CO6811819A2 - Método para identificar el origen de un módulo de seguridad en un sistema decodificador de televisión de paga - Google Patents

Método para identificar el origen de un módulo de seguridad en un sistema decodificador de televisión de paga

Info

Publication number
CO6811819A2
CO6811819A2 CO13242876A CO13242876A CO6811819A2 CO 6811819 A2 CO6811819 A2 CO 6811819A2 CO 13242876 A CO13242876 A CO 13242876A CO 13242876 A CO13242876 A CO 13242876A CO 6811819 A2 CO6811819 A2 CO 6811819A2
Authority
CO
Colombia
Prior art keywords
control
flow
security module
pay
current
Prior art date
Application number
CO13242876A
Other languages
English (en)
Inventor
Henri Kudelski
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 CO6811819A2 publication Critical patent/CO6811819A2/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]
    • H04N21/20—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
    • 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
    • H04N21/41—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
    • 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
    • H04N21/45—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
    • 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]
    • H04N21/80—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

La invención propone una solución para identificar el origen de un módulo de seguridad en un sistema de televisión de paga, de acuerdo con los pasos de: - recibir por el sistema decodificador de televisión de paga un servicio que comprende por lo menos un primer flujo; un segundo flujo y un flujo de cifra de control; el primer flujo está encriptado por una primera cifra de control (CW1) y el segundo flujo está encriptado por un segundo flujo (CW2); - extraer del flujo de cifra de control, mensajes de autorización que contienen por lo menos una cifra de control principal (CW) que permite extraer las cifras de control primera y segunda y las condiciones de acceso; - transferir el flujo de cifra de control al módulo de seguridad; - extraer los mensajes de autorización del flujo de cifra de control y comprobar las condiciones de acceso; - si se satisfacen las condiciones de acceso, determinar las cifras de control primera y segunda de la cifra de control principal en el mensaje de autorización; - determinar un parámetro interno del módulo de seguridad; siendo este parámetro interno único por módulo de seguridad; - seleccionar una cifra de control actual de la primar o la segunda cifra de control, basada en parte del parámetro interno, que corresponde al flujo primero o segundo; - trasmitir la cifra de control actual al decodificador de televisión de paga; - seleccionar un flujo actual del flujo primero o segundo, de acuerdo con la selección de la cifra de control primera o segunda; - desencriptar el flujo actual con la cifra de control actual.
CO13242876A 2011-04-15 2013-10-11 Método para identificar el origen de un módulo de seguridad en un sistema decodificador de televisión de paga CO6811819A2 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201161475754P 2011-04-15 2011-04-15

Publications (1)

Publication Number Publication Date
CO6811819A2 true CO6811819A2 (es) 2013-12-16

Family

ID=45937357

Family Applications (1)

Application Number Title Priority Date Filing Date
CO13242876A CO6811819A2 (es) 2011-04-15 2013-10-11 Método para identificar el origen de un módulo de seguridad en un sistema decodificador de televisión de paga

Country Status (13)

Country Link
US (1) US10419800B2 (es)
EP (1) EP2697979B1 (es)
KR (1) KR101925653B1 (es)
CN (1) CN103503464B (es)
BR (1) BR112013024763A2 (es)
CO (1) CO6811819A2 (es)
DK (1) DK2697979T3 (es)
ES (1) ES2605112T3 (es)
HU (1) HUE031201T2 (es)
MX (1) MX2013011549A (es)
PL (1) PL2697979T3 (es)
PT (1) PT2697979T (es)
WO (1) WO2012139913A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9106965B2 (en) 2012-12-27 2015-08-11 Echostar Technologies L.L.C. Using idle resources to reduce channel change times
US9854306B2 (en) 2014-07-28 2017-12-26 Echostar Technologies L.L.C. Methods and systems for content navigation among programs presenting advertising content
US9756378B2 (en) 2015-01-07 2017-09-05 Echostar Technologies L.L.C. Single file PVR per service ID
US9635413B2 (en) * 2015-09-23 2017-04-25 Echostar Technologies L.L.C. Advance decryption key acquisition for streaming media content

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4271476A (en) * 1979-07-17 1981-06-02 International Business Machines Corporation Method and apparatus for rotating the scan format of digital images
US7224798B2 (en) * 1995-04-03 2007-05-29 Scientific-Atlanta, Inc. Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system
US7010125B2 (en) 2001-01-26 2006-03-07 Interntional Business Machines Corporation Method for tracing traitor receivers in a broadcast encryption system
US20020116705A1 (en) * 2001-02-20 2002-08-22 Perlman Stephen G. System and method for processing conditional access data
WO2004082286A1 (fr) * 2003-03-12 2004-09-23 Kudelski S.A. Systeme de television a peage, procede de diffusion de programmes audiovisuels brouilles, decodeur et carte a puce mettant en oeuvre ce procede
EP1780937A1 (en) * 2005-11-01 2007-05-02 Black & Decker, Inc. Method and system for authenticating a smart battery system
EP1958430A1 (en) * 2005-12-05 2008-08-20 Thomson Licensing Watermarking encoded content
JP5277180B2 (ja) 2007-03-23 2013-08-28 トムソン ライセンシング 符号化ビットストリームの修正
BRPI0811626B1 (pt) * 2007-06-14 2019-08-20 Contentarmor Método e dispositivo imprimir marca d'água em dados codificados de extensão variável, fluxo contínuo de dados codificados de extensão variável e mídia legível por processador
US8824685B2 (en) * 2007-10-15 2014-09-02 Sony Corporation Method for detection of a hacked decoder
US8839284B2 (en) * 2008-12-31 2014-09-16 Time Warner Cable Enterprises Llc Methods and apparatus for controlling content distribution
ATE557533T1 (de) * 2010-03-05 2012-05-15 Nagravision Sa Verfahren zur steuerung des zugriffs auf eine mehrzahl von kanälen über einen empfänger/decoder
US20120191724A1 (en) * 2011-01-26 2012-07-26 Tucek Joseph A Storage of data objects based on a time of creation
US8959544B2 (en) * 2012-03-15 2015-02-17 Echostar Technologies L.L.C. Descrambling of multiple television channels

Also Published As

Publication number Publication date
US20140229972A1 (en) 2014-08-14
WO2012139913A1 (en) 2012-10-18
CN103503464A (zh) 2014-01-08
US10419800B2 (en) 2019-09-17
CN103503464B (zh) 2016-11-09
ES2605112T3 (es) 2017-03-13
MX2013011549A (es) 2013-11-01
KR20140015427A (ko) 2014-02-06
BR112013024763A2 (pt) 2017-06-27
HUE031201T2 (en) 2017-07-28
EP2697979B1 (en) 2016-09-28
EP2697979A1 (en) 2014-02-19
KR101925653B1 (ko) 2018-12-05
PL2697979T3 (pl) 2017-04-28
DK2697979T3 (en) 2017-01-23
PT2697979T (pt) 2016-12-23

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