KR100972831B1 - 엔크립트된 데이터의 보호방법 및 그 재생장치 - Google Patents
엔크립트된 데이터의 보호방법 및 그 재생장치 Download PDFInfo
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- KR100972831B1 KR100972831B1 KR1020030026151A KR20030026151A KR100972831B1 KR 100972831 B1 KR100972831 B1 KR 100972831B1 KR 1020030026151 A KR1020030026151 A KR 1020030026151A KR 20030026151 A KR20030026151 A KR 20030026151A KR 100972831 B1 KR100972831 B1 KR 100972831B1
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Abstract
Description
Claims (16)
- 엔크립트된 데이터를 디크립션하는 과정에서 사용될 제 1키와, 상기 엔크립트된 데이터를 재생 또는 복사의 허용 여부를 포함하는 DRM정보를 수신하는 단계;제 2키를 사용하여 상기 DRM정보를 디크립션하는 단계;상기 엔크립트된 데이터의 재생 또는 복사를 위한 신호를 수신하는 단계; 및상기 허용여부에 따라서 상기 엔크립트된 데이터의 상기 재생 또는 복사를 제어하는 단계를 포함하며,상기 제어하는 단계는,상기 허용 여부를 확인하는 단계;상기 제 2키를 사용하여 상기 제 1키를 디크립션하는 단계; 및디크립션된 상기 제 1키를 디크립션키로 사용하여 상기 엔크립트된 데이터를 디크립션하는 단계를 포함하며,상기 제 1키와 상기 DRM정보는 상기 엔크립트된 데이터에 연관되어 있고, 상기 제 1키와 상기 DRM 정보는 제 2키에 의하여 보호되며, 상기 DRM정보는 상기 엔크립트된 데이터와 별도로 관리되는 것을 특징으로 하는 엔크립트된 데이터의 보호방법.
- 제 1항에 있어서,상기 데이터, 상기 제 1,2키, 상기 DRM 정보는 광디스크로부터 수신되며,상기 제 1키는 디스크 키이고, 상기 제 2키는 히든 코드인 것을 특징으로 하는 엔크립트된 데이터의 보호방법.
- 제 2항에 있어서,상기 제 2키는, 비트 대 비트 복사 방식에 의해 복제되지 않는 저주파 성분을 갖는 워블 형상으로 기록되는 것을 특징으로 하는 엔크립트된 데이터의 보호방법.
- 제 1항에 있어서,상기 DRM정보는,상기 데이터에 대한 재생 허용 시간, 복사 회수 및 허용 여부에 대한 정보를 포함하고 있는 것을 특징으로 하는 엔크립트된 데이터의 보호방법.
- 제 1항에 있어서,상기 엔크립트된 데이터는 네트워크를 통해 수신되는 데이터 파일인 것을 특징으로 하는 엔크립트된 데이터의 보호방법.
- 리시버(receiver);디크립션부; 및엔크립트된 데이터를 디크립션하는 과정에서 사용될 제 1키와 상기 엔크립트된 데이터를 재생 또는 복사의 허용 여부를 포함하는 DRM정보를 상기 리시버를 통하여 수신하고, 제 2키를 사용하여 상기 DRM정보를 상기 디크립션부를 통하여 디크립션하고, 상기 엔크립트된 데이터의 재생 또는 복사를 위한 신호를 상기 리시버를 통하여 수신하고, 상기 허용 여부에 따라서 상기 엔크립트된 데이터의 상기 재생 또는 복사를 제어하되, 상기 제어는, 상기 허용 여부를 확인하고, 상기 제 2키를 사용하여 상기 제 1키를 디크립션하고, 디크립션된 상기 제 1키를 디크립션키로 사용하여 상기 엔크립트된 데이터를 디크립션하는 제어부를 포함하며,상기 제 1키와 상기 DRM정보는 상기 엔크립트된 데이터에 연관되어 있고, 상기 제 1키와 상기 DRM 정보는 제 2키에 의하여 보호되며, 상기 DRM정보는 상기 엔크립트된 데이터와 별도로 관리되는 것을 특징으로 하는 엔크립트된 데이터의 재생장치.
- 제 6항에 있어서,상기 리시버를 통하여 수신되는 상기 데이터, 상기 제 1,2키, 상기 DRM 정보 중 적어도 어느 하나는 광디스크로부터 수신되며,상기 제 1키는 디스크 키이고, 상기 제 2키는 히든 코드인 것을 특징으로 하는 엔크립트된 데이터의 재생장치.
- 제 7항에 있어서,상기 제 2키는, 비트 대 비트 복사 방식에 의해 복제되지 않는 저주파 성분을 갖는 워블 형상으로 기록되는 것을 특징으로 하는 엔크립트된 데이터의 재생장치.
- 제 6항에 있어서,상기 DRM정보는,상기 데이터에 대한 재생 허용 시간, 복사 회수 및 허용 여부에 대한 정보를 포함하고 있는 것을 특징으로 하는 엔크립트된 데이터의 재생장치.
- 제 6항에 있어서,상기 리시버는,상기 엔크립트된 데이터를 네트워크를 통해 수신하는 것을 특징으로 하는 엔크립트된 데이터의 재생장치.
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JP2006507824A JP2006524409A (ja) | 2003-04-24 | 2004-04-24 | 記録媒体の複写防止情報管理方法 |
CA002523149A CA2523149A1 (en) | 2003-04-24 | 2004-04-24 | Method for managing copy protection information of recording medium |
PCT/KR2004/000954 WO2004095438A1 (en) | 2003-04-24 | 2004-04-24 | Method for managing copy protection information of recording medium |
AU2004232281A AU2004232281A1 (en) | 2003-04-24 | 2004-04-24 | Method for managing copy protection information of recording medium |
MXPA05011373A MXPA05011373A (es) | 2003-04-24 | 2004-04-24 | Metodo para manejar informacion de proteccion de copia de medio de grabacion. |
RU2005132849/28A RU2361293C2 (ru) | 2003-04-24 | 2004-04-24 | Способ управления информацией для защиты от копирования носителя записи |
EP04729376A EP1616324A4 (en) | 2003-04-24 | 2004-04-24 | METHOD FOR MANAGING ANTI-COPY PROTECTION INFORMATION OF A RECORDING MEDIUM |
CNB2004800108970A CN100367247C (zh) | 2003-04-24 | 2004-04-24 | 用于管理记录介质的复制保护信息的方法 |
BRPI0409612-6A BRPI0409612A (pt) | 2003-04-24 | 2004-04-24 | método para gerenciamento de informação de proteção de cópia de meio de gravação |
TW093111656A TW200425082A (en) | 2003-04-24 | 2004-04-26 | Method for managing copy protection information of recording medium |
US10/831,197 US20040213408A1 (en) | 2003-04-24 | 2004-04-26 | Method for managing copy protection information of recording medium |
MYPI20041522 MY150421A (en) | 2003-04-24 | 2004-04-26 | Protection method of encrypted data and playback apparatus thereof |
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- 2004-04-24 AU AU2004232281A patent/AU2004232281A1/en not_active Abandoned
- 2004-04-24 JP JP2006507824A patent/JP2006524409A/ja active Pending
- 2004-04-24 CA CA002523149A patent/CA2523149A1/en not_active Abandoned
- 2004-04-24 CN CNB2004800108970A patent/CN100367247C/zh not_active Expired - Fee Related
- 2004-04-24 RU RU2005132849/28A patent/RU2361293C2/ru not_active IP Right Cessation
- 2004-04-24 WO PCT/KR2004/000954 patent/WO2004095438A1/en active Application Filing
- 2004-04-24 BR BRPI0409612-6A patent/BRPI0409612A/pt not_active Application Discontinuation
- 2004-04-24 EP EP04729376A patent/EP1616324A4/en not_active Withdrawn
- 2004-04-26 TW TW093111656A patent/TW200425082A/zh unknown
- 2004-04-26 MY MYPI20041522 patent/MY150421A/en unknown
- 2004-04-26 US US10/831,197 patent/US20040213408A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
EP1616324A4 (en) | 2009-05-27 |
RU2361293C2 (ru) | 2009-07-10 |
MXPA05011373A (es) | 2005-12-15 |
KR20040092651A (ko) | 2004-11-04 |
WO2004095438A1 (en) | 2004-11-04 |
TW200425082A (en) | 2004-11-16 |
US20040213408A1 (en) | 2004-10-28 |
RU2005132849A (ru) | 2007-05-27 |
CN100367247C (zh) | 2008-02-06 |
MY150421A (en) | 2014-01-15 |
CN1777933A (zh) | 2006-05-24 |
BRPI0409612A (pt) | 2006-04-18 |
AU2004232281A1 (en) | 2004-11-04 |
JP2006524409A (ja) | 2006-10-26 |
CA2523149A1 (en) | 2004-11-04 |
EP1616324A1 (en) | 2006-01-18 |
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