WO2008102425A1 - データ送信装置、データ記録装置、データ処理システム、データ送信方法、および、データ記録方法 - Google Patents

データ送信装置、データ記録装置、データ処理システム、データ送信方法、および、データ記録方法 Download PDF

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Publication number
WO2008102425A1
WO2008102425A1 PCT/JP2007/052968 JP2007052968W WO2008102425A1 WO 2008102425 A1 WO2008102425 A1 WO 2008102425A1 JP 2007052968 W JP2007052968 W JP 2007052968W WO 2008102425 A1 WO2008102425 A1 WO 2008102425A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
title key
encrypted
processing system
data transmission
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/JP2007/052968
Other languages
English (en)
French (fr)
Inventor
Tsuyoshi Namiki
Tsuyoshi Hasebe
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/JP2007/052968 priority Critical patent/WO2008102425A1/ja
Publication of WO2008102425A1 publication Critical patent/WO2008102425A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • G11B20/00528—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 wherein each title is encrypted with a separate encryption key for each title, e.g. title key for movie, song or data file
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/0822—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using key encryption key
    • 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
    • G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/215—Recordable 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
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
    • G11B2220/2566—DVDs belonging to the minus family, i.e. -R, -RW, -VR
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60—Digital content management, e.g. content distribution

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

　データ処理システム１００Ａの配信サーバ３００は、未暗号化コンテンツデータ１０をタイトルキーにより部分的に暗号化したＣＳＳ暗号化コンテンツデータ２０を、ビットマップデータ３０およびタイトルキーリスト４０とともにホスト装置４１０へ送信する。ホスト装置４１０は、タイトルキーリスト４０をバスキーによりドライブ装置４６０で復号化可能に暗号化して、ビットマップデータ３０およびメインデータとともにドライブ装置４６０へ転送する。ドライブ装置４６０は、バスキーで復号化したタイトルキーリスト４０およびビットマップデータ３０に基づいて、暗号化されていない旨の情報が記録されたセクタ暗号化情報および未暗号化メインデータを有するセクタデータや、タイトルキーが記録されたセクタ暗号化情報および暗号化メインデータを有するセクタデータをＤＶＤ－Ｒ１に記録する。
PCT/JP2007/052968 2007-02-19 2007-02-19 データ送信装置、データ記録装置、データ処理システム、データ送信方法、および、データ記録方法 Ceased WO2008102425A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/052968 WO2008102425A1 (ja) 2007-02-19 2007-02-19 データ送信装置、データ記録装置、データ処理システム、データ送信方法、および、データ記録方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/052968 WO2008102425A1 (ja) 2007-02-19 2007-02-19 データ送信装置、データ記録装置、データ処理システム、データ送信方法、および、データ記録方法

Publications (1)

Publication Number Publication Date
WO2008102425A1 true WO2008102425A1 (ja) 2008-08-28

Family

ID=39709710

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/052968 Ceased WO2008102425A1 (ja) 2007-02-19 2007-02-19 データ送信装置、データ記録装置、データ処理システム、データ送信方法、および、データ記録方法

Country Status (1)

Country Link
WO (1) WO2008102425A1 (ja)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1188859A (ja) * 1997-06-24 1999-03-30 Internatl Business Mach Corp <Ibm> コンピュータ・システムにおけるコピーライト・データの保護方法及び装置
JP2001156771A (ja) * 1999-11-30 2001-06-08 Victor Co Of Japan Ltd 暗号化情報伝送方法、暗号化情報伝送装置、及び伝送媒体
JP2002009757A (ja) * 2000-06-20 2002-01-11 Casio Comput Co Ltd データ暗号化装置及びデータ復号化装置
JP2002158654A (ja) * 2000-11-17 2002-05-31 Hitachi Ltd 情報処理装置、表示装置、デジタルコンテンツ配布システム、および、デジタルコンテンツ配布・出力方法
JP2004070049A (ja) * 2002-08-07 2004-03-04 Denso Corp データの暗号化方法及び装置、データの復号化方法及び装置、プログラム
JP2005109840A (ja) * 2003-09-30 2005-04-21 Sony Corp 信号処理システム、記録再生装置、記録方法、記録方法のプログラム並びに記録媒体

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1188859A (ja) * 1997-06-24 1999-03-30 Internatl Business Mach Corp <Ibm> コンピュータ・システムにおけるコピーライト・データの保護方法及び装置
JP2001156771A (ja) * 1999-11-30 2001-06-08 Victor Co Of Japan Ltd 暗号化情報伝送方法、暗号化情報伝送装置、及び伝送媒体
JP2002009757A (ja) * 2000-06-20 2002-01-11 Casio Comput Co Ltd データ暗号化装置及びデータ復号化装置
JP2002158654A (ja) * 2000-11-17 2002-05-31 Hitachi Ltd 情報処理装置、表示装置、デジタルコンテンツ配布システム、および、デジタルコンテンツ配布・出力方法
JP2004070049A (ja) * 2002-08-07 2004-03-04 Denso Corp データの暗号化方法及び装置、データの復号化方法及び装置、プログラム
JP2005109840A (ja) * 2003-09-30 2005-04-21 Sony Corp 信号処理システム、記録再生装置、記録方法、記録方法のプログラム並びに記録媒体

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