JP2012518972A - 更新可能なコンテンツ保護を有するコンテンツ配布 - Google Patents
更新可能なコンテンツ保護を有するコンテンツ配布 Download PDFInfo
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Abstract
【選択図】図1
Description
Claims (19)
- 命令を実行するよう構成されたプロセッサーを有する再生用デバイス内の、コンテンツファイルに適応される暗号化を更新するためのプロセッサーのコントロール方法であって、
前記プロセッサーは、
前記コンテンツファイルを再生するために使用される、少なくとも1つのマイクロコードファンクションの特定の変数を決定する工程と、
前記再生用デバイスの内部メモリー内に、変数が記憶されているかどうかを判定し、前記特定の変数が、前記記憶されている変数に含まれているかどうかを判定する工程と、
前記特定の変数が前記記憶されている変数に含まれていない場合、前記再生用デバイスと通信しているメディアデバイス内に設けられたメモリー内の変数記憶部から、前記特定の変数を検索する工程と、
前記コンテンツファイルにアクセスするために、前記特定の変数を使用する工程とを実行することを特徴とする前記プロセッサーのコントロール方法。 - 前記特定の変数を決定する工程は、その内部において、前記特定の変数が特定された選択ファイルにアクセスする工程を含む請求項1に記載の方法。
- 前記選択ファイルにアクセスする工程は、前記メディアデバイス内に設けられた前記メモリーの変数記憶部内の前記選択ファイルにアクセスする工程を含む請求項2に記載の方法。
- 前記再生用デバイス上の前記記憶されている変数にアクセスする工程は、前記再生用デバイスの製造時にロードされた、所定の数の変数にアクセスする工程を含む請求項1に記載の方法。
- 前記メディアデバイス内に設けられた前記メモリー内の前記変数記憶部から、前記特定の変数を検索する工程は、前記コンテンツファイルのダウンロード時にロードされた、所定の数の変数を検索する工程を含む請求項1に記載の方法。
- 前記内部メモリー内に前記変数が記憶されているかどうかを判定する工程は、前記内部メモリー内に前記変数が記憶されていないことを判別する工程を含む請求項1に記載の方法。
- さらに、少なくとも1つの異なるタイプの変数のために、前記決定する工程、前記判別する工程、前記検索する工程および前記使用する工程が、繰り返されることを含む請求項1に記載の方法。
- 前記コンテンツファイルにアクセスするために、前記特定の変数を使用する工程は、前記コンテンツファイルが再生される前に、前記メディアデバイスを認証するために前記特定の変数を使用する工程を含む請求項1に記載の方法。
- 前記コンテンツファイルにアクセスするために、前記特定の変数を使用する工程は、前記コンテンツファイルの再生を可能とするため、前記コンテンツファイルのセグメントの復号化に前記特定の変数を使用する工程を含む請求項1に記載の方法。
- さらに、前記特定の変数を前記再生用デバイス上に記憶する工程を含む請求項1に記載の方法。
- さらに、前記再生用デバイスが前記特定の変数にアクセスおよび使用することを許容するものの、前記特定の変数が前記再生用デバイス上に記憶されることを防止する工程を含む請求項1に記載の方法。
- 再生用デバイスであって、
少なくとも1つのマイクロコードファンクションの変数を含む変数記憶部を有する、少なくとも1つのメモリーと、
少なくとも1つの特定の変数を決定するための命令と、前記特定の変数を取得するために、前記少なくとも1つのメモリーの前記変数記憶部にアクセスするための命令と、前記再生用デバイスと通信しているメディアデバイスに、ダウンロードされたコンテンツファイルを復号化するために前記特定の変数を使用するための命令とを実行するよう構成されたプロセッサーとを含むことを特徴とする前記再生用デバイス。 - 前記少なくとも1つのメモリーは、前記再生用デバイス内の内部メモリーと、前記プロセッサーと通信しているメディアデバイスとの一方を含む請求項12に記載の再生用デバイス。
- 前記内部メモリーは、所定の数の変数を含む請求項13に記載の再生用デバイス。
- 前記メディアデバイスは、前記コンテンツファイルとともにダウンロードされた変数を含む請求項12に記載の再生用デバイス。
- 前記プロセッサーは、前記メディアデバイス上に設けられた前記変数記憶部内の選択ファイルにアクセスすることにより、前記少なくとも1つの特定の変数を決定する請求項12に記載の再生用デバイス。
- 前記プロセッサーは、さらに、前記選択ファイルからキーを取得し、前記変数の復号化するために前記キーを使用する命令を実行するよう構成されている請求項16に記載の再生用デバイス。
- 前記プロセッサーは、前記メディアデバイスを認証するために使用される変数と、前記コンテンツファイルを復号化するために使用される変数とを決定するよう構成されている請求項12に記載の再生用デバイス。
- 前記再生用デバイスは、さらに、プレイヤーとメディアデバイスを含んでいる請求項12に記載の再生用デバイス。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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US15548909P | 2009-02-25 | 2009-02-25 | |
US61/155,489 | 2009-02-25 | ||
US15905409P | 2009-03-10 | 2009-03-10 | |
US61/159,054 | 2009-03-10 | ||
PCT/US2010/025457 WO2010099351A1 (en) | 2009-02-25 | 2010-02-25 | Content distribution with renewable content protection |
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JP2012518972A true JP2012518972A (ja) | 2012-08-16 |
JP2012518972A5 JP2012518972A5 (ja) | 2012-10-18 |
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JP2011552162A Pending JP2012518972A (ja) | 2009-02-25 | 2010-02-25 | 更新可能なコンテンツ保護を有するコンテンツ配布 |
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Country | Link |
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US (1) | US20120272068A9 (ja) |
EP (1) | EP2401867A4 (ja) |
JP (1) | JP2012518972A (ja) |
CN (1) | CN102414751A (ja) |
WO (1) | WO2010099351A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11734393B2 (en) | 2004-09-20 | 2023-08-22 | Warner Bros. Entertainment Inc. | Content distribution with renewable content protection |
US20060064386A1 (en) * | 2004-09-20 | 2006-03-23 | Aaron Marking | Media on demand via peering |
US8793762B2 (en) | 2004-09-20 | 2014-07-29 | Secure Content Storage Association Llc | Simple nonautonomous peering network media |
JP2012533805A (ja) * | 2009-07-17 | 2012-12-27 | セキュアー コンテント ストレージ アソシエイション, リミテッド ライアビリティ カンパニー | シンプルな非自律的ピアリングメディア複製検出器 |
FR3038415B1 (fr) * | 2015-07-01 | 2017-08-11 | Viaccess Sa | Procede de fourniture d’un contenu multimedia protege |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001101083A (ja) * | 1999-09-29 | 2001-04-13 | Sony Corp | 情報管理方法及び装置 |
JP2002009754A (ja) * | 2000-06-21 | 2002-01-11 | Sony Corp | 情報記録装置、情報再生装置、暗号処理キー更新方法、並びにプログラム提供媒体 |
JP2004532495A (ja) * | 2001-03-28 | 2004-10-21 | クリプターグラフィー リサーチ インコーポレイテッド | 長期にリニューアル可能なセキュリティを提供するコンテンツセキュリティレイヤ |
WO2006077850A1 (ja) * | 2005-01-18 | 2006-07-27 | Matsushita Electric Industrial Co., Ltd. | データ格納方法、データ再生方法、データ記録装置、データ再生装置および記録媒体 |
JP2007043336A (ja) * | 2005-08-01 | 2007-02-15 | Sony Corp | 情報処理装置、情報処理方法、および情報記録媒体、並びにコンピュータ・プログラム |
WO2008034726A1 (de) * | 2006-09-20 | 2008-03-27 | Nokia Siemens Networks Gmbh & Co. Kg | Vorrichtung und verfahren zur gesicherten verteilung von inhalten in einem telekommunikationsnetzwerk |
WO2008100396A1 (en) * | 2007-02-12 | 2008-08-21 | Sony Corporation | Packaged media encryption using stored key table |
US20080279376A1 (en) * | 2007-05-09 | 2008-11-13 | International Business Machines Corporation | System, method, and service for performing unified broadcast encryption and traitor tracing for digital content |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4577289A (en) * | 1983-12-30 | 1986-03-18 | International Business Machines Corporation | Hardware key-on-disk system for copy-protecting magnetic storage media |
US6092195A (en) * | 1997-11-14 | 2000-07-18 | Castlewood Systems, Inc. | Encryption of defects map |
JP3581001B2 (ja) * | 1998-01-20 | 2004-10-27 | 富士通株式会社 | 記憶装置、記憶媒体及び識別情報記録方法 |
US6029259A (en) * | 1998-06-15 | 2000-02-22 | T.T.R. Technologies Ltd. | Method and system for authenticating digital optical media |
JP2001216357A (ja) * | 2000-02-01 | 2001-08-10 | Toshiba Corp | ソフトウェアのライセンス管理方法および電子機器並びに記録媒体 |
AU2001271302A1 (en) * | 2000-06-12 | 2001-12-24 | Zendit | Encryption system that dynamically locates keys |
CN100401667C (zh) * | 2000-06-21 | 2008-07-09 | 索尼公司 | 信息记录/再生装置及方法 |
US7017044B1 (en) * | 2000-08-02 | 2006-03-21 | Maxtor Corporation | Extremely secure method for keying stored contents to a specific storage device |
US7987510B2 (en) * | 2001-03-28 | 2011-07-26 | Rovi Solutions Corporation | Self-protecting digital content |
US7088823B2 (en) * | 2002-01-09 | 2006-08-08 | International Business Machines Corporation | System and method for secure distribution and evaluation of compressed digital information |
US7533027B2 (en) * | 2002-04-02 | 2009-05-12 | Warner Bros. Entertainment Inc. | Methods and apparatus for uniquely identifying a large number of film prints |
KR100965437B1 (ko) * | 2003-06-05 | 2010-06-24 | 인터트러스트 테크놀로지즈 코포레이션 | P2p 서비스 편성을 위한 상호운용 시스템 및 방법 |
AU2005223288B2 (en) * | 2004-03-16 | 2009-03-26 | Majitek Pty Ltd | Digital rights management |
KR101059181B1 (ko) * | 2006-05-16 | 2011-08-25 | 케이디디아이 가부시키가이샤 | 암호화 장치, 복호 장치, 라이센스 발행 장치, 및 콘텐츠 데이터 생성 방법 |
JP4865418B2 (ja) * | 2006-06-23 | 2012-02-01 | キヤノン株式会社 | ライセンス管理システム、管理サーバ装置、およびその制御方法、プログラム |
KR100807739B1 (ko) * | 2007-05-18 | 2008-02-28 | 삼성전자주식회사 | Drm 라이센스 저장 장치, 저장 시스템 및 저장 방법 |
JP4396737B2 (ja) * | 2007-07-17 | 2010-01-13 | ソニー株式会社 | 情報処理装置、コンテンツ提供システム、および情報処理方法、並びにコンピュータ・プログラム |
US8260714B2 (en) * | 2007-08-09 | 2012-09-04 | Panasonic Corporation | Terminal apparatus and system thereof |
-
2010
- 2010-02-25 US US12/713,111 patent/US20120272068A9/en not_active Abandoned
- 2010-02-25 WO PCT/US2010/025457 patent/WO2010099351A1/en active Application Filing
- 2010-02-25 JP JP2011552162A patent/JP2012518972A/ja active Pending
- 2010-02-25 EP EP10746857.1A patent/EP2401867A4/en not_active Withdrawn
- 2010-02-25 CN CN201080018992.0A patent/CN102414751A/zh active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001101083A (ja) * | 1999-09-29 | 2001-04-13 | Sony Corp | 情報管理方法及び装置 |
JP2002009754A (ja) * | 2000-06-21 | 2002-01-11 | Sony Corp | 情報記録装置、情報再生装置、暗号処理キー更新方法、並びにプログラム提供媒体 |
JP2004532495A (ja) * | 2001-03-28 | 2004-10-21 | クリプターグラフィー リサーチ インコーポレイテッド | 長期にリニューアル可能なセキュリティを提供するコンテンツセキュリティレイヤ |
WO2006077850A1 (ja) * | 2005-01-18 | 2006-07-27 | Matsushita Electric Industrial Co., Ltd. | データ格納方法、データ再生方法、データ記録装置、データ再生装置および記録媒体 |
JP2007043336A (ja) * | 2005-08-01 | 2007-02-15 | Sony Corp | 情報処理装置、情報処理方法、および情報記録媒体、並びにコンピュータ・プログラム |
WO2008034726A1 (de) * | 2006-09-20 | 2008-03-27 | Nokia Siemens Networks Gmbh & Co. Kg | Vorrichtung und verfahren zur gesicherten verteilung von inhalten in einem telekommunikationsnetzwerk |
WO2008100396A1 (en) * | 2007-02-12 | 2008-08-21 | Sony Corporation | Packaged media encryption using stored key table |
US20080279376A1 (en) * | 2007-05-09 | 2008-11-13 | International Business Machines Corporation | System, method, and service for performing unified broadcast encryption and traitor tracing for digital content |
Also Published As
Publication number | Publication date |
---|---|
EP2401867A1 (en) | 2012-01-04 |
CN102414751A (zh) | 2012-04-11 |
US20100218000A1 (en) | 2010-08-26 |
US20120272068A9 (en) | 2012-10-25 |
EP2401867A4 (en) | 2013-11-13 |
WO2010099351A1 (en) | 2010-09-02 |
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