KR20030001482A - 콘텐트 아이템을 안전하게 저장하는 수신 디바이스와,재생 디바이스 - Google Patents
콘텐트 아이템을 안전하게 저장하는 수신 디바이스와,재생 디바이스 Download PDFInfo
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Abstract
Description
Claims (12)
- 콘텐트 아이템(102)을 안전하게 저장하는 수신 디바이스(110)로서,상기 콘텐트 아이템(102)을 다운로딩하는 다운로딩 수단(201)과,상기 다운로딩된 콘텐트 아이템(102)을 저장 매체(111)에 기입하는 기입 수단(203)과,상기 저장 매체(111)에 상기 다운로딩된 콘텐트 아이템(102)을 기입하기 위한 허가를 적어도 포함하는 라이센스 파일(141)을 라이센스 서버(140)로부터 얻는 라이센싱 수단(204)을 포함하는, 상기 수신 디바이스에 있어서,재생 디바이스들의 그룹(G1, G2, G3)과 연관된 암호화 키로 상기 라이센스 파일(141)을 암호화하고, 상기 암호화된 라이센스 파일(141)을 상기 저장 매체(111)에 기입하기 위하여 상기 기입 수단(203)에 상기 암호화된 라이센스 파일(141)을 제공하는 라이센스 록킹 수단(license locking means)(205)을 포함하는 것을 특징으로 하는 수신 디바이스(110).
- 제 1 항에 있어서,상기 라이센스 록킹 수단(205)은 라이센스 록커 암호화 키(License Locker Encryption Key)(LLEK)로 상기 라이센스 파일(141)을 암호화하고, 재생 디바이스들의 상기 그룹(G1, G2, G3)과 연관된 암호화 키로 상기 LLEK를 암호화하고, 암호화된 상기 LLEK를 상기 저장 매체(111)에 기입하도록 상기 기입 수단(203)에 상기 암호화된 LLEK를 부가적으로 제공하도록 배열되는, 수신 디바이스(110).
- 제 1 항에 있어서,상기 암호화 키는 공용/비밀 키 쌍(public/secret key pair)중 공용 키인, 수신 디바이스(110).
- 제 1 항에 있어서,상기 콘텐트 아이템(102)은 오디오 및 비디오 데이터중 적어도 하나를 포함하는, 수신 디바이스(110).
- 제 1 항에 있어서,상기 라이센스 록킹 수단(205)은 상기 그룹(G1, G2, G3)의 식별자의 선택을 수신하고, 상기 선택과 연관된 암호화 키를 키서버(130)로부터 얻도록 더 배열되는, 수신 디바이스(110).
- 저장 매체(111)상에 저장된 콘텐트 아이템(102)을 재생하는 재생 디바이스(121)로서, 상기 저장 매체(111)상에 저장된, 상기 콘텐트 아이템(102)에 대한 라이센스 파일(141)에서의 허가에 따라 상기 콘텐트 아이템(102)을 재생하는 재생 수단(305)을 포함하는, 상기 재생 디바이스에 있어서,상기 라이센스 파일(141)은 암호화되어 상기 저장 매체(111)상에 저장되고,상기 재생 디바이스(121)는,재생 디바이스들의 각각의 그룹(G1, G2, G3)과 각각 연관된, 하나 이상의 해독 키들을 저장하는 보안 저장 수단(309)과,저장된 해독 키가 암호화된 라이센스 파일(141)을 해독하는데 적합한지를 체크하고, 적합하다면, 상기 저장된 해독 키를 이용하여 상기 라이센스 파일(141)을 해독하고, 상기 해독된 라이센스 파일(141)을 상기 재생 수단(305)에 제공하는, 디코딩 수단(302)을 더 포함하는 것을 특징으로 하는 재생 디바이스(121).
- 제 6 항에 있어서,상기 라이센스 파일(141)은 라이센스 록커 암호화 키(License Locker Encryption Key)로 암호화되어 저장되고, 상기 LLEK는 LLEK 암호화 키로 암호화되어 상기 저장 매체(111)상에 저장되고, 상기 하나 이상의 해독 키들은 LLEK 해독 키들이고, 상기 디코딩 수단(302)은 저장된 LLEK 해독 키가 암호화된 LLEK를 해독하는데 적합한지를 체크하고, 적합하다면, 상기 저장된 LLEK 해독 키를 이용하여 상기 암호화된 LLEK로부터 LLEK를 얻고, 상기 LLEK를 이용하여 상기 라이센스 파일(141)을 해독하도록 배열되는, 재생 디바이스(121).
- 제 6 항에 있어서,상기 콘텐트 아이템(102)은 오디오 및 비디오 데이터중 적어도 하나를 포함하는, 재생 디바이스(121).
- 제 6 항에 있어서,상기 저장된 해독 키는 공용/비밀 키 쌍중 비밀 키인, 재생 디바이스(121).
- 제 6 항에 있어서,상기 재생 디바이스(121)와 연관된 공용/비밀 키 쌍중 공용 키를 콘텐트 분배 관리 시스템(Content Distribution Management System)(CDMS)(310)에 등록하고, 상기 공용/비밀 키 쌍중 비밀 키는 상기 보안 저장 수단(309)에 저장되고, 상기 공용 키로 암호화된 재생 디바이스들의 그룹(G1, G2, G3)과 연관된 해독 키를 수신하고, 상기 암호화된 해독 키를 해독하고, 상기 해독 키를 상기 보안 저장 수단(309)에 저장하는, 등록 수단(306)을 더 포함하는, 재생 디바이스(121).
- 컴퓨터 프로그램 제품을 실행할 때, 프로그래밍가능한 디바이스를 수신 디바이스(110)로서 기능하도록 인에이블링하는 상기 컴퓨터 프로그램 제품(200)으로서,콘텐트 아이템(102)을 다운로딩하는 다운로딩 수단(201)과,상기 다운로딩된 콘텐트 아이템(102)을 저장 매체(111)에 기입하는 기입 수단(203)과,상기 다운로딩된 콘텐트 아이템(102)을 상기 저장 매체(111)에 기입하기 위한 허가를 적어도 포함하는 라이센스 파일(141)을 라이센스 서버(140)로부터 얻는 라이센싱 수단(204)을 포함하는 상기 컴퓨터 프로그램 제품(200)에 있어서,재생 디바이스들의 그룹(G1, G2, G3)과 연관된 암호화 키로 상기 라이센스 파일(141)을 암호화하고, 상기 암호화된 라이센스 파일(141)을 상기 저장 매체(111)에 기입하기 위하여 상기 기입 수단(203)에 상기 암호화된 라이센스 파일(141)을 제공하는, 라이센스 록킹 수단(205)을 더 포함하는 것을 특징으로 하는, 컴퓨터 프로그램 제품(200).
- 컴퓨터 프로그램 제품을 실행할 때, 프로그래밍가능한 디바이스를 재생 디바이스(121)로서 기능하도록 인에이블링하는 상기 컴퓨터 프로그램 제품(300)으로서,저장 매체(111)상에 저장된, 콘텐트 아이템(102)에 대한 라이센스 파일(141)에서의 허가에 따라 상기 콘텐트 아이템(102)을 재생하는 재생 수단(305)을 포함하는, 상기 컴퓨터 프로그램 제품(300)에 있어서,상기 라이센스 파일(141)은 상기 저장 매체(111)상에서 암호화되어 저장되고,상기 컴퓨터 프로그램 제품은, 저장된 해독 키가 상기 암호화된 라이센스 파일(141)을 해독하는데 적합한지를 체크하고, 적합하다면, 상기 저장된 해독 키를 이용하여 상기 라이센스 파일(141)을 해독하고, 상기 해독된 라이센스 파일(141)을 상기 재생 수단(305)에 제공하는, 디코딩 수단(302)을 더 포함하는 것을 특징으로 하는, 컴퓨터 프로그램 제품(300).
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JP (1) | JP4294322B2 (ko) |
KR (1) | KR100932944B1 (ko) |
CN (1) | CN100458640C (ko) |
AU (1) | AU2002225292A1 (ko) |
BR (2) | BRPI0204473B1 (ko) |
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-
2002
- 2002-01-28 KR KR1020027015176A patent/KR100932944B1/ko active IP Right Grant
- 2002-01-28 EP EP02715645A patent/EP1370921A2/en not_active Ceased
- 2002-01-28 AU AU2002225292A patent/AU2002225292A1/en not_active Abandoned
- 2002-01-28 PL PL02373366A patent/PL373366A1/xx not_active Application Discontinuation
- 2002-01-28 BR BRPI0204473-0A patent/BRPI0204473B1/pt unknown
- 2002-01-28 RU RU2003130084/09A patent/RU2290767C2/ru active IP Right Revival
- 2002-01-28 MX MXPA02011091A patent/MXPA02011091A/es active IP Right Grant
- 2002-01-28 JP JP2002571970A patent/JP4294322B2/ja not_active Expired - Lifetime
- 2002-01-28 CN CNB028016211A patent/CN100458640C/zh not_active Expired - Lifetime
- 2002-01-28 BR BR0204473-0A patent/BR0204473A/pt active IP Right Grant
- 2002-01-28 WO PCT/IB2002/000245 patent/WO2002073378A2/en active Application Filing
- 2002-03-08 US US10/094,067 patent/US7124304B2/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8234493B2 (en) | 2004-11-17 | 2012-07-31 | Samsung Electronics Co., Ltd. | Method for transmitting content in home network using user-binding |
Also Published As
Publication number | Publication date |
---|---|
KR100932944B1 (ko) | 2009-12-21 |
US7124304B2 (en) | 2006-10-17 |
WO2002073378A3 (en) | 2003-10-02 |
BR0204473A (pt) | 2003-05-13 |
US20020174354A1 (en) | 2002-11-21 |
WO2002073378A2 (en) | 2002-09-19 |
JP2004534291A (ja) | 2004-11-11 |
CN100458640C (zh) | 2009-02-04 |
MXPA02011091A (es) | 2003-06-09 |
BRPI0204473B1 (pt) | 2017-11-28 |
PL373366A1 (en) | 2005-08-22 |
AU2002225292A1 (en) | 2002-09-24 |
EP1370921A2 (en) | 2003-12-17 |
RU2290767C2 (ru) | 2006-12-27 |
JP4294322B2 (ja) | 2009-07-08 |
RU2003130084A (ru) | 2005-04-10 |
CN1471663A (zh) | 2004-01-28 |
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