JP4220213B2 - 著作物保護システム、鍵管理装置及び利用者装置 - Google Patents

著作物保護システム、鍵管理装置及び利用者装置 Download PDF

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Publication number
JP4220213B2
JP4220213B2 JP2002303509A JP2002303509A JP4220213B2 JP 4220213 B2 JP4220213 B2 JP 4220213B2 JP 2002303509 A JP2002303509 A JP 2002303509A JP 2002303509 A JP2002303509 A JP 2002303509A JP 4220213 B2 JP4220213 B2 JP 4220213B2
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Japanese (ja)
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JP2003204320A (ja
JP2003204320A5 (enExample
Inventor
稔久 中野
なつめ 松崎
誠 館林
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Priority to JP2002303509A priority Critical patent/JP4220213B2/ja
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Publication of JP2003204320A5 publication Critical patent/JP2003204320A5/ja
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JP2002303509A 2001-10-26 2002-10-17 著作物保護システム、鍵管理装置及び利用者装置 Expired - Fee Related JP4220213B2 (ja)

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Application Number Priority Date Filing Date Title
JP2002303509A JP4220213B2 (ja) 2001-10-26 2002-10-17 著作物保護システム、鍵管理装置及び利用者装置

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001329863 2001-10-26
JP2001-329863 2001-10-26
JP2002303509A JP4220213B2 (ja) 2001-10-26 2002-10-17 著作物保護システム、鍵管理装置及び利用者装置

Publications (3)

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JP2003204320A JP2003204320A (ja) 2003-07-18
JP2003204320A5 JP2003204320A5 (enExample) 2004-07-08
JP4220213B2 true JP4220213B2 (ja) 2009-02-04

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JP2002303509A Expired - Fee Related JP4220213B2 (ja) 2001-10-26 2002-10-17 著作物保護システム、鍵管理装置及び利用者装置

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7340603B2 (en) * 2002-01-30 2008-03-04 Sony Corporation Efficient revocation of receivers
KR101022465B1 (ko) 2003-11-13 2011-03-15 삼성전자주식회사 암호화된 디지털 데이터의 복사 및 복호화 방법 및 장치
CN100568366C (zh) 2004-01-15 2009-12-09 松下电器产业株式会社 内容再现装置
JP2005311490A (ja) * 2004-04-19 2005-11-04 Sony Corp セキュア通信を行う通信システム及び方法
KR100717005B1 (ko) * 2005-04-06 2007-05-10 삼성전자주식회사 폐기 키를 결정하는 방법 및 장치와 이것을 이용하여복호화하는 방법 및 장치
KR100765750B1 (ko) 2005-05-09 2007-10-15 삼성전자주식회사 브로드캐스트 암호화 방식에 따라 효율적으로암호화/복호화하는 방법 및 장치
KR100803596B1 (ko) 2005-11-25 2008-02-19 삼성전자주식회사 폐기 메커니즘 상에서 외부 디바이스 또는 서비스를이용하는 복호화 방법 및 장치, 이를 위한 복호화 지원방법 및 장치

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JP2003204320A (ja) 2003-07-18

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