WO2008090928A1 - 記憶媒体上のデータ変換方法、装置およびプログラム - Google Patents

記憶媒体上のデータ変換方法、装置およびプログラム Download PDF

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Publication number
WO2008090928A1
WO2008090928A1 PCT/JP2008/050907 JP2008050907W WO2008090928A1 WO 2008090928 A1 WO2008090928 A1 WO 2008090928A1 JP 2008050907 W JP2008050907 W JP 2008050907W WO 2008090928 A1 WO2008090928 A1 WO 2008090928A1
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WO
WIPO (PCT)
Prior art keywords
storage medium
data
sector
program
converting data
Prior art date
Application number
PCT/JP2008/050907
Other languages
English (en)
French (fr)
Inventor
Naoyuki Oe
Takahiro Shima
Yoshiyuki Matsumoto
Hiroki Shima
Yusuke Minamii
Takahiro Takeda
Original Assignee
Humming Heads Inc.
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 Humming Heads Inc. filed Critical Humming Heads Inc.
Priority to JP2008555093A priority Critical patent/JP4829979B2/ja
Priority to CN2008800030692A priority patent/CN101632087B/zh
Priority to EP08703737.0A priority patent/EP2107492B1/en
Publication of WO2008090928A1 publication Critical patent/WO2008090928A1/ja
Priority to US12/491,865 priority patent/US20090265562A1/en
Priority to US13/564,409 priority patent/US9330712B2/en

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    • 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
    • G11B20/00507—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 wherein consecutive physical data units of the record carrier are encrypted with separate encryption keys, e.g. the key changes on a cluster or sector basis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/602—Providing cryptographic facilities or services
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
    • 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
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/322—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is digitally coded
    • 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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • 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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G11B2020/1218—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc
    • G11B2020/1232—Formatting, e.g. arrangement of data block or words on the record carriers on discs wherein the formatting concerns a specific area of the disc sector, i.e. the minimal addressable physical data unit
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs
    • G11B2220/2516—Hard disks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Bioethics (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Multimedia (AREA)
  • Storage Device Security (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

　ディスク管理階層概念上ファイルシステムより上位のデータ変換補助モジュールにて、対象となる記憶媒体内のデータに順次アクセスを行うと、データ変換モジュールは、ファイルシステムからデバイスドライバに対するセクタ単位のアクセス要求を捕捉して、デバイスドライバから返されたセクタのデータを変換し、変換データをそのセクタに書き込むことによって、記憶媒体内のデータに関連付けられた記憶媒体の特定領域のデータ変換を行うことができる。
PCT/JP2008/050907 2007-01-24 2008-01-23 記憶媒体上のデータ変換方法、装置およびプログラム WO2008090928A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2008555093A JP4829979B2 (ja) 2007-01-24 2008-01-23 記憶媒体上のデータ変換方法、装置およびプログラム
CN2008800030692A CN101632087B (zh) 2007-01-24 2008-01-23 存储媒体中的数据变换方法、装置以及程序
EP08703737.0A EP2107492B1 (en) 2007-01-24 2008-01-23 Method, device, and program for converting data in storage medium
US12/491,865 US20090265562A1 (en) 2007-01-24 2009-06-25 Data conversion method on storage medium, apparatus and program
US13/564,409 US9330712B2 (en) 2007-01-24 2012-08-01 Data conversion method on storage medium, apparatus and program

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-039969 2007-01-24
JP2007039969 2007-01-24

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/491,865 Continuation US20090265562A1 (en) 2007-01-24 2009-06-25 Data conversion method on storage medium, apparatus and program

Publications (1)

Publication Number Publication Date
WO2008090928A1 true WO2008090928A1 (ja) 2008-07-31

Family

ID=39644502

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/050907 WO2008090928A1 (ja) 2007-01-24 2008-01-23 記憶媒体上のデータ変換方法、装置およびプログラム

Country Status (5)

Country Link
US (2) US20090265562A1 (ja)
EP (1) EP2107492B1 (ja)
JP (1) JP4829979B2 (ja)
CN (1) CN101632087B (ja)
WO (1) WO2008090928A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014516438A (ja) * 2011-04-05 2014-07-10 マカフィー， インコーポレイテッド ウェアレベリングを有するメモリ装置の暗号化

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JP2010176187A (ja) * 2009-01-27 2010-08-12 Fuji Xerox Co Ltd 情報処理システム、情報処理装置及び情報処理プログラム
CN103488954B (zh) * 2013-10-16 2016-03-30 武汉理工大学 一种文件加密系统
GB2542282B (en) * 2013-10-22 2018-08-01 Canon Kk Method, device, and computer program for encapsulating partitioned timed media data in a server
CN104125069B (zh) * 2014-07-07 2017-07-25 武汉理工大学 一种面向共享的安全文件目录文件加密系统

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JP2001338468A (ja) * 2000-05-26 2001-12-07 Hitachi Ltd 記憶装置の制御方法および記憶装置
JP2004199229A (ja) * 2002-12-17 2004-07-15 Sakura K C S:Kk 記憶装置に記憶されたデータを解読不能にする方法及びコンピュータプログラム。
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JP2004199229A (ja) * 2002-12-17 2004-07-15 Sakura K C S:Kk 記憶装置に記憶されたデータを解読不能にする方法及びコンピュータプログラム。
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See also references of EP2107492A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014516438A (ja) * 2011-04-05 2014-07-10 マカフィー， インコーポレイテッド ウェアレベリングを有するメモリ装置の暗号化

Also Published As

Publication number Publication date
CN101632087A (zh) 2010-01-20
JP4829979B2 (ja) 2011-12-07
EP2107492A4 (en) 2011-03-02
US20120303975A1 (en) 2012-11-29
EP2107492A1 (en) 2009-10-07
JPWO2008090928A1 (ja) 2010-05-20
US20090265562A1 (en) 2009-10-22
EP2107492B1 (en) 2019-07-24
US9330712B2 (en) 2016-05-03
CN101632087B (zh) 2013-02-13

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