AR051247A1 - Proceso de control de acceso a datos de acceso condicional - Google Patents

Proceso de control de acceso a datos de acceso condicional

Info

Publication number
AR051247A1
AR051247A1 ARP050104958A ARP050104958A AR051247A1 AR 051247 A1 AR051247 A1 AR 051247A1 AR P050104958 A ARP050104958 A AR P050104958A AR P050104958 A ARP050104958 A AR P050104958A AR 051247 A1 AR051247 A1 AR 051247A1
Authority
AR
Argentina
Prior art keywords
ecm
date
security module
multimedia unit
determination
Prior art date
Application number
ARP050104958A
Other languages
English (en)
Inventor
Nicolas Courtin
Olivier Brique
Christophe Cogniat
Jimmy Cochard
Original Assignee
Nagracard Sa
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 Nagracard Sa filed Critical Nagracard Sa
Publication of AR051247A1 publication Critical patent/AR051247A1/es

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
    • H04N21/43—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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4367—Establishing a secure communication between the client and a peripheral device or smart card
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
    • H04N21/4181—External card to be used in combination with the client device, e.g. for conditional access for conditional access
    • 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
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44236—Monitoring of piracy processes or activities
    • 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
    • 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
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47211—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting pay-per-view content

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Virology (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Storage Device Security (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Communication Control (AREA)

Abstract

La presente se refiere a un procedimiento de control de acceso a unos datos de acceso condicional en una unidad multimedia que incluye al menos un modulo de seguridad. Este procedimiento se caracteriza por las etapas siguientes: recepcion por la unidad multimedia, de un mensaje de control ECM que contiene al menos una palabra de control cw; transmision de este mensaje ECM a dicho modulo de seguridad, y este mensaje de control está asociado a un derecho de desciframiento de los mensajes; determinacion de una fecha de validez de los derechos de desciframiento de los mensajes de control ECM asociados a dicho modulo de seguridad; determinacion de la fecha actual; comparacion de la fecha actual con la fecha de rescision de los derechos de desciframiento y determinacion de si la fecha actual es anterio a la fecha de rescision: en caso afirmativo, desciframiento del mensaje de control ECM y envío de la palabra de control cw a dicha unidad multimedia; en caso negativo, lectura de un valor contenido en un contador del modulo de seguridad y comparacion de este valor para determinar si este valor está comprendido en un margen que autoriza el desciframiento; en caso afirmativo; desciframiento del mensaje de control ECM, envío de la palabra de control cw a dicha unidad multimedia y modificacion del valor del contador segun una regla preestablecida; en caso negativo, bloqueo del acceso a dichos datos de acceso condicional.
ARP050104958A 2004-11-29 2005-11-28 Proceso de control de acceso a datos de acceso condicional AR051247A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04106163A EP1662789A1 (fr) 2004-11-29 2004-11-29 Procédé de contrôle d'accès à des données à accès conditionnel

Publications (1)

Publication Number Publication Date
AR051247A1 true AR051247A1 (es) 2006-12-27

Family

ID=34929962

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP050104958A AR051247A1 (es) 2004-11-29 2005-11-28 Proceso de control de acceso a datos de acceso condicional

Country Status (9)

Country Link
US (1) US8099778B2 (es)
EP (2) EP1662789A1 (es)
KR (1) KR101182929B1 (es)
CN (1) CN101065965B (es)
AR (1) AR051247A1 (es)
DK (1) DK1829370T3 (es)
ES (1) ES2486251T3 (es)
TW (1) TWI407788B (es)
WO (1) WO2006056609A1 (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200511860A (en) * 2003-05-14 2005-03-16 Nagracard Sa Duration computing method in a security module
FR2931333B1 (fr) * 2008-05-16 2011-02-25 Viaccess Sa Procedes de reception et d'emission d'un contenu multimedia, recepteur, emetteur et support d'enregistrement et processeur de securite pour ce procede
EP2124439A1 (fr) 2008-05-21 2009-11-25 Nagravision S.A. Méthode d'allocation et de gestion d'abbonements de réception de produits télédiffusés
EP2129116A1 (fr) 2008-05-29 2009-12-02 Nagravision S.A. Unité et méthode de traitement sécurisé de données audio/vidéo à accès contrôlé
CA2728189C (en) * 2008-06-20 2017-03-28 Nagravision S.A. Method for controlling the use of a conditional access content and multimedia unit for implementing said method
US8781127B2 (en) * 2008-09-05 2014-07-15 Vixs Systems, Inc. Device with privileged memory and applications thereof
DE102009054114A1 (de) * 2009-11-20 2011-05-26 Siemens Aktiengesellschaft Verfahren und Vorrichtung zum Zugreifen auf Steuerungsdaten gemäß einer bereitgestellten Rechteinformation
US8782417B2 (en) 2009-12-17 2014-07-15 Nagravision S.A. Method and processing unit for secure processing of access controlled audio/video data
EP2337347A1 (en) * 2009-12-17 2011-06-22 Nagravision S.A. Method and processing unit for secure processing of access controlled audio/video data
EP2395741A1 (en) * 2010-06-11 2011-12-14 Nagravision S.A. Method to manage the power setting of a receiver/decoder for pay-TV
FR2969439B1 (fr) * 2010-12-17 2018-06-22 Cryptoexperts Sas Procede et systeme d'acces conditionnel a un contenu numerique, terminal et dispositif d'abonne associes
EP2566157A1 (en) 2011-09-02 2013-03-06 Nagravision S.A. Method to optimize reception of entitlement management messages in a Pay-TV system
US9503785B2 (en) * 2011-06-22 2016-11-22 Nagrastar, Llc Anti-splitter violation conditional key change
EP2747443B1 (en) * 2012-12-20 2019-06-26 Nagravision S.A. Method to enforce processing of management messages by a security module
CN103248920A (zh) * 2013-04-28 2013-08-14 北京视博数字电视科技有限公司 一种数字电视网络的授权系统、方法及装置
EP2802152B1 (en) 2013-05-07 2017-07-05 Nagravision S.A. Method for secure processing a stream of encrypted digital audio / video data
CN107122678A (zh) * 2017-04-28 2017-09-01 上海与德科技有限公司 保护产品参数的方法及装置
US11784868B1 (en) 2022-05-19 2023-10-10 Geotab Inc. Systems and methods for collecting telematics data from telematics devices

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US4937866A (en) * 1986-08-13 1990-06-26 U.S. Philips Corporation System for decoding transmitted scrambled signals
US5594794A (en) * 1994-10-18 1997-01-14 General Instrument Corporation Of Delaware Method and apparatus for free previews of communication network services
US6005938A (en) * 1996-12-16 1999-12-21 Scientific-Atlanta, Inc. Preventing replay attacks on digital information distributed by network service providers
JPH11308595A (ja) * 1998-04-20 1999-11-05 Matsushita Electric Ind Co Ltd 放送受信装置
US7565546B2 (en) * 1999-03-30 2009-07-21 Sony Corporation System, method and apparatus for secure digital content transmission
JP2003533075A (ja) * 1999-12-22 2003-11-05 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 データコンテンツへのアクセスを制御する条件付きアクセスシステム
CA2427181A1 (en) * 2000-10-26 2002-11-28 General Instrument Corporation Initial free preview for multimedia multicast content
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JP4077689B2 (ja) * 2002-08-28 2008-04-16 日本放送協会 コンテンツ送信方法、コンテンツ送信装置、コンテンツ送信プログラムおよびコンテンツ受信方法、コンテンツ受信装置、コンテンツ受信プログラム
JP2004186714A (ja) * 2002-11-29 2004-07-02 Pioneer Electronic Corp コンテンツ提供システム、コンテンツ受信装置、視聴制御プログラム及び視聴制御用記憶媒体
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Also Published As

Publication number Publication date
TW200633531A (en) 2006-09-16
US20060117392A1 (en) 2006-06-01
KR20070084540A (ko) 2007-08-24
KR101182929B1 (ko) 2012-09-13
WO2006056609A1 (fr) 2006-06-01
CN101065965A (zh) 2007-10-31
CN101065965B (zh) 2011-01-26
EP1829370B1 (fr) 2014-05-07
EP1829370A1 (fr) 2007-09-05
ES2486251T3 (es) 2014-08-18
TWI407788B (zh) 2013-09-01
US8099778B2 (en) 2012-01-17
EP1662789A1 (fr) 2006-05-31
DK1829370T3 (da) 2014-08-11

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