BR0202591A - Sistema de proteção de obra digital, dispositivo de gravação/reprodução, dispositivo de meio de gravação, e dispositivo de mudança de modelo - Google Patents

Sistema de proteção de obra digital, dispositivo de gravação/reprodução, dispositivo de meio de gravação, e dispositivo de mudança de modelo

Info

Publication number
BR0202591A
BR0202591A BR0202591-4A BR0202591A BR0202591A BR 0202591 A BR0202591 A BR 0202591A BR 0202591 A BR0202591 A BR 0202591A BR 0202591 A BR0202591 A BR 0202591A
Authority
BR
Brazil
Prior art keywords
unique information
storage unit
record
unit operable
read
Prior art date
Application number
BR0202591-4A
Other languages
English (en)
Inventor
Shunji Harada
Masaya Miyazaki
Shinichi Matsui
Shinji Inoue
Natsume Matsuzaki
Naohiko Noguchi
Original Assignee
Matsushita Electric Ind Co Ltd
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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of BR0202591A publication Critical patent/BR0202591A/pt

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • 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]
    • G06F21/101—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM] by binding digital rights to specific entities
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
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    • 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]
    • G06F21/101—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM] by binding digital rights to specific entities
    • G06F21/1011—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM] by binding digital rights to specific entities to devices
    • G—PHYSICS
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    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/44—Program or device authentication
    • G06F21/445—Program or device authentication by mutual authentication, e.g. between devices or programs
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    • 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
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    • 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
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    • 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
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet
    • 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
    • H04N21/81—Monomedia components thereof
    • H04N21/8106—Monomedia components thereof involving special audio data, e.g. different tracks for different languages
    • H04N21/8113—Monomedia components thereof involving special audio data, e.g. different tracks for different languages comprising music, e.g. song in MP3 format
    • 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
    • H04N21/8352—Generation of protective data, e.g. certificates involving content or source identification data, e.g. Unique Material Identifier [UMID]
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • H04W12/033—Protecting confidentiality, e.g. by encryption of the user plane, e.g. user's traffic
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/60—Solid state media
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
    • H04L2463/101—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying security measures for digital rights management

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • Databases & Information Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Technology Law (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Physics (AREA)
  • Storage Device Security (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Telephonic Communication Services (AREA)

Abstract

"SISTEMA DE PROTEçãO DE OBRA DIGITAL, DISPOSITIVO DE GRAVAçãO/REPRODUçãO, DISPOSITIVO DE MEIO DE GRAVAçãO, E DISPOSITIVO DE MUDANçA DE MODELO". é descrito um sistema composto de um dispositivo principal e um dispositivo de meio de gravação. O dispositivo principal inclui: uma unidade de recepção que recebe uma obra digital de um servidor de distribuição externo; uma área de armazenamento interna para armazenar a obra digital; uma unidade de reprodução que reproduz a obra digital; uma área de armazenamento de informações únicas para armazenar as informações que são únicas para o dispositivo principal; uma unidade de criptografia que criptografa a obra digital utilizando as informações únicas; uma unidade de decifração que decifra, utilizando as informações únicas, a obra digital criptografada que foi lida do dispositivo de meio de gravação; uma unidade de gravação que grava a obra digital criptografada no dispositivo de meio de gravação o qual é portátil; e uma unidade de leitura que lê a obra digital criptografada do dispositivo de meio de gravação.
BR0202591-4A 2001-07-09 2002-07-09 Sistema de proteção de obra digital, dispositivo de gravação/reprodução, dispositivo de meio de gravação, e dispositivo de mudança de modelo BR0202591A (pt)

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US (2) US7698571B2 (pt)
EP (3) EP1422709B1 (pt)
KR (1) KR100939861B1 (pt)
CN (2) CN1822012A (pt)
AT (2) ATE330314T1 (pt)
BR (1) BR0202591A (pt)
DE (2) DE60224480T2 (pt)
MY (1) MY138856A (pt)
SG (1) SG106075A1 (pt)
TW (1) TWI308306B (pt)

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DE60224480T2 (de) 2008-05-21
EP1422709B1 (en) 2006-06-14
CN1396596A (zh) 2003-02-12
EP1422709A3 (en) 2004-08-25
SG106075A1 (en) 2004-09-30
ATE330314T1 (de) 2006-07-15
MY138856A (en) 2009-08-28
DE60212408T2 (de) 2006-11-16
EP1667144A2 (en) 2006-06-07
EP1667144A3 (en) 2013-12-11
DE60224480D1 (de) 2008-02-21
EP1422709A2 (en) 2004-05-26
CN1822012A (zh) 2006-08-23
US20070083772A1 (en) 2007-04-12
EP1280149B1 (en) 2008-01-09
ATE383644T1 (de) 2008-01-15
CN1253882C (zh) 2006-04-26
KR100939861B1 (ko) 2010-01-29
US7694155B2 (en) 2010-04-06
KR20030007074A (ko) 2003-01-23
DE60212408D1 (de) 2006-07-27
EP1280149A2 (en) 2003-01-29
EP1280149A3 (en) 2003-03-05
US20030007640A1 (en) 2003-01-09
TWI308306B (en) 2009-04-01

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