EP1839307A4 - Recording medium, apparatus for decrypting data and method thereof - Google Patents

Recording medium, apparatus for decrypting data and method thereof

Info

Publication number
EP1839307A4
EP1839307A4 EP06700313A EP06700313A EP1839307A4 EP 1839307 A4 EP1839307 A4 EP 1839307A4 EP 06700313 A EP06700313 A EP 06700313A EP 06700313 A EP06700313 A EP 06700313A EP 1839307 A4 EP1839307 A4 EP 1839307A4
Authority
EP
European Patent Office
Prior art keywords
recording medium
decrypting data
decrypting
data
recording
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.)
Withdrawn
Application number
EP06700313A
Other languages
German (de)
French (fr)
Other versions
EP1839307A2 (en
Inventor
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 KR1020050109694A external-priority patent/KR101147763B1/en
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1839307A2 publication Critical patent/EP1839307A2/en
Publication of EP1839307A4 publication Critical patent/EP1839307A4/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • 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
    • G11B20/00224—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 remote server
    • 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
    • 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
    • G11B20/0021—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
    • G11B20/00536—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 encrypted content data is subjected to a further, iterated encryption, e.g. interwoven encryption
    • 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
    • G11B20/00681—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access
    • G11B20/00695—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which prevent a specific kind of data access said measures preventing that data are read from the recording medium
    • 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
    • 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
    • G11B27/32—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 on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327—Table of contents
    • G11B27/329—Table of contents on a disc [VTOC]
    • 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
    • G11B27/34—Indicating arrangements 
    • 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
    • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1288—Formatting by padding empty spaces with dummy data, e.g. writing zeroes or random data when de-icing optical 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
    • G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/213—Read-only 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
    • G11B2220/2541—Blu-ray discs; Blue laser DVR discs
EP06700313A 2005-01-19 2006-01-04 Recording medium, apparatus for decrypting data and method thereof Withdrawn EP1839307A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US64458805P 2005-01-19 2005-01-19
KR1020050109694A KR101147763B1 (en) 2005-01-19 2005-11-16 Data decryption method and apparatus, recoding medium comprising encrypted data
PCT/KR2006/000031 WO2006078100A2 (en) 2005-01-19 2006-01-04 Recording medium, apparatus for decrypting data and method thereof

Publications (2)

Publication Number Publication Date
EP1839307A2 EP1839307A2 (en) 2007-10-03
EP1839307A4 true EP1839307A4 (en) 2010-01-27

Family

ID=36692640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06700313A Withdrawn EP1839307A4 (en) 2005-01-19 2006-01-04 Recording medium, apparatus for decrypting data and method thereof

Country Status (2)

Country Link
EP (1) EP1839307A4 (en)
WO (1) WO2006078100A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015136964A1 (en) * 2014-03-14 2015-09-17 オムロン株式会社 License information management device, license information management method, and program

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996011446A2 (en) * 1994-10-10 1996-04-18 Philips Electronics N.V. Database system with local information remotely supported with dynamic information
US20020076204A1 (en) * 2000-12-18 2002-06-20 Toshihisa Nakano Key management device/method/program, recording medium, reproducing device/method, recording device, and computer-readable, second recording medium storing the key management program for copyright protection
US20020159592A1 (en) * 2000-05-11 2002-10-31 Hideki Matsushima Content reception terminal and recording medium
US20030072453A1 (en) * 2001-10-12 2003-04-17 Kelly Declan Patrick Secure content distribution method and system
EP1538621A1 (en) * 2003-11-06 2005-06-08 Sony Corporation Information processing apparatus, information recording medium, information processing method and computer program
WO2005074187A1 (en) * 2004-01-29 2005-08-11 Sony Corporation Information processing device and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002374244A (en) * 2001-06-13 2002-12-26 Kenwood Corp Information distribution method
JP2004087063A (en) * 2002-07-02 2004-03-18 Sony Corp Data recording medium, medium information recording method, medium information recording device, medium information reproducing method, medium information reproducing device, information service method, and information service system
WO2004114303A1 (en) * 2003-06-18 2004-12-29 Matsushita Electric Industrial Co., Ltd. Playback apparatus, playback method, and program for reproducing an encrypted virtual package

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996011446A2 (en) * 1994-10-10 1996-04-18 Philips Electronics N.V. Database system with local information remotely supported with dynamic information
US20020159592A1 (en) * 2000-05-11 2002-10-31 Hideki Matsushima Content reception terminal and recording medium
US20020076204A1 (en) * 2000-12-18 2002-06-20 Toshihisa Nakano Key management device/method/program, recording medium, reproducing device/method, recording device, and computer-readable, second recording medium storing the key management program for copyright protection
US20030072453A1 (en) * 2001-10-12 2003-04-17 Kelly Declan Patrick Secure content distribution method and system
EP1538621A1 (en) * 2003-11-06 2005-06-08 Sony Corporation Information processing apparatus, information recording medium, information processing method and computer program
WO2005074187A1 (en) * 2004-01-29 2005-08-11 Sony Corporation Information processing device and method
EP1710950A1 (en) * 2004-01-29 2006-10-11 Sony Corporation Information processing device and method

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
BLU-RAY DISC FOUNDERS: "White paper Blu-ray Disc Format 2. A logical and audio visual application format specifications for BD-RE", INTERNET CITATION, August 2004 (2004-08-01), XP002480404, Retrieved from the Internet <URL:http://wwww.hi-def.ru/file_download/5> [retrieved on 20080515] *
INTEL CONRPORATION: "Content Protection for Recordable Media Specification - Network Download Book", CONTENT PROTECTION FOR RECORDABLE MEDIA SPECIFICATION, XX, XX, no. REVISION 0.90, 5 August 2004 (2004-08-05), pages complete - 21, XP002379489 *
INTEL CORPORATION ET AL: "Advanced Access Content System (AACS). Technical Overview (informative)", INTERNET CITATION, 21 July 2004 (2004-07-21), pages 32pp, XP007910652, Retrieved from the Internet <URL:http://www.aacsla.com/marketplace/evaluating/aacs_technical_overview_ 040721.pdf> [retrieved on 20090316] *
TAYLOR J ED - TAYLOR J: "DVD demystified, PASSAGE", DVD DEMYSTIFIED (SECOND EDITION), NEW YORK : MCGRAW-HILL, US, 1 January 2001 (2001-01-01), pages 254 - 257, XP002319697, ISBN: 978-0-07-135026-6 *

Also Published As

Publication number Publication date
WO2006078100A3 (en) 2006-11-23
EP1839307A2 (en) 2007-10-03
WO2006078100A2 (en) 2006-07-27

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A4 Supplementary search report drawn up and despatched

Effective date: 20091229

RIC1 Information provided on ipc code assigned before grant

Ipc: G11B 20/00 20060101AFI20091221BHEP

Ipc: G06F 21/00 20060101ALI20091221BHEP

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Effective date: 20140513

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