ATE270798T1 - Teilverschlüsselung von zusammengesetzten bitströmen - Google Patents

Teilverschlüsselung von zusammengesetzten bitströmen

Info

Publication number
ATE270798T1
ATE270798T1 AT01998064T AT01998064T ATE270798T1 AT E270798 T1 ATE270798 T1 AT E270798T1 AT 01998064 T AT01998064 T AT 01998064T AT 01998064 T AT01998064 T AT 01998064T AT E270798 T1 ATE270798 T1 AT E270798T1
Authority
AT
Austria
Prior art keywords
bitstream
encrypted
assembled
data
bitreams
Prior art date
Application number
AT01998064T
Other languages
English (en)
Inventor
Michael Mead Truman
Original Assignee
Dolby Lab Licensing Corp
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 Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Application granted granted Critical
Publication of ATE270798T1 publication Critical patent/ATE270798T1/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]
    • H04N21/20—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
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Storage Device Security (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
AT01998064T 2000-12-15 2001-12-17 Teilverschlüsselung von zusammengesetzten bitströmen ATE270798T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25595400P 2000-12-15 2000-12-15
PCT/US2001/049333 WO2002062008A2 (en) 2000-12-15 2001-12-17 Partial encryption of assembled bitstreams

Publications (1)

Publication Number Publication Date
ATE270798T1 true ATE270798T1 (de) 2004-07-15

Family

ID=22970527

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01998064T ATE270798T1 (de) 2000-12-15 2001-12-17 Teilverschlüsselung von zusammengesetzten bitströmen

Country Status (7)

Country Link
EP (1) EP1342333B1 (de)
JP (1) JP2004519131A (de)
AT (1) ATE270798T1 (de)
AU (1) AU2002249824A1 (de)
CA (1) CA2436678A1 (de)
DE (1) DE60104213T2 (de)
WO (1) WO2002062008A2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7127619B2 (en) * 2001-06-06 2006-10-24 Sony Corporation Decoding and decryption of partially encrypted information
US7630492B2 (en) 2002-10-03 2009-12-08 Daniel Lecomte Secure audio stream scramble system
FR2845543B1 (fr) * 2002-10-03 2005-02-04 Medialive Systeme d'embrouillage securise de flux audio
FR2879878B1 (fr) 2004-12-22 2007-05-25 Thales Sa Procede de chiffrement selectif compatible pour flux video
WO2009007876A2 (en) * 2007-07-06 2009-01-15 Koninklijke Philips Electronics N.V. Warermarking and encryption of entropy-coded data using additive huffman table
US20100278338A1 (en) * 2009-05-04 2010-11-04 Mediatek Singapore Pte. Ltd. Coding device and method with reconfigurable and scalable encryption/decryption modules

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69327675T2 (de) * 1992-07-21 2000-08-17 Matsushita Electric Industrial Co., Ltd. Ver- und Entschlüsselungsvorrichtung
DE19907964C1 (de) * 1999-02-24 2000-08-10 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Erzeugen eines verschlüsselten Datenstroms und Vorrichtung und Verfahren zum Erzeugen eines entschlüsselten Audio- und/oder Videosignals

Also Published As

Publication number Publication date
WO2002062008A8 (en) 2003-10-30
WO2002062008A2 (en) 2002-08-08
EP1342333B1 (de) 2004-07-07
AU2002249824A1 (en) 2002-08-12
EP1342333A2 (de) 2003-09-10
CA2436678A1 (en) 2002-08-08
DE60104213D1 (de) 2004-08-12
DE60104213T2 (de) 2005-08-25
JP2004519131A (ja) 2004-06-24
WO2002062008A3 (en) 2003-01-03

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Legal Events

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