ZA200701114B - Method and system providing scrambled content - Google Patents

Method and system providing scrambled content Download PDF

Info

Publication number
ZA200701114B
ZA200701114B ZA200701114A ZA200701114A ZA200701114B ZA 200701114 B ZA200701114 B ZA 200701114B ZA 200701114 A ZA200701114 A ZA 200701114A ZA 200701114 A ZA200701114 A ZA 200701114A ZA 200701114 B ZA200701114 B ZA 200701114B
Authority
ZA
South Africa
Prior art keywords
key
stream
value
data
decryption key
Prior art date
Application number
ZA200701114A
Other languages
English (en)
Inventor
Wajs Augustine
Original Assignee
Irdeto Access B V Irdeto Acces
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 Irdeto Access B V Irdeto Acces filed Critical Irdeto Access B V Irdeto Acces
Publication of ZA200701114B publication Critical patent/ZA200701114B/en

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]
    • H04N21/60—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
    • H04N21/633—Control signals issued by server directed to the network components or client
    • H04N21/6332—Control signals issued by server directed to the network components or client directed to client
    • H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
    • 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]
    • H04N21/20—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
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/23614—Multiplexing of additional data and video streams
    • 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
    • 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
    • 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
    • H04N7/167—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)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Storage Device Security (AREA)
ZA200701114A 2006-02-15 2007-02-07 Method and system providing scrambled content ZA200701114B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06101704A EP1821538A1 (de) 2006-02-15 2006-02-15 Verfahren und System zur Herstellung von verschlüsseltem Inhalt

Publications (1)

Publication Number Publication Date
ZA200701114B true ZA200701114B (en) 2009-07-29

Family

ID=36848345

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA200701114A ZA200701114B (en) 2006-02-15 2007-02-07 Method and system providing scrambled content

Country Status (9)

Country Link
US (1) US8165293B2 (de)
EP (1) EP1821538A1 (de)
KR (1) KR20070082563A (de)
CN (1) CN101034972B (de)
AU (1) AU2007200636B2 (de)
BR (1) BRPI0700415A (de)
CA (1) CA2578710A1 (de)
HK (1) HK1111531A1 (de)
ZA (1) ZA200701114B (de)

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US9137480B2 (en) 2006-06-30 2015-09-15 Cisco Technology, Inc. Secure escrow and recovery of media device content keys
CN101325684B (zh) * 2007-06-14 2010-10-06 中兴通讯股份有限公司 基于移动多媒体广播的加密控制信息传输方法及系统
US8108680B2 (en) * 2007-07-23 2012-01-31 Murray Mark R Preventing unauthorized poaching of set top box assets
US20090028337A1 (en) * 2007-07-23 2009-01-29 Savi Technology, Inc. Method and Apparatus for Providing Security in a Radio Frequency Identification System
US8385545B2 (en) * 2007-07-27 2013-02-26 Howard G. Pinder Secure content key distribution using multiple distinct methods
US7949133B2 (en) * 2007-09-26 2011-05-24 Pinder Howard G Controlled cryptoperiod timing to reduce decoder processing load
CN101309120B (zh) * 2008-04-17 2010-12-08 中兴通讯股份有限公司 一种终端获取解密解扰信息的方法及装置
US20100104003A1 (en) * 2008-10-24 2010-04-29 Manufacturing Resources International Inc. System and method for securely transmitting video data
US9812047B2 (en) 2010-02-25 2017-11-07 Manufacturing Resources International, Inc. System and method for remotely monitoring the operating life of electronic displays
US9160988B2 (en) * 2009-03-09 2015-10-13 The Nielsen Company (Us), Llc System and method for payload encoding and decoding
EP2230845A1 (de) * 2009-03-16 2010-09-22 Irdeto Access B.V. Bereitstellung von Kontrollwörtern an einen Empfänger
KR20100133184A (ko) * 2009-06-11 2010-12-21 삼성전자주식회사 고체 상태 드라이브 장치
CN101656866B (zh) * 2009-08-14 2012-05-23 中兴通讯股份有限公司 移动数字多媒体业务的接收方法及终端设备及接收装置
EP2391125A1 (de) * 2010-05-26 2011-11-30 Nagra France Sas Sicherheitsverfahren zur Vermeidung der nicht autorisierten Verwendung von Multimediainhalten
EP2403244A1 (de) * 2010-07-01 2012-01-04 Thomson Licensing Sicheres Verschlüsselungsverfahren zur Verteilung von elektronischen Inhalten
US9503785B2 (en) 2011-06-22 2016-11-22 Nagrastar, Llc Anti-splitter violation conditional key change
US9251900B2 (en) * 2011-11-15 2016-02-02 Sandisk Technologies Inc. Data scrambling based on transition characteristic of the data
CA2935435C (en) * 2013-03-13 2023-09-19 Jumpto Media Inc. Secure network communication
US9392319B2 (en) * 2013-03-15 2016-07-12 Nagrastar Llc Secure device profiling countermeasures
CN104639313B (zh) * 2014-12-08 2018-03-09 中国科学院数据与通信保护研究教育中心 一种密码算法的检测方法
KR102056069B1 (ko) 2015-09-10 2020-01-22 매뉴팩처링 리소시스 인터내셔널 인코포레이티드 디스플레이 오류의 체계적 검출을 위한 시스템 및 방법
US9713070B1 (en) * 2016-08-18 2017-07-18 Cisco Technology, Inc. Regional conditional access
US11645029B2 (en) 2018-07-12 2023-05-09 Manufacturing Resources International, Inc. Systems and methods for remotely monitoring electronic displays
US10908863B2 (en) 2018-07-12 2021-02-02 Manufacturing Resources International, Inc. System and method for providing access to co-located operations data for an electronic display
CN109040076B (zh) * 2018-08-09 2020-07-24 腾讯科技（深圳）有限公司 一种数据处理方法、系统、装置、设备及介质
US11402940B2 (en) 2019-02-25 2022-08-02 Manufacturing Resources International, Inc. Monitoring the status of a touchscreen
US11137847B2 (en) 2019-02-25 2021-10-05 Manufacturing Resources International, Inc. Monitoring the status of a touchscreen
CN112825041A (zh) * 2019-11-21 2021-05-21 上海海思技术有限公司 一种内存隔离的装置、内存隔离方法和相关设备
CN111756767A (zh) * 2020-07-06 2020-10-09 成都卫士通信息产业股份有限公司 流媒体数据传输方法、装置、电子设备及计算机存储介质
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Also Published As

Publication number Publication date
US20070189525A1 (en) 2007-08-16
KR20070082563A (ko) 2007-08-21
AU2007200636A1 (en) 2007-08-30
CA2578710A1 (en) 2007-08-15
HK1111531A1 (en) 2008-08-08
CN101034972A (zh) 2007-09-12
US8165293B2 (en) 2012-04-24
BRPI0700415A (pt) 2007-11-06
AU2007200636B2 (en) 2011-03-31
CN101034972B (zh) 2011-04-13
EP1821538A1 (de) 2007-08-22

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