JP2003519942A - デジタルコンテンツを事前リリースする方法およびその方法と共に使用される暗号化鍵データベース - Google Patents

デジタルコンテンツを事前リリースする方法およびその方法と共に使用される暗号化鍵データベース

Info

Publication number
JP2003519942A
JP2003519942A JP2001547232A JP2001547232A JP2003519942A JP 2003519942 A JP2003519942 A JP 2003519942A JP 2001547232 A JP2001547232 A JP 2001547232A JP 2001547232 A JP2001547232 A JP 2001547232A JP 2003519942 A JP2003519942 A JP 2003519942A
Authority
JP
Japan
Prior art keywords
digital content
encryption key
release time
key
content
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2001547232A
Other languages
English (en)
Japanese (ja)
Other versions
JP2003519942A5 (enExample
Inventor
アブリ ラジャセクハル
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Microsoft Corp
Original Assignee
Microsoft Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Microsoft Corp filed Critical Microsoft Corp
Publication of JP2003519942A publication Critical patent/JP2003519942A/ja
Publication of JP2003519942A5 publication Critical patent/JP2003519942A5/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Technology Law (AREA)
  • Computer Hardware Design (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
JP2001547232A 1999-12-16 2000-12-13 デジタルコンテンツを事前リリースする方法およびその方法と共に使用される暗号化鍵データベース Pending JP2003519942A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US46472499A 1999-12-16 1999-12-16
US09/464,724 1999-12-16
PCT/US2000/042780 WO2001046782A2 (en) 1999-12-16 2000-12-13 Method of pre-releasing encrypted digital data

Publications (2)

Publication Number Publication Date
JP2003519942A true JP2003519942A (ja) 2003-06-24
JP2003519942A5 JP2003519942A5 (enExample) 2008-02-07

Family

ID=23844996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001547232A Pending JP2003519942A (ja) 1999-12-16 2000-12-13 デジタルコンテンツを事前リリースする方法およびその方法と共に使用される暗号化鍵データベース

Country Status (4)

Country Link
EP (1) EP1259865A2 (enExample)
JP (1) JP2003519942A (enExample)
AU (1) AU4717401A (enExample)
WO (1) WO2001046782A2 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006011327A1 (ja) * 2004-07-30 2006-02-02 Kabushiki Kaisha Toshiba 記憶媒体処理方法、記憶媒体処理装置及びプログラム

Families Citing this family (24)

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US6876984B2 (en) * 2001-05-31 2005-04-05 Contentguard Holdings, Inc. Method and apparatus for establishing usage rights for digital content to be created in the future
US7085848B2 (en) 2002-03-15 2006-08-01 Microsoft Corporation Time-window-constrained multicast using connection scheduling
GB0208858D0 (en) * 2002-04-18 2002-05-29 Hewlett Packard Co Method and apparatus for encrypting/decrypting data
CN1745374A (zh) 2002-12-27 2006-03-08 尼尔逊媒介研究股份有限公司 用于对元数据进行译码的方法和装置
US7801820B2 (en) * 2003-01-13 2010-09-21 Sony Corporation Real-time delivery of license for previously stored encrypted content
GB2405297B (en) * 2003-08-20 2006-12-20 Vodafone Plc Data distribution
US7594275B2 (en) 2003-10-14 2009-09-22 Microsoft Corporation Digital rights management system
GB2413863A (en) * 2004-05-08 2005-11-09 Ibm Method and system for distribution of information
JP2006195586A (ja) * 2005-01-11 2006-07-27 Ntt Docomo Inc コンテンツ配信ノード、ネットワーク機器および販売システム
US8341753B2 (en) * 2005-03-10 2012-12-25 Valve Corporation Managing pre-release of a game application over a network
US8225410B2 (en) 2005-07-08 2012-07-17 At&T Intellectual Property I, L. P. Methods, systems, and devices for securing content
DE102005051577B4 (de) * 2005-10-21 2008-04-30 Engel Solutions Ag Verfahren zur Verschlüsselung bzw. Entschlüsselung von Datenpaketen eines Datenstroms sowie Signalfolge und Datenverarbeitungssystem zur Ausführung des Verfahrens
JP4979085B2 (ja) * 2008-02-26 2012-07-18 Ｋｄｄｉ株式会社 時限式暗号化方法および装置、時限式復号方法および装置、ならびに時限式暗号化復号システム
EP2113857A1 (en) * 2008-04-28 2009-11-04 THOMSON Licensing A method for secure content distribution
ITCR20090044A1 (it) * 2009-12-17 2011-06-18 Alessandro Landi Procedimento per la gestione sicura di dati sensibili da mantenere segreti in un intervallo di tempo prefissato.
US9380356B2 (en) 2011-04-12 2016-06-28 The Nielsen Company (Us), Llc Methods and apparatus to generate a tag for media content
US9209978B2 (en) 2012-05-15 2015-12-08 The Nielsen Company (Us), Llc Methods and apparatus to measure exposure to streaming media
US9210208B2 (en) 2011-06-21 2015-12-08 The Nielsen Company (Us), Llc Monitoring streaming media content
MX2014000280A (es) * 2011-06-21 2014-05-28 Nielsen Co Us Llc Metodos y aparatos para medir exposicion a transmision de medios en tiempo real.
EP2831127A4 (en) * 2012-03-30 2015-12-02 Irdeto Bv METHOD AND SYSTEM FOR LOCKING CONTENT
US20150371013A1 (en) * 2012-03-30 2015-12-24 Irdeto Usa, Inc. Method and system for locking content
US9313544B2 (en) 2013-02-14 2016-04-12 The Nielsen Company (Us), Llc Methods and apparatus to measure exposure to streaming media
US9762965B2 (en) 2015-05-29 2017-09-12 The Nielsen Company (Us), Llc Methods and apparatus to measure exposure to streaming media
WO2017083311A1 (en) * 2015-11-09 2017-05-18 Secure Content Storage Association, Llc Timed release of decryption keys for access to distributed encrypted content

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1041933A (ja) * 1996-07-22 1998-02-13 Fuji Xerox Co Ltd 復号装置
US5825876A (en) * 1995-12-04 1998-10-20 Northern Telecom Time based availability to content of a storage medium
US5857020A (en) * 1995-12-04 1999-01-05 Northern Telecom Ltd. Timed availability of secured content provisioned on a storage medium
JPH1127252A (ja) * 1997-07-07 1999-01-29 Hitachi Ltd 鍵管理システム、鍵管理装置、情報暗号化装置、情報復号化装置、およびプログラムを記憶した記憶媒体
JPH11136230A (ja) * 1997-08-22 1999-05-21 Internatl Business Mach Corp <Ibm> 時間制約暗号システム
JPH11296076A (ja) * 1998-03-23 1999-10-29 Internatl Business Mach Corp <Ibm> 小時間鍵生成の方法及びシステム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL110891A (en) * 1993-09-14 1999-03-12 Spyrus System and method for controlling access to data

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5825876A (en) * 1995-12-04 1998-10-20 Northern Telecom Time based availability to content of a storage medium
US5857020A (en) * 1995-12-04 1999-01-05 Northern Telecom Ltd. Timed availability of secured content provisioned on a storage medium
JPH1041933A (ja) * 1996-07-22 1998-02-13 Fuji Xerox Co Ltd 復号装置
JPH1127252A (ja) * 1997-07-07 1999-01-29 Hitachi Ltd 鍵管理システム、鍵管理装置、情報暗号化装置、情報復号化装置、およびプログラムを記憶した記憶媒体
JPH11136230A (ja) * 1997-08-22 1999-05-21 Internatl Business Mach Corp <Ibm> 時間制約暗号システム
JPH11296076A (ja) * 1998-03-23 1999-10-29 Internatl Business Mach Corp <Ibm> 小時間鍵生成の方法及びシステム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006011327A1 (ja) * 2004-07-30 2006-02-02 Kabushiki Kaisha Toshiba 記憶媒体処理方法、記憶媒体処理装置及びプログラム

Also Published As

Publication number Publication date
EP1259865A2 (en) 2002-11-27
WO2001046782A3 (en) 2002-09-12
AU4717401A (en) 2001-07-03
WO2001046782A2 (en) 2001-06-28

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