KR20160002844A - 적어도 하나의 콘텐츠 키에 의해 암호화된 압축 콘텐츠를 암호화하는 방법 - Google Patents

적어도 하나의 콘텐츠 키에 의해 암호화된 압축 콘텐츠를 암호화하는 방법 Download PDF

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Publication number
KR20160002844A
KR20160002844A KR1020157030815A KR20157030815A KR20160002844A KR 20160002844 A KR20160002844 A KR 20160002844A KR 1020157030815 A KR1020157030815 A KR 1020157030815A KR 20157030815 A KR20157030815 A KR 20157030815A KR 20160002844 A KR20160002844 A KR 20160002844A
Authority
KR
South Korea
Prior art keywords
content
key
descrambler
conditioner
inserter
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.)
Abandoned
Application number
KR1020157030815A
Other languages
English (en)
Korean (ko)
Inventor
디디에 후나세크
패트릭 서베트
민 손 트란
피에르 사르다
Original Assignee
나그라비젼 에스에이
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 나그라비젼 에스에이 filed Critical 나그라비젼 에스에이
Publication of KR20160002844A publication Critical patent/KR20160002844A/ko
Abandoned legal-status Critical Current

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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]
    • H04N21/80—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
    • H04N21/8358—Generation of protective data, e.g. certificates involving watermark
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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]
    • 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]
    • H04N21/60—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
    • H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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]
    • G06F21/16—Program or content traceability, e.g. by watermarking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/3232—Robust embedding or watermarking
    • 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
    • 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)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Technology Law (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Storage Device Security (AREA)
KR1020157030815A 2013-04-26 2014-04-28 적어도 하나의 콘텐츠 키에 의해 암호화된 압축 콘텐츠를 암호화하는 방법 Abandoned KR20160002844A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13165597.9A EP2797335A1 (en) 2013-04-26 2013-04-26 Method to watermark a compressed content encrypted by at least one content key
EP13165597.9 2013-04-26
PCT/EP2014/058628 WO2014174122A1 (en) 2013-04-26 2014-04-28 Method to watermark a compressed content encrypted by at least one content key

Publications (1)

Publication Number Publication Date
KR20160002844A true KR20160002844A (ko) 2016-01-08

Family

ID=48226998

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020157030815A Abandoned KR20160002844A (ko) 2013-04-26 2014-04-28 적어도 하나의 콘텐츠 키에 의해 암호화된 압축 콘텐츠를 암호화하는 방법

Country Status (11)

Country Link
US (2) US9729941B2 (cg-RX-API-DMAC7.html)
EP (2) EP2797335A1 (cg-RX-API-DMAC7.html)
JP (1) JP6438459B2 (cg-RX-API-DMAC7.html)
KR (1) KR20160002844A (cg-RX-API-DMAC7.html)
CN (1) CN105432092B (cg-RX-API-DMAC7.html)
BR (1) BR112015027089B1 (cg-RX-API-DMAC7.html)
CA (1) CA2908404C (cg-RX-API-DMAC7.html)
ES (1) ES2745401T3 (cg-RX-API-DMAC7.html)
MX (1) MX348381B (cg-RX-API-DMAC7.html)
SG (1) SG11201508181SA (cg-RX-API-DMAC7.html)
WO (1) WO2014174122A1 (cg-RX-API-DMAC7.html)

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EP3113501A1 (en) 2015-06-29 2017-01-04 Nagravision SA Content protection
US10939163B2 (en) 2015-11-12 2021-03-02 Nagravision S.A. Method for watermarking encrypted digital content, method and device for retrieving a unique identifier from watermarked content and content distribution network
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US10831869B2 (en) * 2018-07-02 2020-11-10 International Business Machines Corporation Method for watermarking through format preserving encryption
KR102265784B1 (ko) * 2019-11-22 2021-06-17 (주)잉카엔트웍스 클라이언트측 포렌식 워터마크 장치, 시스템 및 방법
IT201900023844A1 (it) * 2019-12-12 2021-06-12 Telecom Italia Spa Protezione di contenuti multimediali
US11803620B2 (en) * 2020-05-15 2023-10-31 Synamedia Limited Systems and methods for identifying a content receiving device

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Also Published As

Publication number Publication date
EP2797335A1 (en) 2014-10-29
BR112015027089A2 (pt) 2017-07-25
EP2989805A1 (en) 2016-03-02
CA2908404C (en) 2021-10-12
CN105432092A (zh) 2016-03-23
US9729941B2 (en) 2017-08-08
US10015564B2 (en) 2018-07-03
JP6438459B2 (ja) 2018-12-12
ES2745401T3 (es) 2020-03-02
CA2908404A1 (en) 2014-10-30
BR112015027089B1 (pt) 2023-10-31
WO2014174122A1 (en) 2014-10-30
SG11201508181SA (en) 2015-11-27
US20170339472A1 (en) 2017-11-23
BR112015027089A8 (pt) 2019-12-24
US20160080831A1 (en) 2016-03-17
EP2989805B1 (en) 2019-07-03
CN105432092B (zh) 2018-10-09
MX2015014979A (es) 2016-02-05
JP2016522435A (ja) 2016-07-28
MX348381B (es) 2017-06-09

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