BRPI0607459A2 - sistema de gerenciamento de chaves para cinema digital - Google Patents

sistema de gerenciamento de chaves para cinema digital

Info

Publication number
BRPI0607459A2
BRPI0607459A2 BRPI0607459-6A BRPI0607459A BRPI0607459A2 BR PI0607459 A2 BRPI0607459 A2 BR PI0607459A2 BR PI0607459 A BRPI0607459 A BR PI0607459A BR PI0607459 A2 BRPI0607459 A2 BR PI0607459A2
Authority
BR
Brazil
Prior art keywords
digital cinema
key
key management
management system
encrypted content
Prior art date
Application number
BRPI0607459-6A
Other languages
English (en)
Inventor
Arnaud Robert
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Publication of BRPI0607459A2 publication Critical patent/BRPI0607459A2/pt

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • 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
    • H04N21/23473—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption by pre-encrypting
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • 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
    • H04N21/26613—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 keys in general
    • 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
    • H04N21/41415—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance involving a public display, viewable by several users in a public space outside their home, e.g. movie theatre, information kiosk
    • 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
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
    • 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
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17318—Direct or substantially direct transmission and handling of requests

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Physics (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Storage Device Security (AREA)

Abstract

SISTEMA DE GERENCIAMENTO DE CHAVES PARA CINEMA DIGITAL. Trata-se de um gerenciamento de chaves em um sistema de cinema digital (10, 100 e 1000) que ocorre com a criptografia de uma chave de filme associada ao conteúdo criptografado com uma chave de transmissão trocada com um módulo de descriptografia (60, 601, 602, 6001, 6002, 6003 e 6004), que serve para descriptografar o conteúdo criptografado. A chave de filme criptografada passa pela transmissão para o módulo de descriptografia para permitir a descriptografia do conteúdo criptografado. Dessa forma, o módulo de descriptografia terá somente a capacidade de descriptografar conteúdo baseado na própria chave desse módulo.
BRPI0607459-6A 2005-02-15 2006-01-18 sistema de gerenciamento de chaves para cinema digital BRPI0607459A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US65315405P 2005-02-15 2005-02-15
PCT/US2006/001707 WO2006088596A2 (en) 2005-02-15 2006-01-18 Key management system for digital cinema

Publications (1)

Publication Number Publication Date
BRPI0607459A2 true BRPI0607459A2 (pt) 2009-09-08

Family

ID=36916905

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0607459-6A BRPI0607459A2 (pt) 2005-02-15 2006-01-18 sistema de gerenciamento de chaves para cinema digital

Country Status (8)

Country Link
US (1) US8483393B2 (pt)
EP (1) EP1849302A2 (pt)
JP (3) JP2008530902A (pt)
KR (1) KR101383738B1 (pt)
CN (1) CN101124822B (pt)
BR (1) BRPI0607459A2 (pt)
CA (1) CA2596872C (pt)
WO (1) WO2006088596A2 (pt)

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US20090086969A1 (en) * 2007-09-27 2009-04-02 Klauss Peter M Method and system for providing content to a content distribution system suitable for a multiple dwelling unit using an encryption
US8532293B2 (en) 2007-09-27 2013-09-10 The Directv Group, Inc. Method and system for securely providing and storing content in a multiple dwelling unit system
US9800838B2 (en) * 2007-09-27 2017-10-24 The Directv Group, Inc. Method and system for providing content to a content distribution system suitable for a multiple dwelling unit using an authorization list
JP4612033B2 (ja) * 2007-10-04 2011-01-12 日本電信電話株式会社 上映ライセンス管理システム，上映ライセンス管理方法および上映ライセンス管理プログラム
WO2009086669A1 (en) 2007-12-29 2009-07-16 Thomson Licensing System and method for data transmission
CA2659016A1 (en) * 2009-03-23 2010-09-23 Doug P. Horsley Polychromatic harmonica
JP5299024B2 (ja) * 2009-03-27 2013-09-25 ソニー株式会社 ディジタルシネマ管理装置とディジタルシネマ管理方法
US20100185868A1 (en) * 2010-03-21 2010-07-22 William Grecia Personilized digital media access system
US8402555B2 (en) 2010-03-21 2013-03-19 William Grecia Personalized digital media access system (PDMAS)
DE102010027586B4 (de) * 2010-07-19 2012-07-05 Siemens Aktiengesellschaft Verfahren zum kryptographischen Schutz einer Applikation
CA2795287C (en) * 2011-04-01 2018-02-27 Certicom Corp. Identity-based decryption
CN104081786A (zh) * 2011-12-14 2014-10-01 汤姆逊许可公司 用于自动获得数字电影解密密钥的方法和装置
JP2015509319A (ja) * 2012-01-05 2015-03-26 トムソン ライセンシングＴｈｏｍｓｏｎ Ｌｉｃｅｎｓｉｎｇ ビデオおよび／またはオーディオのオンデマンド資産を使用したメディアコンテンツ配信のための方法
JP5981761B2 (ja) * 2012-05-01 2016-08-31 キヤノン株式会社 通信装置、制御方法、プログラム
EP3105934B8 (en) 2014-02-14 2020-12-30 Pluto Inc. Methods and systems for generating and providing program guides and content
US10127189B2 (en) * 2015-08-04 2018-11-13 Zhejiang Dafeng Industry Co., Ltd. Multidimensional stage adaptive transmission control system
US10476989B2 (en) 2016-04-10 2019-11-12 Dolby Laboratories Licensing Corporation Remote management system for cinema exhibition devices
US10623186B1 (en) * 2017-11-10 2020-04-14 Amazon Technologies, Inc. Authenticated encryption with multiple contexts
KR102478426B1 (ko) * 2018-03-16 2022-12-16 삼성전자주식회사 동영상 콘텐트에 포함된 블랙 영역을 검출하기 위한 방법 및 그 전자 장치
US11533527B2 (en) 2018-05-09 2022-12-20 Pluto Inc. Methods and systems for generating and providing program guides and content
US10701419B2 (en) * 2018-09-11 2020-06-30 Comcast Cable Communications, Llc Managing concurrent content playback
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US11134311B2 (en) * 2020-02-10 2021-09-28 Xandr Inc. Methods and apparatuses for a modular and extensible advertisement request
US11509946B1 (en) 2021-11-08 2022-11-22 Pluto Inc. Methods and systems configured to manage video transcoder latencies
US12047632B2 (en) 2022-08-11 2024-07-23 Pluto Inc. Content delivery network utilizing dynamically assembled adaptive bitrates segments

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Also Published As

Publication number Publication date
EP1849302A2 (en) 2007-10-31
CN101124822A (zh) 2008-02-13
KR20070114122A (ko) 2007-11-29
US20080137869A1 (en) 2008-06-12
JP2008530902A (ja) 2008-08-07
JP2013066187A (ja) 2013-04-11
WO2006088596A2 (en) 2006-08-24
JP2015111872A (ja) 2015-06-18
KR101383738B1 (ko) 2014-04-08
CN101124822B (zh) 2010-08-25
CA2596872A1 (en) 2006-08-24
WO2006088596A3 (en) 2007-06-07
CA2596872C (en) 2016-03-01
US8483393B2 (en) 2013-07-09

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]