DE69412196D1 - Verfahren zur Verwendung von Mediuminhomogenitäten zur Minimierung unbefugter Vervielfältigung digitaler Daten - Google Patents
Verfahren zur Verwendung von Mediuminhomogenitäten zur Minimierung unbefugter Vervielfältigung digitaler DatenInfo
- Publication number
- DE69412196D1 DE69412196D1 DE69412196T DE69412196T DE69412196D1 DE 69412196 D1 DE69412196 D1 DE 69412196D1 DE 69412196 T DE69412196 T DE 69412196T DE 69412196 T DE69412196 T DE 69412196T DE 69412196 D1 DE69412196 D1 DE 69412196D1
- Authority
- DE
- Germany
- Prior art keywords
- digital data
- unauthorized duplication
- minimize unauthorized
- inhomogeneities
- medium
- 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
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
- G11B20/0092—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors
- G11B20/00927—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors wherein said defects or errors are generated on purpose, e.g. intended scratches
- G11B20/00949—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors wherein said defects or errors are generated on purpose, e.g. intended scratches said intentional errors occurring due to bad sectors, which are either physically destroyed or which are declared defective in the defect management information
-
- 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
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
- G06F21/80—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in storage media based on magnetic or optical technology, e.g. disks with sectors
-
- 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
- G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
- G11B20/00123—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers the record carrier being identified by recognising some of its unique characteristics, e.g. a unique defect pattern serving as a physical signature of 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
- G11B20/00188—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
-
- 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
- G11B20/00217—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
- G11B20/00326—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 the key being embossed 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
- G11B20/0092—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors
- G11B20/00963—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors wherein said defects or errors are not generated on purpose, e.g. random defect patterns occurring during the normal manufacture
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
- G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
-
- 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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1816—Testing
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/120,969 US5412718A (en) | 1993-09-13 | 1993-09-13 | Method for utilizing medium nonuniformities to minimize unauthorized duplication of digital information |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69412196D1 true DE69412196D1 (de) | 1998-09-10 |
DE69412196T2 DE69412196T2 (de) | 1999-04-08 |
Family
ID=22393608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69412196T Expired - Fee Related DE69412196T2 (de) | 1993-09-13 | 1994-09-12 | Verfahren zur Verwendung von Mediuminhomogenitäten zur Minimierung unbefugter Vervielfältigung digitaler Daten |
Country Status (4)
Country | Link |
---|---|
US (1) | US5412718A (de) |
EP (1) | EP0644474B1 (de) |
DE (1) | DE69412196T2 (de) |
SG (1) | SG46304A1 (de) |
Families Citing this family (125)
Publication number | Priority date | Publication date | Assignee | Title |
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US5768426A (en) | 1993-11-18 | 1998-06-16 | Digimarc Corporation | Graphics processing system employing embedded code signals |
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US5748763A (en) | 1993-11-18 | 1998-05-05 | Digimarc Corporation | Image steganography system featuring perceptually adaptive and globally scalable signal embedding |
US5822436A (en) | 1996-04-25 | 1998-10-13 | Digimarc Corporation | Photographic products and methods employing embedded information |
US5513260A (en) * | 1994-06-29 | 1996-04-30 | Macrovision Corporation | Method and apparatus for copy protection for various recording media |
US5659613A (en) * | 1994-06-29 | 1997-08-19 | Macrovision Corporation | Method and apparatus for copy protection for various recording media using a video finger print |
JPH0877263A (ja) * | 1994-09-09 | 1996-03-22 | Fujitsu Ltd | ソフトウェア処理装置 |
US5615061A (en) * | 1994-09-29 | 1997-03-25 | Singh; Jitendra K. | Method of preventng software piracy by uniquely identifying the specific magnetic storage device the software is stored on |
US7007166B1 (en) | 1994-12-28 | 2006-02-28 | Wistaria Trading, Inc. | Method and system for digital watermarking |
US5745569A (en) * | 1996-01-17 | 1998-04-28 | The Dice Company | Method for stega-cipher protection of computer code |
US7362775B1 (en) * | 1996-07-02 | 2008-04-22 | Wistaria Trading, Inc. | Exchange mechanisms for digital information packages with bandwidth securitization, multichannel digital watermarks, and key management |
KR100268693B1 (ko) * | 1995-02-08 | 2000-10-16 | 이리마지리 쇼우이치로 | 보안 검사 기능을 갖는 정보 처리 장치 및 보안 검사 방법 |
JPH08287603A (ja) * | 1995-04-13 | 1996-11-01 | Pioneer Electron Corp | 情報記録装置及び情報再生装置 |
JPH08335182A (ja) * | 1995-06-07 | 1996-12-17 | Fujitsu Ltd | ファイル保護システム及びそのファイル保護システムを用いたソフトウエア利用システム及びそのソフトウエア利用システムに用いられる記録媒体 |
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RU2191423C2 (ru) * | 1995-06-30 | 2002-10-20 | Сони Корпорейшн | Способ и устройство записи данных, носитель данных и способ и устройство воспроизведения данных |
US5757915A (en) * | 1995-08-25 | 1998-05-26 | Intel Corporation | Parameterized hash functions for access control |
US6061656A (en) * | 1995-10-06 | 2000-05-09 | Pace; Michael | Computer-based trading card system and method |
US5689561A (en) * | 1995-10-06 | 1997-11-18 | Pace; Michael | Computer-based trading card system and method |
WO1997014249A1 (fr) * | 1995-10-09 | 1997-04-17 | Matsushita Electric Industrial Co., Ltd. | Transmetteur de donnees, procede de transmission de donnees, recepteur de donnees, processeur d'informations et support d'enregistrement d'informations |
US5917910A (en) * | 1995-10-16 | 1999-06-29 | Sony Corporation | Encrypting method and apparatus, recording method, decrypting method and apparatus, and recording medium |
US6205249B1 (en) * | 1998-04-02 | 2001-03-20 | Scott A. Moskowitz | Multiple transform utilization and applications for secure digital watermarking |
US7664263B2 (en) | 1998-03-24 | 2010-02-16 | Moskowitz Scott A | Method for combining transfer functions with predetermined key creation |
US5822432A (en) * | 1996-01-17 | 1998-10-13 | The Dice Company | Method for human-assisted random key generation and application for digital watermark system |
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US7543151B2 (en) | 1996-02-15 | 2009-06-02 | Semtek Innovative Solutions Corporation | Method and apparatus for securing and authenticating encoded data and documents containing such data |
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-
1993
- 1993-09-13 US US08/120,969 patent/US5412718A/en not_active Expired - Fee Related
-
1994
- 1994-09-12 SG SG1996002520A patent/SG46304A1/en unknown
- 1994-09-12 EP EP94306679A patent/EP0644474B1/de not_active Expired - Lifetime
- 1994-09-12 DE DE69412196T patent/DE69412196T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0644474A1 (de) | 1995-03-22 |
US5412718A (en) | 1995-05-02 |
SG46304A1 (en) | 1998-02-20 |
DE69412196T2 (de) | 1999-04-08 |
EP0644474B1 (de) | 1998-08-05 |
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