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AU2001261050A1 - Cryptographic key distribution system and method for digital video systems - Google Patents

Cryptographic key distribution system and method for digital video systems

Info

Publication number
AU2001261050A1
AU2001261050A1 AU2001261050A AU6105001A AU2001261050A1 AU 2001261050 A1 AU2001261050 A1 AU 2001261050A1 AU 2001261050 A AU2001261050 A AU 2001261050A AU 6105001 A AU6105001 A AU 6105001A AU 2001261050 A1 AU2001261050 A1 AU 2001261050A1
Authority
AU
Australia
Prior art keywords
digital video
distribution system
cryptographic key
key distribution
video systems
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.)
Abandoned
Application number
AU2001261050A
Inventor
Erlend Olson
Steven Petilli
David Rogoff
Oleh Zajac
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.)
Broadcom Corp
Original Assignee
Broadcom Corp
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 Broadcom Corp filed Critical Broadcom Corp
Publication of AU2001261050A1 publication Critical patent/AU2001261050A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H04N21/454—Content or additional data filtering, e.g. blocking advertisements
    • 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
    • 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
    • H04N21/4508—Management of client data or end-user data
    • H04N21/4516—Management of client data or end-user data involving client characteristics, e.g. Set-Top-Box type, software version or amount of memory available
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H04N5/85—Television signal recording using optical recording on discs or drums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
AU2001261050A 2000-04-28 2001-04-27 Cryptographic key distribution system and method for digital video systems Abandoned AU2001261050A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US20019400P 2000-04-28 2000-04-28
US60200194 2000-04-28
PCT/US2001/013423 WO2001084836A2 (en) 2000-04-28 2001-04-27 Cryptographic key distribution system and method for digital video systems

Publications (1)

Publication Number Publication Date
AU2001261050A1 true AU2001261050A1 (en) 2001-11-12

Family

ID=22740699

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001261050A Abandoned AU2001261050A1 (en) 2000-04-28 2001-04-27 Cryptographic key distribution system and method for digital video systems

Country Status (4)

Country Link
US (1) US20020003878A1 (en)
EP (1) EP1279283A2 (en)
AU (1) AU2001261050A1 (en)
WO (1) WO2001084836A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020037081A1 (en) * 2000-04-28 2002-03-28 David Rogoff Cryptographic key distribution system and method for digital video systems
US20020141577A1 (en) * 2001-03-29 2002-10-03 Ripley Michael S. Method and system for providing bus encryption based on cryptographic key exchange
EP1449321A2 (en) * 2001-09-19 2004-08-25 Koninklijke Philips Electronics N.V. Fingerprint, control signal for new encryption key
US20030079133A1 (en) * 2001-10-18 2003-04-24 International Business Machines Corporation Method and system for digital rights management in content distribution application
US8656178B2 (en) * 2002-04-18 2014-02-18 International Business Machines Corporation Method, system and program product for modifying content usage conditions during content distribution
KR100474490B1 (en) * 2002-08-29 2005-03-10 삼성전자주식회사 Apparatus for output of audig/video signal, and method thereof
US20060078126A1 (en) * 2004-10-08 2006-04-13 Philip Cacayorin Floating vector scrambling methods and apparatus
US20090136038A1 (en) * 2007-11-27 2009-05-28 Ememory Technology Inc. Apparatus for receiving encrypted digital data and cryptographic key storage unit thereof

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2195478B (en) * 1986-09-24 1990-06-13 Ncr Co Security device for sensitive data
GB2205667B (en) * 1987-06-12 1991-11-06 Ncr Co Method of controlling the operation of security modules
US5237610A (en) * 1990-02-01 1993-08-17 Scientific-Atlanta, Inc. Independent external security module for a digitally upgradeable television signal decoder
US6789197B1 (en) * 1994-10-27 2004-09-07 Mitsubishi Corporation Apparatus for data copyright management system
US6577734B1 (en) * 1995-10-31 2003-06-10 Lucent Technologies Inc. Data encryption key management system
JP3176030B2 (en) * 1996-01-08 2001-06-11 株式会社東芝 Copy control method and copy control device
US5915018A (en) * 1996-11-05 1999-06-22 Intel Corporation Key management system for DVD copyright management
US5818939A (en) * 1996-12-18 1998-10-06 Intel Corporation Optimized security functionality in an electronic system
US6101255A (en) * 1997-04-30 2000-08-08 Motorola, Inc. Programmable cryptographic processing system and method
US5923754A (en) * 1997-05-02 1999-07-13 Compaq Computer Corporation Copy protection for recorded media
US6223285B1 (en) * 1997-10-24 2001-04-24 Sony Corporation Of Japan Method and system for transferring information using an encryption mode indicator
EP0994599A4 (en) * 1998-04-01 2009-06-03 Panasonic Corp DATA TRANSMITTING / RECEIVING METHOD, DATA TRANSMITTER, DATA RECEIVER, DATA TRANSMITTING / RECEIVING SYSTEM, AUDIOVISUAL CONTENT TRANSMITTING METHOD, AUDIOVISUAL CONTENT RECEIVING METHOD, AUDIOVISUAL CONTENT TRANSMITTER, AUDIOVISUAL CONTENT RECEIVER , AND RECORD SUPPORT
MY132414A (en) * 1998-04-14 2007-10-31 Hitachi Ltd Reproducing apparatus, recording apparatus and display apparatus
JP3951464B2 (en) * 1998-07-28 2007-08-01 株式会社日立製作所 Digital signal processor
US6229895B1 (en) * 1999-03-12 2001-05-08 Diva Systems Corp. Secure distribution of video on-demand
US6590981B2 (en) * 2000-02-22 2003-07-08 Zyfer, Inc. System and method for secure cryptographic communications
US6845450B1 (en) * 2000-02-25 2005-01-18 Genesis Microchip Inc. Display unit storing and using a cryptography key
EP1134977A1 (en) * 2000-03-06 2001-09-19 Irdeto Access B.V. Method and system for providing copies of scrambled content with unique watermarks, and system for descrambling scrambled content
US6985591B2 (en) * 2001-06-29 2006-01-10 Intel Corporation Method and apparatus for distributing keys for decrypting and re-encrypting publicly distributed media

Also Published As

Publication number Publication date
EP1279283A2 (en) 2003-01-29
WO2001084836A3 (en) 2002-04-04
US20020003878A1 (en) 2002-01-10
WO2001084836A2 (en) 2001-11-08

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