BR0309362A - Método para gerenciamento dos direitos de um conteúdo criptografado em um gravador digital pessoal - Google Patents

Método para gerenciamento dos direitos de um conteúdo criptografado em um gravador digital pessoal

Info

Publication number
BR0309362A
BR0309362A BR0309362-0A BR0309362A BR0309362A BR 0309362 A BR0309362 A BR 0309362A BR 0309362 A BR0309362 A BR 0309362A BR 0309362 A BR0309362 A BR 0309362A
Authority
BR
Brazil
Prior art keywords
event
ecm
security unit
unit
storage
Prior art date
Application number
BR0309362-0A
Other languages
English (en)
Other versions
BRPI0309362B1 (pt
Inventor
Marco Sasselli
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=28796659&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR0309362(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nagravision Sa filed Critical Nagravision Sa
Publication of BR0309362A publication Critical patent/BR0309362A/pt
Publication of BRPI0309362B1 publication Critical patent/BRPI0309362B1/pt

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • 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
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • H04N21/42623—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific decryption arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/23—Arrangements for conditional access to broadcast information or to broadcast-related services using cryptography, e.g. encryption, authentication, key distribution
    • 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
    • H04N21/4147—PVR [Personal Video Recorder]
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42661—Internal components of the client ; Characteristics thereof for reading from or writing on a magnetic storage medium, e.g. hard disk drive
    • 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
    • H04N21/43—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
    • H04N21/4408—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 encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
    • 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)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Storage Device Security (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

"MéTODO PARA GERENCIAMENTO DOS DIREITOS DE UM CONTEúDO CRIPTOGRAFADO EM UM GRAVADOR DIGITAL PESSOAL". O objetivo da presente invenção é propor um método de armazenamento de um evento criptografado por palavras de controle (CW) que garante o acesso a esse evento em qualquer momento desejado, mesmo se certas modificações na designação dos identificadores desses eventos ocorrerem no momento de armazenamento e no momento de visualização. Esse objetivo é alcançado por um método de armazenamento desse evento na unidade de recepção e descriptografação (CTB) conectada a uma unidade de segurança (SC), as referidas palavras de controle (CW) e os direitos necessários estando contidos nas mensagens de controle (ECM), caracterizado pelo fato de compreender as seguintes etapas: - armazenamento do evento criptografado, bem como das mensagens de controle (ECM) na unidade de armazenamento; - transmissão das mensagens de controle (ECM) para a unidade de segurança (SC); - verificação se os direitos de acesso a esse evento estão contidos na unidade de segurança (SC); - se esse for o caso, determinação de um recebimento (Q) de toda ou parte da mensagem de controle (ECM), graças a uma chave secreta (K) contida na unidade de segurança (SC) e específica para cada unidade de segurança; - armazenamento desse recebimento (Q) na unidade de armazenamento.
BRPI0309362A 2002-04-19 2003-04-15 método para gerenciamento dos direitos de um conteúdo criptografado em um gravador digital pessoal BRPI0309362B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH6642002 2002-04-19
PCT/IB2003/001514 WO2003090465A1 (fr) 2002-04-19 2003-04-15 Methode de gestion des droits d´un contenu encrypte et stocke sur un enregistreur numerique personnel

Publications (2)

Publication Number Publication Date
BR0309362A true BR0309362A (pt) 2005-02-15
BRPI0309362B1 BRPI0309362B1 (pt) 2017-03-07

Family

ID=28796659

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0309362A BRPI0309362B1 (pt) 2002-04-19 2003-04-15 método para gerenciamento dos direitos de um conteúdo criptografado em um gravador digital pessoal

Country Status (14)

Country Link
US (1) US7228439B2 (pt)
EP (1) EP1497986B1 (pt)
JP (1) JP2006505152A (pt)
KR (1) KR100928099B1 (pt)
CN (1) CN100344161C (pt)
AU (1) AU2003216665A1 (pt)
BR (1) BRPI0309362B1 (pt)
CA (1) CA2479656A1 (pt)
ES (1) ES2391555T3 (pt)
IL (2) IL164271A0 (pt)
MY (1) MY141187A (pt)
RU (1) RU2316135C2 (pt)
TW (1) TW200306746A (pt)
WO (1) WO2003090465A1 (pt)

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US7457414B1 (en) 2000-07-21 2008-11-25 The Directv Group, Inc. Super encrypted storage and retrieval of media programs with smartcard generated keys
US8140859B1 (en) 2000-07-21 2012-03-20 The Directv Group, Inc. Secure storage and replay of media programs using a hard-paired receiver and storage device
US7409562B2 (en) * 2001-09-21 2008-08-05 The Directv Group, Inc. Method and apparatus for encrypting media programs for later purchase and viewing
US7548624B2 (en) * 2004-01-16 2009-06-16 The Directv Group, Inc. Distribution of broadcast content for remote decryption and viewing
US7580523B2 (en) * 2004-01-16 2009-08-25 The Directv Group, Inc. Distribution of video content using client to host pairing of integrated receivers/decoders
US7599494B2 (en) * 2004-01-16 2009-10-06 The Directv Group, Inc. Distribution of video content using a trusted network key for sharing content
FR2871017B1 (fr) * 2004-05-28 2008-02-29 Viaccess Sa Procede de diffusion de donnees numeriques a un parc de terminaux recepteurs cible
EP1662788A1 (fr) * 2004-11-24 2006-05-31 Nagravision SA Unité de traitement de données audio/vidéo numériques et méthode de contrôle d'accès audites données
EP1722564A1 (fr) 2005-05-13 2006-11-15 Nagra France Sarl Méthode d'accès conditionnel local pour équipements mobiles
US9325944B2 (en) 2005-08-11 2016-04-26 The Directv Group, Inc. Secure delivery of program content via a removable storage medium
PT1773055E (pt) * 2005-10-07 2015-02-27 Nagra France Sas Método de verificação de direitos contidos num módulo de segurança
US8285988B2 (en) 2006-05-09 2012-10-09 Broadcom Corporation Method and system for command authentication to achieve a secure interface
US8032761B2 (en) 2006-05-09 2011-10-04 Broadcom Corporation Method and system for memory attack protection to achieve a secure interface
US8560829B2 (en) * 2006-05-09 2013-10-15 Broadcom Corporation Method and system for command interface protection to achieve a secure interface
US8775319B2 (en) 2006-05-15 2014-07-08 The Directv Group, Inc. Secure content transfer systems and methods to operate the same
EP1883239A1 (fr) * 2006-07-24 2008-01-30 Nagravision S.A. Méthode de stockage et d'exploitation d'un évènement audio/video diffusé
FR2923669B1 (fr) * 2007-11-09 2010-01-08 Viaccess Sa Procede de conditionnement et de controle d'acces a des contenus en codage hierarchique, processeur et emetteur pour ce procede
US8825548B2 (en) * 2009-06-30 2014-09-02 Ebay Inc. Secure authentication between multiple parties
US8547435B2 (en) 2009-09-20 2013-10-01 Selka Elektronik ve Internet Urunleri San.ve Tic.A.S Mobile security audio-video recorder with local storage and continuous recording loop
KR101223280B1 (ko) * 2009-10-09 2013-01-17 주식회사 디지캡 디지털 방송 제한수신 설정 시스템 및 그 방법

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* Cited by examiner, † Cited by third party
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DE69535971D1 (de) * 1994-07-08 2009-08-06 Sony Corp Empfang von Rundfunksignalen mit bedingtem Zugang
US6252964B1 (en) * 1995-04-03 2001-06-26 Scientific-Atlanta, Inc. Authorization of services in a conditional access system
US6246767B1 (en) * 1995-04-03 2001-06-12 Scientific-Atlanta, Inc. Source authentication of download information in a conditional access system
HRP970160A2 (en) * 1996-04-03 1998-02-28 Digco B V Method for providing a secure communication between two devices and application of this method
JP4110588B2 (ja) * 1997-03-19 2008-07-02 ソニー株式会社 データ受信装置および受信方法
EP0912052A1 (en) 1997-09-25 1999-04-28 CANAL+ Société Anonyme Method and apparatus for recording of encrypted digital data
EP0936774A1 (en) * 1998-02-13 1999-08-18 CANAL+ Société Anonyme Recording of scrambled digital data
US6697489B1 (en) * 1999-03-30 2004-02-24 Sony Corporation Method and apparatus for securing control words
US6289455B1 (en) * 1999-09-02 2001-09-11 Crypotography Research, Inc. Method and apparatus for preventing piracy of digital content
US7174512B2 (en) * 2000-12-01 2007-02-06 Thomson Licensing S.A. Portal for a communications system
US8312265B2 (en) * 2001-12-11 2012-11-13 Pinder Howard G Encrypting received content

Also Published As

Publication number Publication date
AU2003216665A1 (en) 2003-11-03
IL164271A0 (en) 2005-12-18
CN100344161C (zh) 2007-10-17
ES2391555T3 (es) 2012-11-27
MY141187A (en) 2010-03-31
WO2003090465A1 (fr) 2003-10-30
KR20040101450A (ko) 2004-12-02
US20030200444A1 (en) 2003-10-23
TW200306746A (en) 2003-11-16
EP1497986B1 (fr) 2012-08-01
RU2004130423A (ru) 2005-06-10
CA2479656A1 (fr) 2003-10-30
BRPI0309362B1 (pt) 2017-03-07
KR100928099B1 (ko) 2009-11-24
IL164271A (en) 2009-12-24
JP2006505152A (ja) 2006-02-09
EP1497986A1 (fr) 2005-01-19
CN1647532A (zh) 2005-07-27
US7228439B2 (en) 2007-06-05
RU2316135C2 (ru) 2008-01-27

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Legal Events

Date Code Title Description
B15K Others concerning applications: alteration of classification

Free format text: AS CLASSIFICACOES ANTERIORES ERAM: H04N 7/167 , H04N 5/00

Ipc: H04N 21/4408 (2011.01), H04N 21/426 (2011.01), H04

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]
B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 16A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2510 DE 12-02-2019 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.