DE60137270D1 - Hierarchisches Data Content Baumverteilung Informationsystem und -Verfahren - Google Patents

Hierarchisches Data Content Baumverteilung Informationsystem und -Verfahren

Info

Publication number
DE60137270D1
DE60137270D1 DE60137270T DE60137270T DE60137270D1 DE 60137270 D1 DE60137270 D1 DE 60137270D1 DE 60137270 T DE60137270 T DE 60137270T DE 60137270 T DE60137270 T DE 60137270T DE 60137270 D1 DE60137270 D1 DE 60137270D1
Authority
DE
Germany
Prior art keywords
ekb
key
tree
category
produced
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.)
Expired - Lifetime
Application number
DE60137270T
Other languages
English (en)
Inventor
Tomoyuki Asano
Yoshitomo Osawa
Tateo Oishi
Ryuji Ishiguro
Ryuta Taki
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE60137270D1 publication Critical patent/DE60137270D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • 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
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/107—License processing; Key processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/062—Network architectures or network communication protocols for network security for supporting key management in a packet data network for key distribution, e.g. centrally by trusted party
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/083—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
    • H04L9/0833—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] involving conference or group key
    • H04L9/0836—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP] involving conference or group key using tree structure or hierarchical structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00855—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a step of exchanging information with a remote server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60—Digital content management, e.g. content distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0869—Network architectures or network communication protocols for network security for authentication of entities for achieving mutual authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
    • H04L63/104—Grouping of entities

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • Technology Law (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Storage Device Security (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Multi-Process Working Machines And Systems (AREA)
  • Debugging And Monitoring (AREA)
  • Hardware Redundancy (AREA)
  • Circuits Of Receivers In General (AREA)
  • Information Transfer Between Computers (AREA)
  • Communication Control (AREA)
DE60137270T 2000-12-26 2001-12-21 Hierarchisches Data Content Baumverteilung Informationsystem und -Verfahren Expired - Lifetime DE60137270D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000396098A JP4710132B2 (ja) 2000-12-26 2000-12-26 情報処理システム、および情報処理方法、並びにプログラム記録媒体

Publications (1)

Publication Number Publication Date
DE60137270D1 true DE60137270D1 (de) 2009-02-12

Family

ID=18861456

Family Applications (2)

Application Number Title Priority Date Filing Date
DE60137270T Expired - Lifetime DE60137270D1 (de) 2000-12-26 2001-12-21 Hierarchisches Data Content Baumverteilung Informationsystem und -Verfahren
DE60127096T Expired - Lifetime DE60127096T2 (de) 2000-12-26 2001-12-21 Vorrichtung und verfahren zur informationsverarbeitung

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE60127096T Expired - Lifetime DE60127096T2 (de) 2000-12-26 2001-12-21 Vorrichtung und verfahren zur informationsverarbeitung

Country Status (9)

Country Link
US (2) US7167564B2 (de)
EP (2) EP1253739B1 (de)
JP (1) JP4710132B2 (de)
KR (1) KR100852305B1 (de)
CN (1) CN1211975C (de)
AT (2) ATE419691T1 (de)
DE (2) DE60137270D1 (de)
HK (1) HK1058269A1 (de)
WO (1) WO2002052781A1 (de)

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JP4581246B2 (ja) * 2000-12-26 2010-11-17 ソニー株式会社 情報処理システム、および情報処理方法、並びにプログラム記録媒体
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US7340603B2 (en) * 2002-01-30 2008-03-04 Sony Corporation Efficient revocation of receivers
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KR100924773B1 (ko) * 2002-09-16 2009-11-03 삼성전자주식회사 메타데이터 암호화 및 복호화 방법과 암호화된 메타데이터관리 방법 및 그 시스템
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US20050049886A1 (en) * 2003-08-28 2005-03-03 Sbc Knowledge Ventures, L.P. System and method for managing digital rights and content assets
US7467415B2 (en) * 2003-09-30 2008-12-16 Novell, Inc. Distributed dynamic security for document collaboration
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US7299493B1 (en) * 2003-09-30 2007-11-20 Novell, Inc. Techniques for dynamically establishing and managing authentication and trust relationships
US7412603B2 (en) * 2003-12-05 2008-08-12 Microsoft Corporation Methods and systems for enabling secure storage of sensitive data
US8037314B2 (en) * 2003-12-22 2011-10-11 Intel Corporation Replacing blinded authentication authority
US7802095B2 (en) * 2004-02-03 2010-09-21 Music Public Broadcasting, Inc. Method and system for preventing unauthorized recording of media content on a Macintosh operating system
JP4725070B2 (ja) * 2004-10-13 2011-07-13 パナソニック株式会社 正規コンテンツ確認方法、コンテンツ送受信システム、送信機、および受信機
JP3814620B2 (ja) * 2004-10-15 2006-08-30 株式会社東芝 情報処理装置および情報処理方法
US7386128B2 (en) * 2004-12-29 2008-06-10 General Instrument Corporation Conditional access system providing access to multiple programs or services
US7971070B2 (en) * 2005-01-11 2011-06-28 International Business Machines Corporation Read/write media key block
KR20060131536A (ko) 2005-06-16 2006-12-20 삼성전자주식회사 ＢＥ 시스템에서의 홈 디바이스의 통합적 키(ｋｅｙ) 관리방법 및 그 시스템
JP4596256B2 (ja) * 2005-08-02 2010-12-08 ソニー株式会社 送受信システムおよび方法、送信装置および方法、受信装置および方法、並びにプログラム
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Also Published As

Publication number Publication date
DE60127096T2 (de) 2007-11-08
US7738662B2 (en) 2010-06-15
US20030142824A1 (en) 2003-07-31
KR20030019315A (ko) 2003-03-06
US7167564B2 (en) 2007-01-23
EP1253739B1 (de) 2007-03-07
HK1058269A1 (en) 2004-05-07
EP1253739A4 (de) 2005-02-02
JP2002198952A (ja) 2002-07-12
JP4710132B2 (ja) 2011-06-29
WO2002052781A1 (fr) 2002-07-04
CN1426644A (zh) 2003-06-25
KR100852305B1 (ko) 2008-08-18
ATE356484T1 (de) 2007-03-15
ATE419691T1 (de) 2009-01-15
EP1253739A1 (de) 2002-10-30
EP1710947B1 (de) 2008-12-31
EP1710947A1 (de) 2006-10-11
US20070098177A1 (en) 2007-05-03
DE60127096D1 (de) 2007-04-19
CN1211975C (zh) 2005-07-20

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