DE602006017798D1 - System und Verfahren zur Steuerung des Zugriffs auf geschützten digitalen Inhalt durch Verifizierung eines Medienschlüsselblocks - Google Patents

System und Verfahren zur Steuerung des Zugriffs auf geschützten digitalen Inhalt durch Verifizierung eines Medienschlüsselblocks

Info

Publication number
DE602006017798D1
DE602006017798D1 DE602006017798T DE602006017798T DE602006017798D1 DE 602006017798 D1 DE602006017798 D1 DE 602006017798D1 DE 602006017798 T DE602006017798 T DE 602006017798T DE 602006017798 T DE602006017798 T DE 602006017798T DE 602006017798 D1 DE602006017798 D1 DE 602006017798D1
Authority
DE
Germany
Prior art keywords
mkb
medium
recorder
stored
writes
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.)
Active
Application number
DE602006017798T
Other languages
German (de)
English (en)
Inventor
Jeffrey Bruce Lotspiech
Scott Frazier Watson
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.)
International Business Machines Corp
Walt Disney Co
Original Assignee
International Business Machines Corp
Walt Disney Co
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 International Business Machines Corp, Walt Disney Co filed Critical International Business Machines Corp
Publication of DE602006017798D1 publication Critical patent/DE602006017798D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • G11B20/0042—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4334—Recording operations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4627—Rights management associated to the content
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • H04N21/8355—Generation of protective data, e.g. certificates involving usage data, e.g. number of copies or viewings allowed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Storage Device Security (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
DE602006017798T 2005-01-11 2006-01-09 System und Verfahren zur Steuerung des Zugriffs auf geschützten digitalen Inhalt durch Verifizierung eines Medienschlüsselblocks Active DE602006017798D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/905,570 US7971070B2 (en) 2005-01-11 2005-01-11 Read/write media key block
PCT/EP2006/050099 WO2006074987A2 (en) 2005-01-11 2006-01-09 System and method for controlling acces to protected digital content by verification of a media key block

Publications (1)

Publication Number Publication Date
DE602006017798D1 true DE602006017798D1 (de) 2010-12-09

Family

ID=36588886

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006017798T Active DE602006017798D1 (de) 2005-01-11 2006-01-09 System und Verfahren zur Steuerung des Zugriffs auf geschützten digitalen Inhalt durch Verifizierung eines Medienschlüsselblocks

Country Status (9)

Country Link
US (1) US7971070B2 (enExample)
EP (1) EP1839404B1 (enExample)
JP (1) JP4824037B2 (enExample)
CN (1) CN101103585B (enExample)
AT (1) ATE486421T1 (enExample)
CA (1) CA2594760A1 (enExample)
DE (1) DE602006017798D1 (enExample)
TW (1) TWI369886B (enExample)
WO (1) WO2006074987A2 (enExample)

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JP4768523B2 (ja) * 2006-06-12 2011-09-07 株式会社東芝 情報記録再生装置及び方法
JP2007336197A (ja) * 2006-06-14 2007-12-27 Toshiba Corp 情報アクセス管理方法および装置
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US8661527B2 (en) 2011-08-31 2014-02-25 Kabushiki Kaisha Toshiba Authenticator, authenticatee and authentication method
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JP5100884B1 (ja) 2011-12-02 2012-12-19 株式会社東芝 メモリ装置
JP5112555B1 (ja) 2011-12-02 2013-01-09 株式会社東芝 メモリカード、ストレージメディア、及びコントローラ
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Also Published As

Publication number Publication date
TW200637319A (en) 2006-10-16
JP2008527816A (ja) 2008-07-24
JP4824037B2 (ja) 2011-11-24
CA2594760A1 (en) 2006-07-20
US7971070B2 (en) 2011-06-28
US20060153378A1 (en) 2006-07-13
EP1839404A2 (en) 2007-10-03
ATE486421T1 (de) 2010-11-15
WO2006074987A3 (en) 2006-12-28
TWI369886B (en) 2012-08-01
WO2006074987A2 (en) 2006-07-20
CN101103585B (zh) 2012-07-18
CN101103585A (zh) 2008-01-09
EP1839404B1 (en) 2010-10-27

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