BRPI0600146A - meio digital seguro pré-gravado - Google Patents

meio digital seguro pré-gravado

Info

Publication number
BRPI0600146A
BRPI0600146A BRPI0600146-7A BRPI0600146A BRPI0600146A BR PI0600146 A BRPI0600146 A BR PI0600146A BR PI0600146 A BRPI0600146 A BR PI0600146A BR PI0600146 A BRPI0600146 A BR PI0600146A
Authority
BR
Brazil
Prior art keywords
player
content
secure digital
digital medium
verifies
Prior art date
Application number
BRPI0600146-7A
Other languages
English (en)
Inventor
Eric Diehl
Alain Durand
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Publication of BRPI0600146A publication Critical patent/BRPI0600146A/pt

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
    • 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
    • G11B20/10—Digital recording or reproducing
    • 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
    • G11B20/00188—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised devices recording or reproducing contents to/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
    • G11B20/00217—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 the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00246—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 the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is obtained from a local device, e.g. device key initially stored by the player or by the recorder
    • 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
    • G11B20/00217—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 the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00253—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 the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Storage Device Security (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

MEIO DIGITAL SEGURO PRé-GRAVADO. Um meio pré-gravado seguro (110) e um método para desmisturar conteúdo codificado (114) no mesmo. Quando um tocador (120) deseja acessar o conteúdo, um processador seguro (111) no meio verifica (202) que o tocador não foi cancelado, de preferência comparando uma identidade do tocador com identidades em uma lista de cancelamento (113) após o que uma autenticação mútua é executada (204). O processador seguro verifica então (205) que o tocador tem os direitos de acessar o conteúdo e provê (206, 207) para o tocador a chave necessária para desmisturar o conteúdo, após o que o tocador desmistura (208) o conteúdo.
BRPI0600146-7A 2005-01-24 2006-01-23 meio digital seguro pré-gravado BRPI0600146A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05100406A EP1684286A1 (en) 2005-01-24 2005-01-24 Secure pre-recorded digital medium

Publications (1)

Publication Number Publication Date
BRPI0600146A true BRPI0600146A (pt) 2008-01-02

Family

ID=34938555

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0600146-7A BRPI0600146A (pt) 2005-01-24 2006-01-23 meio digital seguro pré-gravado

Country Status (8)

Country Link
US (1) US8229857B2 (pt)
EP (1) EP1684286A1 (pt)
JP (1) JP5030426B2 (pt)
KR (1) KR101299807B1 (pt)
CN (1) CN1822165B (pt)
BR (1) BRPI0600146A (pt)
MY (1) MY149201A (pt)
TW (1) TWI406269B (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007116552A (ja) * 2005-10-21 2007-05-10 Toshiba Corp コンテンツデータ再生システム、コンテンツデータ再生用プログラム、及び再生用機器
US8099629B2 (en) * 2006-07-14 2012-01-17 Marvell World Trade Ltd. System-on-a-chip (SoC) test interface security
WO2008032002A1 (fr) * 2006-09-15 2008-03-20 France Telecom Procede de securisation de l'acces a un contenu enregistre sur un moyen de stockage
CN103546767B (zh) * 2012-07-16 2017-01-25 航天信息股份有限公司 多媒体业务的内容保护方法和系统
US9531547B2 (en) * 2015-04-06 2016-12-27 Vmware, Inc. Host-based digital signature verification for guest components
US11481786B2 (en) * 2017-10-03 2022-10-25 Sony Group Corporation Genuine instance of digital goods
FR3090254B1 (fr) * 2018-12-12 2022-12-16 Idemia France Accès sécurise à des données chiffrées d’un terminal utilisateur

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10187826A (ja) * 1996-12-19 1998-07-21 Nec Corp 偽造カード使用防止方法およびカード読取書込装置ならびに偽造カード使用防止システム
TW389894B (en) * 1997-06-19 2000-05-11 Optrom Kk Device for exchanging information with storage medium having electronic circuit and the electronic circuit, and system including the same
IL123028A (en) * 1998-01-22 2007-09-20 Nds Ltd Protection of data on media recording disks
JPH11250192A (ja) * 1998-03-03 1999-09-17 Ntt Data Corp Ｉｃチップ内蔵記録媒体、情報アクセス制御装置
JP2000049770A (ja) * 1998-07-31 2000-02-18 Hitachi Ltd 暗号化通信方法、暗号アルゴリズム共有管理方法、暗号アルゴリズム変換方法、ネットワーク通信システム
JP4779183B2 (ja) * 1999-03-26 2011-09-28 ソニー株式会社 再生装置および再生方法
EP1041573B1 (en) * 1999-03-03 2010-01-06 Sony Corporation Reproducing apparatus and reproducing method
US6615192B1 (en) * 1999-03-12 2003-09-02 Matsushita Electric Industrial Co., Ltd. Contents copying system, copying method, computer-readable recording medium and disc drive copying contents but not a cipher key via a host computer
JP4621314B2 (ja) * 1999-06-16 2011-01-26 株式会社東芝 記憶媒体
JP4131067B2 (ja) * 1999-10-18 2008-08-13 ソニー株式会社 情報処理装置、情報処理方法、およびプログラム記録媒体
BR9917574A (pt) * 1999-12-07 2002-08-06 Sun Microsystems Inc Meio legìvel por computador com microprocessador para controlar a leitura e computador disposto para se comunicar com tal meio
FR2818062B1 (fr) * 2000-12-07 2003-04-11 Thomson Multimedia Sa Methode de transmission securisee de donnees numeriques d'une source vers un recepteur
JP2003187524A (ja) * 2001-12-19 2003-07-04 Hirano Design Sekkei:Kk Ｒｆｉｄチップ搭載記録媒体レンタルシステム
US7490249B1 (en) * 2002-05-09 2009-02-10 Zotus, Inc. Content protection and authentication without secret keys
US20030226029A1 (en) * 2002-05-29 2003-12-04 Porter Allen J.C. System for protecting security registers and method thereof
JP2004056394A (ja) * 2002-07-18 2004-02-19 Fujitsu Ltd Ｌａｎを介して取込装置および蓄積装置を制御するための制御装置、およびそのための取込装置、蓄積装置、プログラムおよび方法
JP2004185782A (ja) * 2002-12-06 2004-07-02 Pioneer Electronic Corp 情報処理装置、情報記録装置、情報記録媒体、コンピュータプログラム及び情報処理方法
WO2004112004A2 (en) * 2003-06-17 2004-12-23 Nds Limited Multimedia storage and access protocol
EP1642188A2 (en) 2003-07-08 2006-04-05 Matsushita Electric Industrial Co., Ltd. Information input/output system
JP4059185B2 (ja) * 2003-10-15 2008-03-12 ソニー株式会社 情報処理装置、情報記録媒体、および情報処理方法、並びにコンピュータ・プログラム
JP4114605B2 (ja) * 2003-12-24 2008-07-09 ソニー株式会社 情報処理装置、情報記録媒体、および情報処理方法、並びにコンピュータ・プログラム
JP4763368B2 (ja) * 2005-07-12 2011-08-31 パナソニック株式会社 通信カード、機密情報処理システム、機密情報転送方法およびプログラム

Also Published As

Publication number Publication date
JP5030426B2 (ja) 2012-09-19
TW200639810A (en) 2006-11-16
TWI406269B (zh) 2013-08-21
US20060178995A1 (en) 2006-08-10
MY149201A (en) 2013-07-31
CN1822165B (zh) 2010-08-18
KR101299807B1 (ko) 2013-08-26
KR20060085585A (ko) 2006-07-27
US8229857B2 (en) 2012-07-24
JP2006211662A (ja) 2006-08-10
CN1822165A (zh) 2006-08-23
EP1684286A1 (en) 2006-07-26

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Legal Events

Date Code Title Description
B07A Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]