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WO2000004549A3 - Copy protection by ticket encryption - Google Patents

Copy protection by ticket encryption Download PDF

Info

Publication number
WO2000004549A3
WO2000004549A3 PCT/EP1999/004766 EP9904766W WO0004549A3 WO 2000004549 A3 WO2000004549 A3 WO 2000004549A3 EP 9904766 W EP9904766 W EP 9904766W WO 0004549 A3 WO0004549 A3 WO 0004549A3
Authority
WO
WIPO (PCT)
Prior art keywords
devices
channel
encryption
copy protection
authenticity
Prior art date
Application number
PCT/EP1999/004766
Other languages
French (fr)
Other versions
WO2000004549A2 (en
Inventor
Michael A Epstein
Original Assignee
Koninkl 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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Priority to KR1020007002682A priority Critical patent/KR20010023967A/en
Priority to EP99932846A priority patent/EP1145243A3/en
Priority to JP2000560583A priority patent/JP2002520682A/en
Publication of WO2000004549A2 publication Critical patent/WO2000004549A2/en
Publication of WO2000004549A3 publication Critical patent/WO2000004549A3/en

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
    • G11B20/00884—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
    • G11B20/00898—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm based on a hash function
    • 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
    • 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
    • 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
    • G11B20/00485—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
    • G11B20/00557—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 further management data is encrypted, e.g. sector headers, TOC or the lead-in or lead-out areas
    • 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
    • G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
    • G11B20/00746—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number
    • G11B20/00753—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags
    • 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
    • G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
    • G11B20/00746—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number
    • G11B20/00811—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein said number is encoded as a cryptographic token or ticket
    • 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
    • G11B20/00884—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
    • 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
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0838—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these
    • H04L9/0841—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these involving Diffie-Hellman or related key agreement protocols
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2107—File encryption
    • 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
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91328—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a copy management signal, e.g. a copy generation management signal [CGMS]
    • 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
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91335—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a watermark

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Multimedia (AREA)
  • Technology Law (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

An encryption scheme is provided between a device that communicates material content and the intended receiver of this content. The encryption is applied to a ticket that conveys copy and display rights. To allow for the portability of devices, the encryption scheme in a preferred embodiment is dynamic. At any point in time, the channel between the providing device and the receiving device is configured for the exclusive use of these two devices; thereafter, the channel may be configured for the exclusive use of another set of devices. To prevent the use of non-conforming devices within the system, conforming devices contain verifiable certificates of authenticity, and channels are established when each device on the channel verifies the other device's authenticity.
PCT/EP1999/004766 1998-07-14 1999-07-07 Copy protection by ticket encryption WO2000004549A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020007002682A KR20010023967A (en) 1998-07-14 1999-07-07 Copy protection by ticket encryption
EP99932846A EP1145243A3 (en) 1998-07-14 1999-07-07 Copy protection by message encryption
JP2000560583A JP2002520682A (en) 1998-07-14 1999-07-07 Copy protection with ticket encryption

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US9272798P 1998-07-14 1998-07-14
US60/092,727 1998-07-14
US33362899A 1999-06-15 1999-06-15
US09/333,628 1999-06-15

Publications (2)

Publication Number Publication Date
WO2000004549A2 WO2000004549A2 (en) 2000-01-27
WO2000004549A3 true WO2000004549A3 (en) 2001-06-07

Family

ID=26785979

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/004766 WO2000004549A2 (en) 1998-07-14 1999-07-07 Copy protection by ticket encryption

Country Status (5)

Country Link
EP (1) EP1145243A3 (en)
KR (1) KR20010023967A (en)
CN (1) CN1333975A (en)
TW (1) TW406249B (en)
WO (1) WO2000004549A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8171520B2 (en) 2000-03-02 2012-05-01 Tivo Inc. Method of sharing personal media using a digital recorder
US7908635B2 (en) 2000-03-02 2011-03-15 Tivo Inc. System and method for internet access to a personal television service
US8812850B2 (en) 2000-03-02 2014-08-19 Tivo Inc. Secure multimedia transfer system
US8261315B2 (en) 2000-03-02 2012-09-04 Tivo Inc. Multicasting multimedia content distribution system
US20020166056A1 (en) * 2001-05-04 2002-11-07 Johnson William C. Hopscotch ticketing
CN100364332C (en) * 2004-09-01 2008-01-23 华为技术有限公司 Method for protecting broadband video-audio broadcasting content
CN100356789C (en) * 2004-09-01 2007-12-19 华为技术有限公司 Method and device for protecting broadband audio-video broadcasting content
US7895633B2 (en) 2004-11-19 2011-02-22 Tivo Inc. Method and apparatus for secure transfer and playback of multimedia content
JP4140624B2 (en) * 2005-09-16 2008-08-27 ソニー株式会社 Information processing apparatus, information recording medium manufacturing apparatus, information recording medium and method, and computer program
CN101052068B (en) 2006-04-03 2011-04-06 华为技术有限公司 Device and method for providing wet current
JP5562645B2 (en) * 2006-12-11 2014-07-30 トムソン ライセンシング Text-based piracy prevention system and method for digital cinema

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0716544A2 (en) * 1994-12-08 1996-06-12 Lg Electronics Inc. Copy prevention method and apparatus of a digital magnetic recording/reproduction system
US5574787A (en) * 1994-07-25 1996-11-12 Ryan; John O. Apparatus and method for comprehensive copy protection for video platforms and unprotected source material
EP0750423A2 (en) * 1995-06-23 1996-12-27 Irdeto B.V. Method and apparatus for controlling the operation of a signal decoder in a broadcasting system
EP0800312A1 (en) * 1995-10-09 1997-10-08 Matsushita Electric Industrial Co., Ltd. Data transmitter, data transmitting method, data receiver, information processor, and information recording medium
WO1997043853A1 (en) * 1996-05-15 1997-11-20 Macrovision Corporation Method and apparatus for copy protection of copyrighted material on various recording media
WO1998033325A2 (en) * 1997-01-27 1998-07-30 Koninklijke Philips Electronics N.V. Method and system for transferring content information and supplemental information relating thereto
WO1999011064A2 (en) * 1997-08-26 1999-03-04 Koninklijke Philips Electronics N.V. System for transferring content information and supplemental information relating thereto

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5574787A (en) * 1994-07-25 1996-11-12 Ryan; John O. Apparatus and method for comprehensive copy protection for video platforms and unprotected source material
EP0716544A2 (en) * 1994-12-08 1996-06-12 Lg Electronics Inc. Copy prevention method and apparatus of a digital magnetic recording/reproduction system
EP0750423A2 (en) * 1995-06-23 1996-12-27 Irdeto B.V. Method and apparatus for controlling the operation of a signal decoder in a broadcasting system
EP0800312A1 (en) * 1995-10-09 1997-10-08 Matsushita Electric Industrial Co., Ltd. Data transmitter, data transmitting method, data receiver, information processor, and information recording medium
WO1997043853A1 (en) * 1996-05-15 1997-11-20 Macrovision Corporation Method and apparatus for copy protection of copyrighted material on various recording media
WO1998033325A2 (en) * 1997-01-27 1998-07-30 Koninklijke Philips Electronics N.V. Method and system for transferring content information and supplemental information relating thereto
WO1999011064A2 (en) * 1997-08-26 1999-03-04 Koninklijke Philips Electronics N.V. System for transferring content information and supplemental information relating thereto

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
INGEMARSSON I ET AL: "A conference key distribution system", IEEE TRANSACTIONS ON INFORMATION THEORY, SEPT. 1982, USA, vol. 28, no. 5, pt.1, pages 714 - 720, XP002121757, ISSN: 0018-9448 *
LINNARTZ J-P, DEPOVER G, KALKER T: "Philips Electronics response to call for proposals issued by the Data Hiding Subgroup copy protection technical working group", 1997, XP002118336 *

Also Published As

Publication number Publication date
KR20010023967A (en) 2001-03-26
CN1333975A (en) 2002-01-30
WO2000004549A2 (en) 2000-01-27
EP1145243A3 (en) 2004-11-03
EP1145243A2 (en) 2001-10-17
TW406249B (en) 2000-09-21

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