ATE406047T1 - Verfahren zum sichern von durch einen ausstrahler ausgestrahltem verschlüsseltem inhalt - Google Patents

Verfahren zum sichern von durch einen ausstrahler ausgestrahltem verschlüsseltem inhalt

Info

Publication number
ATE406047T1
ATE406047T1 AT05708066T AT05708066T ATE406047T1 AT E406047 T1 ATE406047 T1 AT E406047T1 AT 05708066 T AT05708066 T AT 05708066T AT 05708066 T AT05708066 T AT 05708066T AT E406047 T1 ATE406047 T1 AT E406047T1
Authority
AT
Austria
Prior art keywords
broadcast
encrypted content
keys
proportional
encrypted
Prior art date
Application number
AT05708066T
Other languages
English (en)
Inventor
Cedric Groux
Rached Ksontini
Henri Kudelski
Original Assignee
Nagracard 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 Nagracard Sa filed Critical Nagracard Sa
Application granted granted Critical
Publication of ATE406047T1 publication Critical patent/ATE406047T1/de

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]
    • H04N21/60—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
    • 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]
    • H04N21/20—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Storage Device Security (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
AT05708066T 2004-03-10 2005-03-01 Verfahren zum sichern von durch einen ausstrahler ausgestrahltem verschlüsseltem inhalt ATE406047T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04100969A EP1575292A1 (de) 2004-03-10 2004-03-10 Verfahren zur Sicherung von übertragenem verschlüsseltem Inhalt

Publications (1)

Publication Number Publication Date
ATE406047T1 true ATE406047T1 (de) 2008-09-15

Family

ID=34814392

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05708066T ATE406047T1 (de) 2004-03-10 2005-03-01 Verfahren zum sichern von durch einen ausstrahler ausgestrahltem verschlüsseltem inhalt

Country Status (7)

Country Link
EP (2) EP1575292A1 (de)
CN (2) CN100542270C (de)
AT (1) ATE406047T1 (de)
CA (1) CA2557502C (de)
DE (1) DE602005009151D1 (de)
ES (1) ES2313290T3 (de)
WO (1) WO2005099264A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2963135B1 (fr) * 2010-07-22 2013-02-08 Viaccess Sa Procede de protection d'un contenu
CN103117000B (zh) * 2012-08-22 2015-05-13 北京亚太轩豪科技发展有限公司 一种路况监测装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19511298B4 (de) * 1995-03-28 2005-08-18 Deutsche Telekom Ag Verfahren zur Erteilung und zum Entzug der Berechtigung zum Empfang von Rundfunksendungen und Decoder
JP3565715B2 (ja) * 1998-07-02 2004-09-15 松下電器産業株式会社 放送システムと放送送受信装置
AU4446601A (en) * 2000-04-17 2001-10-30 Nagravision Sa Secure data transmission system and method
FR2823039B1 (fr) * 2001-03-30 2003-08-01 Canal Plus Technologies Systeme et procede de transmission d'informations chiffrees a cle chiffree

Also Published As

Publication number Publication date
ES2313290T3 (es) 2009-03-01
CN100542270C (zh) 2009-09-16
WO2005099264A1 (fr) 2005-10-20
EP1575292A1 (de) 2005-09-14
EP1723790A1 (de) 2006-11-22
CA2557502C (en) 2013-04-30
CA2557502A1 (en) 2005-10-20
CN1930882A (zh) 2007-03-14
EP1723790B1 (de) 2008-08-20
CN1930881A (zh) 2007-03-14
DE602005009151D1 (de) 2008-10-02

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Legal Events

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