WO2009004707A1 - 情報記録媒体、記録装置及び再生装置 - Google Patents

情報記録媒体、記録装置及び再生装置 Download PDF

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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
English (en)
French (fr)
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/ja
Publication of WO2009004707A1 publication Critical patent/WO2009004707A1/ja
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

情報記録媒体（１）は、コンテンツを記録可能な記録領域（１３）と、該記録領域に記録されるコンテンツの再生を制御する制御情報を記録可能な制御情報区画（１２２）、並びに、少なくとも前記記録されるコンテンツを再生するための第１鍵情報が暗号化されてなる暗号化第１鍵情報、及び該暗合化第１鍵情報を復号化するための復号化情報の一部である第２鍵情報が予め記録されている鍵情報区画（１２１）を有する情報領域（１２）とを備える。その記録時の最後に、暗号化第１鍵情報を復号化して、制御情報区画に記録すれば、情報記録媒体に記録されるコンテンツの記録状態を保証することができる。
PCT/JP2007/063234 2007-07-02 2007-07-02 情報記録媒体、記録装置及び再生装置 Ceased WO2009004707A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/063234 WO2009004707A1 (ja) 2007-07-02 2007-07-02 情報記録媒体、記録装置及び再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/063234 WO2009004707A1 (ja) 2007-07-02 2007-07-02 情報記録媒体、記録装置及び再生装置

Publications (1)

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

Family

ID=40225777

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/063234 Ceased WO2009004707A1 (ja) 2007-07-02 2007-07-02 情報記録媒体、記録装置及び再生装置

Country Status (1)

Country Link
WO (1) WO2009004707A1 (ja)

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 (ja) * 2003-09-30 2005-04-21 Sony Corp データ記録媒体、記録装置、信号処理システム、記録方法、記録方法のプログラム並びにプログラムを格納した記録媒体
WO2005121977A1 (ja) * 2004-06-09 2005-12-22 Matsushita Electric Industrial Co., Ltd. コンテンツデータ処理装置、記録再生装置および記録再生システム
WO2006008972A1 (ja) * 2004-07-15 2006-01-26 Sony Corporation 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
WO2006011527A1 (ja) * 2004-07-30 2006-02-02 Matsushita Electric Industrial Co., Ltd. 記録装置、コンテンツ鍵処理装置、記録媒体、及び記録方法
WO2006082961A1 (ja) * 2005-02-07 2006-08-10 Matsushita Electric Industrial Co., Ltd. 記録装置、再生装置、集積回路及び制御プログラム

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 (ja) * 2003-09-30 2005-04-21 Sony Corp データ記録媒体、記録装置、信号処理システム、記録方法、記録方法のプログラム並びにプログラムを格納した記録媒体
WO2005121977A1 (ja) * 2004-06-09 2005-12-22 Matsushita Electric Industrial Co., Ltd. コンテンツデータ処理装置、記録再生装置および記録再生システム
WO2006008972A1 (ja) * 2004-07-15 2006-01-26 Sony Corporation 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
WO2006011527A1 (ja) * 2004-07-30 2006-02-02 Matsushita Electric Industrial Co., Ltd. 記録装置、コンテンツ鍵処理装置、記録媒体、及び記録方法
WO2006082961A1 (ja) * 2005-02-07 2006-08-10 Matsushita Electric Industrial Co., Ltd. 記録装置、再生装置、集積回路及び制御プログラム

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