MX347134B - Metodo para insertar una marca de agua en contenido de medios y sistema para implementar este metodo. - Google Patents

Metodo para insertar una marca de agua en contenido de medios y sistema para implementar este metodo.

Info

Publication number
MX347134B
MX347134B MX2015014775A MX2015014775A MX347134B MX 347134 B MX347134 B MX 347134B MX 2015014775 A MX2015014775 A MX 2015014775A MX 2015014775 A MX2015014775 A MX 2015014775A MX 347134 B MX347134 B MX 347134B
Authority
MX
Mexico
Prior art keywords
data
metadata
watermarking
sample
transmitting
Prior art date
Application number
MX2015014775A
Other languages
English (en)
Other versions
MX2015014775A (es
Inventor
Hunacek Didier
Servet Patrick
Macchetti Marco
Original Assignee
Nagravision 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 Nagravision Sa filed Critical Nagravision Sa
Publication of MX2015014775A publication Critical patent/MX2015014775A/es
Publication of MX347134B publication Critical patent/MX347134B/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]
    • H04N21/80—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
    • 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
    • H04N21/44—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)
  • Storage Device Security (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

La presente invención se refiere a un método y un sistema (20) para inserción de marca de agua en un contenido de medios digitales (1) recibido por un software de aplicación (APP) en forma de por lo menos una muestra cifrada (15). El contenido de medios digitales (1) se relaciona con los metadatos (10) asignados a cada muestra (15). Esta última está cifrada por medio de una clave de muestra (Kc'). Los metadatos (10) contienen primeros datos (11), segundos datos (12) y una firma digital (13) resultante de la firma de dichos primeros y segundos datos. Los primeros datos (11) contienen por lo menos una clave de contenido (Kc) y metadatos de inserción de marca de agua (WM) y por lo menos dichos primeros datos (11) están cifrados mediante una clave de transporte (KT). Los segundos datos (12) contienen un vector de inicialización (IV) de manera que el contenido clave (Kc) y el vector de inicialización (IV) forman un par único de datos criptográficos equivalentes a la clave de muestra (Kc'). El software de aplicación (APP) se comunica con un entorno seguro (30) a cargo del manejo de dichos metadatos (10). La inserción de marca de agua del contenido de medios digitales (1) se realiza mediante los siguientes pasos: - dar instrucciones al software de aplicación (APP) para que extraiga los metadatos (10) del contenido de medios digitales (1), antes de transmitir los metadatos (10) al entorno seguro (30). - descifrar por lo menos una parte de los primeros datos (11) por medio de la clave de transporte (KT), - verificar la autenticación de dichos datos firmados digitalmente (11, 12) y en el caso de un resultado positivo, transmitir entonces la clave de contenido (Kc) y el vector de inicialización (IV) a un decodificador (37) y transmitir los metadatos de inserción de marca de agua (WM) a una unidad de inserción de marca de agua (39). - transmitir el contenido de medios digitales (1) al decodificador (37) para descodificar cada muestra (15) por medio de dicho par de datos criptográficos, - transmitir cada muestra descodificada (15') a la unidad de inserción de marca de agua (39) para marcarla digitalmente por medio de por lo menos dichos metadatos de inserción de marca de agua, - transmitir la muestra (15', 15") desde la unidad de inserción de marca de agua (39) hacia el software de aplicación (APP) o a una ruta de medios segura para fines de renderización.
MX2015014775A 2013-04-26 2014-04-11 Metodo para insertar una marca de agua en contenido de medios y sistema para implementar este metodo. MX347134B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13165496.4A EP2797333A1 (en) 2013-04-26 2013-04-26 Method for watermarking media content and system for implementing this method
PCT/EP2014/057331 WO2014173697A1 (en) 2013-04-26 2014-04-11 Method for watermarking media content and system for implementing this method

Publications (2)

Publication Number Publication Date
MX2015014775A MX2015014775A (es) 2016-03-04
MX347134B true MX347134B (es) 2017-04-17

Family

ID=48226993

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2015014775A MX347134B (es) 2013-04-26 2014-04-11 Metodo para insertar una marca de agua en contenido de medios y sistema para implementar este metodo.

Country Status (10)

Country Link
US (1) US9571899B2 (es)
EP (2) EP2797333A1 (es)
JP (1) JP6297137B2 (es)
KR (1) KR102206142B1 (es)
CN (1) CN105247883B (es)
BR (1) BR112015027098A8 (es)
CA (1) CA2908401A1 (es)
MX (1) MX347134B (es)
SG (1) SG11201508182QA (es)
WO (1) WO2014173697A1 (es)

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US20170214949A1 (en) * 2016-01-27 2017-07-27 International Business Machines Corporation Guideline-based video classification of data streams
CN107369125A (zh) * 2017-06-13 2017-11-21 重庆第二师范学院 用于数据流的鲁棒水印检测方法和装置
CN109218837B (zh) * 2017-06-30 2020-09-08 武汉斗鱼网络科技有限公司 一种显示虚拟礼物特效的方法和设备
US10715498B2 (en) 2017-07-18 2020-07-14 Google Llc Methods, systems, and media for protecting and verifying video files
US10769252B2 (en) * 2018-03-20 2020-09-08 Markany Inc. Method and apparatus for watermarking of digital content, method for extracting information
CN109327727B (zh) * 2018-11-20 2020-11-27 网宿科技股份有限公司 一种WebRTC中的直播流处理方法及推流客户端
US11095927B2 (en) 2019-02-22 2021-08-17 The Nielsen Company (Us), Llc Dynamic watermarking of media based on transport-stream metadata, to facilitate action by downstream entity
US10904251B2 (en) 2019-05-17 2021-01-26 Advanced New Technologies Co., Ltd. Blockchain-based copyright protection method and apparatus, and electronic device
CN110990848A (zh) * 2019-11-18 2020-04-10 上海易点时空网络有限公司 基于hive数据仓库的敏感字加密方法及装置、存储介质
FR3110263A1 (fr) * 2020-05-15 2021-11-19 Smardtv Global Sas Procédé et système pour authentifier une application informatique, ou une fonction de l’application, exécutée par un récepteur multimédia
US20220345790A1 (en) * 2021-04-22 2022-10-27 Cisco Technology, Inc. In-band metadata for authenticity and role-based access in enterprise video streaming services

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JP2001283180A (ja) * 2000-03-29 2001-10-12 Dainippon Printing Co Ltd Ｉｃカードおよび電子透かしデータ重畳装置
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Also Published As

Publication number Publication date
BR112015027098A8 (pt) 2019-12-24
JP2016522612A (ja) 2016-07-28
CN105247883A (zh) 2016-01-13
CA2908401A1 (en) 2014-10-30
EP2989803B1 (en) 2019-03-27
US20160088366A1 (en) 2016-03-24
BR112015027098A2 (pt) 2017-07-25
KR102206142B1 (ko) 2021-01-22
EP2797333A1 (en) 2014-10-29
MX2015014775A (es) 2016-03-04
KR20160002778A (ko) 2016-01-08
US9571899B2 (en) 2017-02-14
CN105247883B (zh) 2018-08-24
JP6297137B2 (ja) 2018-03-20
SG11201508182QA (en) 2015-11-27
WO2014173697A1 (en) 2014-10-30
EP2989803A1 (en) 2016-03-02

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