JP2009530917A5 - - Google Patents

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JP2009530917A5
JP2009530917A5 JP2009500592A JP2009500592A JP2009530917A5 JP 2009530917 A5 JP2009530917 A5 JP 2009530917A5 JP 2009500592 A JP2009500592 A JP 2009500592A JP 2009500592 A JP2009500592 A JP 2009500592A JP 2009530917 A5 JP2009530917 A5 JP 2009530917A5
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content
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information
server
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JP2009530917A (ja
JP5200204B2 (ja
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Priority claimed from PCT/US2007/063950 external-priority patent/WO2007106844A2/en
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Claims (5)

  1. ベースキーを含むメモリを有し、且つ、ネットワークに接続された登録サーバーと、
    ネットワーク及び高信頼性システム且つ不透明なシステムに接続されたコンテンツサーバーであって、前記高信頼性システム且つ不透明なシステムは、前記ベースキーを含むメモリを有すると共に、前記コンテンツサーバーによる前記ベースキーへのアクセスを防止するように構成されているようなコンテンツサーバーと、
    前記ベースキーを含む読み出し専用メモリ、及び不揮発性メモリを有し、且つ、前記ネットワークに接続された再生装置とを備えており、
    前記登録サーバーは、固有の有効化情報を前記再生装置に提供するべく構成されており、
    前記再生装置は、前記固有の有効化情報を前記不揮発性メモリ内に保存するべく構成されており、
    前記再生装置は、前記コンテンツサーバーに対してコンテンツを要求するべく構成されており、
    前記コンテンツサーバーは、再生証明書を含む技術的に保護されたコンテンツを発行するべく構成されており、
    前記コンテンツサーバーは、前記高信頼性システムから前記再生証明書を取得するべく構成されており、前記再生証明書は、前記固有の有効化情報及び前記ベースキーを使用してアクセスすることが可能な前記技術的に保護されたコンテンツの再生を可能にする情報を含んでおり、
    前記再生装置は、前記固有の有効化情報、前記ベースキー、及び前記再生証明書を使用して、前記技術的に保護されたコンテンツを再生するべく構成されていることを特徴とするコンテンツ配信ネットワーク。
  2. 前記有効化情報は暗号化された前記ベースキーによって保護され、且つ、ユーザーキー及びランダム値を含んでおり、
    前記再生装置は、前記ベースキーを使用してアクセスすることが可能な前記ユーザーキーの暗号化された複写を前記コンテンツサーバーに提供し、
    前記コンテンツサーバーは、暗号化された前記ユーザーキーと、前記技術的に保護されたコンテンツにアクセスするための少なくとも1つのキーとを前記高信頼性システムに提供し、
    前記高信頼性システムによって発行された前記再生証明書は、前記ベースキーを使用してアクセスすることが可能な暗号化された情報と、前記ユーザーキーとを含んでおり、前記暗号化された情報は、前記技術的に保護されたコンテンツにアクセスするための少なくとも1つのキーを含んでいる請求項1記載のコンテンツ配信ネットワーク。
  3. 前記ベースキー及び前記ユーザーキーを使用して暗号化された前記情報は、前記技術的に保護されたコンテンツの再生を許可するか否かを決定する請求項記載のコンテンツ配信ネットワーク
  4. 前記登録サーバーは、前記ベースキーを破棄するべく構成されている請求項記載のコンテンツ配信ネットワーク
  5. 前記登録サーバーは、前記ユーザーキーを破棄するべく構成されている請求項記載のコンテンツ配信ネットワーク
JP2009500592A 2006-03-14 2007-03-14 高信頼性システムを含む連合型デジタル権限管理機構 Active JP5200204B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US78221506P 2006-03-14 2006-03-14
US60/782,215 2006-03-14
PCT/US2007/063950 WO2007106844A2 (en) 2006-03-14 2007-03-14 Federated digital rights management scheme including trusted systems

Publications (3)

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JP2009530917A JP2009530917A (ja) 2009-08-27
JP2009530917A5 true JP2009530917A5 (ja) 2010-05-06
JP5200204B2 JP5200204B2 (ja) 2013-06-05

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JP2009500592A Active JP5200204B2 (ja) 2006-03-14 2007-03-14 高信頼性システムを含む連合型デジタル権限管理機構

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US (7) US7515710B2 (ja)
EP (1) EP1999883A4 (ja)
JP (1) JP5200204B2 (ja)
WO (1) WO2007106844A2 (ja)

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