DE69613199D1 - Ver- und Entschlüsselung von Daten mit verbesserter Sicherheit - Google Patents

Ver- und Entschlüsselung von Daten mit verbesserter Sicherheit

Info

Publication number
DE69613199D1
DE69613199D1 DE69613199T DE69613199T DE69613199D1 DE 69613199 D1 DE69613199 D1 DE 69613199D1 DE 69613199 T DE69613199 T DE 69613199T DE 69613199 T DE69613199 T DE 69613199T DE 69613199 D1 DE69613199 D1 DE 69613199D1
Authority
DE
Germany
Prior art keywords
decryption
encryption
data
improved security
security
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69613199T
Other languages
English (en)
Other versions
DE69613199T2 (de
Inventor
Kiyotaka Ogawa
Kiyoshi Kohiyama
Ryota Akiyama
Kiyokatsu Iijima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69613199D1 publication Critical patent/DE69613199D1/de
Publication of DE69613199T2 publication Critical patent/DE69613199T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • 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)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
DE69613199T 1995-12-07 1996-07-29 Ver- und Entschlüsselung von Daten mit verbesserter Sicherheit Expired - Fee Related DE69613199T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7319421A JPH09162859A (ja) 1995-12-07 1995-12-07 スクランブル方法及び装置、デスクランブル方法及び装置、並びに、データ伝達方法及びシステム

Publications (2)

Publication Number Publication Date
DE69613199D1 true DE69613199D1 (de) 2001-07-12
DE69613199T2 DE69613199T2 (de) 2001-11-15

Family

ID=18110010

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69613199T Expired - Fee Related DE69613199T2 (de) 1995-12-07 1996-07-29 Ver- und Entschlüsselung von Daten mit verbesserter Sicherheit

Country Status (5)

Country Link
US (1) US5787179A (de)
EP (1) EP0778706B1 (de)
JP (1) JPH09162859A (de)
CN (2) CN1194497C (de)
DE (1) DE69613199T2 (de)

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JPH09238132A (ja) * 1996-02-29 1997-09-09 Oki Electric Ind Co Ltd 携帯用端末通信システム及びその通信方法
US6061451A (en) * 1996-09-03 2000-05-09 Digital Vision Laboratories Corporation Apparatus and method for receiving and decrypting encrypted data and protecting decrypted data from illegal use
GB2319704B (en) * 1996-11-15 2001-07-04 Desktop Guardian Ltd Data encryption technique
AU760045B2 (en) 1997-12-19 2003-05-08 British Telecommunications Public Limited Company Data communications
US8300832B2 (en) * 1998-01-08 2012-10-30 Samsung Electronics Co., Ltd. System and method for copy protection for digital signals
US7778418B1 (en) * 1998-01-08 2010-08-17 Samsung Electronics Co., Ltd. System and method for copy protection for digital signals
JP4356178B2 (ja) * 1999-03-09 2009-11-04 ソニー株式会社 再生装置
US7730300B2 (en) 1999-03-30 2010-06-01 Sony Corporation Method and apparatus for protecting the transfer of data
US7565546B2 (en) * 1999-03-30 2009-07-21 Sony Corporation System, method and apparatus for secure digital content transmission
TW556111B (en) * 1999-08-31 2003-10-01 Toshiba Corp Extended key generator, encryption/decryption unit, extended key generation method, and storage medium
US7039614B1 (en) 1999-11-09 2006-05-02 Sony Corporation Method for simulcrypting scrambled data to a plurality of conditional access devices
US7010685B1 (en) * 1999-11-09 2006-03-07 Sony Corporation Method and apparatus for storing scrambled digital programs by filtering product identifier
GB2374998B (en) * 2000-05-22 2004-10-13 Nds Ltd Dynamically shifting control word
US7366402B2 (en) * 2000-06-02 2008-04-29 Lg Electronics Inc. Method and apparatus of recording a high definition digital television broadcast signal
JP3519691B2 (ja) * 2001-02-26 2004-04-19 株式会社東芝 制限情報の整合処理機能付き情報録再装置および方法
US7747853B2 (en) 2001-06-06 2010-06-29 Sony Corporation IP delivery of secure digital content
JP4191915B2 (ja) * 2001-08-30 2008-12-03 独立行政法人情報通信研究機構 変換装置、暗号化復号化システム、多段変換装置、プログラム、ならびに、情報記録媒体
US6931071B2 (en) * 2001-08-31 2005-08-16 Stmicroelectronics, Inc. Apparatus and method for synchronizing video and audio MPEG streams in a video playback device
JP3584913B2 (ja) * 2001-09-21 2004-11-04 ソニー株式会社 データ出力方法、記録方法および装置、再生方法および装置、データ送信方法および受信方法
JP4254201B2 (ja) * 2002-10-31 2009-04-15 ソニー株式会社 スクランブラ、送信装置および受信装置
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
US8645988B2 (en) 2002-12-13 2014-02-04 Sony Corporation Content personalization for digital content
US8667525B2 (en) 2002-12-13 2014-03-04 Sony Corporation Targeted advertisement selection from a digital stream
US7370212B2 (en) 2003-02-25 2008-05-06 Microsoft Corporation Issuing a publisher use license off-line in a digital rights management (DRM) system
US20060233361A1 (en) * 2003-03-25 2006-10-19 Akio Hasegawa Device, method, and program for encrypton and decryption and recording medium
US7493499B1 (en) 2003-05-22 2009-02-17 Copyright Clearance Center, Inc. Method and apparatus for secure delivery and rights management of digital content
US7324648B1 (en) * 2003-07-08 2008-01-29 Copyright Clearance Center, Inc. Method and apparatus for secure key delivery for decrypting bulk digital content files at an unsecure site
WO2005006639A1 (ja) * 2003-07-15 2005-01-20 Sony Corporation 無線通信システム、無線通信装置及び無線通信方法、並びにコンピュータ・プログラム
US8438645B2 (en) 2005-04-27 2013-05-07 Microsoft Corporation Secure clock with grace periods
US8725646B2 (en) 2005-04-15 2014-05-13 Microsoft Corporation Output protection levels
US7940930B2 (en) 2005-05-02 2011-05-10 Nds Limited Native scrambling system
US20060265758A1 (en) 2005-05-20 2006-11-23 Microsoft Corporation Extensible media rights
KR100762957B1 (ko) * 2005-07-19 2007-10-04 삼성전자주식회사 ＡＶ(Ａｕｄｉｏ Ｖｉｓｕａｌ) 스트림을 디스크램블하는방법 및 장치
JP4162019B2 (ja) * 2006-06-26 2008-10-08 船井電機株式会社 デジタル放送受信装置
US20080152142A1 (en) * 2006-12-20 2008-06-26 Mark Buer Memory scrambler unit (msu)
JP4696099B2 (ja) * 2007-08-07 2011-06-08 日立オムロンターミナルソリューションズ株式会社 表示画像変換装置
CN101383703B (zh) * 2008-09-12 2011-04-27 华南理工大学 基于广义信息域的动态加解密方法
JP2012209880A (ja) * 2011-03-30 2012-10-25 Sony Corp 通信装置及び通信システム
US9076018B2 (en) * 2012-12-19 2015-07-07 Clevx, Llc Encryption key generation in encrypted storage devices
US9497764B2 (en) * 2013-07-15 2016-11-15 Qualcomm Incorporated Systems and methods for a data scrambling procedure
JP5940704B1 (ja) * 2015-03-26 2016-06-29 ウィンボンド エレクトロニクス コーポレーション 半導体記憶装置

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* Cited by examiner, † Cited by third party
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US641130A (en) * 1899-09-02 1900-01-09 Elmer E Mears Soft-tread horseshoe.
US5289276A (en) * 1992-06-19 1994-02-22 General Electric Company Method and apparatus for conveying compressed video data over a noisy communication channel
DE69332529T2 (de) * 1992-07-21 2003-08-14 Matsushita Electric Ind Co Ltd Verschlüsselungsvorrichtung
US5515437A (en) * 1993-08-23 1996-05-07 Matsushita Electric Industrial Co., Ltd. Scramble transmission apparatus and signal processing apparatus
US5440640A (en) * 1993-10-05 1995-08-08 Arithmetica, Inc. Multistream encryption system for secure communication
JPH07111647A (ja) * 1993-10-14 1995-04-25 Matsushita Electric Ind Co Ltd 信号処理装置
KR100354937B1 (ko) * 1994-04-15 2002-12-26 코닌클리케 필립스 일렉트로닉스 엔.브이. 비디오신호송수신장치및방법
US5533128A (en) * 1995-01-18 1996-07-02 Vobach; Arnold Pseudo-random transposition cipher system and method

Also Published As

Publication number Publication date
CN1081418C (zh) 2002-03-20
CN1398083A (zh) 2003-02-19
EP0778706A2 (de) 1997-06-11
US5787179A (en) 1998-07-28
EP0778706B1 (de) 2001-06-06
DE69613199T2 (de) 2001-11-15
CN1194497C (zh) 2005-03-23
CN1155196A (zh) 1997-07-23
EP0778706A3 (de) 1997-11-19
JPH09162859A (ja) 1997-06-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee