TW200718198A - Method for local conditional access for mobile equipments - Google Patents

Method for local conditional access for mobile equipments

Info

Publication number
TW200718198A
TW200718198A TW095116979A TW95116979A TW200718198A TW 200718198 A TW200718198 A TW 200718198A TW 095116979 A TW095116979 A TW 095116979A TW 95116979 A TW95116979 A TW 95116979A TW 200718198 A TW200718198 A TW 200718198A
Authority
TW
Taiwan
Prior art keywords
control word
decryption
control
conditional access
ecm
Prior art date
Application number
TW095116979A
Other languages
English (en)
Inventor
Bertrand Wendling
Olivier Landier
Original Assignee
Nagra France 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 Nagra France Sas filed Critical Nagra France Sas
Publication of TW200718198A publication Critical patent/TW200718198A/zh

Links

Classifications

    • 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
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/23—Arrangements for conditional access to broadcast information or to broadcast-related services using cryptography, e.g. encryption, authentication, key distribution
    • 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
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25808—Management of client data
    • H04N21/25841—Management of client data involving the geographical location of the client
    • 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]
    • H04N21/20—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]
    • H04N21/26609—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] using retrofitting techniques, e.g. by re-encrypting the control words used for pre-encryption
    • 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
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41407—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop
    • 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
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H04N21/42202—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS] environmental sensors, e.g. for detecting temperature, luminosity, pressure, earthquakes
    • 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
    • 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]
    • H04N21/60—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 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/643—Communication protocols
    • H04N21/64315—DVB-H
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
    • H04H60/49—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations
    • H04H60/50—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying locations of broadcast or relay stations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Remote Sensing (AREA)
  • Emergency Management (AREA)
  • Ecology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Computer Graphics (AREA)
  • Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Virology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)
TW095116979A 2005-05-13 2006-05-12 Method for local conditional access for mobile equipments TW200718198A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05291046A EP1722564A1 (fr) 2005-05-13 2005-05-13 Méthode d'accès conditionnel local pour équipements mobiles

Publications (1)

Publication Number Publication Date
TW200718198A true TW200718198A (en) 2007-05-01

Family

ID=35094488

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095116979A TW200718198A (en) 2005-05-13 2006-05-12 Method for local conditional access for mobile equipments

Country Status (7)

Country Link
US (2) US20080022411A1 (zh)
EP (2) EP1722564A1 (zh)
CN (1) CN101199205B (zh)
BR (1) BRPI0612433A2 (zh)
CA (1) CA2608650C (zh)
TW (1) TW200718198A (zh)
WO (1) WO2006122908A1 (zh)

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* Cited by examiner, † Cited by third party
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EP1885095A1 (fr) * 2006-08-02 2008-02-06 Nagravision S.A. Méthode d'accès conditionnel local pour équipements mobiles
WO2008028286A1 (en) * 2006-09-08 2008-03-13 Memory Experts International, Inc. Personal digital rights management with user mobility
CN101193308A (zh) * 2006-11-22 2008-06-04 上海贝尔阿尔卡特股份有限公司 用于提供可在通信网络中播放的音/视频信号的方法及装置
CN101198011B (zh) * 2006-12-07 2010-09-29 中兴通讯股份有限公司 一种移动多媒体广播网络中传输条件接收信息的方法
US20080219436A1 (en) * 2007-03-05 2008-09-11 General Instrument Corporation Method and apparatus for providing a digital rights management engine
CN101127596B (zh) * 2007-09-20 2012-04-11 中兴通讯股份有限公司 一种广播式移动电视业务中节目流密钥加密的方法及系统
KR20090048069A (ko) * 2007-11-09 2009-05-13 한국전자통신연구원 데이터 공유 시스템 및 공유방법
US8813254B2 (en) * 2008-05-19 2014-08-19 Motorola Mobility Llc Conditional access system switcher
CN101505402B (zh) * 2009-03-06 2012-04-18 四川长虹电器股份有限公司 单向网络数字电视条件接收系统终端解密模块的认证方法
EP2273786B1 (fr) * 2009-06-26 2012-09-05 France Telecom Contrôle d'accès à un contenu numérique
US8744486B2 (en) * 2009-09-25 2014-06-03 International Business Machines Corporation Location restricted content delivery over a network
EP2348725A1 (en) * 2010-01-26 2011-07-27 Irdeto Access B.V. Computational efficiently obtaining a control word in a receiver using transformations
EP2405650A1 (en) * 2010-07-09 2012-01-11 Nagravision S.A. A method for secure transfer of messages
CN102355598B (zh) * 2011-10-08 2014-02-19 北京视博数字电视科技有限公司 一种基于操作系统驱动层的加扰方法和装置
WO2013060390A1 (en) * 2011-10-28 2013-05-02 Irdeto B.V. Content stream processing
CN105446926B (zh) * 2014-09-09 2020-09-22 纳瑞塔有限责任公司 用于执行传输i/o的usb接口
US10728756B2 (en) 2016-09-23 2020-07-28 Qualcomm Incorporated Access stratum security for efficient packet processing

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9032097B2 (en) * 2001-04-26 2015-05-12 Nokia Corporation Data communication with remote network node
US7383561B2 (en) * 2001-06-29 2008-06-03 Nokia Corporation Conditional access system
TWI256263B (en) * 2001-11-21 2006-06-01 Nagravision Sa Method for controlling access to specific services from a broadcaster
US20030108202A1 (en) * 2001-12-12 2003-06-12 Clapper Edward O. Location dependent encryption and/or decryption
US20030181160A1 (en) * 2002-03-21 2003-09-25 Hirsch Andrew J. Authentication and provisioning system for subscriber broadcasts
US7228439B2 (en) * 2002-04-19 2007-06-05 Nagravision S.A. Management method of rights of a content encrypted and stored in a personal digital recorder
GB0324696D0 (en) * 2003-10-23 2003-11-26 Koninkl Philips Electronics Nv Accessing content at a geographical location
US7568111B2 (en) * 2003-11-11 2009-07-28 Nokia Corporation System and method for using DRM to control conditional access to DVB content
KR100735280B1 (ko) * 2005-06-16 2007-07-03 삼성전자주식회사 디지털 멀티미디어 방송 시청을 지역적으로 제한하기 위한제한 수신 방법 및 디지털 멀티미디어 방송 시스템
EP1885095A1 (fr) * 2006-08-02 2008-02-06 Nagravision S.A. Méthode d'accès conditionnel local pour équipements mobiles

Also Published As

Publication number Publication date
EP1880547B1 (fr) 2012-08-08
US20080144822A1 (en) 2008-06-19
EP1722564A1 (fr) 2006-11-15
CA2608650A1 (en) 2006-11-23
US9077856B2 (en) 2015-07-07
BRPI0612433A2 (pt) 2012-07-17
WO2006122908A1 (fr) 2006-11-23
CA2608650C (en) 2014-04-22
EP1880547A1 (fr) 2008-01-23
CN101199205A (zh) 2008-06-11
US20080022411A1 (en) 2008-01-24
CN101199205B (zh) 2010-11-03

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