DE60126540D1 - Verfahren und vorrichtung zur informationsverarbeitung - Google Patents

Verfahren und vorrichtung zur informationsverarbeitung

Info

Publication number
DE60126540D1
DE60126540D1 DE60126540T DE60126540T DE60126540D1 DE 60126540 D1 DE60126540 D1 DE 60126540D1 DE 60126540 T DE60126540 T DE 60126540T DE 60126540 T DE60126540 T DE 60126540T DE 60126540 D1 DE60126540 D1 DE 60126540D1
Authority
DE
Germany
Prior art keywords
ekb
tree
data
encrypted key
key
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
DE60126540T
Other languages
English (en)
Other versions
DE60126540T2 (de
Inventor
Ryuji Ishiguro
Yoshitomo Osawa
Tateo Oishi
Tomoyuki Asano
Atsushi Mitsuzawa
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
Publication of DE60126540D1 publication Critical patent/DE60126540D1/de
Application granted granted Critical
Publication of DE60126540T2 publication Critical patent/DE60126540T2/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
    • 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
    • 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]
    • G06F21/109—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM] by using specially-adapted hardware at the client
    • 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
    • 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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2109—Game systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Technology Law (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • Storage Device Security (AREA)
  • Multi-Process Working Machines And Systems (AREA)
  • Hardware Redundancy (AREA)
  • Debugging And Monitoring (AREA)
  • General Factory Administration (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Facsimile Transmission Control (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
DE60126540T 2000-04-06 2001-04-04 Verfahren und vorrichtung zur informationsverarbeitung Expired - Lifetime DE60126540T2 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP2000105329 2000-04-06
JP2000105329 2000-04-06
JP2000179692 2000-06-15
JP2000179692 2000-06-15
JP2000317803 2000-10-18
JP2000317803A JP4023083B2 (ja) 2000-04-06 2000-10-18 情報処理システム、情報処理方法、および情報記録媒体、並びにプログラム提供媒体
PCT/JP2001/002929 WO2001078299A1 (en) 2000-04-06 2001-04-04 Information processing system and method

Publications (2)

Publication Number Publication Date
DE60126540D1 true DE60126540D1 (de) 2007-03-29
DE60126540T2 DE60126540T2 (de) 2007-11-22

Family

ID=27343012

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60126540T Expired - Lifetime DE60126540T2 (de) 2000-04-06 2001-04-04 Verfahren und vorrichtung zur informationsverarbeitung

Country Status (13)

Country Link
US (1) US7707410B2 (de)
EP (1) EP1185021B1 (de)
JP (1) JP4023083B2 (de)
KR (1) KR100777906B1 (de)
CN (1) CN100376091C (de)
AT (1) ATE354223T1 (de)
CA (1) CA2372510A1 (de)
DE (1) DE60126540T2 (de)
DK (1) DK1185021T3 (de)
ES (1) ES2277919T3 (de)
MY (1) MY135432A (de)
TW (1) TWI228901B (de)
WO (1) WO2001078299A1 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0587850U (ja) * 1992-04-30 1993-11-26 多治見無線電機株式会社 多芯ケーブル用コネクタ
US9520993B2 (en) 2001-01-26 2016-12-13 International Business Machines Corporation Renewable traitor tracing
US7039803B2 (en) 2001-01-26 2006-05-02 International Business Machines Corporation Method for broadcast encryption and key revocation of stateless receivers
JP3957978B2 (ja) 2001-02-09 2007-08-15 株式会社東芝 暗号化システム、データ利用デバイス、及び、暗号化システムのデータ再生制御方法
WO2003036859A2 (en) * 2001-10-26 2003-05-01 Matsushita Electric Industrial Co., Ltd. Key management apparatus
AU2002334425A1 (en) * 2001-10-26 2003-05-06 Matsushita Electric Industrial Co., Ltd. Digital work protection system, key management apparatus, and user apparatus
JP2003229843A (ja) 2002-01-31 2003-08-15 Sony Corp ストリーミングシステム及びストリーミング方法、クライアント端末及びコンテンツデータ復号方法、ストリームサーバ及びストリーム配信方法、オーサリング装置及びオーサリング方法、並びにプログラム及び記録媒体
US7092527B2 (en) 2002-04-18 2006-08-15 International Business Machines Corporation Method, system and program product for managing a size of a key management block during content distribution
US7437664B2 (en) * 2002-06-18 2008-10-14 Microsoft Corporation Comparing hierarchically-structured documents
US7317799B2 (en) * 2002-07-19 2008-01-08 Vadium Technology, Inc. Cryptographic key distribution using key folding
KR100924773B1 (ko) 2002-09-16 2009-11-03 삼성전자주식회사 메타데이터 암호화 및 복호화 방법과 암호화된 메타데이터관리 방법 및 그 시스템
US8261063B2 (en) * 2003-02-03 2012-09-04 Hewlett-Packard Development Company, L.P. Method and apparatus for managing a hierarchy of nodes
CN1788453B (zh) * 2003-03-11 2012-03-28 松下电器产业株式会社 内容记录/再现系统、配送设备、再现设备以及记录设备
KR20050078773A (ko) * 2004-02-02 2005-08-08 삼성전자주식회사 브로드캐스트 암호화 방법을 위한 사용자 키 할당 방법
KR101282972B1 (ko) 2004-03-22 2013-07-08 삼성전자주식회사 디바이스와 휴대형 저장장치와의 상호인증
EP1733504A4 (de) 2004-03-22 2011-05-25 Samsung Electronics Co Ltd Authentifikation zwischen einrichtung und tragbarer speicherung
JP4583069B2 (ja) * 2004-05-18 2010-11-17 パイオニア株式会社 鍵管理システム、及び再生装置
KR100970391B1 (ko) * 2005-04-19 2010-07-15 삼성전자주식회사 브로드 캐스트 암호화 시스템에서의 태그 형성방법
CN100418090C (zh) * 2005-08-31 2008-09-10 国际商业机器公司 一种存储数据的方法
JP4837463B2 (ja) * 2006-07-11 2011-12-14 Ｋｄｄｉ株式会社 鍵管理システム、鍵管理方法およびプログラム
US9071589B1 (en) * 2008-04-02 2015-06-30 Cisco Technology, Inc. Encryption key management for storage area network devices
KR101252549B1 (ko) * 2008-11-21 2013-04-08 한국전자통신연구원 보안 도메인 환경에서의 암/복호화 프로그램 및 대칭키의 안전 배포 방법 및 이를 위한 데이터 분할 및 주입 장치
US8165041B2 (en) * 2008-12-15 2012-04-24 Microsoft Corporation Peer to multi-peer routing
WO2013134290A2 (en) * 2012-03-05 2013-09-12 R. R. Donnelley & Sons Company Digital content delivery
JP5906146B2 (ja) * 2012-06-29 2016-04-20 株式会社沖データ 画像データ処理装置及びプログラム
US11748504B2 (en) * 2018-07-12 2023-09-05 Seclous Gmbh Method for setting up a secure hierarchical referencing system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19511298B4 (de) * 1995-03-28 2005-08-18 Deutsche Telekom Ag Verfahren zur Erteilung und zum Entzug der Berechtigung zum Empfang von Rundfunksendungen und Decoder
US5748736A (en) * 1996-06-14 1998-05-05 Mittra; Suvo System and method for secure group communications via multicast or broadcast
JPH1040255A (ja) 1996-07-29 1998-02-13 Nec Software Ltd ハッシュ表管理装置
JPH11187013A (ja) * 1997-12-24 1999-07-09 Ibm Japan Ltd 暗号鍵配信システム
US6049878A (en) * 1998-01-20 2000-04-11 Sun Microsystems, Inc. Efficient, secure multicasting with global knowledge
US6118873A (en) 1998-04-24 2000-09-12 International Business Machines Corporation System for encrypting broadcast programs in the presence of compromised receiver devices
US6240188B1 (en) * 1999-07-06 2001-05-29 Matsushita Electric Industrial Co., Ltd. Distributed group key management scheme for secure many-to-many communication
US6263435B1 (en) * 1999-07-06 2001-07-17 Matsushita Electric Industrial Co., Ltd. Dual encryption protocol for scalable secure group communication

Also Published As

Publication number Publication date
CN100376091C (zh) 2008-03-19
US7707410B2 (en) 2010-04-27
JP4023083B2 (ja) 2007-12-19
ATE354223T1 (de) 2007-03-15
EP1185021B1 (de) 2007-02-14
CA2372510A1 (en) 2001-10-18
EP1185021A1 (de) 2002-03-06
KR20020026285A (ko) 2002-04-09
DE60126540T2 (de) 2007-11-22
WO2001078299A1 (en) 2001-10-18
ES2277919T3 (es) 2007-08-01
MY135432A (en) 2008-04-30
DK1185021T3 (da) 2007-06-11
KR100777906B1 (ko) 2007-11-20
EP1185021A4 (de) 2003-05-07
CN1383646A (zh) 2002-12-04
JP2002077131A (ja) 2002-03-15
US20060159272A1 (en) 2006-07-20
TWI228901B (en) 2005-03-01

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Legal Events

Date Code Title Description
8381 Inventor (new situation)

Inventor name: ISHIGURO, RYUJI, TOKYO, JP

Inventor name: OSAWA, YOSHITOMO, TOKYO, JP

Inventor name: OISHI, TATEO, TOKYO, JP

Inventor name: ASANO, TOMOYUKI, TOKYO, JP

Inventor name: MITSUZAWA, ATSUSHI, TOKYO, JP

8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)