FR2871017A1 - Procede de diffusion de donnees numeriques a un parc de terminaux recepteurs cible - Google Patents

Procede de diffusion de donnees numeriques a un parc de terminaux recepteurs cible

Info

Publication number
FR2871017A1
FR2871017A1 FR0451064A FR0451064A FR2871017A1 FR 2871017 A1 FR2871017 A1 FR 2871017A1 FR 0451064 A FR0451064 A FR 0451064A FR 0451064 A FR0451064 A FR 0451064A FR 2871017 A1 FR2871017 A1 FR 2871017A1
Authority
FR
France
Prior art keywords
park
digital data
receiving terminals
diffusion
access control
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.)
Granted
Application number
FR0451064A
Other languages
English (en)
Other versions
FR2871017B1 (fr
Inventor
Frederic Beun
Laurence Boudier
Pierre Roque
Bruno Tronel
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.)
Viaccess SAS
Original Assignee
Viaccess SAS
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 Viaccess SAS filed Critical Viaccess SAS
Priority to FR0451064A priority Critical patent/FR2871017B1/fr
Priority to PCT/FR2005/050358 priority patent/WO2005120066A1/fr
Priority to EP05766645A priority patent/EP1749401A1/fr
Priority to CNA200580016924XA priority patent/CN101032167A/zh
Priority to US11/597,536 priority patent/US8259940B2/en
Priority to KR1020067024794A priority patent/KR101366812B1/ko
Publication of FR2871017A1 publication Critical patent/FR2871017A1/fr
Application granted granted Critical
Publication of FR2871017B1 publication Critical patent/FR2871017B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • 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
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
    • H04N21/23476—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption by partially encrypting, e.g. encrypting the ending portion of a movie
    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26606—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
    • 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
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
    • H04N21/44055—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption by partially decrypting, e.g. decrypting a video stream that has been partially encrypted
    • 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
    • H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Storage Device Security (AREA)

Abstract

L'invention concerne un procédé de diffusion de données numériques à un parc de terminaux récepteurs ciblé dans lequel lesdites données sont préalablement embrouillées par une suite de mots de contrôle transmis dans un message de contrôle d'accès conditionnel.Ce procédé comporte les étapes suivantes :à l'émission,- particulariser ledit message de contrôle d'accès par une fonction réversible F dont la fonction inverse F-1 est exécutable uniquement dans les terminaux du parc ciblé,et à la réception,- retrouver dans chaque terminal du parc ciblé le message de contrôle d'accès originel au moyen de ladite fonction inverse.
FR0451064A 2004-05-28 2004-05-28 Procede de diffusion de donnees numeriques a un parc de terminaux recepteurs cible Expired - Lifetime FR2871017B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR0451064A FR2871017B1 (fr) 2004-05-28 2004-05-28 Procede de diffusion de donnees numeriques a un parc de terminaux recepteurs cible
PCT/FR2005/050358 WO2005120066A1 (fr) 2004-05-28 2005-05-24 Procede de diffusion de donnees numeriques a un parc de terminaux recepteurs cible
EP05766645A EP1749401A1 (fr) 2004-05-28 2005-05-24 Procede de diffusion de donnees numeriques a un parc de terminaux recepteurs cible
CNA200580016924XA CN101032167A (zh) 2004-05-28 2005-05-24 将数字数据传送到一组目标接收终端的方法
US11/597,536 US8259940B2 (en) 2004-05-28 2005-05-24 Method for broadcasting digital data to a targeted set of reception terminals
KR1020067024794A KR101366812B1 (ko) 2004-05-28 2005-05-24 목표한 수신 단말들의 그룹으로 디지털 데이터를 전송하는방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0451064A FR2871017B1 (fr) 2004-05-28 2004-05-28 Procede de diffusion de donnees numeriques a un parc de terminaux recepteurs cible

Publications (2)

Publication Number Publication Date
FR2871017A1 true FR2871017A1 (fr) 2005-12-02
FR2871017B1 FR2871017B1 (fr) 2008-02-29

Family

ID=34945691

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0451064A Expired - Lifetime FR2871017B1 (fr) 2004-05-28 2004-05-28 Procede de diffusion de donnees numeriques a un parc de terminaux recepteurs cible

Country Status (6)

Country Link
US (1) US8259940B2 (fr)
EP (1) EP1749401A1 (fr)
KR (1) KR101366812B1 (fr)
CN (1) CN101032167A (fr)
FR (1) FR2871017B1 (fr)
WO (1) WO2005120066A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2129116A1 (fr) * 2008-05-29 2009-12-02 Nagravision S.A. Unité et méthode de traitement sécurisé de données audio/vidéo à accès contrôlé
EP2257062A1 (fr) * 2009-05-25 2010-12-01 Nagravision S.A. Procédé de contrôle d'accès à des services média
US8782417B2 (en) 2009-12-17 2014-07-15 Nagravision S.A. Method and processing unit for secure processing of access controlled audio/video data
US8819434B2 (en) 2009-12-17 2014-08-26 Nagravision S.A. Method and processing unit for secure processing of access controlled audio/video data
US9215505B2 (en) 2013-05-07 2015-12-15 Nagravision S.A. Method and system for secure processing a stream of encrypted digital audio/video data

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866772B1 (fr) * 2004-02-20 2006-04-28 Viaccess Sa Procede d'appariement d'un terminal recepteur avec une pluralite de cartes de controle d'acces
EP1742475A1 (fr) * 2005-07-07 2007-01-10 Nagravision S.A. Méthode de contrôle d'accès à des données chiffrées
PL1773055T3 (pl) * 2005-10-07 2015-04-30 Nagra France Sas Sposób weryfikacji uprawnień zawartych w module zabezpieczającym
US7970138B2 (en) * 2006-05-26 2011-06-28 Syphermedia International Method and apparatus for supporting broadcast efficiency and security enhancements
ITMI20080468A1 (it) * 2008-03-19 2009-09-20 Ro Ve R Lab S P A Dispositivo per la misurazione di segnali televisivi
EP2141924A1 (fr) * 2008-07-03 2010-01-06 Gemplus Procédé pour assurer la sécurité de diffusion de données en masse, et dispositifs associés
FR2941114B1 (fr) * 2009-01-13 2011-07-01 Viaccess Sa Procede et module de renouvellement du code d'un algorithme cryptographique, procede et module de generation d'une graine, processeur de securite et support d'enregistrement pour ces procedes
EP2334069A1 (fr) * 2009-12-11 2011-06-15 Irdeto Access B.V. Fourniture de mots de commande à un récepteur
EP2367317A1 (fr) * 2010-03-17 2011-09-21 Logiways France Procédé et système de protection d'un signal d'informations par un mot de contrôle
CN112073660B (zh) * 2020-09-15 2023-03-10 深圳Tcl数字技术有限公司 Tlv数据生成方法、读取方法、智能设备及存储介质

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EP1353511A2 (fr) * 2002-04-12 2003-10-15 Sagem SA Procédé de gestion de droits d'accès à des services de télévision

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US6697489B1 (en) * 1999-03-30 2004-02-24 Sony Corporation Method and apparatus for securing control words
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US5301233A (en) * 1991-08-19 1994-04-05 France Telecom Etablissement Autonome De Droit Public Process for the transmission and reception of personalized programs
EP0822719A2 (fr) * 1996-07-30 1998-02-04 Deutsche Telekom AG Méthodes et arrangements pour empêcher l'utilisation non-autorisée de réseaux de distribution
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US6587561B1 (en) * 1998-03-04 2003-07-01 Nds Ltd. Key delivery in a secure broadcasting system
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2129116A1 (fr) * 2008-05-29 2009-12-02 Nagravision S.A. Unité et méthode de traitement sécurisé de données audio/vidéo à accès contrôlé
WO2009144264A1 (fr) * 2008-05-29 2009-12-03 Nagravision S.A. Unité et procédé de traitement sécurisé de données audio/vidéo à accès contrôlé
CN102084664B (zh) * 2008-05-29 2013-01-02 纳格拉影像股份有限公司 用于访问受控音频/视频数据的安全处理的单元和方法
US8549655B2 (en) 2008-05-29 2013-10-01 Nagravision S.A. Unit and method for secure processing of access controlled audio/video data
EP2257062A1 (fr) * 2009-05-25 2010-12-01 Nagravision S.A. Procédé de contrôle d'accès à des services média
WO2010136395A1 (fr) * 2009-05-25 2010-12-02 Nagravision S.A. Procédé de fourniture de commande d'accès à des services mlltimédia
US8522036B2 (en) 2009-05-25 2013-08-27 Nagravision S.A. Method for providing access control to media services
US8782417B2 (en) 2009-12-17 2014-07-15 Nagravision S.A. Method and processing unit for secure processing of access controlled audio/video data
US8819434B2 (en) 2009-12-17 2014-08-26 Nagravision S.A. Method and processing unit for secure processing of access controlled audio/video data
US9215505B2 (en) 2013-05-07 2015-12-15 Nagravision S.A. Method and system for secure processing a stream of encrypted digital audio/video data

Also Published As

Publication number Publication date
WO2005120066A1 (fr) 2005-12-15
EP1749401A1 (fr) 2007-02-07
FR2871017B1 (fr) 2008-02-29
US8259940B2 (en) 2012-09-04
KR101366812B1 (ko) 2014-02-21
KR20070030798A (ko) 2007-03-16
US20070223695A1 (en) 2007-09-27
CN101032167A (zh) 2007-09-05

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