WO2011074358A1 - 情報処理装置、情報処理システム、および情報処理方法、並びにプログラム - Google Patents

情報処理装置、情報処理システム、および情報処理方法、並びにプログラム Download PDF

Info

Publication number
WO2011074358A1
WO2011074358A1 PCT/JP2010/070103 JP2010070103W WO2011074358A1 WO 2011074358 A1 WO2011074358 A1 WO 2011074358A1 JP 2010070103 W JP2010070103 W JP 2010070103W WO 2011074358 A1 WO2011074358 A1 WO 2011074358A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
data
content
copy
processing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2010/070103
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
健二朗 上田
山本　和夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to EP10837387A priority Critical patent/EP2515302A1/en
Priority to US13/515,188 priority patent/US8788844B2/en
Priority to IN5118DEN2012 priority patent/IN2012DN05118A/en
Priority to BR112012014088A priority patent/BR112012014088A2/pt
Priority to CN2010800562738A priority patent/CN102782759A/zh
Publication of WO2011074358A1 publication Critical patent/WO2011074358A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327—Table of contents
    • G11B27/329—Table of contents on a disc [VTOC]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00166—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised contents recorded on or reproduced from a record carrier, e.g. music or software
    • G11B20/00173—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised contents recorded on or reproduced from a record carrier, e.g. music or software wherein the origin of the content is checked, e.g. determining whether the content has originally been retrieved from a legal disc copy or another trusted source
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
    • G11B20/00362—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being obtained from a media key block [MKB]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/0042—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the copy protection scheme being related to a specific access protection standard
    • G11B20/00427—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the copy protection scheme being related to a specific access protection standard advanced access content system [AACS]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00855—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a step of exchanging information with a remote server
    • G11B20/00862—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a step of exchanging information with a remote server wherein the remote server can grant the permission to use a content
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/322—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is digitally coded
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2541—Blu-ray discs; Blue laser DVR discs

Definitions

  • the present invention relates to an information processing apparatus, an information processing system, an information processing method, and a program. More specifically, the present invention relates to an information processing apparatus, an information processing system, an information processing method, and a program for copying data recorded on a medium such as a disc (information recording medium) under predetermined management.
  • DVD Digital Versatile Disc
  • BD Blu-ray Disc (registered trademark)
  • information recording media media
  • Many contents such as music data and image data recorded on these information recording media have copyrights and distribution rights by their creators and distributors. Therefore, even a user who has purchased a disc has certain restrictions on the use of disc recorded content. For example, it is not allowed to copy the disc recording content to other media such as discs without limitation.
  • a copy permission processing configuration is known on condition that copy permission information is received from a management server. Specifically, processing is performed in the following sequence.
  • a user attaches a medium such as a content storage disk to a user apparatus such as a PC or a recording / reproducing apparatus, and the user apparatus connects to the management server via a network.
  • the user device transmits predetermined information such as a disk identifier (ID) to the server.
  • the server After confirming the validity of the received information, the server transmits copy permission information to the user device.
  • the user device can start the copy process on condition that the copy permission information is received from the server.
  • MC managed copy
  • AACS Advanced Access Content System
  • Many disc recording contents such as BDs according to the AACS standard are recorded as encrypted contents.
  • a typical encryption configuration of the AACS standard there is a configuration in which content is divided into units and a different encryption key is applied to each unit.
  • a unit which is a content division unit is called a CPS unit
  • an encryption key applied to encryption processing and decryption processing of each CPS unit is called a CPS unit key, a unit key, or a title key.
  • Non-Patent Document 1 http://www.aacsla.com/home
  • Non-Patent Document 2 http://www.aacsla.com/specifications
  • the encrypted content to be copied is once decrypted, and then the copy destination media is supported.
  • processing such as re-encryption and recording in accordance with the management system standard is performed. That is, it is recorded as the usage control content even in the media at the coffee destination.
  • the copy source content management system (referred to as the first management system) and the copy destination content management system (referred to as the second management system) are different, the copy source encrypted content is once decrypted, It is necessary to perform recording according to the copy destination content management system (second management system), for example, re-encryption using another encryption key.
  • the recorded content of the first medium is the above-described unit-unit encrypted content
  • the constituent unit of the content is identified, and the unit key corresponding to each identified unit is sequentially obtained, It is necessary to perform a decoding process.
  • the user device When performing copy processing under copy management on condition that the above-mentioned copy permission information is received from the server, the user device must perform decryption by applying a unit key in units, but the user device identifies the unit. There is no effective provision for obtaining information to do so. Therefore, there is a problem that the copy processing of the encrypted content in units cannot be executed smoothly.
  • reproduction path designation content that sets a reproduction path corresponding to the information processing apparatus and executes reproduction according to the reproduction path.
  • content code content code
  • code-applicable content The reproduction path designation content is described in Patent Document 2 (Japanese Patent Laid-Open No. 2008-84445), and the content code application content is described in Patent Document 3 (Japanese Patent No. 4140624).
  • the present invention has been made in view of such a situation.
  • An information processing apparatus and an information processing apparatus that enable quick copy processing of encrypted content in units and realize copy processing according to various content types. It is an object to provide a system, an information processing method, and a program.
  • the first aspect of the present invention is: A data processing unit for generating data for copying data recorded on the information recording medium;
  • the data processing unit Performing data type identification processing of the recording data of the information recording medium, Determining whether the recorded data is content code application content including code information for executing reproduction processing verification processing or reproduction data conversion processing upon data reproduction; If it is determined that the content code is applied content, the reproduction data generation process is executed after the start of the reproduction process, When it is determined that the recorded data is content code non-applied content that does not include the code information, the information processing apparatus executes the copy data generation process without executing the reproduction process.
  • the data processing unit determines that the recorded data is content code application content, a reproduction process verification process using the code information, or reproduction data After the conversion process is executed and the data reproduction process according to the prescribed sequence is started, the copy data generation process is executed.
  • the data processing unit starts copying the data for copying on the condition that a copy execution instruction is input within a data reproduction period after starting the data reproduction processing. Start the generation process.
  • the data processing unit verifies a directory structure of recorded data on the information recording medium, and determines whether the recorded data is content code application content. The process for determining is executed.
  • the verification of the directory configuration is a process for confirming whether a specific directory exists or whether a file exists in the specific directory.
  • the data processing unit is configured to provide individual data in units of units in which the recording data of the information recording medium is divided data corresponding to individual titles in the data type identification process.
  • the data is encrypted by applying a unit key
  • the title information recorded in the copy processing information acquired from the information recording medium or the management server is acquired, and the unit key corresponding to the acquired title information
  • the unit-by-unit decryption process using the acquired unit key is executed to generate the copy data.
  • the data processing unit reproduces the recorded data on the information recording medium according to a reproduction path selected according to the information processing apparatus in the data type identification process. If it is determined whether the recorded data is a reproduction path designation content, a segment key to be applied to decrypting a part of the configuration data of the reproduction path is generated, The copy data is generated by decryption processing using the generated segment key and the unit key.
  • the data processing unit reproduces the sequence key stored in the memory of the information processing apparatus by a process using a sequence key block reproduced from the information recording medium.
  • Acquire playlist identification information that allows playback according to a path, apply the acquired identification information, read a playlist file corresponding to the playback path from the information recording medium, and apply the playlist The data is read according to the playback path.
  • the data processing unit performs processing on a sequence key block reproduced from the information recording medium using a sequence key stored in a memory of the information processing apparatus.
  • the segment key file including the encryption key obtained by acquiring the classification number, acquiring the identification information of the recording playlist using the classification number, and encrypting the key for decrypting the data corresponding to the recording / reproducing path To obtain a segment key corresponding to a specific variation in the segment.
  • the second aspect of the present invention provides An information processing apparatus for generating data for copying data recorded on an information recording medium; A management server that provides copy permission information for the information processing apparatus; An information processing system having The information recording medium is a configuration in which data encrypted by applying an individual unit key in units of units, which is divided data corresponding to individual titles, is recorded.
  • the management server In response to a request from the information processing device, providing the information processing device with copy processing information in which the identification information of the title is recorded,
  • the information processing apparatus includes: Performing data type identification processing of the recording data of the information recording medium, When it is determined that the recorded data is data that is encrypted by applying an individual unit key in unit units that are segment data corresponding to individual titles, Obtain title information recorded in the copy processing information obtained from the management server, In the information processing system, the unit key corresponding to the acquired title information is acquired, and the copy data is generated by executing the decryption process for each unit by the acquired unit key.
  • the third aspect of the present invention provides In an information processing device, an information processing method for generating data for copying data recorded on an information recording medium,
  • the data processing unit of the information processing apparatus Performing data type identification processing of the recording data of the information recording medium, Determining whether the recorded data is content code application content including code information for executing reproduction processing verification processing or reproduction data conversion processing upon data reproduction; If it is determined that the content code is applied content, the reproduction data generation process is executed after the start of the reproduction process, When it is determined that the recorded data is content code non-applied content that does not include the code information, the information processing method performs the copy data generation process without executing the reproduction process.
  • the fourth aspect of the present invention provides In an information processing device, a program for generating data for copying data recorded on an information recording medium, In the data processing unit of the information processing apparatus, Causing the data type identification process of the recording data of the information recording medium to be executed, Determining whether the recorded data is content code application content including code information for executing reproduction processing verification processing or reproduction data conversion processing upon data reproduction; and If it is determined that the content code application content, the step of executing the copy data generation process after the start of the reproduction process; If it is determined that the recorded data is content code non-applied content that does not include the code information, a step of executing the copy data generation process without executing a reproduction process; It is in the program that executes
  • the program of the present invention is a program that can be provided by, for example, a storage medium or a communication medium that is provided in a computer-readable format to an information processing apparatus or a computer system that can execute various program codes.
  • a program in a computer-readable format, processing corresponding to the program is realized on the information processing apparatus or the computer system.
  • 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.
  • the type of data recorded on the copy source recording medium is identified in the information processing apparatus that performs the process of copying the recording data of the information recording medium to another medium.
  • the content to be copied is a reproduction path designation content that sets a reproduction path corresponding to the information processing apparatus and executes reproduction according to the reproduction path, or verifies a reproduction sequence executed in the reproduction apparatus,
  • a type such as a content code application content that verifies whether the reproduction process is executed according to a correct reproduction procedure is determined, and a copy process is executed by applying an optimum sequence according to the determination result.
  • FIG. 25 is a diagram for describing a configuration example of an information processing device.
  • Encrypted content according to the AACS (Advanced Access Content System) standard which is a standard for content copyright protection technology, is divided into units as described above, and is recorded as encrypted data using different encryption keys for each unit. Is done.
  • AACS Advanced Access Content System
  • the unit-by-unit encryption configuration it is possible to perform unit-based usage control, and strict and diverse content usage control is realized.
  • a unit that is a content division unit is called a content management unit or a CPS unit
  • an encryption key corresponding to each CPS unit is called a CPS unit key, a unit key, or a title key.
  • An example of the correspondence between the unit classification of content recorded on the disc and the encryption key (unit key) is shown in FIG.
  • FIG. 1 is an example of a unit key management table showing a correspondence relationship between a unit (CPS unit) constituting a content recorded on a certain medium, for example, one disc, and a CPS unit key which is an encryption key.
  • This unit key management table is recorded on the medium (BD etc.) together with the encrypted content.
  • CPS units that are content configuration data are divided into CPS units 1 to n.
  • Each CPS unit 1 to n is associated with a CPS unit key which is a unique encryption key.
  • CPS unit 1 For example, when playing back CPS unit 1 (CPS1), decryption is performed using CPS unit key 1 (Ku1).
  • CPS unit 2 When reproducing the CPS unit 2 (CPS2), it is necessary to perform decryption by applying the CPS unit key 2 (Ku2).
  • title As an index corresponding to each CPS unit and CPS unit key, for example, “title” is used. “Title” is an index set corresponding to each CPS unit, and the CPS unit and the CPS unit key can be specified by specifying the title.
  • a first medium 110 such as a ROM disk on which content such as a movie has been recorded;
  • Information as a user device that performs processing of reading data such as content from the first medium 110 and copying it to the second medium 150 (copy destination medium) configured by an HDD, an R / RE disc, or the like, which is a data recordable medium Processing device 120,
  • a second medium 150 that is a medium to which content is copied and is configured by an HDD, an R, or RE type disk;
  • Management server (MC server) 140 that executes content copy processing permission information and management data provision processing, These are shown.
  • the information processing apparatus 120 is configured by, for example, a PC, a recording / reproducing apparatus, and the like.
  • the process of recording data is performed.
  • the second medium 150 is a medium on which data can be written.
  • the second medium 150 is, for example, a hard disk (HDD), an R-type or RE-type Blu-ray Disc (registered trademark), a DVD disk, or the like.
  • encrypted content 113 which is usage control content is recorded as shown in the figure.
  • the encrypted content 113 is, for example, an AV (Audio Visual) stream of moving image content such as HD (High Definition) movie content which is high-definition moving image data, or music data, a game program, an image file, audio data, text data, or the like.
  • the encrypted content 113 is data that is encrypted by applying individual unit keys in units of data that are division data corresponding to individual titles.
  • the first medium 110 includes management data (AACS Data) 112 configured by key information, usage control information, and the like applied to decrypting the encrypted content.
  • a copy control management file (MCMF: Managed Copy Manifest File) 111 to be used for the file is stored.
  • the encrypted content 113 has a usage management configuration in units of content management units (CPS units), and applies different unit keys (CPS unit keys) in units of CPS units.
  • the encrypted content is encrypted. That is, in order to realize different usage control for each unit of division data, encryption is performed with a different key (called a CPS unit key, unit key, or title key) for each unit.
  • the management data 112 shown as the recording information of the first medium 110 shown in FIG. 2 is management data defined by AACS (Advanced Access Content System), which is a standard management system related to content copyright protection technology, for example, and encrypted content 113.
  • AACS Advanced Access Content System
  • CPS unit key file storing a key (unit key) to be used for decryption, usage permission information, content certificate (CC: Content Certificate) indicating the validity of the content, and a media key for obtaining the CPS unit key Data including an encryption key block (MKB (Media Key Block)) and the like stored therein.
  • MKB Media Key Block
  • MKB Media Key Block
  • the MKB is an encryption key block generated based on a tree-structured key distribution method known as one aspect of the broadcast encryption method.
  • the MKB can acquire the media key [Km], which is a key necessary for decrypting the content, only by processing (decryption) based on the device key [Kd] stored in the information processing apparatus of the user having a valid license.
  • This is a key information block.
  • This is an application of an information distribution method according to a so-called hierarchical tree structure, and only when the user device (information processing apparatus) has a valid license, the media key [Km] can be acquired and invalidated. In the revoked user device, the media key [Km] cannot be acquired.
  • a device key [Kd] is stored in the memory of the information processing apparatus 120 shown in FIG.
  • a copy control management file (MCMF: Managed Copy Manifest File) 111 shown as record information of the first medium 110 in FIG. 2 is a file applied when executing the copy process of the content 113 recorded on the first medium 110.
  • XML description data including the following information.
  • C Copy processing information (deal manifest): Information related to data that allows copy processing, and includes, for example, information related to the name of a file to be copied.
  • first medium 110 which is a ROM disk
  • second medium 150 configured by a hard disk, R / RE disk, or the like.
  • the information processing apparatus 120 applies server information (such as a URI) recorded in the copy control management file (MCMF) 111 recorded in the first medium 110 in step S11 to allow copying to the management server 140.
  • server information such as a URI
  • MCMF copy control management file
  • a list request (Offer Request) is transmitted.
  • a content ID corresponding to the content to be copied is transmitted to the management server 140.
  • step S12 the management server 140 performs a verification process such as the validity of the received information such as the content ID received from the information processing apparatus 120, and if it is confirmed that there is no problem, the copy permission list (Offer List). 121 is generated and transmitted to the information processing apparatus 120.
  • the list includes information such as a list of files that are allowed to be copied.
  • the information processing apparatus 120 displays the copy allowance list (Offer List) 121 received from the management server 140 on the display.
  • the information processing apparatus 120 executes a settlement process associated with the copy process with the management server 140. Specifically, a transfer process of the settlement data 131 is performed between the information processing apparatus 120 and the management server 140.
  • the management server 140 permits the copy process in step S ⁇ b> 14
  • the copy permission information 122 is transmitted to the information processing apparatus 120.
  • the information processing apparatus 120 proceeds to the content copy process on condition that the copy permission information 122 is received from the management server 140.
  • step S15 the management data 112 is acquired from the first medium 110, the unit key included in the management data 112 is acquired, and the unit key corresponding to the data to be copied is selected.
  • step S16 the encrypted content 113 is read from the first medium 110, the data to be copied is selected and decrypted, and the second configured by the HDD or R / RE disc as the copy destination. Data copy to the medium 150 is executed.
  • the copy process in step S16 includes the following processes. (1) Reading encrypted content from the first medium 110 (copy source medium), (2) Decryption processing of encrypted content according to the first management system corresponding to the first medium 110 (copy source medium), (3) Content encryption processing according to the second management system compatible with the second medium 150 (copy destination medium); (4) Recording process of encrypted content to the second medium 150 (copy destination medium); It is necessary to perform processing in such a sequence.
  • the decryption process of the encrypted content according to the first management system (2) is performed as a decryption process for each CPS unit to which the CPS unit key is applied when the first management system is a system complying with the AACS standard. It will be.
  • the second management system corresponding to the copy destination medium (second medium 150) may be AACS, or a management system that supports various regulations such as CPRM, MagicGate, and VCPS.
  • the information processing apparatus 120 performs the copy process, it is necessary to specify a unit constituting the data to be copied, obtain a unit key corresponding to the unit, and perform a decryption process for each unit.
  • the information processing apparatus 120 obtains information for specifying a unit to be copied, it is possible to obtain a unit key using the unit specifying information. There is no effective means. Therefore, it is difficult to quickly copy the content encrypted in units of content under the content management system on condition that the copy permission information is received.
  • AACS which manages content copyright, provides copy processing information (dealManifest) from the management server to the user device when executing managed copy (MC) that specifies content copy processing under server management. It has been proposed to efficiently perform copy processing using processing information (dealManifest).
  • FIG. 3 shows a basic configuration example of copy processing information (deal manifest) proposed by AACS.
  • This copy processing information (dealManifest) is included in the copy permission list 121 provided to the information processing apparatus 120 by the management server 140 shown in FIG.
  • the data is also included in the copy control management file (MCMF) 111 stored in the first medium 110.
  • MCMF copy control management file
  • the copy processing information is XML description data composed of the following two pieces of information.
  • First information 171 [MCUALL] for executing a copy process with a file in the entire directory as a copy target
  • Second information 172 [MCUPIAL] for executing a copy process with an individual file set in the directory as a copy target
  • the information processing apparatus 120 presents information related to the content to be copied on the display based on the XML description data shown in FIG. The user can select content to be copied based on the presentation information.
  • the first information 171 [MCALL] is information used to collectively copy all files under the directory (BDMV directory) corresponding to the content recorded on the BD, and records the directory name [BDMV]. .
  • the information processing apparatus 120 that performs the copy process selects a directory corresponding to the directory name [BDMV] from various data recorded on the first medium 110 and performs a batch copy of the data under the directory. It is information set so that it can be.
  • the second information 172 [MCUPARTIAL] is information for selecting and copying individual files set under the directory [BDMV], and is set under the directory [BDMV]. File name information is recorded.
  • a directory corresponding to BD recording data has the configuration shown in FIG. As shown in FIG. 4, the directory is divided into a management information setting unit 181 (AACS directory) and a data unit 182 (BDMV directory).
  • the management information setting unit 181 (AACS directory) stores a CPS unit key file, a usage control information file, and the like.
  • the index file stores title information as index information to be applied to playback processing. This title is the same as the title registered in the unit key management table described above with reference to FIG. 1, and is data associated with the CPS unit.
  • the playlist file is a file that defines the playback order of content in accordance with the program information of the playback program specified by the title, and has playback position information and teacher information for clip information.
  • the clip information file is a file specified by the playlist file, and has reproduction position information of the clip AV stream file and the like.
  • the clip AV stream file is a file storing AV stream data to be reproduced.
  • the JAR file is a file that stores JAVA (registered trademark) programs, commands, and the like.
  • the sequence in which the information processing apparatus reproduces the content recorded on the information recording medium is as follows. First, a specific title is specified from the index file by the playback application. A playback program associated with the specified title is selected. A playlist that defines the playback order of the contents is selected according to the program information of the selected playback program. The AV stream or the command as the actual content data is read out by the clip information defined in the selected playlist, and the AV stream is reproduced and the command is executed.
  • the unit and unit key described above with reference to FIG. 1 can be discriminated according to the selected title, and the unit key corresponding to the unit to be reproduced is obtained to obtain the unit unit.
  • the decoding process is performed.
  • the copy target data is identified with reference to the copy process information (deal manifest) shown in FIG. 3 received from the server.
  • the copy processing information (deal manifest) shown in (1) the file name is recorded, but the information for determining the CPS unit is not included. Therefore, the information processing apparatus 120 cannot determine the unit of the copy target data even with reference to the copy processing information (deal manifest) shown in FIG.
  • FIG. 5 shows a configuration example of copy processing information (deal manifest) proposed in the present invention.
  • This copy processing information (deal manifest) Information stored in the copy permission list 121 provided to the information processing apparatus 120 from the management server 140 shown in FIG.
  • the setting is to be included as at least one of the above-described stored information, and is configured to be usable in the information processing apparatus 120 that performs copy processing. That is, the information processing device 120 is set as information that can be referred to when the content of the first medium 110 is copied to the second medium 150.
  • the copy processing information (deal manifest) shown in FIG. 5 is XML description data, similar to the data of FIG. 3 described above, and includes the following two pieces of information.
  • First information 201 [MCUALL] for executing a copy process with a file in the entire directory as a copy target
  • Second information 202 for executing a copy process with an individual file set in the directory as a copy target
  • the copy processing information (deal manifest) proposed in the present invention includes all the information described with reference to FIG. 3, and further includes title information 203 shown in FIG.
  • the title information 203 is title identification information set as index data corresponding to the unit described above with reference to FIG.
  • the title information may be ID information for identifying an individual title or the title itself. That is, any information can be used as long as the information processing apparatus that executes the copy process can acquire the title corresponding to the unit to be copied from the title information 203.
  • the sequence of the copy process using the copy process information (deal manifest) shown in FIG. 5 is as follows.
  • the information processing apparatus 120 presents display information based on the XML description data shown in FIG. 5 on the display. Since the copy processing information (deal manifest) shown in FIG. 5 includes title information, the information displayed on the display is display information including the title. As a result, the user can select the copy target content specifying the title included in the display information.
  • the title is an index of the CPS unit, and is set in association with the CPS unit and the CPS unit key. Therefore, the information processing apparatus 120 can specify the CPS unit and the CPS unit key according to the designated title.
  • the information processing apparatus that executes the copy processing acquires, for example, title information specified by the user from the copy processing information (deal manifest) illustrated in FIG. 5 and uses the unit key management table illustrated in FIG. Based on this, it is possible to identify the unit key corresponding to the copy target unit and obtain the unit key.
  • deal manifest copy processing information
  • the CPS unit key itself is stored in the CPS unit key file in the management data 112 shown in FIG.
  • the unit key identifiers (Ku1 to Kun) recorded in the unit key management table shown in FIG. 1 are used, and based on the unit key identifiers (Ku1 to Kun).
  • the unit key corresponding to the title is acquired from the CPS unit key file.
  • the information processing apparatus 120 can execute the recording process for the copy destination medium by applying the acquired CPS unit key to perform the decoding process of the unit to be copied.
  • the information processing apparatus can acquire the unit key corresponding to the title, execute the decryption process in units of units, and perform the copy process quickly.
  • a copy processing sequence using copy processing information (deal manifest) including title information will be described with reference to the flowchart shown in FIG. 6 is executed in the information processing apparatus 120 shown in FIG.
  • processing is performed by executing a program (copy processing (MC: Managed Copy) program) stored in advance in a memory in the information processing device 120.
  • MC Copy processing
  • step S101 a copy processing (MC) program is selected from the menu displayed on the display unit of the information processing apparatus 120 and activated.
  • step S102 copy permission list request processing (Offer Request) is executed. This process corresponds to the process of step S11 described with reference to FIG. 2 and is performed as a copy permission list request (Offer Request) transmission process to the management server 140.
  • step S103 the copy permission list (Offer list) received from the management server 140 is displayed on the display unit of the information processing apparatus 120.
  • This list is display information generated based on copy processing information (dealManifest) as XML description data described with reference to FIG.
  • the information processing apparatus 120 detects a disk installation, it sends a copy permission list request (Offer Request) to the management server 140, receives the copy permission list from the management server 140 in advance, and stores it in the memory in the information processing apparatus. It is good also as a structure.
  • the copy permission list is already stored in the memory in the information processing apparatus. Therefore, communication with the management server 140 is omitted in the processes in steps S102 to S103, and the memory in the information processing apparatus 120 is omitted. Thus, a process of reading and displaying the copy permission list from is performed.
  • step S104 processing (Offer) is selected. Specifically, the copy target data is specified. This process is performed, for example, as a selection information input process by the user via the input unit. The user can specify a title included in display information generated based on the copy processing information (deal manifest) described with reference to FIG.
  • step S105 settlement processing is executed according to a predetermined sequence.
  • This process corresponds to a process using the settlement data 131 shown in FIG.
  • step S105 When the settlement processing in step S105 is completed, the process proceeds to step S106, and the copy permission information (Permission) is received from the management server 140.
  • This is a reception process of the copy permission information 122 shown in FIG.
  • the information processing apparatus 120 executes a copy process in step S107.
  • a unit-unit decryption process is executed as follows.
  • the information processing apparatus 120 selects the CPS unit key based on the title information (title_id) specified from the copy processing information (deal manifest) shown in FIG. 5 included in the copy allowance list (Offer list).
  • the selected CPS unit key is a key applied to the encryption process and the decryption process corresponding to the CPS unit that is the data to be copied, and the unit-unit decryption process is executed using this unit key.
  • unit identification is performed according to the title. For example, a file belonging to the unit is included in each file name included in the copy processing information (deal manifest) shown in FIG. Stream name [aaa. m2ts], Clip information (Clip Info) name [bbb. clpi], Playlist (PlayList) name [ccc. . mpls], With reference to these file names, file acquisition from the first medium is executed, and copy processing is performed.
  • deal manifest copy processing information shown in FIG. Stream name [aaa. m2ts]
  • Clip information Clip Info
  • Playlist Playlist
  • step S107 In the copy process in step S107, as described above, (1) Reading encrypted content from the first medium 110 (copy source medium), (2) Decryption processing of encrypted content according to the first management system corresponding to the first medium 110 (copy source medium), (3) Content encryption processing according to the second management system compatible with the second medium 150 (copy destination medium); (4) Recording process of encrypted content to the second medium 150 (copy destination medium); Processing is executed according to such a sequence.
  • the information processing apparatus 120 obtains title information corresponding to the copy target unit from the copy processing information (deal manifest) by using the copy processing information (deal manifest) including the title information 103. It becomes possible to do. As a result, the information processing apparatus 120 can acquire the unit key corresponding to the title, execute the decryption process in units, and perform the copy process quickly.
  • the playback path designation content will be described with reference to FIG.
  • the content is encrypted by the CPS unit key in units as described above.
  • the content described below is divided into a segment part and a non-segment part, the non-segment part is encrypted data using a CPS unit key, and the segment part is a plurality of different variations. Is a content set to have a configuration encrypted with a different segment key for each variation.
  • Variation data is recognized as the same content, for example, by human visual and auditory sense, but video data that is embedded in different audio watermarks or video watermarks, or slightly different video data between variation data of the same segment, or In the case where a copy of content flows out, such as when audio data is embedded, it is assumed that the data can identify which variation data in the segment has been reproduced.
  • the non-segment portion performs decryption processing using the CPS unit key
  • the segment portion performs decryption processing using the segment key (Kseg) that can be acquired from the segment key file to perform content reproduction.
  • the segment key file is a file in which data obtained by encrypting the segment key for the variation data (encrypted segment key) in a plurality of segment parts is recorded for each classification number.
  • the classification number is a number corresponding to a playback device for selecting a playlist acquired by processing the sequence key block with a sequence key that is a key unique to the playback device.
  • the encrypted segment key is recorded for each classification number as described above, and is recorded separately for each play item. Therefore, if the classification number and the corresponding play item number are known, the segment key corresponding to the variation data is specified.
  • An information processing apparatus that executes content playback processing needs to acquire a CPS unit key corresponding to a non-segment part and a segment key (Kseg) corresponding to a segment part.
  • An application configuration of the segment key and the sequence key will be described with reference to FIG.
  • FIG. 7A shows the structure of the content stored in the medium (information recording medium). Content is reproduced along a time axis t shown from left to right. Content is stored in n playlists X1 to Xn respectively selected from the plurality (n) of sequence key blocks (SKB) stored in the medium (information recording medium) according to the respective classification numbers X1 to Xn. It is largely divided into corresponding n playback sections.
  • the number of playback sections: n 6, and six playlists X1 to X6 respectively selected from the six sequence key blocks (SKB) according to the respective classification numbers X1 to X6.
  • SKB sequence key blocks
  • the identification information X1 to X6 of the classification number and the identification information X1 to X6 of the playlist are shown as the same identifier X1 to X6, but this is an example for facilitating understanding, and the classification number
  • the identification information X1 to X6 of the playlist and the identification information X1 to X6 of the playlist need only be associated with each other, and different identification information may be used.
  • Each playlist is setting information of a play item sequence sequence for determining a playback path.
  • the playlist X1 shown in the figure has a playback path according to an arrow shown in the content portion corresponding to the playlist X1 shown in the figure.
  • a playlist having information to be designated as Also for the playlists X2 to X6, the playback path in each corresponding content portion is defined.
  • An information processing apparatus that executes content reproduction obtains classification numbers X1 to Xn from a plurality (n) of sequence key blocks (SKB) stored in an information recording medium, and n pieces are selected according to the obtained classification numbers.
  • the playlists X1 to Xn are selected, and the plurality of playlists X1 to Xn are sequentially applied to execute content reproduction.
  • an information processing apparatus that executes content playback to which the playlist X1 is applied selects a playback path determined according to the playlist X1, that is, content configuration data (play item) according to the arrows shown in the figure. Perform playback.
  • the content is divided into a segment part and a non-segment part as shown in the figure, the non-segment part is encrypted with a CPS unit key, the segment part consists of multiple variations, each segment encrypted with a different segment key Consists of data.
  • the non-segment part When playing back content, the non-segment part performs decryption processing using the CPS unit key, and the segment part selects specific segment data defined by the playlist and obtains it from the segment key file recorded on the information recording medium. The content is reproduced by executing a decryption process using the segment key.
  • the segment key file storing the segment key is stored together with the content on the medium. For example, it is stored in the management data 112 in the first medium 110 shown in FIG.
  • a sequence key block (SKB) necessary for obtaining the classification numbers X1 to Xn for selecting the playlists X1 to Xn that define the reproduction path is also stored in the management data 112.
  • FIG. 8 shows a first medium 110 that stores encrypted content 244 that can be played back using a sequence key and a segment key, and an information processing apparatus 120 that performs playback processing.
  • the first medium 110 stores an MKB (Media Key Block) 241 as an encryption key block, a sequence key block (SKB) 242, and a segment key file 243. These data are included in the management data 112 in the configuration shown in FIG.
  • the first medium 110 stores data such as the copy control management file 111 described above with reference to FIG. 2, but is omitted in FIG.
  • the MKB (Media Key) 241 as an encryption key block is an MKB (Media Key) as an encryption key block generated based on a tree-structured key distribution method known as one aspect of the broadcast encryption method. Block), and the media key (Kd) can be extracted by the process using the device key 251 stored in the memory of the information processing apparatus 120.
  • the media key (Km) can be acquired only when the information processing apparatus has a valid license. The information processing apparatus that has been invalidated (revoked) cannot acquire the media key (Km).
  • Each sequence key block (SKB1 to SKBn) included in the sequence key block (SKB) 242 is encrypted into a classification number (Variant No.) for selecting a playlist that defines a playback path or a segment key file.
  • Information (media key variable (Kmv)) to be applied to decryption and acquisition of the stored segment key is stored, and the information processing apparatus that executes the content reproduction process acquires the information from each SKB.
  • the information processing apparatus 120 applies the device key (Kd) 251 stored in its own memory, executes the MKB process in step S201, and acquires the media key (Km). Unless the information processing device 120 is a revoked device (invalidated as an unauthorized device), the MKB process is successful and the media key (Km) can be acquired. If the information processing apparatus 120 is a revoked device, the MKB process fails and the media key (Km) cannot be acquired. In this case, subsequent processing cannot be executed, and content reproduction is impossible.
  • Kd device key
  • the acquired media key (Km) is stored in the information processing device in step S202.
  • the SKB process is executed by applying the sequence key acquired from the sequence key file.
  • the information processing apparatus 120 can acquire the classification number 261 and the media key variable (Kmv) 262 by the SKB process using the media key (Km) and the sequence key.
  • the classification number 261 is used as playlist selection information as described above. Further, the classification number 261 can be used as information for acquiring the corresponding segment key from the segment key file.
  • the media key variable (Kmv) 262 is used as information applied to the acquisition of the segment key from the segment key file storing the segment key applied to the decryption of the segment configuration data included in the playback path defined by the selected playlist. Is done.
  • step S103 the information processing apparatus 120 acquires a segment key file stored in the first medium 110, and acquires a segment key (Kseg) by decryption processing using the media key variable (Kmv) 262.
  • the CPS unit key is acquired separately from the CPS unit key file.
  • the information processing apparatus 120 acquires the classification number by processing the sequence key block reproduced from the medium 110 using the sequence key stored in the memory, and uses the classification number to determine the playlist.
  • a segment key corresponding to a specific variation in the segment is obtained from a segment key file including an encryption key obtained by encrypting a key for decrypting data corresponding to a reproduction path. Note that the content reproduction processing using the sequence key and segment key is described in detail in Japanese Patent Application Laid-Open No. 2008-84445, which is an earlier application of the present applicant.
  • the playlists that can be used by each information processing apparatus are different, and during the copy process, an available playlist associated with the information processing apparatus is selected, and the playback path defined by the playlist is selected. It is necessary to decrypt the content. In this decryption process, a decryption process using a unit key and a segment key must be performed.
  • the copy processing information (deal manifest) shown in FIG. 3 only lists the file names set under the BDMV directory. It is impossible to determine which playlist is a playlist that can be used in its own information processing apparatus. Also, there is no information for acquiring a unit key or segment key corresponding to the playback path.
  • the playback path designation content that can be played by applying the sequence key or segment key is content that is manually inserted along a specific playback path, and the data along the playback path is associated with the information processing apparatus. It is defined by a playlist determined based on the classification number. That is, a clip information file and a clip AV stream having information corresponding to the data path are determined by a specific playlist corresponding to a specific reproduction path allowed corresponding to the information processing apparatus.
  • copy processing information (deal manifest) to be presented to the information processing apparatus (user apparatus) during content copy processing using a sequence key or segment key has the data configuration shown in FIG.
  • the copy processing information (deal manifest) shown in FIG. Information stored in the copy permission list 121 provided to the information processing apparatus 120 from the management server 140 shown in FIG. Information stored in the copy control management file (MCMF) 111 stored in the first medium 110, As the setting to be included as at least one of the stored information, the information processing apparatus 120 that performs the copy process can be used. That is, the information processing device 120 is set as information that can be referred to when the content of the first medium 110 is copied to the second medium 150.
  • MCMF copy control management file
  • Copy processing information (deal manifest) shown in FIG. 9 is XML description data, similar to the data of FIGS. 3 and 5 described above, and is composed of the following two pieces of information.
  • the copy processing information (deal manifest) proposed in this example includes title information 303 as in the data shown in FIG.
  • the title information 303 is title identification information set as index data corresponding to the unit described above with reference to FIG.
  • the title information may be information for identifying an individual title or the title itself. That is, any information can be used as long as the information processing apparatus that executes the copy process can acquire the title data corresponding to the unit to be copied from the title information 303.
  • the clip information file name, the clip AV stream name, and the like are not recorded in the second information 302 [MCUPARTIAL].
  • the playlist file name that is, ⁇ FileName> BDMV / PLAYLIST / 00000. mpls ⁇ / FileName>
  • file names such as clip information (CLIPINF) and clip AV stream (STREAM) shown in FIGS. 3 and 5 are not recorded.
  • the flow shown in FIG. 10 is executed in the information processing apparatus 120 shown in FIG.
  • processing is performed by executing a program (copy processing (MC) program) stored in advance in a memory in the information processing device 120.
  • MC copy processing
  • step S301 a copy processing (MC) program is selected from the menu displayed on the display unit of the information processing apparatus 120 and activated.
  • step S302 a copy permission list request (Offer Request) is executed. This process corresponds to the process of step S11 described with reference to FIG. 2 and is performed as a copy permission list request (Offer Request) transmission process to the management server 140.
  • step S303 the copy permission list (Offer list) received from the management server 140 is displayed on the display unit of the information processing apparatus 120.
  • This list is display information generated based on copy processing information (dealManifest) as XML description data described with reference to FIG.
  • the information processing apparatus 120 may be configured to automatically execute a copy permission list request (Offer Request) transmission process to the management server 140 when a disk is loaded, not when the copy process is executed. That is, the information processing apparatus 120 receives a copy permission list from the management server 140 in advance when a disk is loaded, and stores it in a memory in the information processing apparatus.
  • a copy permission list request (Offer Request) transmission process
  • the copy permission list is already stored in the memory in the information processing apparatus. Therefore, communication with the management server 140 is omitted in the processes in steps S302 to S303, and the memory in the information processing apparatus 120 is omitted. Thus, a process of reading and displaying the copy permission list from is performed.
  • step S304 processing (Offer) is selected. Specifically, the copy target data is specified. This process is performed as an input process of selection information by the user via the input unit. For example, the user can specify a title included in display information generated based on the copy processing information (deal manifest) described with reference to FIG.
  • step S305 settlement processing is executed according to a predetermined sequence.
  • This process corresponds to a process using the settlement data 131 shown in FIG.
  • step S305 When the settlement process in step S305 is completed, the process proceeds to step S306, and the copy permission information (Permission) is received from the management server 140. This corresponds to the reception processing of the copy permission information 122 shown in FIG.
  • step S307 the information processing apparatus 120 acquires the title information selected from the copy processing information (deal manifest) by the user as a copy target.
  • step S308 the information processing apparatus 120 acquires a CPS unit key associated with the title information based on the selected title information.
  • the CPS unit key itself is stored in the CPS unit key file in the management data 112 shown in FIG.
  • the unit key identifiers (Ku1 to Kun) recorded in the unit key management table shown in FIG. 1 are used, and based on the unit key identifiers (Ku1 to Kun).
  • the unit key corresponding to the title is acquired from the CPS unit key file.
  • step S309 the information processing apparatus 120 applies the sequence key stored in the memory in the information processing apparatus, and performs the SKB process or the AACS process (such as the MKB process in FIG. 8) described with reference to FIG. ).
  • step S310 the information processing apparatus acquires a playlist number designated by the reproduction program (Movie Object) corresponding to the title information selected as the copy target. This corresponds to the classification number acquisition process by the SKB process described with reference to FIG. If the content to be copied is content activated by a Java (registered trademark) application, a playlist number is obtained by executing a BD-J application that is a Java (registered trademark) application.
  • a playlist number is obtained by executing a BD-J application that is a Java (registered trademark) application.
  • step S311 the information processing apparatus acquires a segment key from the segment key file.
  • This process corresponds to the segment key acquisition process by the decryption process of the segment key file 243 to which the media key variable acquired by the SKB process described with reference to FIG. 8 is applied.
  • step S312 the information processing apparatus executes decryption processing of the content to be copied using the CPS unit key and the segment key.
  • This decryption target content is content corresponding to the title information acquired in step S307, and is content corresponding to the playback path selected by the playlist determined based on the processing described with reference to FIG. .
  • step S313 the information processing apparatus performs copy data recording processing on the second medium 150 (see FIG. 2) such as an HDD or an R / RE disc, which is a copy destination medium, using the decrypted content. .
  • the copy process (1) Reading encrypted content from the first medium 110 (copy source medium), (2) Decryption processing of encrypted content according to the first management system corresponding to the first medium 110 (copy source medium), (3) Content encryption processing according to the second management system compatible with the second medium 150 (copy destination medium); (4) Recording process of encrypted content to the second medium 150 (copy destination medium); Processing is executed according to such a sequence.
  • the process described with reference to the flowchart shown in FIG. 10 executes a process of copying the stored content of the first medium to the second medium without performing the reproduction process of the copy target content.
  • a copy execution button is displayed as a UI on the display of the information processing apparatus. This is a sequence in which the user starts copy processing by an operation on this button, for example, a remote control operation.
  • the flow shown in FIG. 11 is also executed by the information processing apparatus 120 shown in FIG.
  • processing is performed by executing a program (copy processing (MC: Managed Copy) program) stored in advance in a memory in the information processing device 120. Processing in each processing step of the flowchart shown in FIG. 11 will be described.
  • MC Managed Copy
  • steps S351 to S354 is a content playback sequence to which a sequence key or a segment key is applied.
  • the information processing apparatus 120 executes the SKB process described with reference to FIG. 8 by applying the sequence key stored in the memory in the information processing apparatus.
  • step S352 the information processing apparatus acquires a playlist number selected by a playback program (Movie Object) corresponding to the title information selected as a playback target by the user. This corresponds to the classification number acquisition process by the SKB process described with reference to FIG.
  • step S353 the information processing apparatus acquires a segment key from the segment key file.
  • This process corresponds to the segment key acquisition process by the decryption process of the segment key file 243 to which the media key variable acquired by the SKB process described with reference to FIG. 8 is applied.
  • step S354 the information processing apparatus executes decryption processing of the content to be copied using the CPS unit key and the segment key.
  • the CPS unit key is acquired from the unit key file based on the unit key ID acquired from the unit key management table described with reference to FIG. 1 based on the title information selected as the reproduction target.
  • This reproduction target content is content corresponding to the title information, and is content corresponding to the reproduction path selected by the playlist determined based on the processing described with reference to FIG.
  • step S355 it is determined whether there is a user input for a copy processing request for a unit included in the content corresponding to the title being played.
  • a copy execution button is displayed as UI information on the display of the information processing apparatus.
  • the control unit of the information processing apparatus determines whether or not the copy execution button is operated. Note that the input of the copy execution button set in the information processing apparatus or the attached remote controller may be detected.
  • step S355 If no user input for the copy process request is detected in step S355, the reproduction process is continued in step S356. On the other hand, if a user input for a copy processing request is detected in step S355, the process proceeds to step S357.
  • step S357 a copy processing (MC) program is selected from the menu displayed on the display unit of the information processing apparatus 120 and activated.
  • step S358 a copy permission list request (Offer Request) is executed. This process corresponds to the process of step S11 described with reference to FIG. 2 and is performed as a copy permission list request (Offer Request) transmission process to the management server 140.
  • step S359 the copy permission list (Offer list) received from the management server 140 is displayed on the display unit of the information processing apparatus 120.
  • This list is display information generated based on copy processing information (dealManifest) as XML description data described with reference to FIG.
  • the copy permission list request (Offer Request) transmission process to the management server 140 is automatically executed when the disk is loaded, not when the copy process is executed, the copy permission list is stored in the information processing apparatus. Since it has already been stored in the memory, communication with the management server 140 is omitted in the processing of steps S358 to S359, and processing for reading and displaying the copy permission list from the memory in the information processing apparatus 120 is performed.
  • step S360 processing (Offer) is selected. Specifically, the copy target data is specified.
  • This process is performed as an input process of selection information by the user via the input unit.
  • the user can specify a title included in display information generated based on the copy processing information (deal manifest) described with reference to FIG.
  • step S361 settlement processing is executed according to a predetermined sequence.
  • This process corresponds to a process using the settlement data 131 shown in FIG.
  • step S361 When the settlement processing in step S361 is completed, the process proceeds to step S362, and the copy permission information (Permission) is received from the management server 140.
  • This is a reception process of the copy permission information 122 shown in FIG.
  • step S363 the information processing apparatus performs copy data recording processing on the second medium 150 (see FIG. 2) such as an HDD or an R / RE disc that is a copy destination medium.
  • the decryption process is performed as a process using the segment key acquired in step S353 and the CPS unit key acquired based on the title information.
  • This example of processing is configured to execute reproduction of content that can be reproduced according to a reproduction path set in correspondence with the information processing apparatus described with reference to FIG.
  • a decryption process using a CPS unit key and a segment key is required.
  • the information processing apparatus 120 that executes the copy processing records title information as shown in FIG. 9 and refers to copy processing information (deal manifest) in which a playlist file name is recorded. Further, the process using the sequence key described with reference to FIG. 8 acquires the classification number as the playlist identification information corresponding to the playlist file name, and acquires the segment key, and then starts the copy process. It is configured to do. With these processes, it is possible to execute the copy process after acquiring and decoding the content according to the playback path compatible with the information processing apparatus without error.
  • deal manifest copy processing information
  • the CPS unit key is obtained by applying the title designation information designated by applying the copy processing information (deal manifest) shown in FIG. Further, a classification number (playlist name) for specifying a playlist for executing reproduction of a reproduction path (see FIG. 7) set corresponding to the information processing apparatus by executing the SKB process shown in FIG. Identification information) that can be identified.
  • a play list that can be used by the information processing apparatus is acquired using the playlist name recorded in the copy processing information (dealManifest) shown in FIG. 9 using the classification number.
  • the content (AV stream file) specified by the selected playlist is decrypted and copied. .
  • a copy process of the clip information file specified by the playlist and the playlist is also executed. A smooth copy process is realized by such a process.
  • FIG. 12 shows the first medium 110 that records the playback content using the content code and the information processing apparatus 120 that executes the playback processing of the recorded content of the first medium 110.
  • the content code 401 is recorded on the first medium 110 together with the content 402.
  • content codes 401 There are various types of content codes 401.
  • the content code is a program that executes such various processes, and is executed in an information processing apparatus that executes a reproduction process.
  • the content code 401 illustrated in FIG. 12 is a content code that executes a verification process to check whether the reproduction process of the content 402 is correctly performed in a predetermined sequence.
  • the reproduction sequence of the information processing apparatus 120 is verified (checked) by the content code 401. For example, specifically, whether or not the reproduction process is correctly executed according to a prescribed sequence such as title # 1, title # 2, title # 3, etc., or is the title specified correctly after the menu is displayed?
  • the verification process is performed.
  • the reproduction process is forcibly stopped.
  • the content code shown in FIG. 13 is an example of a content code that executes a conversion process of the configuration data of the content 402.
  • the content 402 recorded on the first medium 110 includes normal content data 421a, b, c,... That has not been transformed, and broken data 422a, which is content that has been transformed and destroyed.
  • the broken data 422 is data obtained by destroying original contents by data processing. Therefore, normal content reproduction cannot be executed by applying the content 402 including the broken data.
  • FIG. 14 shows a first medium 110 storing content 402 that is requested to perform verification processing or conversion processing using a content code during playback, and an information processing device 120 that executes playback and copy processing of the content 402. Show.
  • the first medium 110 corresponds to the first medium 110 shown in FIG.
  • the first medium 110 stores content 402, a content code 401, management data 403, and a copy control management file (MCMF) 404.
  • the first medium 110 is a medium storing copy source content, like the first medium shown in FIG.
  • the management data 403 stores key information such as a CPS unit key.
  • the copy control management file (MCMF) 404 stores a file (MCMF) including the copy processing information (dealManifest) described above with reference to FIG.
  • the second medium 150 is a copy destination media of the recorded content of the first medium 110, and is configured by, for example, an HDD or an R / RE disc.
  • the information processing apparatus 120 first performs content reproduction processing when performing content copying processing. First, pre-processing is executed in step S501. Specifically, the CPS unit key used for decrypting the playback content designated by the user is acquired from the management data 403.
  • the content reproduction process is started by the user selecting a title by displaying an initial menu including title selection information on the display device 450. Therefore, the necessary CPS unit key is acquired from the title based on the correspondence data in the unit key management table described above with reference to FIG. In step S502, the decryption process of the content 402 using the CPS unit key is executed.
  • step S503 processing using the content code 401 is performed.
  • This content code application processing is, for example, reproduction sequence verification or content validity verification processing described with reference to FIG. 12, or content conversion processing described with reference to FIG.
  • step S505 a decoding process for content reproduction processing or a content copy process is executed.
  • step S504 the determination in step S504 is No, the process proceeds to step S511, and the process is stopped.
  • a process to which a copy control management file (MCMF) is applied is performed. Specifically, the processing described above with reference to the flowchart of FIG. 6 is executed. That is, a copy processing (MC) program is selected and started from the display unit of the information processing device 120 or the menu displayed on the display device 450 shown in FIG. 14, and a copy permission list request (Offer Request) is executed. A copy permission list request (Offer Request) is transmitted to the management server.
  • MC copy processing
  • the copy permission list (Offer list) received from the management server is displayed on the display unit.
  • the display information is generated based on copy processing information (dealManifest) as XML description data described with reference to FIG.
  • the copy target data is executed, for example, by specifying a title, and a settlement process according to a predetermined sequence is executed.
  • This process corresponds to a process using the settlement data 131 shown in FIG.
  • copy permission information (Permission) is received from the management server.
  • This is a reception process of the copy permission information 122 shown in FIG.
  • the information processing apparatus 120 executes a copy process.
  • the copy is performed based on the title selected from the copy processing information (deal manifest) described with reference to FIG.
  • the decryption process can be performed by selecting the CPS unit key to be applied to the process.
  • the content to be copied is content (content code application content) to be verified or converted by the content code
  • the following processing is performed during the copy processing.
  • the content reproduction process according to the prescribed reproduction sequence is executed, and the verification process and the conversion process using the content code are executed. Thereafter, the process proceeds to copy processing.
  • the copy process information (deal manifest) shown in FIG. 5 or FIG. 9 is applied, the title designation information designated at the time of reproduction is applied to obtain the CPS unit key, and the obtained CPS unit key is applied.
  • the content to be copied is decrypted in units of CPS units and a copy process is performed. A smooth copy process is realized by these processes.
  • data types can be classified into the following three types.
  • the information processing apparatus 120 shown in FIG. 2 transmits a copy permission list request (Offer Request) to the management server 140 when the first medium 110 in which the copy target content is recorded is loaded.
  • This is a sequence in the case where the copy processing list (Offerlist) is received from the management server 140 and stored in the memory in the information processing apparatus, and then the copy processing program (MC program) is activated to execute the copy processing.
  • the information processing apparatus 120 shown in FIG. 2 starts a copy processing program (MC program) when executing a copy, and then requests a copy permission list (Offer Request) to the management server 140. Is transmitted, and a copy permission list (Offerlist) is received from the management server 140 immediately before the copy is executed, and the copy process is performed.
  • MC program copy processing program
  • Offer Request copy permission list
  • This processing flow is a sequence for determining the content to be copied, that is, the type (content mode) of the content recorded on the first medium 110 shown in FIG. 2, and executing the copy processing according to the determination result.
  • processing is performed by executing a program (copy processing (MC) program) stored in advance in a memory in the information processing device 120.
  • MC copy processing
  • step S601 a copy processing (MC) program is selected from the menu displayed on the display unit of the information processing apparatus 120 and activated to execute a copy permission list request (Offer Request).
  • This process corresponds to the process of step S11 described with reference to FIG. 2 and is performed as a copy permission list request (Offer Request) transmission process to the management server 140.
  • the flow shown in FIG. 15 is a flow for automatically executing a copy permission list request (Offer Request) transmission process to the management server 140 when a disk is loaded. By this process, the copy permission list acquired from the management server 140 is stored in the memory in the information processing apparatus.
  • step S602 the information processing apparatus 120 verifies the directory of the first medium 110 (see FIG. 2) in which the copy source content is recorded, and the content corresponding to the reproduction path designation content or the content code application content. Execute the process to check whether there is a directory where data is set.
  • the copy target content recorded on the first medium 110 is of any of the following types (a) to (c).
  • step S602 If it is determined in step S602 that there is no directory in which the content or data corresponding to the playback path designation content or content code application content is set in the directory of the first medium 110 in which the copy source content is recorded,
  • the content, that is, the content to be copied is the above (a), that is, (A) Content encrypted with CPS unit key (unit encrypted content) It is determined that
  • step S616 After executing the processes in steps S621 to S625, the copy process is performed in step S616. That is, the following processing is executed sequentially.
  • Step S621 The copy allowance list (Offer list) received from the management server 140 is displayed on the display unit of the information processing apparatus 120.
  • the copy allowance list (Offer list) received when the disc is loaded is taken out from the memory and displayed.
  • This list is display information generated based on copy processing information (dealManifest) as XML description data described with reference to FIG.
  • Step S622 A process (Offer) is selected. Specifically, the copy target data is specified. This process is performed as an input process of selection information by the user via the input unit. For example, the user can specify a title included in display information generated based on the copy processing information (deal manifest) described with reference to FIG. When the copy target data is determined, the information is transmitted to the management server 140.
  • This process is performed as an input process of selection information by the user via the input unit. For example, the user can specify a title included in display information generated based on the copy processing information (dealManifest) described with reference to FIG.
  • Step S623 Settlement processing is executed according to a predefined sequence. This process corresponds to a process using the settlement data 131 shown in FIG.
  • Step S624 Copy permission information (Permission) is received from the management server 140. This is a reception process of the copy permission information 122 shown in FIG.
  • Step S625 A CPS unit key, which is a decryption key applied to copy target data (CPS unit), is acquired based on the title information selected as the copy target.
  • the CPS unit key is acquired from the unit key file based on the unit key ID acquired from the unit key management table described with reference to FIG. 1 based on the title information selected as the reproduction target.
  • Step S616 By applying the CPS unit key acquired in step S625, the content selected in accordance with the title information is decrypted to perform copy processing.
  • the content management system compatible with the second medium. For example, re-encryption processing according to various content management systems corresponding to media such as CPRM, MagicGate, and VCPS.
  • step S602 this is processing when it is determined in step S602 that there is a directory in which content and data corresponding to the playback path designation content or content code application content are set in the directory of the first medium 110 where the copy source content is recorded.
  • the copy target content recorded on the first medium 110 is (B) Content to be reproduced by selecting a reproduction path selected by a playlist corresponding to the information processing apparatus encrypted with the CPS unit key and the segment key (reproduction path designation content)
  • C Content subject to verification or conversion processing by content code (content code application content) It is determined that the content is any one of (b) and (c).
  • next step S603 it is determined whether or not the sequence key block (SKB) is recorded on the first medium 110 on which the content to be copied is recorded.
  • the sequence key block (SKB) is a block storing key information applied at the time of reproduction of the reproduction path designation content. If there is this sequence key block (SKB), the first It is determined that the content recorded on the medium 110 is a playback path designation content.
  • step S603 if it is determined that the sequence key block (SKB) is on the disc (first medium 110), the process proceeds to step S604. If it is determined that the sequence key block (SKB) is not on the disk (first medium 110), the process proceeds to step S608. If it is determined that there is no content, it is determined that the content recorded on the first medium 110 is content code application content.
  • step S603 when the SKB is recorded on the disc (first medium 110) and it is determined that the recorded content is the reproduction path designation content, the process proceeds to step S604, and the information processing apparatus 120 stores the information in the memory in the information processing apparatus.
  • the SKB process described with reference to FIG. 8 is executed by applying the stored sequence key.
  • step S605 the information processing apparatus obtains a playlist number specified by the playback program (Movie Object) corresponding to the title information selected as a playback target by the user. This corresponds to the classification number acquisition process by the SKB process described with reference to FIG.
  • step S606 the information processing apparatus acquires a segment key from the segment key file.
  • This process corresponds to the segment key acquisition process by the decryption process of the segment key file 243 to which the media key variable acquired by the SKB process described with reference to FIG. 8 is applied.
  • step S607 the information processing apparatus verifies whether or not the content code is on the disc. If there is no content code, the process proceeds to step S609, and if there is, the process proceeds to step S608.
  • the information processing apparatus executes a decryption process and a reproduction process of the content to be copied using the CPS unit key and the segment key in step S609.
  • the CPS unit key is acquired from the unit key file based on the unit key ID acquired from the unit key management table described with reference to FIG. 1 based on the title information selected as the reproduction target.
  • This reproduction target content is content corresponding to the title information, and is content corresponding to the reproduction path selected by the playlist determined based on the processing described with reference to FIG.
  • step S603 if it is determined in step S603 that the sequence key block (SKB) is not on the disc (first medium 110), it is determined that the content recorded on the first medium 110 is content code application content. The process proceeds to step S608. If it is determined in step S607 that the content code is on the disc, the process proceeds to step S608.
  • step S608 processing using the content code is performed.
  • This content code application processing is, for example, the reproduction sequence verification (check) processing described with reference to FIG. 12, or the content conversion processing described with reference to FIG.
  • step S609 decoding processing for content playback processing is executed, and content playback processing is started. If the content code application process is not completed, for example, in the reproduction sequence verification process using the content code, it is detected that the process according to the predetermined reproduction sequence is not executed, or the conversion process using the conversion data is performed. If it fails, the playback process is stopped.
  • step S610 After the content reproduction process is started in step S609, it is determined in step S610 whether or not there is a user input of a copy processing request for a unit included in the content corresponding to the title being reproduced.
  • a copy execution button is displayed as UI information on the display of the information processing apparatus.
  • the control unit of the information processing apparatus determines whether or not the copy execution button is operated. Note that the input of the copy execution button set in the information processing apparatus or the attached remote controller may be detected.
  • step S610 If no user input for the copy process request is detected in step S610, the reproduction process is continued in step S631. On the other hand, if the user input of the copy processing request is detected in step S610, the process proceeds to step S611.
  • step S611 a copy processing (MC) program is selected from the menu displayed on the display unit of the information processing apparatus 120 and activated.
  • step S612 a copy permission list (Offer list) received from the management server 140 in advance when the first medium 110 is loaded is acquired from the memory of the information processing apparatus 120 and displayed on the display unit.
  • This list is display information generated based on copy processing information (deal manifest) as XML description data described with reference to FIG. 5 or FIG.
  • the copy processing information (deal manifest) shown in FIG. 9 can be used.
  • the copy processing information (deal manifest) shown in FIG. 5 includes all the recording data of the copy processing information (deal manifest) shown in FIG. 9, and the copy processing information (deal manifest) shown in FIG. It can be used for both designated content and content code application content, and the copy processing information (deal manifest) shown in FIG. 5 may be used in common.
  • step S613 a process (Offer) is selected. Specifically, the copy target data is specified.
  • This process is performed as an input process of selection information by the user via the input unit.
  • the user can specify a title included in display information generated based on copy processing information (deal manifest) described with reference to FIG. 5 or FIG.
  • step S614 settlement processing is executed according to a predefined sequence.
  • This process corresponds to a process using the settlement data 131 shown in FIG.
  • step S614 When the settlement processing in step S614 is completed, the process advances to step S615 to receive copy permission information (Permission) from the management server 140.
  • This is a reception process of the copy permission information 122 shown in FIG.
  • step S616 the information processing apparatus performs copy data recording processing on the second medium 150 (see FIG. 2) such as an HDD or an R / RE disc that is the copy destination medium.
  • the second medium 150 such as an HDD or an R / RE disc that is the copy destination medium.
  • the content decryption process is a process using the segment key acquired in step S606 and the CPS unit key acquired based on the title information. As done. In this case, decryption processing of the content to be reproduced is performed according to the reproduction path set corresponding to the information processing apparatus described with reference to FIG.
  • the content decryption processing is performed as processing using a CPS unit key acquired based on the title information.
  • a copy permission list request (to the management server 140) ( A sequence in the case where the transmission of (Request) is executed, the copy permission list (Offerlist) is received from the management server 140 immediately before the copy is executed, and the process is executed will be described.
  • This processing flow is also a sequence for determining the content to be copied, that is, the type (content mode) of the content recorded on the first medium 110 shown in FIG. 2, and executing the copy processing according to the determination result.
  • processing 16 is executed in the information processing apparatus 120 shown in FIG.
  • processing is performed by executing a program (copy processing (MC) program) stored in advance in a memory in the information processing device 120.
  • MC copy processing
  • step S701 the information processing apparatus 120 verifies the directory of the first medium 110 (see FIG. 2) in which the copy source content is recorded, and sets the content and data corresponding to the playback path designation content or the content code application content. Check whether there is a directory that has been changed.
  • the content to be copied recorded on the first medium 110 is one of the following types (a) to (c).
  • step S702 If it is determined in step S702 that there is no directory in which the content or data corresponding to the playback path designation content or content code application content is set in the directory of the first medium 110 in which the copy source content is recorded, It is determined that the content to be copied is (a) content encrypted with a CPS unit key (unit encrypted content).
  • step S716 After executing the processes in steps S721 to S726, the copy process is performed in step S716. That is, the following processing is executed sequentially.
  • Step S721 A copy processing (MC) program is selected from the menu displayed on the display unit of the information processing apparatus 120 and activated, and a copy permission list request (Offer Request) is executed. This process corresponds to the process of step S11 described with reference to FIG. 2 and is performed as a copy permission list request (Offer Request) transmission process to the management server 140.
  • Step S722 The copy allowance list (Offer list) received from the management server 140 is displayed on the display unit of the information processing apparatus 120.
  • This list is display information generated based on copy processing information (dealManifest) as XML description data described with reference to FIG.
  • Step S723 A process (Offer) is selected. Specifically, the copy target data is specified. This process is performed as an input process of selection information by the user via the input unit. For example, the user can specify a title included in display information generated based on the copy processing information (deal manifest) described with reference to FIG. When the copy target data is determined, the information is transmitted to the management server 140.
  • This process is performed as an input process of selection information by the user via the input unit. For example, the user can specify a title included in display information generated based on the copy processing information (dealManifest) described with reference to FIG.
  • Step S724 Settlement processing is executed according to a predefined sequence. This process corresponds to a process using the settlement data 131 shown in FIG.
  • Step S725 Copy permission information (Permission) is received from the management server 140. This is a reception process of the copy permission information 122 shown in FIG.
  • Step S726 A CPS unit key, which is a decryption key applied to copy target data (CPS unit), is acquired based on the title information selected as the copy target.
  • the CPS unit key is acquired from the unit key file based on the unit key ID acquired from the unit key management table described with reference to FIG. 1 based on the title information selected as the reproduction target.
  • Step S716 By applying the CPS unit key acquired in step S726, the content selected in accordance with the title information is decrypted, and the copy processing is performed.
  • the content management system compatible with the second medium. For example, re-encryption processing according to various content management systems corresponding to media such as CPRM, MagicGate, and VCPS.
  • step S701 a process when it is determined Yes in the determination process of step S701 will be described. That is, this is processing when it is determined in step S701 that the directory of the first medium 110 in which the content of the copy source is recorded has a directory set with content and data corresponding to the reproduction path designation content or content code application content.
  • the copy target content recorded on the first medium 110 is (B) Content to be reproduced by selecting a reproduction path selected by a playlist corresponding to the information processing apparatus encrypted with the CPS unit key and the segment key (reproduction path designation content)
  • C Content subject to verification or conversion processing by content code (content code application content) It is determined that the content is any one of (b) and (c).
  • next step S702 it is determined whether or not the sequence key block (SKB) is recorded on the first medium 110 on which the content to be copied is recorded.
  • the sequence key block (SKB) is a block storing key information applied at the time of reproduction of the reproduction path designation content. If there is this sequence key block (SKB), the first It is determined that the content recorded on the medium 110 is a playback path designation content.
  • step S702 If it is determined in step S702 that the sequence key block (SKB) is on the disc (first medium 110), the process proceeds to step S703. If it is determined that the sequence key block (SKB) is not on the disk (first medium 110), the process proceeds to step S707. If it is determined that there is no content, it is determined that the content recorded on the first medium 110 is content code application content.
  • step S702 if the SKB is recorded on the disc (first medium 110) and it is determined that the recorded content is the playback path designation content, the process proceeds to step S703, and the information processing apparatus 120 stores the information in the memory in the information processing apparatus.
  • the SKB process described with reference to FIG. 8 is executed by applying the stored sequence key.
  • step S704 the information processing apparatus obtains a playlist number designated by a playback program (Movie Object) corresponding to the title information selected as a playback target by the user. This corresponds to the classification number acquisition process by the SKB process described with reference to FIG.
  • step S705 the information processing apparatus acquires a segment key from the segment key file.
  • This process corresponds to the segment key acquisition process by the decryption process of the segment key file 243 to which the media key variable acquired by the SKB process described with reference to FIG. 8 is applied.
  • step S706 the information processing apparatus verifies whether or not the content code is on the disc. If there is no content code, the process proceeds to step S708, and if there is, the process proceeds to step S707.
  • the information processing apparatus executes a decryption process and a reproduction process of the content to be copied using the CPS unit key and the segment key in step S708.
  • the CPS unit key is acquired from the unit key file based on the unit key ID acquired from the unit key management table described with reference to FIG. 1 based on the title information selected as the reproduction target.
  • This reproduction target content is content corresponding to the title information, and is content corresponding to the reproduction path selected by the playlist determined based on the processing described with reference to FIG.
  • step S702 if it is determined in step S702 that the sequence key block (SKB) is not on the disc (first medium 110), it is determined that the content recorded on the first medium 110 is content code application content. The process proceeds to step S707. If it is determined in step S706 that the content code is on the disc, the process proceeds to step S707.
  • step S707 processing using a content code is performed.
  • This content code application processing is, for example, the reproduction sequence verification (check) processing described with reference to FIG. 12, or the content conversion processing described with reference to FIG.
  • step S708 the decoding process for the content reproduction process is executed, and the content reproduction process is started. If the content code application process is not completed, for example, in the reproduction sequence verification process using the content code, it is detected that the process according to the predetermined reproduction sequence is not executed, or the conversion process using the conversion data is performed. If it fails, the playback process is stopped.
  • step S709 After the content reproduction process is started in step S708, it is determined in step S709 whether or not there is a user input for a copy processing request for a unit included in the title-corresponding content being reproduced.
  • a copy execution button is displayed as UI information on the display of the information processing apparatus.
  • the control unit of the information processing apparatus determines whether or not the copy execution button is operated. Note that the input of the copy execution button set in the information processing apparatus or the attached remote controller may be detected.
  • step S709 If no user input for the copy process request is detected in step S709, the reproduction process is continued in step S731. On the other hand, if the user input of the copy processing request is detected in step S709, the process proceeds to step S710.
  • step S710 a copy processing (MC) program is selected from the menu displayed on the display unit of the information processing apparatus 120 and activated.
  • step S711 a copy processing (MC) program is selected from the menu displayed on the display unit of the information processing apparatus 120 and activated to execute a copy permission list request (Offer Request).
  • This process corresponds to the process of step S11 described with reference to FIG. 2 and is performed as a copy permission list request (Offer Request) transmission process to the management server 140.
  • step S712 the copy permission list (Offer list) received from the management server 140 in advance when the first medium 110 is loaded is acquired from the memory of the information processing apparatus 120 and displayed on the display unit.
  • This list is display information generated based on copy processing information (dealManifest) as XML description data described with reference to FIG. 5 or FIG.
  • the copy processing information (deal manifest) shown in FIG. 9 can be used.
  • the copy processing information (deal manifest) shown in FIG. 5 includes all the recording data of the copy processing information (deal manifest) shown in FIG. 9, and the copy processing information (deal manifest) shown in FIG. It can be used for both designated content and content code application content, and the copy processing information (deal manifest) shown in FIG. 5 may be used in common.
  • processing is selected.
  • the copy target data is specified.
  • This process is performed as an input process of selection information by the user via the input unit.
  • the user can specify a title included in display information generated based on copy processing information (deal manifest) described with reference to FIG. 5 or FIG.
  • step S714 a settlement process according to a predefined sequence is executed. This process corresponds to a process using the settlement data 131 shown in FIG.
  • step S714 When the payment processing in step S714 is completed, the process proceeds to step S715, and the copy permission information (Permission) is received from the management server 140.
  • This is a reception process of the copy permission information 122 shown in FIG.
  • step S716 the information processing apparatus performs copy data recording processing on the second medium 150 (see FIG. 2) such as an HDD or an R / RE disc that is the copy destination medium.
  • the second medium 150 such as an HDD or an R / RE disc that is the copy destination medium.
  • the content decryption process is a process using the segment key acquired in step S705 and the CPS unit key acquired based on the title information. As done. In this case, decryption processing of the content to be reproduced is performed according to the reproduction path set corresponding to the information processing apparatus described with reference to FIG.
  • the content decryption processing is performed as processing using a CPS unit key acquired based on the title information.
  • the information processing apparatus that performs content copying executes optimal processing according to the type of content recorded on the copy source medium. Specifically, it is determined which type of content (a) to (c) below is recorded on the copy source medium (first medium 110 shown in FIG. 2).
  • C Content subject to verification or conversion processing by content code (content code application content)
  • a copy process is performed by executing a process necessary for the copy process corresponding to each content type.
  • the content to be copied is (A) Content encrypted with CPS unit key (unit encrypted content)
  • the following processing is performed. Apply the title specification information specified by applying the copy processing information (deal manifest) shown in FIG. 5 to acquire the CPS unit key, and apply the acquired CPS unit key to decrypt the content to be copied in units of CPS units. Copy processing.
  • the content to be copied is (B) Content to be reproduced by selecting a reproduction path selected by a playlist corresponding to the information processing apparatus encrypted with the CPS unit key and the segment key (reproduction path designation content) In the case of this reproduction path designation content, the following processing is performed.
  • the CPS unit key is obtained by applying the title designation information designated by applying the copy processing information (deal manifest) shown in FIG. Further, a classification number (playlist name) for specifying a playlist for executing reproduction of a reproduction path (see FIG. 7) set corresponding to the information processing apparatus by executing the SKB process shown in FIG. Identification information) that can be identified.
  • a play list that can be used by the information processing apparatus is acquired using the playlist name recorded in the copy processing information (dealManifest) shown in FIG. 9 using the classification number.
  • the segment key and CPS unit key obtained as a result of the SKB process shown in FIG. 8 the content (AV stream file) specified by the selected playlist is decrypted and copied. .
  • a copy process of the clip information file specified by the playlist and the playlist is also executed.
  • the content to be copied is (C) Content subject to verification or conversion processing by content code (content code application content)
  • content code application content the following processing is performed.
  • the content reproduction process according to the prescribed reproduction sequence is executed, and the verification process and the conversion process using the content code are executed. Thereafter, the process proceeds to copy processing.
  • the copy process information (deal manifest) shown in FIG. 5 or FIG. 9 is applied, the title designation information designated at the time of reproduction is applied to obtain the CPS unit key, and the obtained CPS unit key is applied.
  • the content to be copied is decrypted in units of CPS units and a copy process is performed.
  • the copy process is executed according to the process corresponding to the type of content to be copied.
  • the copy process is executed according to the process corresponding to the type of content to be copied.
  • the information processing apparatus 100 has a configuration in which, for example, a first medium 110 that is a recording medium for copy source content and a second medium 150 that is a content copy destination can be mounted. Note that it is not always necessary to be able to mount two media.
  • the copy destination media may be mounted on another device connected by a USB cable or wireless communication to output copy data.
  • various media such as Blu-ray Disc (registered trademark), DVD, hard disk, and flash memory can be used.
  • the information processing apparatus 120 includes a data processing unit (control unit) 501, a communication unit 502, an input unit 503, an output unit 504, a memory 505, a first media interface 506, and a second media interface 507. .
  • the data processing unit 501 is constituted by a CPU having a program execution function for executing various data processing programs. For example, in addition to the data recording / reproducing process, a program for executing a copy process according to each of the flowcharts described above is executed. Further, control of overall processing executed by the apparatus such as communication processing with the management server 140 via the communication unit 102 is performed.
  • the communication unit 502 is used for communication processing with the management server 140, requests and receives a copy permission list including the above-described copy processing information (deal manifest), and further performs settlement processing or copy permission information (Permission) reception processing. Used for etc.
  • the input unit 503 is, for example, a user operation unit, and various inputs such as data recording or reproduction instruction and copy instruction input are performed. Note that the input unit 503 includes a remote controller, and remote controller operation information can also be input.
  • the output unit 504 is an image or audio output unit configured by a display, a speaker, and the like.
  • the memory 505 includes a RAM, a ROM, and the like, and is used as a program executed in the data processing unit 501, various parameters, a reception data storage area, and the like, and further used as a copy data buffer area.
  • the first media interface 506 is an interface applied to data recording, playback, and copy processing using the first medium 110.
  • the second media interface 507 is an interface applied to data recording, playback processing, and copy processing using the second media 150.
  • data writing, data reading processing, data copying processing, and the like using the second medium 150 are performed.
  • the series of processes described in the specification can be executed by hardware, software, or a combined configuration of both.
  • 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.
  • the program can be recorded in advance on 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.
  • 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.
  • 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.
  • the information processing apparatus that performs the process of copying the recording data of the information recording medium to another medium or the like, it is recorded on the copy source recording medium.
  • the content to be copied is a reproduction path designation content that sets a reproduction path corresponding to the information processing apparatus and executes reproduction according to the reproduction path, or verifies a reproduction sequence executed in the reproduction apparatus,
  • a type such as a content code application content that verifies whether the reproduction process is executed according to a correct reproduction procedure is determined, and a copy process is executed by applying an optimum sequence according to the determination result.
  • First media 111 Copy control management file 112 Management data 113 Encrypted content 120 Information processing apparatus 121 Copy permission list 122 Copy permission information 131 Settlement data 140 Management server 141 Management data 150 Second media 151 Encrypted content 241 Media key block ( MKB) 242 Sequence key block (SKB) 243 Segment key file 244 Encrypted content 251 Device key 252 Sequence key file 261 Classification number 262 Media key variable 401 Content code 402 Content 403 Management data 404 Copy control management file 450 Display device 501 Data processing unit (control unit) 502 communication unit 503 input unit 504 output unit 505 memory 506 first media interface 507 second media interface

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Technology Law (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Storage Device Security (AREA)
  • Television Signal Processing For Recording (AREA)
PCT/JP2010/070103 2009-12-18 2010-11-11 情報処理装置、情報処理システム、および情報処理方法、並びにプログラム Ceased WO2011074358A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP10837387A EP2515302A1 (en) 2009-12-18 2010-11-11 Information processing device, information processing system, information processing method, and program
US13/515,188 US8788844B2 (en) 2009-12-18 2010-11-11 Information processing apparatus, information processing system and information processing method, and program
IN5118DEN2012 IN2012DN05118A (enExample) 2009-12-18 2010-11-11
BR112012014088A BR112012014088A2 (pt) 2009-12-18 2010-11-11 aparelho, sistema e método de processamento de informação, e, programa.
CN2010800562738A CN102782759A (zh) 2009-12-18 2010-11-11 信息处理设备、信息处理系统和信息处理方法、以及程序

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009288019A JP5644100B2 (ja) 2009-12-18 2009-12-18 情報処理装置、情報処理システム、および情報処理方法、並びにプログラム
JP2009-288019 2009-12-18

Publications (1)

Publication Number Publication Date
WO2011074358A1 true WO2011074358A1 (ja) 2011-06-23

Family

ID=44167123

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/070103 Ceased WO2011074358A1 (ja) 2009-12-18 2010-11-11 情報処理装置、情報処理システム、および情報処理方法、並びにプログラム

Country Status (8)

Country Link
US (1) US8788844B2 (enExample)
EP (1) EP2515302A1 (enExample)
JP (1) JP5644100B2 (enExample)
CN (1) CN102782759A (enExample)
BR (1) BR112012014088A2 (enExample)
IN (1) IN2012DN05118A (enExample)
TW (1) TWI431617B (enExample)
WO (1) WO2011074358A1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9531547B2 (en) * 2015-04-06 2016-12-27 Vmware, Inc. Host-based digital signature verification for guest components
CN108471411B (zh) * 2018-03-19 2020-11-13 银联商务股份有限公司 密钥处理方法及装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001332019A (ja) * 2000-05-17 2001-11-30 Taiyo Yuden Co Ltd ライトワンス型光ディスク用データ記録再生方法、ライトワンス型光ディスク用データ再生装置および記録媒体
JP2002025182A (ja) * 2000-06-30 2002-01-25 Matsushita Electric Ind Co Ltd メディア変換装置および複数メディア対応のデータ処理装置
JP2008084445A (ja) 2006-09-27 2008-04-10 Sony Corp 情報処理装置、情報記録媒体、および情報処理方法、並びにコンピュータ・プログラム
JP2008098765A (ja) 2006-10-06 2008-04-24 Sony Corp 情報処理装置、および情報処理方法、並びにコンピュータ・プログラム
JP4140624B2 (ja) 2005-09-16 2008-08-27 ソニー株式会社 情報処理装置、情報記録媒体製造装置、情報記録媒体、および方法、並びにコンピュータ・プログラム

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04140624A (ja) 1990-10-01 1992-05-14 Toyota Central Res & Dev Lab Inc トルク測定装置
US7020697B1 (en) * 1999-10-01 2006-03-28 Accenture Llp Architectures for netcentric computing systems
JP4934923B2 (ja) * 2001-08-09 2012-05-23 ソニー株式会社 情報記録装置、情報再生装置、および情報記録方法、情報再生方法、並びにコンピュータ・プログラム
US8046837B2 (en) * 2005-08-26 2011-10-25 Sony Corporation Information processing device, information recording medium, information processing method, and computer program
US8018609B2 (en) * 2005-09-13 2011-09-13 Sony Corporation Information processing device, information recording medium manufacturing device, information recording medium, methods therefore, and computer program
US7965922B2 (en) * 2005-09-16 2011-06-21 Sony Corporation Information processing device, information recording medium manufacturing device, information recording medium, methods thereof, and computer program
JP4899442B2 (ja) * 2005-11-21 2012-03-21 ソニー株式会社 情報処理装置、情報記録媒体製造装置、情報記録媒体、および方法、並びにコンピュータ・プログラム
JP5034227B2 (ja) * 2005-11-29 2012-09-26 ソニー株式会社 情報処理装置、情報記録媒体製造装置、情報記録媒体、および方法、並びにコンピュータ・プログラム
JP4655951B2 (ja) * 2006-02-06 2011-03-23 ソニー株式会社 情報処理装置、情報記録媒体製造装置、情報記録媒体、および方法、並びにコンピュータ・プログラム
JP2008084145A (ja) 2006-09-28 2008-04-10 Nissan Diesel Motor Co Ltd 運行記録装置
JP5018494B2 (ja) * 2008-01-16 2012-09-05 ソニー株式会社 情報処理装置、ディスク、および情報処理方法、並びにプログラム

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001332019A (ja) * 2000-05-17 2001-11-30 Taiyo Yuden Co Ltd ライトワンス型光ディスク用データ記録再生方法、ライトワンス型光ディスク用データ再生装置および記録媒体
JP2002025182A (ja) * 2000-06-30 2002-01-25 Matsushita Electric Ind Co Ltd メディア変換装置および複数メディア対応のデータ処理装置
JP4140624B2 (ja) 2005-09-16 2008-08-27 ソニー株式会社 情報処理装置、情報記録媒体製造装置、情報記録媒体、および方法、並びにコンピュータ・プログラム
JP2008084445A (ja) 2006-09-27 2008-04-10 Sony Corp 情報処理装置、情報記録媒体、および情報処理方法、並びにコンピュータ・プログラム
JP2008098765A (ja) 2006-10-06 2008-04-24 Sony Corp 情報処理装置、および情報処理方法、並びにコンピュータ・プログラム

Also Published As

Publication number Publication date
CN102782759A (zh) 2012-11-14
IN2012DN05118A (enExample) 2015-10-23
TW201140566A (en) 2011-11-16
JP2011129214A (ja) 2011-06-30
US8788844B2 (en) 2014-07-22
EP2515302A1 (en) 2012-10-24
JP5644100B2 (ja) 2014-12-24
US20120272070A1 (en) 2012-10-25
BR112012014088A2 (pt) 2016-07-05
TWI431617B (zh) 2014-03-21

Similar Documents

Publication Publication Date Title
JP5147733B2 (ja) 記録装置、サーバ装置、記録方法、コンピュータプログラムを記録した記録媒体、及び集積回路
JP4882653B2 (ja) 情報処理装置、および情報処理方法、並びにコンピュータ・プログラム
US8166556B2 (en) Information processing apparatus, information recording medium, information processing method and computer program
US8095790B2 (en) Information processing apparatus and method, and computer program
KR20110042296A (ko) 정보 처리 장치 및 데이터 처리 방법, 및 프로그램
JP2006236120A (ja) 情報処理装置、および情報記録媒体製造方法、並びにコンピュータ・プログラム
JP4770650B2 (ja) 情報処理装置および情報処理方法並びにコンピュータ・プログラム
JP4779978B2 (ja) 情報処理装置、情報記録媒体、および情報処理方法、並びにコンピュータ・プログラム
JP5633236B2 (ja) 情報処理装置、および情報処理方法、並びにプログラム
JP5552928B2 (ja) 情報処理装置、および情報処理方法、並びにプログラム
JP2009093720A (ja) 情報処理装置、コンテンツ利用システム、および情報処理方法、並びにコンピュータ・プログラム
US8020212B2 (en) Information processing apparatus and method, content management system, information recording medium, and computer program
JP5217713B2 (ja) 情報処理装置、情報処理システム、情報記録媒体、および情報処理方法、並びにプログラム
CN102067222B (zh) 针对下载数据的光盘中的cps单元管理
JP5445104B2 (ja) 情報処理装置、情報記録媒体、および情報処理方法、並びにプログラム
JP4264551B2 (ja) 情報処理装置、情報記録媒体製造装置、情報記録媒体、および方法、並びにコンピュータ・プログラム
JP5644100B2 (ja) 情報処理装置、情報処理システム、および情報処理方法、並びにプログラム
JP5045357B2 (ja) コンテンツ利用システム、およびデータ処理方法
JP4994416B2 (ja) 情報処理装置、情報記録媒体、および情報処理方法、並びにコンピュータ・プログラム
JP2010020632A (ja) 情報処理装置、情報処理システム、および情報処理方法、並びにプログラム
WO2017038493A1 (ja) 情報処理装置、および情報処理方法、並びにプログラム

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201080056273.8

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10837387

Country of ref document: EP

Kind code of ref document: A1

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10837387

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2010837387

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 13515188

Country of ref document: US

Ref document number: 5118/DELNP/2012

Country of ref document: IN

NENP Non-entry into the national phase

Ref country code: DE

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112012014088

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 112012014088

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20120611