KR20010014982A - 정보 처리 장치, 정보 처리 방법, 및 프로그램 저장 매체 - Google Patents
정보 처리 장치, 정보 처리 방법, 및 프로그램 저장 매체 Download PDFInfo
- Publication number
- KR20010014982A KR20010014982A KR1020000029219A KR20000029219A KR20010014982A KR 20010014982 A KR20010014982 A KR 20010014982A KR 1020000029219 A KR1020000029219 A KR 1020000029219A KR 20000029219 A KR20000029219 A KR 20000029219A KR 20010014982 A KR20010014982 A KR 20010014982A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
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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
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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
- G11B20/0021—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
- G11B20/00333—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 stored in header data, e.g. in sector headers
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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
- G11B20/00666—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a step of erasing or nullifying data, e.g. data being overwritten with a random string
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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
- G11B20/0071—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a purchase action
-
- 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
- G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
- G11B20/00746—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number
- G11B20/00789—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of functional copies, which can be accessed at a time, e.g. electronic bookshelf concept, virtual library, video rentals or check-in/check out
-
- 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
- G11B20/1883—Methods for assignment of alternate areas for defective areas
-
- 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
- G11B20/1883—Methods for assignment of alternate areas for defective areas
- G11B20/1889—Methods for assignment of alternate areas for defective areas with discs
-
- 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
Abstract
Description
Claims (5)
- 정보처리장치에 있어서,암호화 키로 암호화된 컨텐트 데이터를 저장하는 저장 수단;상기 저장 수단에 저장된 상기 컨텐트 데이터와 관련된 관리 정보를 유지하는 유지 수단;상기 관리 정보에 포함된 것으로 소정의 타이밍으로 갱신된 갱신 정보를 포함하는 연산 정보와 상기 암호화 키에 의거하여 소정의 연산을 행하는 연산 수단;상기 연산 수단에 의해 행해진 연산의 결과를 기억하는 메모리 수단; 및상기 연산 수단에 의해 행해진 연산의 결과를 상기 메모리 수단에 기억된 이전의 연산 결과와 비교하고, 이 비교의 결과에 따라 상기 저장 수단에 저장된 상기 컨텐트 데이터의 사용을 제어하는 제어 수단을 포함하여 구성되는 것을 특징으로 하는 정보처리장치.
- 제1항에 있어서,상기 연산 수단은 상기 연산 정보와 상기 암호화 키에 해쉬(hash) 함수를 적용하므로써 상기 연산을 행하는 것을 특징으로 하는 정보처리장치.
- 제1항에 있어서,상기 컨텐트 데이터는 음악 데이터이고;상기 연산 정보는 상기 음악 데이터를 식별하는 식별 정보를 포함하고; 및상기 유지 수단은 보통 판독 또는 기입이 허락되지 않은 영역에 상기 갱신 정보를 유지하는 것을 특징으로 하는 정보처리장치.
- 정보처리방법에 있어서,암호화키로 암호화된 컨텐트 데이터를 저장하는 단계;상기 저장 단계에서 저장된 상기 컨텐트 데이터와 관련된 관리 정보를 유지하는 단계;상기 관리 정보에 포함된 것으로 소정의 타이밍으로 갱신된 갱신 정보를 포함하는 연산 정보와, 상기 암호화키에 의거하여 소정의 연산을 행하는 단계;상기 연산 단계에서 행해진 연산의 결과를 기억하는 메모리 단계; 및상기 연산 단계에서 행해진 연산의 결과를 상기 기억 단계에서 기억된 이전의 연산 결과와 비교하고, 이 비교의 결과에 따라 상기 저장 단계에서 저장된 상기 컨텐트 데이터의 사용을 제어하는 단계를 포함하여 구성되는 것을 특징으로 하는 정보처리방법.
- 프로그램이 저장되는 프로그램 저장 매체에 있어서, 상기 프로그램은 암호화키로 암호화된 컨텐트 데이터를 저장 하는 단계;상기 저장 단계에서 저장된 상기 컨텐트 데이터와 관련된 관리 정보를 유지하는 단계;상기 관리 정보에 포함된 것으로 소정의 타이밍으로 갱신된 갱신 정보를 포함하는 연산 정보와, 상기 암호화 키에 의거하여 소정의 연산을 행하는 단계;상기 연산 단계에서 행해진 연산의 결과를 기억하는 단계; 및상기 연산 단계에서 행해진 연산의 결과를 상기 기억 단계에서 기억된 이전의 연산 결과와 비교하고 이 비교의 결과에 따라 상기 저장 단계에서 저장된 상기 컨텐트 데이터의 사용을 제어하는 단계를 포함하는 것을 특징으로 하는 프로그램 저장 매체.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP15206099 | 1999-05-31 | ||
JP1999-152060 | 1999-05-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010014982A true KR20010014982A (ko) | 2001-02-26 |
KR100711171B1 KR100711171B1 (ko) | 2007-04-27 |
Family
ID=15532189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020000029219A KR100711171B1 (ko) | 1999-05-31 | 2000-05-30 | 정보 처리 장치, 정보 처리 방법, 및 프로그램 저장 매체 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7143445B1 (ko) |
EP (1) | EP1058255B1 (ko) |
KR (1) | KR100711171B1 (ko) |
DE (1) | DE60042185D1 (ko) |
Cited By (3)
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KR20010015037A (ko) * | 1999-06-16 | 2001-02-26 | 니시무로 타이죠 | 기억 매체 및 이 기억 매체를 사용한 콘텐츠 보호 방법 |
US7788728B2 (en) | 2004-01-08 | 2010-08-31 | Samsung Electronics Co., Ltd. | Method and apparatus for limiting number of times contents can be accessed using hash chain |
WO2011139134A3 (ko) * | 2010-05-07 | 2012-02-02 | 삼성전자 주식회사 | 저장 장치의 인증 방법, 기계로 읽을 수 있는 저장 매체 및 호스트 장치 |
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2000
- 2000-05-23 US US09/576,621 patent/US7143445B1/en not_active Expired - Lifetime
- 2000-05-30 EP EP00111587A patent/EP1058255B1/en not_active Expired - Lifetime
- 2000-05-30 KR KR1020000029219A patent/KR100711171B1/ko active IP Right Grant
- 2000-05-30 DE DE60042185T patent/DE60042185D1/de not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010015037A (ko) * | 1999-06-16 | 2001-02-26 | 니시무로 타이죠 | 기억 매체 및 이 기억 매체를 사용한 콘텐츠 보호 방법 |
US7788728B2 (en) | 2004-01-08 | 2010-08-31 | Samsung Electronics Co., Ltd. | Method and apparatus for limiting number of times contents can be accessed using hash chain |
WO2011139134A3 (ko) * | 2010-05-07 | 2012-02-02 | 삼성전자 주식회사 | 저장 장치의 인증 방법, 기계로 읽을 수 있는 저장 매체 및 호스트 장치 |
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Publication number | Publication date |
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KR100711171B1 (ko) | 2007-04-27 |
EP1058255A3 (en) | 2004-03-31 |
EP1058255B1 (en) | 2009-05-13 |
DE60042185D1 (de) | 2009-06-25 |
EP1058255A2 (en) | 2000-12-06 |
US7143445B1 (en) | 2006-11-28 |
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