KR100982168B1 - 기록매체 상에 저장된 암호화된 데이터를 복호화하는 방법및 장치 - Google Patents
기록매체 상에 저장된 암호화된 데이터를 복호화하는 방법및 장치 Download PDFInfo
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- KR100982168B1 KR100982168B1 KR1020037000269A KR20037000269A KR100982168B1 KR 100982168 B1 KR100982168 B1 KR 100982168B1 KR 1020037000269 A KR1020037000269 A KR 1020037000269A KR 20037000269 A KR20037000269 A KR 20037000269A KR 100982168 B1 KR100982168 B1 KR 100982168B1
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- recording medium
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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
- G11B20/10—Digital recording or reproducing
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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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
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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
-
- 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
- G11B20/00137—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users
- G11B20/00152—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users involving a password
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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
- G11B20/00217—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
- G11B20/00369—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 wherein a first key, which is usually stored on a hidden channel, e.g. in the lead-in of a BD-R, unlocks a key locker containing a second
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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
- G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
- G11B20/00586—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium
Abstract
Description
Claims (8)
- 기록매체 상에 저장된 암호화된 데이터를 복호화하는 방법에 있어서,a) 상기 기록매체와 관련된 유일한 매체 식별자(UDI), 상기 기록매체 상의 은닉 채널에 저장된 은닉 키(HK)와 패스워드 키(PK)를 사용하여 복호화 키(DK)를 발생하는 단계와,b) 상기 발생된 복호화 키(DK)를 사용하여 상기 기록매체 상에 저장된 상기 암호화된 데이터를 복호화하는 단계를 포함하고,상기 발생된 복호화 키(DK)가 먼저 암호화된 보조 복호화 키(AK)를 복호화, 특히 키 록커(KL)로부터 자산 키를 복호화하는데 사용된 후, 상기 보조 복호화 키(AK), 특히 상기 자산 키가 상기 기록매체 상에 저장된 상기 암호화된 데이터를 복호화하는데 사용되는 것을 특징으로 하는 복호화 방법.
- 삭제
- 삭제
- 기록매체 상에 저장된 암호화된 데이터를 복호화하는 장치에 있어서,a) 상기 기록매체와 관련된 유일한 매체 식별자(UDI), 상기 기록매체 상의 은닉 채널에 저장된 은닉 키(HK)와 패스워드 키(PK)를 사용하여 복호화 키(DK)를 발생하는 키 발생수단과,b) 상기 발생된 복호화 키(DK)를 사용하여 상기 기록매체 상에 저장된 상기 암호화된 데이터를 복호화하는 복호화수단을 구비하고,상기 복호화수단은 상기 발생된 복호화 키(DK)를 암호화된 보조 복호화 키(AK)를 복호화, 특히 키 록커(KL)로부터 자산 키를 복호화하는데 사용한 후, 상기 보조 복호화 키(AK), 특히 상기 자산 키를 상기 기록매체 상에 저장된 상기 암호화된 데이터를 복호화하는데 사용하는 것을 특징으로 하는 복호화 장치.
- 삭제
- 삭제
- 기록매체 상에 저장하고자 하는 데이터를 암호화하는 방법에 있어서,a) 상기 기록매체와 관련된 유일한 매체 식별자(UDI), 상기 기록매체 상의 은닉 채널에 저장된 은닉 키(HK)와, 패스워드 키(PK)를 사용하여 복호화 키(DK)를 발생하는 단계와,b) 상기 발생된 복호화 키(DK)를 사용하여 상기 기록매체 상에 저장하고자 하는 상기 데이터를 암호화하는 단계를 포함하고,보조 암호화 키(AK), 특히 키 록커(KL)로부터 자산 키가 상기 기록매체 상에 저장하고자 하는 상기 데이터를 암호화하는데 먼저 사용된 후, 상기 발생된 복호화 키(DK)가 상기 보조 암호화 키(AK), 특히 상기 자산 키를 암호화하는데 사용되는 것을 특징으로 하는 암호화 방법.
- 기록매체 상에 저장하고자 하는 데이터를 암호화하는 장치에 있어서,a) 상기 기록매체와 관련된 유일한 매체 식별자(UDI), 상기 기록매체 상의 은닉 채널에 저장된 은닉 키(HK)와, 패스워드 키(PK)를 사용하여 복호화 키(DK)를 발생하는 키 발생수단과,b) 상기 발생된 복호화 키(DK)를 사용하여 상기 기록매체 상에 저장하고자 하는 상기 데이터를 암호화하는 암호화 수단을 구비하고,상기 암호화 수단은 보조 암호화 키(AK), 특히 키 록커(KL)로부터 자산 키를 상기 기록매체 상에 저장하고자 하는 상기 데이터를 암호화하는데 먼저 사용한 후, 상기 발생된 복호화 키(DK)를 상기 보조 암호화 키(AK), 특히 상기 자산 키를 암호화하는데 사용하는 것을 특징으로 하는 암호화 장치.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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EP01201692.9 | 2001-05-09 | ||
EP01201692 | 2001-05-09 | ||
PCT/IB2002/001511 WO2002091377A1 (en) | 2001-05-09 | 2002-04-24 | Method and apparatus for decrypting encrypted data stored on a record carrier |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030014428A KR20030014428A (ko) | 2003-02-17 |
KR100982168B1 true KR100982168B1 (ko) | 2010-09-14 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020037000269A KR100982168B1 (ko) | 2001-05-09 | 2002-04-24 | 기록매체 상에 저장된 암호화된 데이터를 복호화하는 방법및 장치 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7209562B2 (ko) |
EP (1) | EP1393317B1 (ko) |
JP (1) | JP2004531957A (ko) |
KR (1) | KR100982168B1 (ko) |
CN (1) | CN100370726C (ko) |
WO (1) | WO2002091377A1 (ko) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3835655B2 (ja) * | 1998-06-09 | 2006-10-18 | ソニー株式会社 | 情報信号再生装置、情報信号処理装置、情報信号再生方法および情報信号出力方法 |
ES2510642T3 (es) | 2003-01-24 | 2014-10-21 | Intrinsic Id B.V. | Método y dispositivo de control de acceso a medio de almacenamiento fiable |
EP1597727B1 (en) | 2003-02-20 | 2011-12-28 | Koninklijke Philips Electronics N.V. | Information carrier comprising access information |
JP2004272341A (ja) * | 2003-03-05 | 2004-09-30 | Sony Corp | 再生方法および装置、記録方法および装置、プログラム記録媒体およびプログラム、並びに記録媒体 |
KR20040092649A (ko) * | 2003-04-24 | 2004-11-04 | 엘지전자 주식회사 | 광디스크의 복사 방지 정보 관리방법 |
KR100972831B1 (ko) * | 2003-04-24 | 2010-07-28 | 엘지전자 주식회사 | 엔크립트된 데이터의 보호방법 및 그 재생장치 |
KR100974448B1 (ko) * | 2003-04-24 | 2010-08-10 | 엘지전자 주식회사 | 광디스크의 복사 방지 정보 관리방법 |
KR100974449B1 (ko) * | 2003-04-24 | 2010-08-10 | 엘지전자 주식회사 | 광디스크의 복사 방지 정보 관리방법 |
JP4085028B2 (ja) * | 2003-06-26 | 2008-04-30 | 株式会社リコー | 可搬型情報記録媒体,データ記録方法,データ再生方法、およびデータ記録プログラムならびにデータ再生プログラム |
WO2005050907A1 (en) * | 2003-11-14 | 2005-06-02 | Sonic Solutions | Secure transfer of content to writable media |
US20070239605A1 (en) * | 2006-04-06 | 2007-10-11 | Peter Munguia | Supporting multiple key ladders using a common private key set |
JP2008245112A (ja) * | 2007-03-28 | 2008-10-09 | Hitachi Global Storage Technologies Netherlands Bv | データ記憶装置及びその暗号鍵の管理方法 |
US20080301466A1 (en) * | 2007-05-30 | 2008-12-04 | Mediatek Inc. | Methods for program verification and apparatuses using the same |
US20090193261A1 (en) * | 2008-01-25 | 2009-07-30 | Mediatek Inc. | Apparatus and method for authenticating a flash program |
JP2011008701A (ja) * | 2009-06-29 | 2011-01-13 | Sony Corp | 情報処理サーバ、情報処理装置、および情報処理方法 |
US8914634B2 (en) | 2012-04-10 | 2014-12-16 | Western Digital Technologies, Inc. | Digital rights management system transfer of content and distribution |
US8831217B2 (en) * | 2012-04-10 | 2014-09-09 | Western Digital Technologies, Inc. | Digital rights management system and methods for accessing content from an intelligent storage |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0802527A1 (en) | 1995-10-09 | 1997-10-22 | Matsushita Electric Industrial Co., Ltd. | Optical disk, optical recorder, optical reproducing device, encrypted communication system, and authorizing system for use of program |
WO1997043761A2 (en) * | 1996-05-15 | 1997-11-20 | Intertrust Technologies Corp. | Cryptographic methods, apparatus and systems for storage media electronic rights management in closed and connected appliances |
KR20000011016A (ko) * | 1997-03-13 | 2000-02-25 | 미쉘 꼴롱브 | 보안 모듈에서의 민감한 정보의 기억 및 관리를 위한 방법 및관련 보안 모듈 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US23219A (en) * | 1859-03-08 | Thomas gray | ||
DE69233335T2 (de) * | 1991-12-02 | 2005-02-10 | Koninklijke Philips Electronics N.V. | Geschlossenes Informationssystem mit Kopierschutz |
CN1183841A (zh) * | 1995-02-13 | 1998-06-03 | 英特特拉斯特技术公司 | 用于安全交易管理和电子权利保护的系统和方法 |
JP3209221B2 (ja) * | 1995-10-09 | 2001-09-17 | 松下電器産業株式会社 | 光ディスク |
US5883958A (en) * | 1996-04-01 | 1999-03-16 | Sony Corporation | Method and device for data decryption, a method and device for device identification, a recording medium, a method of disk production, and a method and apparatus for disk recording |
US5809006A (en) * | 1996-05-31 | 1998-09-15 | Cagent Technologies, Inc. | Optical disk with copy protection, and apparatus and method for recording and reproducing same |
US5784460A (en) * | 1996-10-10 | 1998-07-21 | Protocall Technolgies, Inc. | Secured electronic information delivery system having a three-tier structure |
EP0989497A1 (en) * | 1997-09-25 | 2000-03-29 | CANAL+ Société Anonyme | Method and apparatus for protection of recorded digital data |
CN1225939A (zh) * | 1998-02-09 | 1999-08-18 | 沈阳市宏达节能液厂 | 水基金属切削液 |
JP3216607B2 (ja) * | 1998-07-29 | 2001-10-09 | 日本電気株式会社 | デジタル著作物流通システム及び方法、デジタル著作物再生装置及び方法、並びに記録媒体 |
JP2000207829A (ja) * | 1999-01-11 | 2000-07-28 | Yamaha Corp | 暗号化及びその解除方式 |
JP4457474B2 (ja) * | 2000-04-04 | 2010-04-28 | ソニー株式会社 | 情報記録装置、情報再生装置、情報記録方法、情報再生方法、および情報記録媒体、並びにプログラム提供媒体 |
ES2393616T3 (es) * | 2000-08-16 | 2012-12-26 | Koninklijke Philips Electronics N.V. | Método y dispositivo para controlar la distribución y el uso de obras digitales |
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2002
- 2002-04-24 WO PCT/IB2002/001511 patent/WO2002091377A1/en active Application Filing
- 2002-04-24 CN CNB028015789A patent/CN100370726C/zh not_active Expired - Fee Related
- 2002-04-24 JP JP2002588548A patent/JP2004531957A/ja active Pending
- 2002-04-24 EP EP02769182.3A patent/EP1393317B1/en not_active Expired - Lifetime
- 2002-04-24 KR KR1020037000269A patent/KR100982168B1/ko active IP Right Grant
- 2002-05-07 US US10/140,504 patent/US7209562B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0802527A1 (en) | 1995-10-09 | 1997-10-22 | Matsushita Electric Industrial Co., Ltd. | Optical disk, optical recorder, optical reproducing device, encrypted communication system, and authorizing system for use of program |
WO1997043761A2 (en) * | 1996-05-15 | 1997-11-20 | Intertrust Technologies Corp. | Cryptographic methods, apparatus and systems for storage media electronic rights management in closed and connected appliances |
KR20000011016A (ko) * | 1997-03-13 | 2000-02-25 | 미쉘 꼴롱브 | 보안 모듈에서의 민감한 정보의 기억 및 관리를 위한 방법 및관련 보안 모듈 |
Also Published As
Publication number | Publication date |
---|---|
US7209562B2 (en) | 2007-04-24 |
EP1393317B1 (en) | 2014-05-21 |
EP1393317A1 (en) | 2004-03-03 |
CN1462442A (zh) | 2003-12-17 |
US20020168070A1 (en) | 2002-11-14 |
JP2004531957A (ja) | 2004-10-14 |
WO2002091377A1 (en) | 2002-11-14 |
CN100370726C (zh) | 2008-02-20 |
KR20030014428A (ko) | 2003-02-17 |
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