WO2003009285A3 - Apparatus and method for reproducing user data - Google Patents

Apparatus and method for reproducing user data Download PDF

Info

Publication number
WO2003009285A3
WO2003009285A3 PCT/IB2002/002548 IB0202548W WO03009285A3 WO 2003009285 A3 WO2003009285 A3 WO 2003009285A3 IB 0202548 W IB0202548 W IB 0202548W WO 03009285 A3 WO03009285 A3 WO 03009285A3
Authority
WO
WIPO (PCT)
Prior art keywords
data
user data
recording medium
key
reproducing
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/IB2002/002548
Other languages
French (fr)
Other versions
WO2003009285A2 (en
Inventor
Franciscus L A J Kamperman
Antonius A M Staring
Johan P M G Linnartz
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Priority to DE60215016T priority Critical patent/DE60215016T2/en
Priority to JP2003514548A priority patent/JP2004522252A/en
Priority to EP02738553A priority patent/EP1412943B1/en
Publication of WO2003009285A2 publication Critical patent/WO2003009285A2/en
Publication of WO2003009285A3 publication Critical patent/WO2003009285A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • G11B20/00166—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised contents recorded on or reproduced from a record carrier, e.g. music or software
    • G11B20/00173—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised contents recorded on or reproduced from a record carrier, e.g. music or software wherein the origin of the content is checked, e.g. determining whether the content has originally been retrieved from a legal disc copy or another trusted source
    • 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
    • G11B20/00217—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
    • G11B20/00275—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 stored on a chip attached to 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
    • G11B20/00449—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 content scrambling system [CSS]
    • 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
    • G11B20/00478—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 wherein contents are decrypted and re-encrypted with a different key when being copied from/to 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
    • G11B20/00485—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Storage Device Security (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

The invention relates to an apparatus and a method for reproducing user data stored in encrypted form on a recording medium. In order to provide a higher level of protection against hacking of user data and, in particular, of decryption keys, which are used for encrypting said user data and which are also stored on the recording medium, an apparatus is proposed according to the invention, comprising:- means for reading user data and key data from said recording medium, - an integrated unit including- means for calculating a decryption key using said key data, - means for decrypting user data read from said recording medium using said calculated decryption key, and - means for re-encrypting said decrypted data using a re-encryption key,- means for transmitting said re-encrypted data from said integrated unit to an application unit, and- an application unit for decrypting said re-encrypted data using said re-encryption key and for reproducing the decrypted data.
PCT/IB2002/002548 2001-07-19 2002-06-25 Apparatus and method for reproducing user data Ceased WO2003009285A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE60215016T DE60215016T2 (en) 2001-07-19 2002-06-25 Apparatus and method for playing back user data
JP2003514548A JP2004522252A (en) 2001-07-19 2002-06-25 Apparatus and method for reproducing user data
EP02738553A EP1412943B1 (en) 2001-07-19 2002-06-25 Apparatus and method for reproducing user data

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP01202770.2 2001-07-19
EP01202770 2001-07-19

Publications (2)

Publication Number Publication Date
WO2003009285A2 WO2003009285A2 (en) 2003-01-30
WO2003009285A3 true WO2003009285A3 (en) 2003-06-05

Family

ID=8180668

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/002548 Ceased WO2003009285A2 (en) 2001-07-19 2002-06-25 Apparatus and method for reproducing user data

Country Status (8)

Country Link
US (1) US7178038B2 (en)
EP (1) EP1412943B1 (en)
JP (1) JP2004522252A (en)
CN (1) CN1311456C (en)
AT (1) ATE341080T1 (en)
DE (1) DE60215016T2 (en)
TW (1) TWI229320B (en)
WO (1) WO2003009285A2 (en)

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JP2005523657A (en) * 2002-04-19 2005-08-04 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Conditional access system and apparatus
WO2003107670A1 (en) * 2002-06-12 2003-12-24 Koninklijke Philips Electronics N.V. Conditional access apparatus and method
US7930537B2 (en) 2002-08-13 2011-04-19 Nokia Corporation Architecture for encrypted application installation
CN100367144C (en) * 2003-02-03 2008-02-06 诺基亚有限公司 Structure for encrypted application installation
KR101094857B1 (en) * 2003-03-14 2011-12-16 코닌클리케 필립스 일렉트로닉스 엔.브이. Protected return pass from digital rights management dongle
KR20060031846A (en) * 2003-07-04 2006-04-13 코닌클리케 필립스 일렉트로닉스 엔.브이. Copy-protected software execution device
ES2268296T3 (en) * 2003-09-03 2007-03-16 France Telecom SYSTEM AND METHOD FOR PROVIDING SECURE COMMUNICATIONS BASED ON SMART CARDS.
JP4692003B2 (en) * 2005-02-10 2011-06-01 ソニー株式会社 Information processing apparatus, information processing method, and computer program
US8832458B2 (en) 2005-03-22 2014-09-09 Seagate Technology Llc Data transcription in a data storage device
US8325571B2 (en) 2005-09-29 2012-12-04 Paul Cappello Video jukebox apparatus and a method of playing music and music videos using a video jukebox appartus
US20080144821A1 (en) * 2006-10-26 2008-06-19 Marvell International Ltd. Secure video distribution
WO2012072772A1 (en) * 2010-12-02 2012-06-07 Nagravision S.A. System and method to record encrypted content with access conditions
JP5367039B2 (en) 2011-09-30 2013-12-11 株式会社東芝 Server apparatus and program
JP5395938B1 (en) * 2012-09-25 2014-01-22 株式会社東芝 Cooperation service providing system and server device
US11671251B1 (en) 2019-11-29 2023-06-06 Amazon Technologies, Inc. Application programming interface to generate data key pairs
US11626985B1 (en) * 2019-11-29 2023-04-11 Amazon Technologies, Inc. Data reencryption techniques

Citations (1)

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Publication number Priority date Publication date Assignee Title
EP0978839A1 (en) * 1998-08-05 2000-02-09 Hewlett-Packard Company Media content protection utilizing public key cryptography

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US5191611A (en) * 1989-04-03 1993-03-02 Lang Gerald S Method and apparatus for protecting material on storage media and for transferring material on storage media to various recipients
US6850252B1 (en) * 1999-10-05 2005-02-01 Steven M. Hoffberg Intelligent electronic appliance system and method
US5513260A (en) * 1994-06-29 1996-04-30 Macrovision Corporation Method and apparatus for copy protection for various recording media
US5740246A (en) * 1994-12-13 1998-04-14 Mitsubishi Corporation Crypt key system
EP0715241B1 (en) * 1994-10-27 2004-01-14 Mitsubishi Corporation Apparatus for data copyright management system
AU702649B2 (en) * 1995-05-12 1999-02-25 Rovi Solutions Corporation Video media security and tracking system
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Patent Citations (1)

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EP0978839A1 (en) * 1998-08-05 2000-02-09 Hewlett-Packard Company Media content protection utilizing public key cryptography

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
JP2004522252A (en) 2004-07-22
WO2003009285A2 (en) 2003-01-30
DE60215016T2 (en) 2007-05-03
US20030021420A1 (en) 2003-01-30
TWI229320B (en) 2005-03-11
US7178038B2 (en) 2007-02-13
CN1533569A (en) 2004-09-29
ATE341080T1 (en) 2006-10-15
EP1412943B1 (en) 2006-09-27
CN1311456C (en) 2007-04-18
DE60215016D1 (en) 2006-11-09
EP1412943A2 (en) 2004-04-28

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