[go: up one dir, main page]

AR049738A1 - Un metodo para aleatorizar parcialmente una corriente de datos - Google Patents

Un metodo para aleatorizar parcialmente una corriente de datos

Info

Publication number
AR049738A1
AR049738A1 ARP050103082A ARP050103082A AR049738A1 AR 049738 A1 AR049738 A1 AR 049738A1 AR P050103082 A ARP050103082 A AR P050103082A AR P050103082 A ARP050103082 A AR P050103082A AR 049738 A1 AR049738 A1 AR 049738A1
Authority
AR
Argentina
Prior art keywords
sequence
packets
transport
partially
payloads
Prior art date
Application number
ARP050103082A
Other languages
English (en)
Inventor
Andrew Augustine Wajs
Gerard Johan Dekker
David Neil Siedle
Wijk Roelof Van
Ronaldus Petrus Hoogenboom
James Stewart Crosbie Palmer
Thomas Franz Stockhammer
Original Assignee
Irdeto Access Bv
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 Irdeto Access Bv filed Critical Irdeto Access Bv
Publication of AR049738A1 publication Critical patent/AR049738A1/es

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
    • 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
    • H04N21/23476—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption by partially encrypting, e.g. encrypting the ending portion of a movie
    • 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
    • H04N21/44055—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 by partially decrypting, e.g. decrypting a video stream that has been partially encrypted
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

Un método para aleatorizar parcialmente una corriente de datos (6) incluyendo paquetes de corriente de transporte (7) donde cada paquete de corriente de transporte (7) tiene una cabecera (8) y una carga util (9) (payload), donde una secuencia de paquetes de corriente de transporte (7) tiene cargas utiles que transportan elementos datos codificados, dispuestos en unidades (15), que incluye: seleccionar paquetes de corriente de transporte (7) que forman una sub-secuencia de la secuencia, y aleatorizar al menos parte de las cargas utiles (9) de cada paquete de corriente de transporte (7) en la sub-secuencia. El método incluye, además, monitorear las cargas utiles (9) de al menos algunos de los paquetes de corriente de transporte (7) en la secuencia para la presencia de datos (22) que indican un límite entre dos unidades subsiguientes (15), y, para unidades seleccionadas (15), que incluyen al menos uno de los paquetes de corriente de transporte (7) que transportan datos que forman parte la unidad seleccionada (15) en la sub-secuencia.
ARP050103082A 2004-07-26 2005-07-26 Un metodo para aleatorizar parcialmente una corriente de datos AR049738A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2004/051604 WO2006010386A1 (en) 2004-07-26 2004-07-26 Method of partially scrambling a data stream

Publications (1)

Publication Number Publication Date
AR049738A1 true AR049738A1 (es) 2006-08-30

Family

ID=34958191

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP050103082A AR049738A1 (es) 2004-07-26 2005-07-26 Un metodo para aleatorizar parcialmente una corriente de datos

Country Status (11)

Country Link
US (1) US7978852B2 (es)
EP (1) EP1772013A1 (es)
JP (1) JP2007513539A (es)
CN (1) CN1890970B (es)
AR (1) AR049738A1 (es)
AU (1) AU2004321892B2 (es)
BR (1) BRPI0416621A (es)
CA (1) CA2565499C (es)
MY (1) MY139388A (es)
TW (1) TW200623880A (es)
WO (1) WO2006010386A1 (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007013436A (ja) * 2005-06-29 2007-01-18 Toshiba Corp 符号化ストリーム再生装置
KR20090002939A (ko) * 2007-07-05 2009-01-09 삼성전자주식회사 디지털 방송 서비스에 있어서 비디오 데이터 송수신 장치및 방법
FR2920067B1 (fr) * 2007-08-13 2014-11-28 Actimagine Procede et dispositif de chiffrement partiel d'un contenu numerique
US8068608B2 (en) 2007-12-17 2011-11-29 Broadcom Corporation Video processing system for scrambling video streams with dependent portions and methods for use therewith
US9078024B2 (en) 2007-12-18 2015-07-07 Broadcom Corporation Video processing system with user customized graphics for use with layered video coding and methods for use therewith
US8130823B2 (en) 2007-12-19 2012-03-06 Broadcom Corporation Channel adaptive video transmission system for use with layered video coding and methods for use therewith
US9210480B2 (en) 2007-12-20 2015-12-08 Broadcom Corporation Video processing system with layered video coding and methods for use therewith
US8416848B2 (en) 2007-12-21 2013-04-09 Broadcom Corporation Device adaptive video transmission system for use with layered video coding and methods for use therewith
US9143731B2 (en) 2008-01-02 2015-09-22 Broadcom Corporation Mobile video device for use with layered video coding and methods for use therewith
US8594191B2 (en) 2008-01-03 2013-11-26 Broadcom Corporation Video processing system and transcoder for use with layered video coding and methods for use therewith
US8144781B2 (en) 2008-01-04 2012-03-27 Broadcom Corporation Video processing system for scrambling layered video streams and methods for use therewith
US8666079B2 (en) * 2008-05-29 2014-03-04 Broadcom Corporation Decoding and encoding data
IL199486A0 (en) * 2009-06-22 2011-08-01 Nds Ltd Partial encryption using variable block-size parameters
JP5553945B2 (ja) * 2011-01-19 2014-07-23 テレフオンアクチーボラゲット エル エム エリクソン（パブル） ビットストリームサブセットの指示
KR102284042B1 (ko) * 2013-09-04 2021-07-30 삼성전자주식회사 송신 장치, 수신 장치 및 그 신호 처리 방법
US11206244B2 (en) * 2018-12-21 2021-12-21 ARRIS Enterprise LLC Method to preserve video data obfuscation for video frames
TWI706277B (zh) * 2019-02-01 2020-10-01 倍加科技股份有限公司 資料備份方法、電腦裝置及電腦可讀取的記錄媒體
CN111756767A (zh) * 2020-07-06 2020-10-09 成都卫士通信息产业股份有限公司 流媒体数据传输方法、装置、电子设备及计算机存储介质
US11741260B1 (en) * 2020-07-31 2023-08-29 United Services Automobile Association (Usaa) Systems and methods for selectively scrambling data

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3791720B2 (ja) * 1997-06-11 2006-06-28 ソニー株式会社 伝送装置及び伝送方法
US6415031B1 (en) * 1999-03-12 2002-07-02 Diva Systems Corporation Selective and renewable encryption for secure distribution of video on-demand
KR20010051292A (ko) * 1999-10-29 2001-06-25 마츠시타 덴끼 산교 가부시키가이샤 콘텐츠 데이터 변환 장치와 그 방법 및 콘텐츠 데이터변환 프로그램 저장 기록 매체
JP4703932B2 (ja) * 2000-04-06 2011-06-15 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ オブジェクト条件付きアクセスシステム
US20020164024A1 (en) * 2000-08-25 2002-11-07 Hiroshi Arakawa Data transmission method and data relay method
US7139398B2 (en) * 2001-06-06 2006-11-21 Sony Corporation Time division partial encryption
JP4448693B2 (ja) * 2002-01-02 2010-04-14 ソニー エレクトロニクス インク 重要なパケットの部分暗号化
WO2004045213A2 (en) 2002-11-13 2004-05-27 General Instrument Corporation Efficient distribution of encrypted content for multiple content access systems
JP2006510308A (ja) 2002-12-16 2006-03-23 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 映像データストリームを暗号化する方法及び装置

Also Published As

Publication number Publication date
AU2004321892B2 (en) 2008-02-14
TW200623880A (en) 2006-07-01
US20070098000A1 (en) 2007-05-03
MY139388A (en) 2009-09-30
CA2565499A1 (en) 2006-02-02
WO2006010386A1 (en) 2006-02-02
BRPI0416621A (pt) 2007-01-16
US7978852B2 (en) 2011-07-12
EP1772013A1 (en) 2007-04-11
AU2004321892A1 (en) 2006-02-02
CN1890970B (zh) 2010-09-08
JP2007513539A (ja) 2007-05-24
CN1890970A (zh) 2007-01-03
CA2565499C (en) 2010-11-30

Similar Documents

Publication Publication Date Title
AR049738A1 (es) Un metodo para aleatorizar parcialmente una corriente de datos
HUE057542T2 (hu) Eljárás és berendezés csomagszegmentálásra és összefûzésjelzésre kommunikációs rendszerben
WO2005048106A3 (en) Virtual private network with pseudo server
CN106161225B (zh) 用于处理vxlan报文的方法、装置及系统
EP4277207A3 (en) Network telemetry collection with packet metadata filtering
WO2004107713A3 (en) Packet combining on pci express
CO5600215A1 (es) Formato de datos rtp
MX2010010332A (es) Calculo de anchura de banda en una red de comunicacion conmutada en paquete.
EP1861963A4 (en) SYSTEM AND METHODS FOR IDENTIFYING THE PERFORMANCE OF A NETWORK PATH
IL184883A0 (en) Wireless communication method and system for routing packets via intra-mesh and extra-mesh routes
WO2007143717A3 (en) Methods, computer readable medium and apparatus for using short addresses in a communication system
DE602007010957D1 (de) System zur sicherung des zugangs zu einem ziel in einem virtuellen privaten netzwerk
DE602004010768D1 (de) Verkehrszustandsignalisierungsgerät, -system und -verfahren
EP1802037A3 (en) System and method for measuring network performance using real network traffic
ATE424085T1 (de) Generische routing-einkapselung über ein punkt-zu-punkt-protokoll
WO2009142854A3 (en) Method and apparatus to index network traffic meta-data
ATE488942T1 (de) Verfahren und vorrichtung zur effizienten übertrangung von voip verkehr
CN110620730B (zh) 比特索引显式复制(bier)倒数第二跳弹出
EP1916813A3 (en) Gateway apparatus and data transfer control method
EP2613497A3 (en) Method of transporting data in a sub-segmented manner
WO2006044122A3 (en) System and method for streaming sequential data through an automotive switch fabric network
JP2013073631A5 (es)
DE602006018916D1 (de) Mehrträger-CDMA-System
WO2002005485A3 (en) Apparatus and method for efficient hashing in networks
BRPI0513478A (pt) método para processar um pacote comprendendo um cabeçalho e uma carga útil e conduzido em uma rede de comunicação comutada por pacote e dispositivo encaminhador de pacotes

Legal Events

Date Code Title Description
FG Grant, registration