NO20064311L - Fremgangsmate og anordning for kryptering av en datastrom - Google Patents

Fremgangsmate og anordning for kryptering av en datastrom

Info

Publication number
NO20064311L
NO20064311L NO20064311A NO20064311A NO20064311L NO 20064311 L NO20064311 L NO 20064311L NO 20064311 A NO20064311 A NO 20064311A NO 20064311 A NO20064311 A NO 20064311A NO 20064311 L NO20064311 L NO 20064311L
Authority
NO
Norway
Prior art keywords
encryption
recorders
streams
circuit
encrypting
Prior art date
Application number
NO20064311A
Other languages
English (en)
Inventor
Antonius A M Staring
Wiebe De Haan
Menno A Treffers
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of NO20064311L publication Critical patent/NO20064311L/no

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00485—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier
    • G11B20/00492—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier wherein content or user data is encrypted

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Storage Device Security (AREA)

Abstract

Gjeldende lovgivning forutsetter en mulighet for kryptering når fjernsynsprogrammer som er mottatt ved en kringkastning blir lagret. Imidlertid vil tidligere avspillingsanordninger ikke være i stand til å avspille slike krypterte data på vanlig måte, men eventuelt på en ukorrekt måte. Dette kan resultere i problemer slik som skade på høyttalere. Derfor har oppfinnelsen til hensikt å skjule eventuelle slike strømmer som kan forårsake skader ved med hensikt å forsyne slike strømmer med en ukorrekt identifikasjon i løpet krypteringsprosessen. Oppfinnelsen tilveiebringer blant annet en fremgangsmåte og anordning, som for eksempel en krets, for kryptering og en fremgangsmåte og en anordning, som for eksempel en krets, for dekryptering. Oppfinnelsen er spesielt egnet for DVD-opptakere, men kan også benyttes for andre videoopptakere og/eller audioopptakere. Oppfinnelsen kan til og med bli anvendt for kryptering av data som ikke har audiovisuell karakter.
NO20064311A 2004-02-23 2006-09-22 Fremgangsmate og anordning for kryptering av en datastrom NO20064311L (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04100708 2004-02-23
EP04100754 2004-02-26
PCT/IB2005/050594 WO2005081544A2 (en) 2004-02-23 2005-02-17 Method and circuit for encrypting a data stream

Publications (1)

Publication Number Publication Date
NO20064311L true NO20064311L (no) 2006-09-22

Family

ID=34889024

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20064311A NO20064311L (no) 2004-02-23 2006-09-22 Fremgangsmate og anordning for kryptering av en datastrom

Country Status (12)

Country Link
US (1) US20080226067A1 (no)
EP (1) EP1721472A2 (no)
JP (1) JP2007524311A (no)
AR (1) AR047892A1 (no)
AU (1) AU2005214436A1 (no)
BR (1) BRPI0507906A (no)
CA (1) CA2557014A1 (no)
IL (1) IL177595A0 (no)
NO (1) NO20064311L (no)
RU (1) RU2006133896A (no)
TW (1) TW200534719A (no)
WO (1) WO2005081544A2 (no)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7974411B2 (en) * 2008-01-31 2011-07-05 International Business Machines Corporation Method for protecting audio content
US7978853B2 (en) * 2008-01-31 2011-07-12 International Business Machines Corporation System and computer program product for protecting audio content
JP5205075B2 (ja) * 2008-02-13 2013-06-05 パナソニック株式会社 暗号処理方法、暗号処理装置、復号処理方法および復号処理装置

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* Cited by examiner, † Cited by third party
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JPH03254470A (ja) * 1990-03-02 1991-11-13 Fujitsu Ltd Ｃｄ―ｒｏｍ音データ部分の機密保護方法
JPH09139937A (ja) * 1995-11-14 1997-05-27 Fujitsu Ltd 動画ストリーム変換装置
WO1998000952A1 (fr) * 1996-07-02 1998-01-08 Sony Corporation Emetteur d'informations et procede d'emission d'informations
WO1999031657A2 (en) * 1997-12-15 1999-06-24 Matsushita Electric Industrial Co., Ltd. Optical disc, optical disc recording apparatus, and optical disc recording method for facilitating dubbing, storage medium for storing optical disc recording program for facilitating dubbing, optical disc reproducing apparatus, and optical disc reproducing method
EP1021048A3 (en) * 1999-01-14 2002-10-02 Kabushiki Kaisha Toshiba Digital video recording system and its recording medium
US6810131B2 (en) * 2000-01-05 2004-10-26 Canon Kabushiki Kaisha Information processing method and apparatus
DE60131040T2 (de) * 2000-01-12 2008-02-07 Matsushita Electric Industrial Co., Ltd., Kadoma Digitaler Rundfunkempfänger
US7023858B2 (en) * 2000-04-14 2006-04-04 Sony Corporation Data delivery in set-top box
NZ506002A (en) * 2000-07-26 2003-01-31 Rpk New Zealand Ltd Encryption processing for streaming media by assigning tag value, creating packet key, encrypting data and adding tag value
US20020025045A1 (en) * 2000-07-26 2002-02-28 Raike William Michael Encryption processing for streaming media
US6996101B2 (en) * 2000-11-29 2006-02-07 International Business Machines Corporation Re-mapping and interleaving transport packets of multiple transport streams for processing by a single transport demultiplexor
CN1236608C (zh) * 2001-01-19 2006-01-11 松下电器产业株式会社 重放装置和方法、记录装置和方法、以及输出和输入装置
JP3607627B2 (ja) * 2001-02-26 2005-01-05 株式会社東芝 アスペクト比情報の整合処理機能付き情報録再装置および方法
US7139398B2 (en) * 2001-06-06 2006-11-21 Sony Corporation Time division partial encryption
DE10163152A1 (de) * 2001-12-20 2003-07-03 Thomson Brandt Gmbh MPEG-Video-Aufzeichnungsträger und Wiedergabegerät
US7765567B2 (en) * 2002-01-02 2010-07-27 Sony Corporation Content replacement by PID mapping
KR100989015B1 (ko) * 2002-01-02 2010-10-20 소니 일렉트로닉스 인코포레이티드 부분적으로 암호화된 정보의 암호해독 및 디코딩
JP2003203422A (ja) * 2002-01-10 2003-07-18 Sony Corp ディスク記録媒体、再生装置、再生方法
JP3896949B2 (ja) * 2002-11-08 2007-03-22 日本電気株式会社 ビデオ編集装置及びビデオ編集プログラム
US7310423B2 (en) * 2003-04-24 2007-12-18 General Instrument Corporation Processing multiple encrypted transport streams

Also Published As

Publication number Publication date
WO2005081544A3 (en) 2006-02-23
JP2007524311A (ja) 2007-08-23
BRPI0507906A (pt) 2007-07-10
US20080226067A1 (en) 2008-09-18
TW200534719A (en) 2005-10-16
RU2006133896A (ru) 2008-03-27
AU2005214436A1 (en) 2005-09-01
IL177595A0 (en) 2006-12-10
CA2557014A1 (en) 2005-09-01
AR047892A1 (es) 2006-03-01
WO2005081544A2 (en) 2005-09-01
EP1721472A2 (en) 2006-11-15

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