KR100974448B1 - 광디스크의 복사 방지 정보 관리방법 - Google Patents

광디스크의 복사 방지 정보 관리방법 Download PDF

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Publication number
KR100974448B1
KR100974448B1 KR1020030026148A KR20030026148A KR100974448B1 KR 100974448 B1 KR100974448 B1 KR 100974448B1 KR 1020030026148 A KR1020030026148 A KR 1020030026148A KR 20030026148 A KR20030026148 A KR 20030026148A KR 100974448 B1 KR100974448 B1 KR 100974448B1
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KR
South Korea
Prior art keywords
recorded
key
optical disc
protection information
copy protection
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.)
Expired - Fee Related
Application number
KR1020030026148A
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English (en)
Korean (ko)
Other versions
KR20040092648A (ko
Inventor
김형선
김병진
Original Assignee
엘지전자 주식회사
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
Priority to KR1020030026148A priority Critical patent/KR100974448B1/ko
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to CNB2004800108913A priority patent/CN100385521C/zh
Priority to BRPI0409693-2A priority patent/BRPI0409693A/pt
Priority to JP2006507822A priority patent/JP2006526244A/ja
Priority to PCT/KR2004/000952 priority patent/WO2004095162A2/en
Priority to EP04729378A priority patent/EP1623414A4/en
Priority to US10/831,127 priority patent/US20040213111A1/en
Publication of KR20040092648A publication Critical patent/KR20040092648A/ko
Priority to US12/055,065 priority patent/US20080175389A1/en
Application granted granted Critical
Publication of KR100974448B1 publication Critical patent/KR100974448B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • G11B19/122—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of an identification or authentication mark
    • 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
    • G11B20/00188—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier
    • G11B20/00195—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier using a device identifier associated with the player or recorder, e.g. serial numbers of playback apparatuses or MAC addresses
    • 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
    • G11B20/00246—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 obtained from a local device, e.g. device key initially stored by the player or by the recorder
    • 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
    • G11B20/00369—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 wherein a first key, which is usually stored on a hidden channel, e.g. in the lead-in of a BD-R, unlocks a key locker containing a second
    • 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
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • G11B7/0053—Reproducing non-user data, e.g. wobbled address, prepits, BCA
    • 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
    • H04L2209/605—Copy protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Storage Device Security (AREA)
KR1020030026148A 2003-04-24 2003-04-24 광디스크의 복사 방지 정보 관리방법 Expired - Fee Related KR100974448B1 (ko)

Priority Applications (8)

Application Number Priority Date Filing Date Title
KR1020030026148A KR100974448B1 (ko) 2003-04-24 2003-04-24 광디스크의 복사 방지 정보 관리방법
BRPI0409693-2A BRPI0409693A (pt) 2003-04-24 2004-04-24 método para gerenciamento de informação de proteção de cópia de meio de gravação
JP2006507822A JP2006526244A (ja) 2003-04-24 2004-04-24 記録媒体の複写防止情報管理方法
PCT/KR2004/000952 WO2004095162A2 (en) 2003-04-24 2004-04-24 Method for managing copy protection information of recording medium
CNB2004800108913A CN100385521C (zh) 2003-04-24 2004-04-24 用于管理记录介质的复制保护信息的方法
EP04729378A EP1623414A4 (en) 2003-04-24 2004-04-24 METHOD OF MANAGING COPYRIGHT PROTECTING INFORMATION OF RECORDING MEDIUM
US10/831,127 US20040213111A1 (en) 2003-04-24 2004-04-26 Method for managing copy protection information of recording medium
US12/055,065 US20080175389A1 (en) 2003-04-24 2008-03-25 Method for managing copy protection information of recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020030026148A KR100974448B1 (ko) 2003-04-24 2003-04-24 광디스크의 복사 방지 정보 관리방법

Publications (2)

Publication Number Publication Date
KR20040092648A KR20040092648A (ko) 2004-11-04
KR100974448B1 true KR100974448B1 (ko) 2010-08-10

Family

ID=36143556

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020030026148A Expired - Fee Related KR100974448B1 (ko) 2003-04-24 2003-04-24 광디스크의 복사 방지 정보 관리방법

Country Status (7)

Country Link
US (2) US20040213111A1 (enExample)
EP (1) EP1623414A4 (enExample)
JP (1) JP2006526244A (enExample)
KR (1) KR100974448B1 (enExample)
CN (1) CN100385521C (enExample)
BR (1) BRPI0409693A (enExample)
WO (1) WO2004095162A2 (enExample)

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