JP4703209B2 - 条件付きアクセスからデジタル権利管理への変換 - Google Patents
条件付きアクセスからデジタル権利管理への変換Info
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Description
210 秘密および規則
215 ライセンス発行元
220 要求、コンテンツ、IDトークン
225 ライセンス
230 消費者装置
240 コンテンツディストリビュータ
310 コンテンツ
330 権利
340 コンテンツ
350 ライセンス
410 受信側
415 コンテンツ保護情報
425 コンテンツ
430 DRMライセンス
435 コンテンツ
440 コンテンツ
445 パッケージデータ
721 処理装置
722 システムメモリ
723 システムバス
732 ハードディスクドライブインターフェース
733 磁気ディスクドライブインターフェース
734 光ドライブインターフェース
735 オペレーティングシステム
736 アプリケーションプログラム
736a アプリケーションプログラム
736b アプリケーションプログラム
737 他のプログラムモジュール
738 プログラムデータ
740 キーボード
746 シリアルポートインターフェース
747 モニタ
748 ビデオアダプタ
749a リモートコンピュータ
749b リモートコンピュータ
751 ローカルエリアネットワーク
752 ワイドエリアネットワーク
753 ネットワークインターフェース
754 モデム
Claims (30)
- 娯楽メディア環境内で、コンテンツが別のコンテンツ保護方式を元にしていてもコンテンツ保護方式によって定義された使用権に従って前記コンテンツを消費するために使用されるコンテンツライセンスを作成する方法であって、
複数の受信側にブロードキャストされ、かつ複数の断続的に更新される鍵によって暗号化された条件付きアクセス保護コンテンツを受信側において受信するステップであって、該受信側は、条件付きアクセスコンテンツ保護方式を使用する、ステップと、
前記条件付きアクセス保護コンテンツに関連する使用権を判定し、管理し、実施するために使用される情報を含む条件付きアクセスコンテンツ保護情報を前記受信側において受信するステップと、
前記条件付きアクセスコンテンツ保護情報および前記条件付きアクセス保護コンテンツを宛先装置に対して前記受信側が送信するステップであって、該宛先装置は、デジタル権利管理(DRM)コンテンツ保護方式を使用する、ステップと、
前記宛先装置上でコンテンツがどのようにまたどのような条件下で消費され得るかを指定する、コンテンツプロバイダによって定義された前記使用権を判定するために前記条件付きアクセスコンテンツ保護情報を前記宛先装置が解釈するステップと、
解釈された前記条件付きアクセスコンテンツ保護情報に基づいて、前記宛先装置内でデジタル権利を実施するために使用される前記使用権に従ったコンテンツライセンスを前記宛先装置が作成するステップであって、該コンテンツライセンスは、1つまたは複数のデジタル権利管理鍵を含む、ステップと
を備えることを特徴とする方法。 - 前記宛先装置が前記条件付きアクセス保護コンテンツの受信側と前記宛先装置との間のセキュア通信チャネルを確立するための信頼できる装置であることを認証するステップをさらに備えることを特徴とする請求項1に記載の方法。
- 前記受信側は、条件付きアクセス保護された装置であることを特徴とする請求項1または2のいずれかに記載の方法。
- 前記宛先装置は、前記複数の断続的に更新される鍵を使用して前記条件付きアクセス保護コンテンツを解読して、消費可能コンテンツを作成し、また前記1つまたは複数のデジタル権利管理鍵を使用して、前記消費可能コンテンツを暗号化することを特徴とする請求項1乃至3のいずれか1つに記載の方法。
- 前記1つまたは複数のデジタル権利管理鍵は、前記複数の断続的に更新される鍵の少なくとも一部を含むことを特徴とする請求項1乃至3のいずれか1つに記載の方法。
- 前記受信側は、前記複数の断続的に更新される鍵を使用して前記条件付きアクセス保護コンテンツを解読して、消費可能コンテンツを作成することを特徴とする請求項1または2のいずれかに記載の方法。
- 前記受信側は、スマートカードまたはセキュリティ保護されたチップのうちの少なくとも1つであり、前記宛先装置は、前記条件付きアクセスコンテンツ保護情報を解釈するためのセキュリティ保護されたライブラリソフトウェアを含むことを特徴とする請求項6に記載の方法。
- 前記受信側は、前記複数の断続的に更新される鍵を使用して前記条件付きアクセス保護コンテンツを解読して消費可能コンテンツを作成し、前記条件付きアクセスコンテンツ保護情報を前記宛先装置に送信し、該宛先装置は、前記条件付きアクセスコンテンツ保護情報を解釈し、前記コンテンツライセンスを作成するライセンスサーバに前記コンテンツ保護情報および前記コンテンツライセンスの要求を送信することを特徴とする請求項1に記載の方法。
- 前記宛先装置は、前記複数の断続的に更新される鍵を使用して前記条件付きアクセスコンテンツ保護情報を解読して消費可能コンテンツを作成し、次いで前記1つまたは複数のデジタル権利管理鍵を使用して、前記消費可能コンテンツを暗号化することを特徴とする請求項1に記載の方法。
- 前記1つまたは複数のデジタル権利管理鍵は、前記複数の断続的に更新される鍵のうちの少なくとも一部を含むことを特徴とする請求項1に記載の方法。
- 娯楽メディア環境内で、コンテンツが別のコンテンツ保護方式を元にしていてもコンテンツ保護方式によって定義された使用権に従って前記コンテンツを消費するために使用されるコンテンツライセンスを作成する方法であって、
複数の受信側にブロードキャストされ、また複数の断続的に更新される鍵によって暗号化された条件付きアクセス保護コンテンツを受信側において受信するステップであって、該受信側は、条件付きアクセスコンテンツ保護方式を使用する、ステップと、
前記条件付きアクセス保護コンテンツに関連する使用権を判定し、管理し、実施するために使用される情報を含む条件付きアクセスコンテンツ保護情報をライセンスサーバにおいて受信するステップと、
前記条件付きアクセスコンテンツ保護情報を解釈することによって前記使用権を前記ライセンスサーバにおいて判定するステップであって、前記使用権は、宛先装置上でコンテンツがどのようにまたどのような条件下で消費され得るかを指定し、該宛先装置は、デジタル権利管理(DRM)コンテンツ保護方式を使用する、ステップと、
解釈された前記条件付きアクセスコンテンツ保護情報に従って、1つまたは複数のデジタル権利管理鍵を含むコンテンツライセンスを前記ライセンスサーバにおいて作成し、前記コンテンツライセンスを前記宛先装置に送信することによって前記宛先装置内でデジタル権利を実施するステップと
を備えることを特徴とする方法。 - 前記宛先装置が前記条件付きアクセス保護コンテンツの受信側と前記宛先装置との間のセキュア通信チャネルを確立するための信頼できる装置であることを認証するステップをさらに備えることを特徴とする請求項11に記載の方法。
- 前記受信側は、前記複数の断続的に更新される鍵を使用して前記条件付きアクセス保護コンテンツを解読して、消費可能コンテンツを作成し、前記1つまたは複数のデジタル権利管理鍵を使用して前記消費可能コンテンツを暗号化し、前記暗号化された消費可能コンテンツを前記宛先装置に送信することを特徴とする請求項12に記載の方法。
- 前記宛先装置は、前記コンテンツライセンスを使用して前コンテンツを消費することを特徴とする請求項13に記載の方法。
- 前記宛先装置は、前記消費可能コンテンツを解読し、前記コンテンツライセンス内に定義された使用権に従って第2のコンテンツライセンスを作成し、1つまたは複数の第2のデジタル権利管理鍵を使用して、解読された前記消費可能コンテンツを暗号化することを特徴とする請求項13に記載の方法。
- 前記受信側は、前記複数の断続的に更新される鍵を使用して前記条件付きアクセス保護コンテンツを解読して、消費可能コンテンツを作成し、前記消費可能コンテンツを前記宛先装置に送信し、該宛先装置は、前記1つまたは複数のデジタル権利管理鍵を使用して前記消費可能コンテンツを暗号化することを特徴とする請求項11に記載の方法。
- 前記受信側は、前記複数の断続的に更新される鍵を使用して前記条件付きアクセス保護コンテンツを解読して消費可能コンテンツを作成し、コンテンツライセンスサーバに前記条件付きアクセスコンテンツ保護情報を送信し、前記コンテンツライセンスサーバから前記コンテンツライセンスを受信し、ならびに前記宛先装置に前記コンテンツライセンスおよび前記消費可能コンテンツを送信し、該宛先装置は、前記1つまたは複数のデジタル権利管理鍵を使用して前記消費可能コンテンツを暗号化することを特徴とする請求項11に記載の方法。
- 前記暗号化された消費可能コンテンツおよびコンテンツライセンスは、前記消費可能コンテンツを消費するとき将来使用するために記憶装置内に格納されることを特徴とする請求項17に記載の方法。
- 娯楽メディア環境のために、コンテンツが別のコンテンツ保護方式を元にしていてもコンテンツ保護方式によって定義された使用権に従って前記コンテンツを消費するために使用されるコンテンツライセンスを作成する方法を実施するコンピュータ実行可能命令を保持する1つまたは複数のコンピュータ読取り可能記録媒体であって、
前記方法は、
複数の受信側にブロードキャストされ、また複数の断続的に更新される鍵によって暗号化された条件付きアクセス保護コンテンツを受信側において受信するステップであって、該受信側は、条件付きアクセスコンテンツ保護方式を使用する、ステップと、
前記条件付きアクセス保護コンテンツに関連する使用権を判定し、管理し、実施するために使用される情報を含む条件付きアクセスコンテンツ保護情報を前記受信側において受信するステップと、
前記受信側が前記条件付きアクセスコンテンツ保護情報および条件付きアクセス保護コンテンツを宛先装置に送信するステップであって、該宛先装置は、デジタル権利管理(DRM)コンテンツ保護方式を使用する、ステップと
を備え、
前記宛先装置上でコンテンツがどのようにまたどのような条件下で消費され得るかを指定する、コンテンツプロバイダによって定義された前記使用権を判定する前記宛先装置が前記条件付きアクセスコンテンツ保護情報を解釈し、
解釈された前記条件付きアクセスコンテンツ保護情報に基づいて、1つまたは複数のデジタル権利管理鍵をその内部に含むコンテンツライセンスが前記宛先装置によって前記使用権に従って作成され、前記宛先装置内のデジタル権利を実施するために使用されることを特徴とするコンピュータ読取り可能記録媒体。 - 前記宛先装置が前記条件付きアクセス保護コンテンツの受信側と前記宛先装置との間のセキュア通信チャネルを確立するための信頼できる装置であることを認証するステップをさらに備えることを特徴とする請求項19に記載のコンピュータ読取り可能記録媒体。
- 前記受信側は、パッケージされたデータを解釈し、また前記コンテンツライセンスを作成する前記宛先装置にデータのパッケージを送信することを特徴とする請求項20に記載のコンピュータ読取り可能記録媒体。
- 前記受信側は、条件付きアクセスカーネルまたはスマートカードカーネルの条件付きアクセス保護された装置であることを特徴とする請求項21に記載のコンピュータ読取り可能記録媒体。
- 前記宛先装置は、前記パッケージされたデータを解釈するためのセキュアライブラリを含むコンピュータであることを特徴とする請求項22に記載のコンピュータ読取り可能記録媒体。
- 前記パッケージされたデータは、前記複数の断続的に更新される鍵を含むことを特徴とする請求項23に記載のコンピュータ読取り可能記録媒体。
- 前記パッケージされたデータは、前記条件付きアクセス暗号化コンテンツを含むことを特徴とする請求項24に記載のコンピュータ読取り可能記録媒体。
- 前記パッケージされたデータは、前記条件付きアクセスコンテンツ保護情報を含むことを特徴とする請求項24に記載のコンピュータ読取り可能記録媒体。
- 前記条件付きアクセスコンテンツ保護情報は、前記コンピュータの前記セキュアライブラリ内に含まれるデフォルト値であることを特徴とする請求項24に記載のコンピュータ読取り可能記録媒体。
- 前記条件付きアクセスコンテンツ保護情報は、条件付きアクセス保護された装置および前記コンピュータとは別個の装置内で定義されることを特徴とする請求項24に記載のコンピュータ読取り可能記録媒体。
- 前記宛先装置は、前記複数の断続的に更新される鍵を使用して前記条件付きアクセス保護コンテンツを解読して消費可能コンテンツを作成し、コンテンツライセンスサーバに前記条件付きアクセスコンテンツ保護情報を送信し、前記コンテンツサーバから前記コンテンツライセンスを受信し、また前記1つまたは複数のデジタル権利管理鍵を使用して、前記消費可能コンテンツを暗号化することを特徴とする請求項19に記載のコンピュータ読取り可能記録媒体。
- 前記宛先装置は、パッケージされたコンテンツ内の前記複数の断続的に更新される鍵を使用して前記条件付きアクセス保護コンテンツを解読し、前記条件付きアクセスコンテンツ保護情報を解釈し、解釈された前記条件付きアクセス保護情報に基づいてコンテンツライセンスを作成し、かつ前記1つまたは複数のデジタル権利管理鍵を使用して前記消費可能コンテンツを暗号化することを特徴とする請求項19に記載のコンピュータ読取り可能記録媒体。
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US10/779,248 US7546641B2 (en) | 2004-02-13 | 2004-02-13 | Conditional access to digital rights management conversion |
US10/779,248 | 2004-02-13 |
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CN101504707B (zh) | 2011-05-18 |
CN100480947C (zh) | 2009-04-22 |
CN1658112A (zh) | 2005-08-24 |
KR101122842B1 (ko) | 2012-03-22 |
KR20060041882A (ko) | 2006-05-12 |
EP1564622A3 (en) | 2006-06-07 |
US7546641B2 (en) | 2009-06-09 |
JP2005228347A (ja) | 2005-08-25 |
EP1564622A2 (en) | 2005-08-17 |
CN101504707A (zh) | 2009-08-12 |
US20050182931A1 (en) | 2005-08-18 |
US7757299B2 (en) | 2010-07-13 |
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