EP1825470A4 - Procede et dispositif pour ecrire et utiliser des cles servant a chiffrer/dechiffrer du contenu, et support d'enregistrement stockant les cles ecrites a l'aide du procede - Google Patents

Procede et dispositif pour ecrire et utiliser des cles servant a chiffrer/dechiffrer du contenu, et support d'enregistrement stockant les cles ecrites a l'aide du procede

Info

Publication number
EP1825470A4
EP1825470A4 EP05823731A EP05823731A EP1825470A4 EP 1825470 A4 EP1825470 A4 EP 1825470A4 EP 05823731 A EP05823731 A EP 05823731A EP 05823731 A EP05823731 A EP 05823731A EP 1825470 A4 EP1825470 A4 EP 1825470A4
Authority
EP
European Patent Office
Prior art keywords
data
encryption keys
recording medium
clips
continuous playback
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
EP05823731A
Other languages
German (de)
English (en)
Other versions
EP1825470A1 (fr
Inventor
Sung Wan Park
Byung Jin Kim
Kang Soo Seo
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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 claimed from KR1020050105754A external-priority patent/KR20060066627A/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1825470A1 publication Critical patent/EP1825470A1/fr
Publication of EP1825470A4 publication Critical patent/EP1825470A4/fr
Ceased legal-status Critical Current

Links

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
    • 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
    • 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
    • G11B20/0021—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
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Storage Device Security (AREA)

Abstract

Des données de chiffrement de contenu relatives à des données de contenu sont enregistrées sur un support d'enregistrement. Une pluralité de clés de chiffrement sont utilisées pour chiffrer ou déchiffrer une pluralité de fichiers séquences contenant des données de contenu, de sorte que chacune des clés de chiffrement sert à chiffrer ou à déchiffrer tout ou partie des données de chacun de la pluralité des fichiers séquences. Le procédé de chiffrement de l'invention permet de chiffrer des titres différents devant être chiffrés à l'aide de clés de chiffrement différentes lorsque certains segments de données sont partagés par de multiples titres.
EP05823731A 2004-12-13 2005-12-06 Procede et dispositif pour ecrire et utiliser des cles servant a chiffrer/dechiffrer du contenu, et support d'enregistrement stockant les cles ecrites a l'aide du procede Ceased EP1825470A4 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US63499804P 2004-12-13 2004-12-13
US63833204P 2004-12-23 2004-12-23
KR1020050105754A KR20060066627A (ko) 2004-12-13 2005-11-05 컨텐트의 암호/해독을 위한 키를 기록하고 사용하는 방법및 장치와 그 방법에 의해 키가 기록되어 있는 기록매체
PCT/KR2005/004146 WO2006065034A1 (fr) 2004-12-13 2005-12-06 Procede et dispositif pour ecrire et utiliser des cles servant a chiffrer/dechiffrer du contenu, et support d'enregistrement stockant les cles ecrites a l'aide du procede

Publications (2)

Publication Number Publication Date
EP1825470A1 EP1825470A1 (fr) 2007-08-29
EP1825470A4 true EP1825470A4 (fr) 2009-04-29

Family

ID=36588058

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05823731A Ceased EP1825470A4 (fr) 2004-12-13 2005-12-06 Procede et dispositif pour ecrire et utiliser des cles servant a chiffrer/dechiffrer du contenu, et support d'enregistrement stockant les cles ecrites a l'aide du procede

Country Status (2)

Country Link
EP (1) EP1825470A4 (fr)
WO (1) WO2006065034A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001015162A2 (fr) * 1999-08-13 2001-03-01 Microsoft Corporation Procedes et systemes de protection des contenus numeriques
JP2004005868A (ja) * 2002-04-01 2004-01-08 Sony Corp 再生方法および装置、記録方法および装置
EP1408686A1 (fr) * 2001-06-22 2004-04-14 Sony Corporation Dispositif et procede de transmission de donnees

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100692425B1 (ko) * 2001-09-28 2007-03-09 하이 덴시티 디바이시스 에이에스 대량 저장 장치의 암호화/복호화를 위한 방법 및 장치
KR100445406B1 (ko) * 2001-11-30 2004-08-25 주식회사 하이닉스반도체 데이터 암호화 장치 및 그 방법
JP2005056361A (ja) * 2003-08-07 2005-03-03 Sony Corp 情報処理装置および方法、プログラム、並びに記録媒体
JP4114605B2 (ja) * 2003-12-24 2008-07-09 ソニー株式会社 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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001015162A2 (fr) * 1999-08-13 2001-03-01 Microsoft Corporation Procedes et systemes de protection des contenus numeriques
EP1408686A1 (fr) * 2001-06-22 2004-04-14 Sony Corporation Dispositif et procede de transmission de donnees
JP2004005868A (ja) * 2002-04-01 2004-01-08 Sony Corp 再生方法および装置、記録方法および装置
EP1492114A1 (fr) * 2002-04-01 2004-12-29 Sony Corporation Procede et appareil de reproduction, et procede et appareil d'enregistrement

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BLU-RAY DISC: "White paper Blu-ray disc format - 2.A logical and audio visual application format specifications for BD-RE", INTERNET CITATION, 1 August 2004 (2004-08-01), pages 1 - 26, XP007904846, Retrieved from the Internet <URL:http://www.blurayjukebox.com/html/blu-ray_whitepapers.html> [retrieved on 20080530] *
See also references of WO2006065034A1 *

Also Published As

Publication number Publication date
EP1825470A1 (fr) 2007-08-29
WO2006065034A1 (fr) 2006-06-22

Similar Documents

Publication Publication Date Title
RU2416825C2 (ru) Способ для защиты контента на носителе записи и носитель записи, хранящий контент, защищенный этим способом
KR101299605B1 (ko) 정보 처리장치 및 방법, 및 기억매체
US7958375B2 (en) Recording medium, apparatus for decrypting data and method thereof
JP5310827B2 (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
US8494157B2 (en) Apparatus, method, and computer program for processing information and recording medium storing computer program
JP4784135B2 (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
US7003664B2 (en) Signal recording medium, content signal generation apparatus, content signal reproduction method, and content signal reproduction apparatus
US20060153381A1 (en) Method and apparatus for writing and using keys for encrypting/decrypting a content and a recording medium storing keys written by the method
CN100353430C (zh) 高密度光盘以及用于记录和再现其上的加密数据的方法
CN100359573C (zh) 高密度光盘以及用于记录和再现其上的加密数据的方法
US8438651B2 (en) Data reproducing method, data recording/ reproducing apparatus and data transmitting method
EP1825469A1 (fr) Procede et appareil destines a ecrire et utiliser des cles en vue du chiffrement/dechiffrement d&#39;un contenu et support d&#39;enregistrement permettant de stocker des cles ecrites au moyen de ce procede
US20060147045A1 (en) Method and apparatus for writing and using keys for encrypting/decrypting a content and a recording medium storing keys written by the method
CN101089984A (zh) 信息访问控制方法和装置
KR20080067075A (ko) 광디스크의 암호화 데이터 기록 및 재생방법
CN101120410A (zh) 写入和使用用于加密/解密内容的密钥的方法和设备以及存储用该方法写入的密钥的记录介质
EP1825470A1 (fr) Procede et dispositif pour ecrire et utiliser des cles servant a chiffrer/dechiffrer du contenu, et support d&#39;enregistrement stockant les cles ecrites a l&#39;aide du procede
CN101278347A (zh) 写入和使用对内容进行加密/解密的密钥的方法和装置以及存储由该方法写入的密钥的记录介质
WO2006065050A1 (fr) Procede de securisation de contenu sur un support d&#39;enregistrement et contenu de support d&#39;enregistrement securise par le procede
KR20030093860A (ko) 고밀도 재생 전용 광디스크와, 그 광디스크의 암호화 기록및 재생방법

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20070711

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SEO, KANG SOO

Inventor name: KIM, BYUNG JIN

Inventor name: PARK, SUNG WAN

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20090331

17Q First examination report despatched

Effective date: 20090709

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20100704