IL135413A0 - Method and apparatus for encrypted data stream transmission - Google Patents

Method and apparatus for encrypted data stream transmission

Info

Publication number
IL135413A0
IL135413A0 IL13541398A IL13541398A IL135413A0 IL 135413 A0 IL135413 A0 IL 135413A0 IL 13541398 A IL13541398 A IL 13541398A IL 13541398 A IL13541398 A IL 13541398A IL 135413 A0 IL135413 A0 IL 135413A0
Authority
IL
Israel
Prior art keywords
data stream
encrypted data
stream transmission
decoder
scrambled
Prior art date
Application number
IL13541398A
Other languages
English (en)
Original Assignee
Canal Plus 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=27238734&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IL135413(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Canal Plus Sa filed Critical Canal Plus Sa
Publication of IL135413A0 publication Critical patent/IL135413A0/xx

Links

Classifications

    • 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
    • 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]
    • H04N21/20—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
    • 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
    • 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
    • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
    • H04N21/4183—External card to be used in combination with the client device, e.g. for conditional access providing its own processing capabilities, e.g. external module for video decoding
    • 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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4367—Establishing a secure communication between the client and a peripheral device or smart card
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Communication Control (AREA)
  • Storage Device Security (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Circuits Of Receivers In General (AREA)
  • Computer And Data Communications (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Buffer Packaging (AREA)
  • Materials For Medical Uses (AREA)
IL13541398A 1997-10-02 1998-10-02 Method and apparatus for encrypted data stream transmission IL135413A0 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP97402322 1997-10-02
EP98401388 1998-06-09
EP98401389 1998-06-09
PCT/IB1998/001610 WO1999018729A1 (en) 1997-10-02 1998-10-02 Method and apparatus for encrypted data stream transmission

Publications (1)

Publication Number Publication Date
IL135413A0 true IL135413A0 (en) 2001-05-20

Family

ID=27238734

Family Applications (1)

Application Number Title Priority Date Filing Date
IL13541398A IL135413A0 (en) 1997-10-02 1998-10-02 Method and apparatus for encrypted data stream transmission

Country Status (19)

Country Link
US (1) USRE40334E1 (de)
EP (1) EP1020080B1 (de)
JP (1) JP2001519629A (de)
KR (1) KR100672983B1 (de)
CN (1) CN1171454C (de)
AT (1) ATE273597T1 (de)
AU (1) AU748518B2 (de)
BR (1) BRPI9812703B1 (de)
CA (1) CA2305644A1 (de)
DE (1) DE69825611T2 (de)
ES (1) ES2236937T3 (de)
HR (1) HRP20000165A2 (de)
HU (1) HUP0100232A3 (de)
ID (1) ID23916A (de)
IL (1) IL135413A0 (de)
NO (1) NO325610B1 (de)
PL (1) PL339572A1 (de)
TR (1) TR200001560T2 (de)
WO (1) WO1999018729A1 (de)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7177429B2 (en) 2000-12-07 2007-02-13 Blue Spike, Inc. System and methods for permitting open access to data objects and for securing data within the data objects
NZ504971A (en) * 1997-12-10 2002-02-01 Thomson Licensing S Method for protecting the audio/visual data across the NRSS interface
TW412909B (en) † 1998-05-07 2000-11-21 Kudelski Sa Mechanism of matching between a receiver and a security module
US7068787B1 (en) * 1998-10-23 2006-06-27 Contentguard Holdings, Inc. System and method for protection of digital works
US7415110B1 (en) 1999-03-24 2008-08-19 Intel Corporation Method and apparatus for the generation of cryptographic keys
US7664264B2 (en) 1999-03-24 2010-02-16 Blue Spike, Inc. Utilizing data reduction in steganographic and cryptographic systems
US7336785B1 (en) * 1999-07-09 2008-02-26 Koninklijke Philips Electronics N.V. System and method for copy protecting transmitted information
WO2001018628A2 (en) 1999-08-04 2001-03-15 Blue Spike, Inc. A secure personal content server
US6477252B1 (en) 1999-08-29 2002-11-05 Intel Corporation Digital video content transmission ciphering and deciphering method and apparatus
US7068786B1 (en) 1999-08-29 2006-06-27 Intel Corporation Dual use block/stream cipher
US6920221B1 (en) 1999-08-29 2005-07-19 Intel Corporation Method and apparatus for protected exchange of status and secret values between a video source application and a video hardware interface
US6731758B1 (en) 1999-08-29 2004-05-04 Intel Corporation Digital video content transmission ciphering and deciphering method and apparatus
US6947558B1 (en) 1999-08-29 2005-09-20 Intel Corporation Stream cipher having a shuffle network combiner function
KR100605825B1 (ko) * 1999-09-14 2006-07-31 삼성전자주식회사 하드 디스크 드라이브를 구비하는 방송 수신 시스템의 복사 방지장치 및 방법
DE19957466A1 (de) * 1999-11-24 2001-05-31 Deutsche Telekom Ag Verfahren zur Verteilung von Kino-Programmen
PT1166562E (pt) * 2000-01-05 2011-09-05 Nds Ltd Sistema e método de entrega de conteúdo digital
US7003107B2 (en) 2000-05-23 2006-02-21 Mainstream Encryption Hybrid stream cipher
JP4691244B2 (ja) * 2000-11-10 2011-06-01 株式会社東芝 限定受信システムの限定受信装置及びセキュリティモジュール、限定受信システム、限定受信装置認証方法及び暗号通信方法
JP2002281476A (ja) * 2001-03-15 2002-09-27 Matsushita Electric Ind Co Ltd デジタル放送限定受信装置
FR2825877B1 (fr) 2001-06-12 2003-09-19 Canal Plus Technologies Procede de controle d'acces a un programme crypte
FR2828781B1 (fr) * 2001-08-14 2003-11-14 At Sky Systeme de securisation du desembrouillage des donnees numeriques sur un poste client ouvert
US7409562B2 (en) * 2001-09-21 2008-08-05 The Directv Group, Inc. Method and apparatus for encrypting media programs for later purchase and viewing
US7287275B2 (en) 2002-04-17 2007-10-23 Moskowitz Scott A Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth
IL155416A0 (en) * 2003-04-13 2003-11-23 Nds Ltd System for securing access to data streams
TW200511860A (en) * 2003-05-14 2005-03-16 Nagracard Sa Duration computing method in a security module
EP1492346A1 (de) * 2003-06-23 2004-12-29 Nagracard S.A. System zur gleichzeitigem Verarbeitung von mindestens 2 Kanälen mit bedingtem Zugriff
EP1523188A1 (de) * 2003-10-06 2005-04-13 Canal + Technologies Paarung eines externen Sicherheitsmoduls
FR2865592A1 (fr) * 2004-01-28 2005-07-29 Noel Vogt Procede de diffusion securisee de programmes de television, systeme de diffusion, decodeur et support de donnees correspondants.
US7765404B2 (en) * 2004-06-29 2010-07-27 Nokia Corporation Providing content in a communication system
EP1662788A1 (de) * 2004-11-24 2006-05-31 Nagravision SA Verfahren und Vorrichtung für die Zugangskontrolle von Audio/Video-daten
KR100820810B1 (ko) * 2005-04-29 2008-04-10 엘지전자 주식회사 디지털 수신 시스템의 제한 수신 방법
US9325944B2 (en) 2005-08-11 2016-04-26 The Directv Group, Inc. Secure delivery of program content via a removable storage medium
FR2890267B1 (fr) * 2005-08-26 2007-10-05 Viaccess Sa Procede d'etablissement d'une cle de session et unites pour la mise en oeuvre du procede
EP1784016A1 (de) 2005-11-03 2007-05-09 Nagravision S.A. Verfahren zur Sicherung der Datenübertragung zwischen einem Multimediaendgerät und einem Sicherheitsmodul
US8996421B2 (en) 2006-05-15 2015-03-31 The Directv Group, Inc. Methods and apparatus to conditionally authorize content delivery at broadcast headends in pay delivery systems
US8775319B2 (en) 2006-05-15 2014-07-08 The Directv Group, Inc. Secure content transfer systems and methods to operate the same
US7992175B2 (en) 2006-05-15 2011-08-02 The Directv Group, Inc. Methods and apparatus to provide content on demand in content broadcast systems
US9178693B2 (en) 2006-08-04 2015-11-03 The Directv Group, Inc. Distributed media-protection systems and methods to operate the same
US9225761B2 (en) 2006-08-04 2015-12-29 The Directv Group, Inc. Distributed media-aggregation systems and methods to operate the same
EP2018059A1 (de) * 2007-07-19 2009-01-21 Panasonic Corporation Digitaler Videorundfunkempfänger und Verfahren zur Entschlüsselung von digitalen Datenströmen
US9143493B2 (en) 2007-12-20 2015-09-22 The Directv Group, Inc. Method and apparatus for communicating between a user device and a gateway device to form a system to allow a partner service to be provided to the user device
EP2091256A1 (de) 2008-02-18 2009-08-19 Nagravision S.A. Verfahren zur Entfernung von Artefakten aus einem gesendeten digitalen Audio-/Videosignal
KR20100134745A (ko) * 2008-04-14 2010-12-23 코닌클리케 필립스 일렉트로닉스 엔.브이. 분산형 아이덴티피케이션을 위한 방법, 네트워크 내의 스테이션
EP2219374A1 (de) * 2009-02-13 2010-08-18 Irdeto Access B.V. Sichere Bereitstellung eines Kontrollworts aus einer Chipkarte an ein Modul mit bedingtem Zugang
EP2227014B1 (de) * 2009-03-02 2019-10-02 Irdeto B.V. Sichere bereitstellung geheimer daten von einem sender an einen empfänger
EP2373019A1 (de) 2010-03-29 2011-10-05 Nagravision S.A. Sichere Decodierung eines Audio- bzw. Videodatenstroms
CN102164319A (zh) * 2011-04-08 2011-08-24 北京数字太和科技有限责任公司 传输码流ts的安全传输方法和装置
US8745654B1 (en) 2012-02-09 2014-06-03 The Directv Group, Inc. Method and system for managing digital rights for content
US9467726B1 (en) 2015-09-30 2016-10-11 The Directv Group, Inc. Systems and methods for provisioning multi-dimensional rule based entitlement offers
US11184149B2 (en) * 2019-02-19 2021-11-23 International Business Machines Corporation Computing range queries over encrypted data

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5091938B1 (en) * 1990-08-06 1997-02-04 Nippon Denki Home Electronics Digital data cryptographic system
US5185794A (en) * 1990-08-06 1993-02-09 Nec Home Electronics, Ltd. System and method for scrambling and/or descrambling a video signal
FR2698510B1 (fr) * 1992-11-26 1994-12-23 Schlumberger Ind Sa Réseau de communication.
MY125706A (en) * 1994-08-19 2006-08-30 Thomson Consumer Electronics High speed signal processing smart card
DE69622233T2 (de) * 1995-09-05 2003-03-27 Hitachi Ltd Verfahren zur digitalen Zugangskontrolle
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
US6061451A (en) * 1996-09-03 2000-05-09 Digital Vision Laboratories Corporation Apparatus and method for receiving and decrypting encrypted data and protecting decrypted data from illegal use
FR2755809B1 (fr) * 1996-11-13 1999-05-28 Thomson Multimedia Sa Procede de protection d'information transmise d'un element de securite vers un decodeur et systeme de protection utilisant un tel procede

Also Published As

Publication number Publication date
CN1280742A (zh) 2001-01-17
NO20001649L (no) 2000-06-02
ES2236937T3 (es) 2005-07-16
BR9812703A (pt) 2000-08-22
ATE273597T1 (de) 2004-08-15
DE69825611T2 (de) 2005-06-30
PL339572A1 (en) 2000-12-18
ID23916A (id) 2000-05-25
JP2001519629A (ja) 2001-10-23
BRPI9812703B1 (pt) 2015-12-15
CA2305644A1 (en) 1999-04-15
AU9278298A (en) 1999-04-27
NO20001649D0 (no) 2000-03-30
USRE40334E1 (en) 2008-05-20
CN1171454C (zh) 2004-10-13
KR100672983B1 (ko) 2007-01-22
EP1020080B1 (de) 2004-08-11
WO1999018729A1 (en) 1999-04-15
EP1020080A1 (de) 2000-07-19
HRP20000165A2 (en) 2001-04-30
KR20010030925A (ko) 2001-04-16
NO325610B1 (no) 2008-06-23
AU748518B2 (en) 2002-06-06
HUP0100232A2 (hu) 2001-05-28
DE69825611D1 (de) 2004-09-16
TR200001560T2 (tr) 2000-12-21
HUP0100232A3 (en) 2001-10-29

Similar Documents

Publication Publication Date Title
IL135413A0 (en) Method and apparatus for encrypted data stream transmission
WO2003032574A1 (fr) Appareil de transmission et de reception de contenu, et programme de transmission et de reception de contenu
HK1019683A1 (en) Method for providing a secure communication between two devices and device for using the method
RU2000111530A (ru) Способ и устройство для шифрованной трансляции потока данных
EP0840477A3 (de) Hochsicheres Verfahren zur geheimen Schlüsselübertragung mit Beschränkung des Schadens bei Bekanntwerden oder Dekodierung des geheimen Schlüssels
KR920702158A (ko) 텔레비젼 신호 디코더용 외부 보안 모듈
TW370661B (en) Encrypted communication system that limits the damage caused when a secret key has been leaked
EP0652661A3 (de) Verschlüsselungs- und Scramblereinrichtung unter Verwendung eines passiven optischen Netzwerks mit gemeinsamem Medium
WO1998027687A3 (en) Method and apparatus for providing a cryptographically secure interface between the decryption engine and the system decoder of a digital television receiver
CA2437018A1 (en) Selective encryption to enable multiple decryption keys
NZ503813A (en) Method and apparatus for recording of encrypted digital data on a portable token
BR9407177A (pt) Processos para criptografar singularmente cada serviço no local de transmissão e para descriptografar um serviço selecionado no local de recepção em um sistema de comunicações aparelho criptografador para criptografar singularmente uma pluralidade de serviços num local de transmissão e para transmitir os serviços criptografados para um local de recepção remoto e para uso em um local de recepção em um sistema de comunicações
JP2001119357A (ja) 限定受信方式における関連情報の処理装置
CA2226831A1 (en) Decryption of retransmitted data in an encrypted communication system
WO2002041101A3 (en) Method and system for transmitting data with enhanced security that conforms to a network protocol
US6430290B1 (en) Conditional access
JP2001333032A (ja) 限定受信システム
GB2359226B (en) A secure data transfer system
KR20060113091A (ko) 디지털 수신기의 제한 수신 방법
JPH10336128A (ja) ディジタル放送のスクランブルシステム
WO2001046773A3 (en) Method and apparatus for transmitting data
RU98120105A (ru) Способ обеспечения защищенной связи между двумя устройствами и его применение
EP0230327A3 (de) Teletext-Übertragungssysteme
CN1140378A (zh) 有线电视信号加密与解密方法
TW289194B (en) Software protection method for software broadcasting system and device