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WO2009004707A1 - Information recording medium, recording apparatus and regeneration apparatus - Google Patents

Information recording medium, recording apparatus and regeneration apparatus Download PDF

Info

Publication number
WO2009004707A1
WO2009004707A1 PCT/JP2007/063234 JP2007063234W WO2009004707A1 WO 2009004707 A1 WO2009004707 A1 WO 2009004707A1 JP 2007063234 W JP2007063234 W JP 2007063234W WO 2009004707 A1 WO2009004707 A1 WO 2009004707A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
recording
regeneration
recording medium
key information
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/JP2007/063234
Other languages
French (fr)
Japanese (ja)
Inventor
Keiji Katata
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.)
Pioneer Corp
Original Assignee
Pioneer 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 Pioneer Corp filed Critical Pioneer Corp
Priority to PCT/JP2007/063234 priority Critical patent/WO2009004707A1/en
Publication of WO2009004707A1 publication Critical patent/WO2009004707A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
    • 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
    • G11B20/0021—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
    • 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
    • G11B20/00485—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 characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier
    • G11B20/00492—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 characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier wherein content or user data is encrypted
    • 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
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Storage Device Security (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

Information recording medium (1) comprises recording area (13) capable of recording contents and information area (12), this information area provided with control information section (122) capable of recording control information for controlling of regeneration of the contents recorded in the recording area and key information section (121) in which at least encrypted first key information resulting from encryption of first key information for regeneration of the recorded contents and second key information being part of decryption information for decryption of the encrypted first key information are recorded in advance. The state of recording of contents recorded in the information recording medium can be ensured by at the final stage of the recording, decrypting the encrypted first key information and recording the same in the control information section.
PCT/JP2007/063234 2007-07-02 2007-07-02 Information recording medium, recording apparatus and regeneration apparatus Ceased WO2009004707A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/063234 WO2009004707A1 (en) 2007-07-02 2007-07-02 Information recording medium, recording apparatus and regeneration apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/063234 WO2009004707A1 (en) 2007-07-02 2007-07-02 Information recording medium, recording apparatus and regeneration apparatus

Publications (1)

Publication Number Publication Date
WO2009004707A1 true WO2009004707A1 (en) 2009-01-08

Family

ID=40225777

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/063234 Ceased WO2009004707A1 (en) 2007-07-02 2007-07-02 Information recording medium, recording apparatus and regeneration apparatus

Country Status (1)

Country Link
WO (1) WO2009004707A1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997014144A1 (en) * 1995-10-09 1997-04-17 Matsushita Electric Industrial Co., Ltd. Optical disk, optical recorder, optical reproducing device, encrypted communication system, and authorizing system for use of program
WO2000067257A2 (en) * 1999-04-28 2000-11-09 Matsushita Electric Industrial Co., Ltd. Optical disk, optical disk recording and reproducing apparatus, method for recording, reproducing and deleting data on optical disk, and information processing system
WO2003036858A2 (en) * 2001-10-26 2003-05-01 Matsushita Electric Industrial Co., Ltd. Digital work protection system, key management apparatus, and user apparatus
EP1318517A2 (en) * 2001-12-07 2003-06-11 Pioneer Corporation Data recording medium, reproduction apparatus; recording apparatus, reproducing method, recording method, computer-readable recorded medium in which reproducing program is recorded, and computer-readable recorded medium in which recording program is recorded
JP2005109839A (en) * 2003-09-30 2005-04-21 Sony Corp Data recording medium, recording apparatus, signal processing system, recording method, recording method program, and recording medium storing program
WO2005121977A1 (en) * 2004-06-09 2005-12-22 Matsushita Electric Industrial Co., Ltd. Content data processing device, recording/reproduction device, and recording/reproduction system
WO2006008972A1 (en) * 2004-07-15 2006-01-26 Sony Corporation Information processing device, information processing method, and computer program
WO2006011527A1 (en) * 2004-07-30 2006-02-02 Matsushita Electric Industrial Co., Ltd. Recording device, content key processing device, recording medium, and recording method
WO2006082961A1 (en) * 2005-02-07 2006-08-10 Matsushita Electric Industrial Co., Ltd. Recording device, replay device, integrated circuit, and control program

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997014144A1 (en) * 1995-10-09 1997-04-17 Matsushita Electric Industrial Co., Ltd. Optical disk, optical recorder, optical reproducing device, encrypted communication system, and authorizing system for use of program
WO2000067257A2 (en) * 1999-04-28 2000-11-09 Matsushita Electric Industrial Co., Ltd. Optical disk, optical disk recording and reproducing apparatus, method for recording, reproducing and deleting data on optical disk, and information processing system
WO2003036858A2 (en) * 2001-10-26 2003-05-01 Matsushita Electric Industrial Co., Ltd. Digital work protection system, key management apparatus, and user apparatus
EP1318517A2 (en) * 2001-12-07 2003-06-11 Pioneer Corporation Data recording medium, reproduction apparatus; recording apparatus, reproducing method, recording method, computer-readable recorded medium in which reproducing program is recorded, and computer-readable recorded medium in which recording program is recorded
JP2005109839A (en) * 2003-09-30 2005-04-21 Sony Corp Data recording medium, recording apparatus, signal processing system, recording method, recording method program, and recording medium storing program
WO2005121977A1 (en) * 2004-06-09 2005-12-22 Matsushita Electric Industrial Co., Ltd. Content data processing device, recording/reproduction device, and recording/reproduction system
WO2006008972A1 (en) * 2004-07-15 2006-01-26 Sony Corporation Information processing device, information processing method, and computer program
WO2006011527A1 (en) * 2004-07-30 2006-02-02 Matsushita Electric Industrial Co., Ltd. Recording device, content key processing device, recording medium, and recording method
WO2006082961A1 (en) * 2005-02-07 2006-08-10 Matsushita Electric Industrial Co., Ltd. Recording device, replay device, integrated circuit, and control program

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