JP2014211904A - アクセス制御を管理するシステム - Google Patents
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
- G06F21/52—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems during program execution, e.g. stack integrity ; Preventing unwanted data erasure; Buffer overflow
- G06F21/53—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems during program execution, e.g. stack integrity ; Preventing unwanted data erasure; Buffer overflow by executing in a restricted environment, e.g. sandbox or secure virtual machine
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
- G06F21/51—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems at application loading time, e.g. accepting, rejecting, starting or inhibiting executable software based on integrity or source reliability
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Abstract
Description
1.UNIX(登録商標)スタイルの許可権:(又はデフォルトのポリシ)データが通常のディレクトリツリーにおいてファイルとして記憶される。どのファイル及びディレクトリもみな、各レベルについて読出し/書込みアクセス許可66を与えられる(MHP、セクション12.6.2.7.2参照)。
a.アプリケーション(データを作成したアプリケーション)
b.組織(上記作成アプリケーションと同じ組織に属するアプリケーション)
c.ワールド(全てのアプリケーション)
2.証明書のメカニズム:上記メカニズムをオーバーライドするため及びよりきめの細かいアクセス権を与えるために、ファイル/ディレクトリの所有者は、(例えば他のグループからの)他のアプリケーションがそのようなファイル/ディレクトリにアクセスできることの(署名入りの)提示(statement)である証明書65を用意することができる。証明書65は、上述した許可リクエストファイルに含まれている。アプリケーションをロードするとすぐに、上記システムは、証明書及びポリシファイルに基づいて、アプリケーションが追加のファイルへのアクセス権を得るべきであるかを決定する(MHP、セクション12.6.2.6参照)。上記ディレクトリ/ファイルのアクセス制御メカニズムは、BD−ROMのような記録担体に対して用いられ得る。その場合、「application_id」は特定のディスクと関連するアプリケーションに対応し、「organization_id」はある組織に対応する。
Claims (9)
- コンテンツ配信システムにおいてアクセス制御を管理する方法であり、前記システムは、
所有権を有するデータを提供する少なくとも1つの組織と、
前記所有権を有するデータを操作する少なくとも1つのアプリケーションと、
前記所有権を有するデータをレンダリングし、前記アプリケーションを実行するレンダリング装置と、
を有し、
予め定義されたデータアクセスフォーマットに従って前記組織に対するアクセスポリシを設定するステップであって、前記アクセスポリシは、前記レンダリング装置のリソース及び前記所有権を有するデータへのアクセスを制御するためのアクセスパラメータを有する当該ステップと、
前記アクセスポリシを順守する少なくとも1つの組織のアプリケーションを提供するステップと、
前記アクセスポリシに従って前記レンダリング装置の前記リソースにアクセスしながら前記組織のアプリケーションを実行するステップと、
前記組織のアプリケーションが前記レンダリング装置の前記リソースへアクセスすることを前記アクセスポリシと比べて制限するためのユーザアクセスポリシを維持するステップと
を有する方法。 - 前記組織のアプリケーションが前記組織の前記アクセスポリシに従って前記リソースにアクセスすることを選択的に許可する当該組織に対する信用データに基づいた前記ユーザアクセスポリシを調整するステップを更に有する請求項1記載の方法。
- 前記レンダリング装置の前記リソースにアクセスしながら前記組織のアプリケーションを実行する際、当該アクセスが、前記ユーザアクセスポリシに従って制限される、請求項1又は2記載の方法。
- 前記アプリケーションのシグネチャが提供され、当該シグネチャは、前記組織の秘密鍵を用いて前記アプリケーションのハッシュを暗号化することにより得られる、請求項1、2又は3記載の方法。
- 前記アプリケーションのシグネチャが提供され、当該シグネチャは、Java(登録商標)コードの作成者の秘密鍵を用いて前記アプリケーションのハッシュを暗号化することにより得られ、
前記作成者の証明書が更に提供され、前記作成者の証明書は、前記作成者の関連する公開鍵を含み、
前記作成者の証明書のシグネチャが更に提供され、当該シグネチャは、前記組織の秘密鍵を用いて暗号化される、前記作成者の証明書のハッシュとして得られる、請求項1、2又は3記載の方法。 - 組織の証明書が更に提供され、前記組織の証明書は、前記組織の関連する公開鍵を含み、
前記組織の証明書のシグネチャが更に提供され、当該シグネチャは、再生機が公開鍵を持つ証明機関により署名される、前記組織の証明書のハッシュとして得られる、請求項4又は5記載の方法。 - 前記組織のアプリケーションは、前記組織の前記アクセスポリシの前記アクセスパラメータと比較するための許可リクエストファイルを持つ、請求項1乃至6の何れか一項記載の方法。
- コンテンツ配信システムにおいて用いる所有権を有するデータをレンダリングする装置であって、前記システムは、
前記所有権を有するデータを提供する少なくとも1つの組織と、
前記所有権を有するデータを操作する少なくとも1つのアプリケーションと、
を有し、
前記システムは、
予め定義されたデータアクセスフォーマットに従って前記組織に対するアクセスポリシを設定するように構成され、前記アクセスポリシは、当該装置のリソース及び前記所有権を有するデータへのアクセスを制御するためのアクセスパラメータを有し、
前記システムは、
前記アクセスポリシを順守する少なくとも1つの組織のアプリケーションを提供するように構成され、
当該装置は、
前記所有権を有するデータをレンダリングするためのメディア信号を生成するレンダリング手段と、
前記アクセスポリシに従って当該装置の前記リソースにアクセスしながら前記組織のアプリケーションを実行するアクセス制御手段と、
を有し、
前記アクセス制御手段は、前記組織のアプリケーションが当該装置の前記リソースへアクセスすることを前記アクセスポリシと比べて制限するためのユーザアクセスポリシを維持し、前記レンダリング装置の前記リソースにアクセスしながら前記組織のアプリケーションを実行する際、当該アクセスを、前記ユーザアクセスポリシに従って制限するように構成される、装置。 - 前記組織のアプリケーションは許可リクエストファイルを持ち、前記アクセス制御手段は、前記許可リクエストファイルを、前記組織の前記アクセスポリシの前記アクセスパラメータと比較するように構成される、請求項8記載の装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05110841.3 | 2005-11-17 | ||
EP05110841 | 2005-11-17 |
Related Parent Applications (1)
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JP2008540740A Division JP5637660B2 (ja) | 2005-11-17 | 2006-11-06 | アクセス制御を管理するシステム |
Publications (2)
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JP2014211904A true JP2014211904A (ja) | 2014-11-13 |
JP5919334B2 JP5919334B2 (ja) | 2016-05-18 |
Family
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Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008540740A Active JP5637660B2 (ja) | 2005-11-17 | 2006-11-06 | アクセス制御を管理するシステム |
JP2012187539A Pending JP2012252719A (ja) | 2005-11-17 | 2012-08-28 | アクセス制御を管理するシステム |
JP2014139910A Active JP5919334B2 (ja) | 2005-11-17 | 2014-07-07 | アクセス制御を管理するシステム |
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JP2008540740A Active JP5637660B2 (ja) | 2005-11-17 | 2006-11-06 | アクセス制御を管理するシステム |
JP2012187539A Pending JP2012252719A (ja) | 2005-11-17 | 2012-08-28 | アクセス制御を管理するシステム |
Country Status (8)
Country | Link |
---|---|
US (1) | US9202045B2 (ja) |
EP (2) | EP2650749A1 (ja) |
JP (3) | JP5637660B2 (ja) |
KR (1) | KR20080068752A (ja) |
CN (1) | CN101310285B (ja) |
MY (1) | MY153636A (ja) |
TW (1) | TWI439882B (ja) |
WO (1) | WO2007057812A1 (ja) |
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CN101310285B (zh) | 2011-09-07 |
EP1952296A1 (en) | 2008-08-06 |
EP2650749A1 (en) | 2013-10-16 |
JP5637660B2 (ja) | 2014-12-10 |
KR20080068752A (ko) | 2008-07-23 |
US20080282319A1 (en) | 2008-11-13 |
US9202045B2 (en) | 2015-12-01 |
TWI439882B (zh) | 2014-06-01 |
JP5919334B2 (ja) | 2016-05-18 |
JP2009516288A (ja) | 2009-04-16 |
WO2007057812A1 (en) | 2007-05-24 |
MY153636A (en) | 2015-03-13 |
JP2012252719A (ja) | 2012-12-20 |
CN101310285A (zh) | 2008-11-19 |
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