say that the present invention is not limited to the above embodiment. Various modifications can be made without departing from the spirit of the present invention. The following cases are also included in the present invention.

  (1) Although the semiconductor recording medium has been described in the present embodiment, the same configuration can be realized as long as it is a readable / writable recording medium having a copyright protection function. Therefore, the present invention is effective even for a recording medium (hard disk, optical disk, magnetic disk, etc.) other than a semiconductor recording medium.

  The recording medium may be a recording medium configured by combining a plurality of recording media. For example, by combining a relatively small-capacity semiconductor recording medium having a copyright protection function and a relatively large-capacity hard disk not having a copyright protection function, one virtual recording medium (copyright Protection function, large capacity).

  (2) In the present embodiment, the FAT file system is used in the search information storage area. However, other file systems such as FAT32 and UDF may be used. Of course, the recording address and the like may be managed.

  (3) The storage method of FIG. 3 in this embodiment is an example.

  Therefore, although it has been described that the content key is encrypted with the media unique key, the present invention is not limited to this. For example, in the case of content distributed via a network, it may be encrypted with a unique key for each distribution service.

  Further, the content may be stored in the protected area 132 or may be stored in another recording medium. Furthermore, it is not necessary to encrypt if security is ensured. The present invention is effective as long as the right information is stored in the recording medium of the present invention.

  (4) The format of the rights information in FIG. 4 in the present embodiment is an example.

  Therefore, the control information and the content key may be managed as separate files when the correspondence with the content is clarified by some method.

  Similarly, the moving flag and the movement target information may be managed as separate files. At this time, the file including the moving flag or the movement target information may be a temporary file that is generated at least immediately before the moving process and is deleted at least immediately after the moving process.

  In addition, the rights information in the present embodiment has a one-to-one correspondence with the content, but one piece of rights information may correspond to a plurality of rights information. Conversely, one piece of right information may correspond to a plurality of contents.

  In this embodiment, the moving flag and the movement target information are described as being managed as a file. However, if the recording medium includes a dedicated register for storing the information, the file is stored as a file. It is not necessary to manage.

  (5) In this embodiment, an example is shown in which the transfer source recording medium and the transfer destination recording medium are different. However, the present invention is effective even when transfer processing is performed in different right information entries in the same recording medium. It is.

  (6) In the present embodiment, an example in which the moving flag is used as the transition determination information and the movement target information is used as the transition target information is described. However, the following application examples are also conceivable.

  That is, this is a case where the movement target information that is the transition target information also serves as the transition determination information.

  More specifically, when a valid value is stored as movement target information, it means that the transition determination information is “in transition”, and an invalid value is stored as the movement target information. In the case where no value is stored, it means that the transition determination information is “not transitioning”.

  At this time, the movement target information plays two roles: the transition target information and the in-transition determination information.

  (7) In the present embodiment, it has been described that the medium unique ID, which is a unique value for each recording medium, is stored in advance in the recording medium. However, this is a case where the medium unique ID is not stored. However, the following applications can be considered.

  That is, the information processing apparatus generates arbitrary identification information before the movement process, and records the identification information on the movement source recording medium and the movement destination recording medium. In the movement process, it is possible to specify the movement source recording medium or the movement destination recording medium by using the identification information as movement target information.

  The identification information may be a random number, a volume name of a recording medium, or the like.

(Embodiment 2)
Hereinafter, Embodiment 2 of the present invention will be described in detail with reference to the drawings.

  Since the configuration of the semiconductor recording medium in the present embodiment is the same as that in the first embodiment, description thereof is omitted.

  In addition, the right information and content storage method in the present embodiment is the same as that in the first embodiment. However, the data structure example of the right information entry is as shown in FIG.

  In the example of FIG. 21, the following information is stored in the right information entry. That is, a content ID for identifying content corresponding to the right information, a right information validity flag (validity determination information) that is information for identifying whether the right information is valid, and encryption of the corresponding content Content key that is a key used for encryption and decryption, control information that is information for controlling the corresponding content, and information for identifying whether or not the corresponding content is being copied to another recording medium A duplicating flag (transition determination information), a duplicated flag (transition determination information) that is information for identifying whether the corresponding content has been copied with another recording medium, Stored is replication target information (transition target information), which is information on the other recording medium when the corresponding content is being replicated with another recording medium.

  Here, as the control information, the copy control information that is information related to the control method when copying the right information, the movement control information that is information related to the control method when moving the right information, Stored is reproduction control information that is information relating to a control method for reproducing content corresponding to the information.

  In the present embodiment, the duplication control information is assumed to be composed of 4 bits. When “0000 (all bits are 0)”, “duplication is impossible”, and when “1111 (all bits are 1)”, “ It is assumed that “unlimited duplication is possible”, and other values represent “duplicatable number of times”.

  Further, as the duplication target information, a duplication source flag for identifying whether the other recording medium is a duplication source or duplication destination of the right information (ON for duplication source, OFF for duplication destination), Media unique ID of another recording medium, rights information identifier that is an identifier of the rights information entry that is a copy target of the rights information in the other recording medium, and source copy control that stores copy control information of the source right information entry Information etc. are stored.

  Of the information included in the right information entry, the main focus of the present invention is the duplicating flag, the duplicated flag, and the duplication target information.

  Next, a configuration example of the information processing apparatus 600 according to the present invention will be described with reference to FIG.

  FIG. 22 is a diagram illustrating a configuration example of an information processing apparatus 600 that replicates the right information stored in the first semiconductor recording medium 700 to the second semiconductor recording medium 800.

  The information processing apparatus 600 includes a first recording medium access unit 611, a second recording medium access unit 612, a data processing unit 620, an input unit 630, and a user notification unit 640.

  Among these, since it is the same as that of Embodiment 1 except the data processing part 620, description is omitted.

  The data processing unit 620 is a part that processes data stored in the first semiconductor medium 700 and the second semiconductor recording medium 800, and includes a replication target determination unit 621 (transition target determination unit) and a replication processing execution unit 622. (Transition processing execution unit), an information processing unit during replication 623 (information processing unit during transition), an authentication processing unit 624, and an encryption / decryption processing unit 625. The data in the first semiconductor medium 700 and the second semiconductor recording medium 800 is accessed via the first recording medium access unit 611 and the second recording medium access unit 612.

  The copy target determination unit 621 has a function of determining a right information entry to be copied based on information from the input unit 630. The duplication target determining unit 621 determines one of the right information entries for which the right information validity flag is valid as a duplication source, and designates one of the right information entries for which the right information validity flag is invalid as a duplication destination. decide.

  The duplication processing execution unit 622 changes from the duplication source right information entry (hereinafter referred to as duplication source right information entry) determined by the duplication target decision unit 621 to the duplication destination right information entry (hereinafter referred to as duplication destination right information entry). It has a function to execute processing for copying rights information.

  The during-duplication information processing unit 623 has a function of referring to and updating the duplication flag and the duplication flag and the duplication target information included in the right information when the duplication processing execution unit 622 executes duplication processing. I have.

  The authentication processing unit 624 has a function of performing an authentication process necessary for accessing data stored in the protection areas of the first semiconductor medium 700 and the second semiconductor recording medium 800.

  The encryption / decryption processing unit 625 has a function of encrypting and decrypting data. Processing for decrypting the information of the rights information entry encrypted with the media unique key, processing for encrypting the information of the rights information entry not encrypted with the media unique key, and the like are performed.

  Next, the rights information management method according to the present invention will be described with reference to FIGS.

  FIG. 23 to FIG. 25 are flowcharts showing an example of an operation sequence when the information processing apparatus 600 copies the right information stored in the first semiconductor recording medium 700 to the second semiconductor recording medium 800.

  First, a schematic sequence of rights information duplication processing will be described with reference to FIG.

  Note that part or all of the right information entry stored in the first semiconductor recording medium 700 and the right information entry stored in the second semiconductor recording medium 800 are each encrypted and stored in the protection area. In order to gain access, authentication processing by the authentication processing unit 624 and encryption / decryption processing by the encryption / decryption processing unit 625 are always required, but description of this processing is omitted in all subsequent descriptions.

  (S501) First, the duplication target determining unit 621 of the information processing apparatus 600 determines a duplication source right information entry and a duplication destination right information entry based on information from the input unit 630.

  The duplication source right information entry is a right information entry stored in the first semiconductor recording medium 700 and whose right information validity flag is ON (that is, valid right information), and the duplication control information is “duplication”. One item that is not “impossible” is determined.

  As the duplication destination right information entry, one of right information entries stored in the second semiconductor recording medium 800 whose right information valid flag is OFF (that is, invalid right information) is determined.

  FIG. 26 shows an example of the copy source right information entry and the copy destination right information entry determined at this time. In the example of FIG. 26, the p-th right information entry of the right information entry of the first semiconductor recording medium 700 (media unique ID = 0001) is determined as the duplication source right information entry, and the second semiconductor recording medium 800 ( Of the right information entries of media unique ID = 0002), the qth right information entry is determined as the copy destination right information entry. Hereinafter, an example of FIG. 26 will be described.

  Information regarding the determined duplication source right information entry and duplication destination right information entry is notified to the duplication processing execution unit 622.

  (S502) The duplication processing execution unit 622 notifies the information processing unit 623 during duplication of information related to the duplication source right information entry.

  The duplicating information processing unit 623 refers to the duplicating flag in the duplication source right information entry via the first recording medium access unit 611. As a result of the reference, if the duplication flag of the duplication source right information entry is ON, the process proceeds to S503, and if it is OFF, the process proceeds to S504.

  (S503) The in-duplication information processing unit 623 updates the duplication flag in the duplication source right information entry to OFF via the first recording medium access unit 611.

  (S504) The duplication information processing unit 623 clears the duplication target information in the duplication source right information entry. More specifically, an invalid value is set in the media unique ID, right information identifier, and source copy control information included in the copy target information.

  Further, the duplicated flag of the duplication source right information entry is set to OFF.

  Further, all information included in the copy destination right information entry is cleared.

  (S505) The duplication process execution unit 622 executes a duplication main process, which will be described later, from the duplication source right information entry to the duplication destination right information entry, and ends the process.

  24 and 25 are flowcharts showing a detailed sequence example of the replication main process.

  (S601) The during-duplication information processing unit 623 writes the duplication target information of the duplication source right information entry stored in the first semiconductor recording medium 700. The information to be written as the copy target information is information related to the copy destination right information entry determined in S501. Specifically, “OFF” is written in the copy source flag, “0002” is written in the media unique ID, and “q” is written in the right information identifier.

  (S602) The during-duplication information processing unit 623 writes the duplication target information of the duplication destination right information entry stored in the second semiconductor recording medium 800. The information to be written as the copy target information is information relating to the copy source right information entry determined in S501. Specifically, “ON” is set for the copy source flag, “0001” is set for the media unique ID, “p” is set for the right information identifier, and “the copy control information value of the copy source right information entry” is set for the copy source copy control information. Include.

  (S603) The during-duplication information processing unit 623 sets the duplication flag of the duplication source right information entry stored in the first semiconductor recording medium 700 to “ON”.

  (S604) The during-duplication information processing unit 623 sets the duplication flag of the duplication destination right information entry stored in the second semiconductor recording medium 800 to “ON”.

  (S605) The duplication processing execution unit 622 sets the right information valid flag of the duplication source right information entry stored in the first semiconductor recording medium 700 to “OFF”.

  (S606) The duplication processing execution unit 622 uses the content ID, content key, and the like of the duplication source right information entry stored in the first semiconductor recording medium 700 as the duplication destination right information stored in the second semiconductor recording medium 800. Duplicate to entry.

  Further, “0000 (all bits are 0)” indicating “no copy” is written in the copy control information of the copy destination right information entry.

  (S607) The during-duplication information processing unit 623 sets the duplicated flag of the duplication destination right information entry stored in the second semiconductor recording medium 800 to “ON”.

  (S608) The during-duplication information processing unit 623 updates the duplication control information of the duplication source right information entry stored in the first semiconductor recording medium 700. However, if the copy control information of the copy source right information entry is “1111 (all bits are 1)” indicating “unlimited duplication is possible”, the update process is not necessary. If the duplication control information in the duplication source right information entry has a value other than that, it indicates “the number of times of duplication”, and thus the value decremented by 1 is overwritten.

  When the copy control information of the transfer source right information entry is “0001 (can be copied only once)”, “0000 (all bits are 0)” representing “move impossible” is overwritten.

  (S609) The during-duplication information processing unit 623 sets the duplicated flag of the duplication source right information entry stored in the first semiconductor recording medium 700 to “ON”.

  (S610) The duplication processing execution unit 622 sets the right information valid flag of the duplication source right information entry stored in the first semiconductor recording medium 700 to “ON”.

  (S611) The duplication processing execution unit 622 sets the right information valid flag of the duplication destination right information entry stored in the second semiconductor recording medium 800 to “ON”.

  (S612) The during-duplication information processing unit 623 sets the duplication flag of the duplication source right information entry stored in the first semiconductor recording medium 700 to “OFF”.

  (S613) The during-duplication information processing unit 623 sets the duplicated flag of the duplication source right information entry stored in the first semiconductor recording medium 700 to “OFF”.

  (S614) The in-replication information processing unit 623 sets the duplication flag of the duplication destination right information entry stored in the second semiconductor recording medium 800 to “OFF”.

  (S615) The during-duplication information processing unit 623 sets the duplicated flag of the duplication destination right information entry stored in the second semiconductor recording medium 800 to “OFF”.

  (S616) The during-duplication information processing unit 623 erases the duplication target information in the duplication source right information entry stored in the first semiconductor recording medium 700.

  (S617) The during-duplication information processing unit 623 erases the duplication target information in the duplication destination right information entry stored in the second semiconductor recording medium 800.

  FIG. 27 shows a state example of the copy source right information entry and the copy destination right information entry in each step of the copy main process described above.

  Until right after S604, since the right information validity flag of the duplication source right information entry is ON, valid right information exists in the duplication source recording medium. Immediately after S610, since the right information validity flag of the duplication source right information entry is ON, valid right information exists in the duplication source recording medium. At this time, since the copy control information of the copy source right information entry has already been updated in the process of S608, the number of times that the copy can be made is reduced by one. Further, right after S611, the right information valid flag of the duplication source right information entry and the duplication destination right information entry is ON, so that valid right information exists in the duplication source and duplication destination recording media. . In other cases, valid right information does not exist in either the copy destination or the copy source.

  Therefore, as in the case of the conventional duplication process, there is no instant in which the total number of times that duplication can be performed in the duplication source and duplication destination rights information in the course of the duplication process according to the present invention is greater than before the duplication process. For this reason, even if a malicious user intentionally interrupts the copying process, the right information does not increase illegally.

  Further, when there is no valid right information in both the copy destination and the copy source as immediately after S605 to immediately after S609, or the copy source and the copy destination can be copied just after S610. When the total number of times falls to a state where it is smaller than before the duplication process, the lost right information can be restored by executing the restoration process (2) according to the present invention described later.

  FIG. 28 shows an operation sequence for checking whether or not each right information stored in the first semiconductor recording medium 700 or the second semiconductor recording medium 800 attached to the information processing apparatus 600 is being copied. It is a flowchart which shows an example.

  This processing may be performed at the following timing.

  That is, when the first semiconductor recording medium 700 or the second semiconductor recording medium 800 is loaded into the information processing apparatus 600, the first semiconductor recording medium 700 or the second semiconductor recording medium 800 is loaded into the information processing apparatus 600. When the information processing apparatus 600 is turned on in the state of being set, when the user intentionally requests it via the input unit 630, and so on.

  Hereinafter, a case where the user selects the first semiconductor recording medium 700 as a processing target via the input unit 630 will be described as an example.

  (S701) First, the replication target determining unit 621 of the information processing apparatus 600 determines the first semiconductor recording medium 700 as the recording medium to be processed based on the information from the input unit 630.

  The movement target determining unit 621 sets the internal variable i to 1. Information of the internal variable i is notified to the duplication processing execution unit 622 and the duplication information processing unit 623.

  (S702) The in-duplication information processing unit 623 refers to the in-duplication flag of the i-th right information entry of the first semiconductor recording medium 700.

  (S703) If the duplicating flag referenced in S702 is ON, the process proceeds to S704. If it is OFF, the process proceeds to S708.

  (S704) The in-replication information processing unit 623 refers to the replication target information in the i-th right information entry of the first semiconductor recording medium 700, and acquires information (media unique ID or the like) of the replication target recording medium. . Then, through the user notification unit 640, the user is notified that “the i-th right information of the first semiconductor recording medium 700 is moving” and “information on the recording medium to be copied that is necessary for the restoration process”. To be notified.

  (S705) When the user instructs execution of the return process via the input unit 630, the process proceeds to S706. If not instructed, the process proceeds to S708.

  (S706) If a semiconductor recording medium necessary for the return process is loaded in the information processing apparatus 600, the process proceeds to the return process of S707. If not, the process proceeds to S708.

  (S707) Return processing (2) is executed. Details will be described later.

(S708) The movement target determining unit 621 adds 1 to the internal variable i. (S709) When the internal variable i is larger than the total number (N) of right information entries stored in the first semiconductor recording medium 700. The process ends. If N or less, the process returns to S702 and continues.

  FIG. 29 is a flowchart showing an operation sequence example of the return process (2).

  (S801) The during-duplication information processing unit 623 refers to the duplication target information of each of the duplication target right information entries (two of the duplication source right information entry and the duplication destination right information entry) acquired in S704.

  (S802) If each piece of replication target information referenced in S801 satisfies both of the following two conditions, the process proceeds to S803. In other cases, the process ends.

  Condition 1: Of the two pieces of duplication target information, one duplication source flag is OFF and the other duplication source flag is ON.

  Condition 2: The medium unique ID and right information identifier of the information to be copied store the medium unique ID of the recording medium in which the other right information is stored and the right information identifier of the other right information entry.

  (S803) The during-duplication information processing unit 623 refers to the duplication flag of the duplication source right information entry and the duplication destination right information entry. If both are "ON", the process proceeds to S805. Otherwise, the process proceeds to S804.

  (S804) The during-duplication information processing unit 623 sets “OFF” of the duplication flag of the duplication source right information entry and the duplication destination right information entry to “OFF”. Further, the duplication processing execution unit 622 deletes the duplication target information of the duplication source right information entry and duplication transfer destination right information entry, and sets the duplication flag of the duplication source right information entry and duplication move destination right information entry to “OFF”. To complete the process.

  (S805) The in-replication information processing unit 623 refers to the copied flag of the destination right information entry. If it is “ON”, the process proceeds to S807. If it is “OFF”, the process proceeds to S806.

  (S806) Of the replication main processing described with reference to FIGS. 24 and 25, S605 and subsequent steps are performed to complete the replication processing.

  (S807) The during-duplication information processing unit 623 refers to the duplicated flag in the duplication source right information entry. If it is “ON”, the process proceeds to S809. If it is “OFF”, the process proceeds to S808.

  (S808) The duplication processing execution unit 622 updates the duplication source control information of the duplication source right information entry to a value decremented by one from the duplication source duplication control information of the duplication target information of the duplication destination right information entry. However, if the value stored in the replication source replication control information entry is “1111 (all bits are 1)” indicating “unlimited replication is possible”, it is updated to “1111 (all bits are 1)”. To do.

  Further, the in-replication information processing unit 623 sets the duplicated flag of the duplication source right information entry to “ON”.

  (S809) Of the replication main processing described with reference to FIGS. 24 and 25, S610 and subsequent steps are executed to complete the replication processing.

  By performing the return process (2) described above, the replication main process is interrupted between immediately after S605 and immediately after S609, and there is no valid right information at either the replication destination or the replication source. If the copy main process is interrupted immediately after S610, and the total number of times that the copy can be made at the copy destination and the copy source falls into a normal state that occurs more than before the copy process, the lost rights information Can be restored.

  FIG. 30 shows a state example of the copy source right information entry and the copy destination right information entry in each step of the copy main process. By performing the restoration process (2) as necessary, the total number of times that the duplication process of the right information can be duplicated at the duplication destination and the duplication source is reduced compared to before the duplication process even if the duplication process of the right information is interrupted at any timing. The situation will not occur.

  As described above, by using the recording medium, the information processing apparatus, and the rights information management method according to the present invention, it is possible to prevent the rights information from being lost even if the rights information duplication processing is interrupted, and the rights information is illegally received. An increase can also be prevented.

  The present invention is particularly effective in a semiconductor recording medium with a copyright protection function and a host device of the semiconductor recording medium.

  Although the present invention has been described based on the above embodiment, it is needless to say that the present invention is not limited to the above embodiment. Various modifications can be made without departing from the spirit of the present invention. The following cases are also included in the present invention.

  (1) Although the semiconductor recording medium has been described in the present embodiment, the same configuration can be realized as long as it is a readable / writable recording medium having a copyright protection function. Therefore, the present invention is effective even for a recording medium (hard disk, optical disk, magnetic disk, etc.) other than a semiconductor recording medium.

  The recording medium may be a recording medium configured by combining a plurality of recording media. For example, by combining a relatively small-capacity semiconductor recording medium having a copyright protection function and a relatively large-capacity hard disk not having a copyright protection function, one virtual recording medium (copyright Protection function, large capacity).

  (2) In the present embodiment, the FAT file system is used in the search information storage area. However, other file systems such as FAT32 and UDF may be used. Of course, the recording address and the like may be managed.

  (3) The storage method of FIG. 3 in this embodiment is an example.

  Therefore, although it has been described that the content key is encrypted with the media unique key, the present invention is not limited to this. For example, in the case of content distributed via a network, it may be encrypted with a unique key for each distribution service.

  Further, the content may be stored in the protected area 132 or may be stored in another recording medium. Furthermore, it is not necessary to encrypt if security is ensured. The present invention is effective as long as the right information is stored in the recording medium of the present invention.

  (4) The format of the rights information in FIG. 21 in the present embodiment is an example.

  Therefore, the control information and the content key may be managed as separate files when the correspondence with the content is clarified by some method.

  Similarly, the duplicating flag, the duplicated flag, and the duplication target information may be managed as separate files. At this time, the file including the duplication flag or the duplication flag or the duplication target information may be a provisional file that is generated at least immediately before the duplication process and is deleted at least immediately after the duplication process.

  In addition, the rights information in the present embodiment has a one-to-one correspondence with the content, but one piece of rights information may correspond to a plurality of rights information. Conversely, one piece of right information may correspond to a plurality of contents.

  In this embodiment, the duplication flag, the duplication flag, and the duplication target information are described as being managed as a file, but the recording medium has a dedicated register for storing such information. Does not have to be managed as a file.

  (5) In this embodiment, an example in which the copy source recording medium and the copy destination recording medium are different is shown. However, the present invention is effective even when the duplication process is performed in different right information entries in the same recording medium. It is.

  (6) In the present embodiment, an example is described in which the duplicating flag is used as the transition determination information and the duplication target information is used as the transition target information. However, the following application examples are also conceivable.

  That is, this is a case where the replication target information that is the transition target information also serves as the in-transition determination information.

  More specifically, when a valid value is stored as replication target information, it means that the transition determination information is “in transition”, and an invalid value is stored as replication target information. In the case where no value is stored, it means that the transition determination information is “not transitioning”.

  At this time, the replication target information plays two roles: the transition target information and the transition determination information.

  (7) In the present embodiment, it has been described that the medium unique ID, which is a unique value for each recording medium, is stored in advance in the recording medium. However, this is a case where the medium unique ID is not stored. However, the following applications can be considered.

  That is, the information processing apparatus generates arbitrary identification information before the duplication process, and records the identification information on the duplication source recording medium and the duplication destination recording medium. In the duplication processing, the duplication source recording medium or the duplication destination recording medium can be specified by using the identification information as duplication target information.

  The identification information may be a random number, a volume name of a recording medium, or the like.

  The recording medium, the information processing apparatus, and the right information management method according to the present invention store the right information in a recording medium having a copyright protection function, and move the right information between the recording media. It is useful as a means for duplicating, and particularly useful as a means for managing rights information of super-distributed content.

The figure which showed the example of a structure of the semiconductor recording medium 100 in Embodiment 1 of this invention. The figure which showed the example of a structure of the information search storage area and data area in Embodiment 1 The figure which showed an example of the storage method to the semiconductor recording medium 100 of the content and rights information in Embodiment 1 of this invention The figure which showed the data structure example of the right information entry in the same Embodiment 1 The figure which showed the structural example of the information processing apparatus 200 in the same Embodiment 1. The flowchart which showed an example of the schematic sequence of the movement process of the right information in the same Embodiment 1 The flowchart which showed an example of the sequence of the movement main process in the Embodiment 1 The figure which showed the example of the movement origin right information entry in S101 in the same Embodiment 1, and a movement destination right information entry The figure which showed the example of the movement origin right information entry in S202 in the same Embodiment 1, and a movement destination right information entry The figure which showed the example of the movement origin right information entry in S205 in the same Embodiment 1, and a movement destination right information entry The figure which showed the example of the movement origin rights information entry in S206 in the same Embodiment 1, and a movement destination rights information entry The figure which showed the example of the movement origin right information entry in S207 in the same Embodiment 1, and a movement destination right information entry The figure which showed the example of the movement origin right information entry in S208 in the same Embodiment 1, and a movement destination right information entry The figure which showed the example of the movement origin rights information entry and movement destination rights information entry in S209 in Embodiment 1 The figure which showed the example of the movement origin rights information entry in S212 in the same Embodiment 1, and a movement destination rights information entry The figure which showed the example of the state of the movement origin rights information entry and movement destination rights information entry in each step of the movement main process in Embodiment 1 The flowchart which showed an example of the operation | movement sequence in the case of checking whether each right information entry in the same Embodiment 1 is in a movement process The figure which showed the example of a display in S304 of the user notification part 240 in the same Embodiment 1. FIG. The flowchart which showed an example of the operation | movement sequence of the return process (1) in the same Embodiment 1. The figure which showed the example of the state of the movement origin right information entry and movement destination right information entry in each step of the movement main process in Embodiment 1 including the result of return process (1) The figure which showed the example of a data structure of the right information entry in Embodiment 2 of this invention The figure which showed the structural example of the information processing apparatus 600 in the same Embodiment 2. Flowchart showing an example of a schematic sequence of right information duplication processing in the second embodiment Flowchart showing an example of the sequence of the replication main process in the second embodiment (first half) Flowchart showing an example of the sequence of the replication main process in the second embodiment (second half) The figure which showed the example of the duplication origin rights information entry and duplication destination rights information entry in S501 in the Embodiment 2 The figure which showed the example of the state of the duplication origin right information entry and duplication destination right information entry in each step of the duplication main process in Embodiment 2 The flowchart which showed an example of the operation | movement sequence in the case of checking whether each right information entry in the same Embodiment 2 is in the process of duplication The flowchart which showed an example of the operation | movement sequence of the return process (2) in the same Embodiment 2. The figure which showed the example of the state of the duplication origin right information entry and duplication destination right information entry in each step of the duplication main process in Embodiment 2 including the result of the return process (2)

Explanation of symbols

100, 300, 400, 700, 800 Semiconductor recording medium 110 Host interface unit 120 Control unit 130 Recording area 131 Special area 132 Protected area 133 Normal area 200, 600 Information processing apparatus 211, 611 First recording medium access section 212, 612 Second recording medium access unit 220, 620 Data processing unit 221 Movement target determination unit 222 Movement processing execution unit 223 Moving information processing unit 224, 624 Authentication processing unit 225, 625 Encryption / decryption processing unit 230, 630 Input unit 240, 640 User notification unit 621 Replication target determination unit 622 Replication processing execution unit 623 Information processing unit during replication

Claims (22)

A recording medium having identification information that is an identifier of a recording medium, and storing at least one right information that includes one or both of control information that is information on a content control method and a content key that encrypts the content The transition information is information indicating whether or not the right information is in a transition state with another recording medium, and the transition target is information on another recording medium that is a transition target. And a readable / writable recording medium characterized by storing information. The recording medium according to claim 1, wherein the transition is moving. The recording medium according to claim 1, wherein the transition is being replicated. The recording medium according to claim 1, wherein validity determination information that is information indicating whether each right information is valid is stored. The recording medium according to claim 1, wherein the identification information is a medium unique ID that is a unique value for each recording medium. The recording medium according to claim 1, wherein the medium unique ID of another recording medium that is a transition target is stored as the transition target information. 2. The recording medium according to claim 1, wherein a right information identifier, which is an identifier of right information to be transitioned in the other recording medium, is stored as the transition target information. 2. The recording medium according to claim 1, wherein a part or all of the transition target information is encrypted and stored. 2. The recording medium according to claim 1, wherein a part or all of the in-transition determination information is encrypted and stored. The recording medium according to claim 1, wherein the in-transition determination information is stored in an area that can be accessed only when the validity of each other can be authenticated between the recording medium and the host device. A recording medium characterized by the above. The recording medium according to claim 1, wherein the in-transition determination information is stored in the same file as the corresponding right information. The recording medium according to claim 1, wherein the transition target information also serves as the in-transition determination information, and the determination in transition is performed when a valid value is stored as the value of the transition target information. The information means that the transition is in progress, and when the invalid value is stored as the value of the transition target information or the value is not stored, the transition determination information means that the transition is not in progress recoding media. The recording medium according to claim 1, wherein the recording medium is configured by combining a plurality of recording media. The recording medium according to claim 3, wherein the right information stores transition completion determination information that is information indicating whether or not the transition has been completed with another recording medium. recoding media. The recording medium according to claim 3, wherein the rights information includes copy control information that is control information related to content duplication, and the transition target information before the transition process of the transition source recording medium A recording medium storing duplication control information. An information processing apparatus for moving or copying right information stored in a first recording medium to a second recording medium, wherein the first recording medium access unit is for reading and writing data on the first recording medium A second recording medium access unit for reading and writing data of the second recording medium, and transition object determination for determining right information to be moved or copied in the first and second recording media A transition processing execution unit that moves or duplicates the right information determined by the transition target determination unit, and the in-transition determination information corresponding to the right information when the transition processing execution unit performs the movement or duplication And a transition information processing unit for referring to and updating the transition target information. 17. The information processing apparatus according to claim 16, for notifying a user that the in-transition determination information corresponding to the right information stored in the attached recording medium indicates that the transition is in progress. An information processing apparatus comprising a user notification unit. A right information management method for moving or copying right information stored in a first recording medium to a second recording medium, wherein the right information stored in the first recording medium is in transition A step of setting determination information during the transition, a step of setting during-transition determination information corresponding to the second right information stored in the second recording medium, and a step of storing the determination information in the first recording medium The step of copying the first right information to the second right information of the second recording medium, and the in-transition determination information corresponding to the first right information stored in the first recording medium during non-transition A right information management method comprising: a step of setting; and a step of setting in-transition determination information corresponding to the second right information stored in the second recording medium to a non-transition state. . A right information management method for moving or copying right information stored in a first recording medium to a second recording medium, and storing information on the second recording medium as transition target information in the first recording medium Storing information on the first recording medium as transition target information in the second recording medium, erasing the transition target information stored in the first recording medium, and the second recording And a step of erasing the transition target information stored in the medium. A method for confirming whether right information stored in a recording medium is transiting to another recording medium, comprising a step of referring to at least in-transition determination information stored in the recording medium. Management method of rights information. 21. The right information management method according to claim 20, wherein the step of referring to the in-transition determination information stored in the recording medium is executed immediately after the recording medium is mounted on an information processing apparatus. Management method of rights information. A right information management method for copying right information stored in a first recording medium to a second recording medium, the copy corresponding to at least the first right information stored in the first recording medium A right information management method comprising a step of saving control information in the second recording medium.

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