FI941316A0 - Menetelmä digitaalista informaatiota sisältävän bittivirran salaamiseksi ja salauksen purkamiseksi - Google Patents

Menetelmä digitaalista informaatiota sisältävän bittivirran salaamiseksi ja salauksen purkamiseksi

Info

Publication number
FI941316A0
FI941316A0 FI941316A FI941316A FI941316A0 FI 941316 A0 FI941316 A0 FI 941316A0 FI 941316 A FI941316 A FI 941316A FI 941316 A FI941316 A FI 941316A FI 941316 A0 FI941316 A0 FI 941316A0
Authority
FI
Finland
Prior art keywords
decryption
encryption
procedure
bit stream
digital information
Prior art date
Application number
FI941316A
Other languages
English (en)
Swedish (sv)
Other versions
FI95756B (fi
FI941316A (fi
FI95756C (fi
Inventor
Mauri Kangas
Original Assignee
Nokia Technology Gmbh
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 Nokia Technology Gmbh filed Critical Nokia Technology Gmbh
Priority to FI941316A priority Critical patent/FI95756C/fi
Publication of FI941316A0 publication Critical patent/FI941316A0/fi
Priority to EP95103794A priority patent/EP0674440B1/en
Priority to DE69509697T priority patent/DE69509697T2/de
Publication of FI941316A publication Critical patent/FI941316A/fi
Publication of FI95756B publication Critical patent/FI95756B/fi
Application granted granted Critical
Publication of FI95756C publication Critical patent/FI95756C/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • 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
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/23605—Creation or processing of packetized elementary streams [PES]
    • 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
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
    • H04N21/23895—Multiplex stream processing, e.g. multiplex stream encrypting involving multiplex 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]
    • H04N21/40—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
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
    • H04N21/43853—Multiplex stream processing, e.g. multiplex stream decrypting involving multiplex stream decryption
    • 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
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
FI941316A 1994-03-21 1994-03-21 Menetelmä digitaalista informaatiota sisältävän bittivirran salaamiseksi ja salauksen purkamiseksi FI95756C (fi)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI941316A FI95756C (fi) 1994-03-21 1994-03-21 Menetelmä digitaalista informaatiota sisältävän bittivirran salaamiseksi ja salauksen purkamiseksi
EP95103794A EP0674440B1 (en) 1994-03-21 1995-03-16 A process for encryption and decryption of a bit stream containing digital information
DE69509697T DE69509697T2 (de) 1994-03-21 1995-03-16 Verfahren zum Ver- und Entschlüsseln eines Bitstromes mit digitaler Information

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI941316A FI95756C (fi) 1994-03-21 1994-03-21 Menetelmä digitaalista informaatiota sisältävän bittivirran salaamiseksi ja salauksen purkamiseksi
FI941316 1994-03-21

Publications (4)

Publication Number Publication Date
FI941316A0 true FI941316A0 (fi) 1994-03-21
FI941316A FI941316A (fi) 1995-09-22
FI95756B FI95756B (fi) 1995-11-30
FI95756C FI95756C (fi) 1996-03-11

Family

ID=8540357

Family Applications (1)

Application Number Title Priority Date Filing Date
FI941316A FI95756C (fi) 1994-03-21 1994-03-21 Menetelmä digitaalista informaatiota sisältävän bittivirran salaamiseksi ja salauksen purkamiseksi

Country Status (3)

Country Link
EP (1) EP0674440B1 (fi)
DE (1) DE69509697T2 (fi)
FI (1) FI95756C (fi)

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FR2740636B1 (fr) * 1995-10-31 1997-11-28 Thomson Multimedia Sa Procede permettant la mise en cascade de modules d'acces conditionnel detachables, circuit d'insertion d'une sequence predefinie et circuit de detection de ladite sequence pour la mise en oeuvre du procede
JP3176030B2 (ja) * 1996-01-08 2001-06-11 株式会社東芝 複製制御方法及び複製制御装置
FI100563B (fi) * 1996-01-30 1997-12-31 Nokia Oy Ab Digitaalisten esitysobjektien salaus lähetyksessä ja tallennuksessa
JPH11298878A (ja) 1998-04-08 1999-10-29 Nec Corp 画像スクランブル方法およびそれを実施する装置
US6229895B1 (en) 1999-03-12 2001-05-08 Diva Systems Corp. Secure distribution of video on-demand
US7730300B2 (en) 1999-03-30 2010-06-01 Sony Corporation Method and apparatus for protecting the transfer of data
US6697489B1 (en) 1999-03-30 2004-02-24 Sony Corporation Method and apparatus for securing control words
US7039614B1 (en) 1999-11-09 2006-05-02 Sony Corporation Method for simulcrypting scrambled data to a plurality of conditional access devices
US7127619B2 (en) 2001-06-06 2006-10-24 Sony Corporation Decoding and decryption of partially encrypted information
US7895616B2 (en) 2001-06-06 2011-02-22 Sony Corporation Reconstitution of program streams split across multiple packet identifiers
US7747853B2 (en) 2001-06-06 2010-06-29 Sony Corporation IP delivery of secure digital content
US7765567B2 (en) 2002-01-02 2010-07-27 Sony Corporation Content replacement by PID mapping
KR100952799B1 (ko) * 2002-01-02 2010-04-14 소니 일렉트로닉스 인코포레이티드 부분적으로 암호화된 정보의 암호해독 및 디코딩
US7823174B2 (en) 2002-01-02 2010-10-26 Sony Corporation Macro-block based content replacement by PID mapping
GB0208536D0 (en) * 2002-04-13 2002-05-22 Bentley Nicholas Copy protection and restricted viewing software programmes for MPEG1 encoded video data and MP3 audio subset of codec
US7933411B2 (en) 2002-06-28 2011-04-26 Trident Microsystems (Far East) Ltd. Method of constructing MPEG program streams from encrypted MPEG transport streams
KR100940202B1 (ko) * 2002-08-29 2010-02-10 삼성전자주식회사 일방향 함수를 사용하여 계층적으로 암호화하는 장치 및방법
US8818896B2 (en) 2002-09-09 2014-08-26 Sony Corporation Selective encryption with coverage encryption
US8572408B2 (en) 2002-11-05 2013-10-29 Sony Corporation Digital rights management of a digital device
US7724907B2 (en) 2002-11-05 2010-05-25 Sony Corporation Mechanism for protecting the transfer of digital content
US7088741B2 (en) 2003-05-01 2006-08-08 Genesis Microchip Inc. Using an auxilary channel for video monitor training
US8059673B2 (en) 2003-05-01 2011-11-15 Genesis Microchip Inc. Dynamic resource re-allocation in a packet based video display interface
US7839860B2 (en) 2003-05-01 2010-11-23 Genesis Microchip Inc. Packet based video display interface
US7068686B2 (en) 2003-05-01 2006-06-27 Genesis Microchip Inc. Method and apparatus for efficient transmission of multimedia data packets
US7424558B2 (en) 2003-05-01 2008-09-09 Genesis Microchip Inc. Method of adaptively connecting a video source and a video display
US8204076B2 (en) 2003-05-01 2012-06-19 Genesis Microchip Inc. Compact packet based multimedia interface
US7733915B2 (en) 2003-05-01 2010-06-08 Genesis Microchip Inc. Minimizing buffer requirements in a digital video system
US7405719B2 (en) 2003-05-01 2008-07-29 Genesis Microchip Inc. Using packet transfer for driving LCD panel driver electronics
US8068485B2 (en) 2003-05-01 2011-11-29 Genesis Microchip Inc. Multimedia interface
GB2404467A (en) 2003-07-31 2005-02-02 Sony Uk Ltd Access control for digital content
US7487273B2 (en) 2003-09-18 2009-02-03 Genesis Microchip Inc. Data packet based stream transport scheduler wherein transport data link does not include a clock line
US7800623B2 (en) 2003-09-18 2010-09-21 Genesis Microchip Inc. Bypassing pixel clock generation and CRTC circuits in a graphics controller chip
US7634090B2 (en) * 2003-09-26 2009-12-15 Genesis Microchip Inc. Packet based high definition high-bandwidth digital content protection
US7853980B2 (en) 2003-10-31 2010-12-14 Sony Corporation Bi-directional indices for trick mode video-on-demand
GB0418279D0 (en) 2004-08-16 2004-09-15 Nds Ltd System for providing access to operation information
EP2456223B1 (en) * 2004-08-16 2016-08-10 NDS Limited System for providing access to information needed for performing trick mode operations on a video elementary stream
DE202004016235U1 (de) * 2004-10-19 2005-01-13 Klein, Frederic Zugangs- und Abrechnungskontrolle für digitale Transportströme wie DVB und DAB Signale aus Gemeinschaftsantennenanlagen
JP2006140625A (ja) * 2004-11-10 2006-06-01 Toshiba Corp 情報処理装置
US8041190B2 (en) 2004-12-15 2011-10-18 Sony Corporation System and method for the creation, synchronization and delivery of alternate content
US7895617B2 (en) 2004-12-15 2011-02-22 Sony Corporation Content substitution editor
US8185921B2 (en) 2006-02-28 2012-05-22 Sony Corporation Parental control of displayed content using closed captioning
US8156238B2 (en) 2009-05-13 2012-04-10 Stmicroelectronics, Inc. Wireless multimedia transport method and apparatus
US8860888B2 (en) 2009-05-13 2014-10-14 Stmicroelectronics, Inc. Method and apparatus for power saving during video blanking periods
US8429440B2 (en) 2009-05-13 2013-04-23 Stmicroelectronics, Inc. Flat panel display driver method and system
US8760461B2 (en) 2009-05-13 2014-06-24 Stmicroelectronics, Inc. Device, system, and method for wide gamut color space support
US8370554B2 (en) 2009-05-18 2013-02-05 Stmicroelectronics, Inc. Operation of video source and sink with hot plug detection not asserted
US8582452B2 (en) 2009-05-18 2013-11-12 Stmicroelectronics, Inc. Data link configuration by a receiver in the absence of link training data
US8468285B2 (en) 2009-05-18 2013-06-18 Stmicroelectronics, Inc. Operation of video source and sink with toggled hot plug detection
US8291207B2 (en) 2009-05-18 2012-10-16 Stmicroelectronics, Inc. Frequency and symbol locking using signal generated clock frequency and symbol identification
US8363831B2 (en) 2009-09-23 2013-01-29 Intel Corporation Method and apparatus for allowing software access to navigational data in a decrypted media stream while protecting stream payloads
CN101710964B (zh) * 2009-11-17 2012-09-05 深圳国微技术有限公司 Mpeg2传输流数据包的加密和解密方法
US8671234B2 (en) 2010-05-27 2014-03-11 Stmicroelectronics, Inc. Level shifting cable adaptor and chip system for use with dual-mode multi-media device
US9008308B2 (en) 2012-02-08 2015-04-14 Vixs Systems, Inc Container agnostic decryption device and methods for use therewith
CN106454408A (zh) * 2016-10-20 2017-02-22 天脉聚源(北京)传媒科技有限公司 一种实现视频流安全传送的方法、装置及系统

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DE69327675T2 (de) * 1992-07-21 2000-08-17 Matsushita Electric Ind Co Ltd Ver- und Entschlüsselungsvorrichtung
US5400401A (en) * 1992-10-30 1995-03-21 Scientific Atlanta, Inc. System and method for transmitting a plurality of digital services

Also Published As

Publication number Publication date
EP0674440A2 (en) 1995-09-27
FI95756B (fi) 1995-11-30
FI941316A (fi) 1995-09-22
DE69509697D1 (de) 1999-06-24
EP0674440B1 (en) 1999-05-19
FI95756C (fi) 1996-03-11
DE69509697T2 (de) 1999-11-11
EP0674440A3 (en) 1996-10-23

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Legal Events

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BB Publication of examined application