DE602004029555D1 - Inhaltsschutzsystem, endgerät, endgerätmethode und speichermedium - Google Patents

Inhaltsschutzsystem, endgerät, endgerätmethode und speichermedium

Info

Publication number
DE602004029555D1
DE602004029555D1 DE602004029555T DE602004029555T DE602004029555D1 DE 602004029555 D1 DE602004029555 D1 DE 602004029555D1 DE 602004029555 T DE602004029555 T DE 602004029555T DE 602004029555 T DE602004029555 T DE 602004029555T DE 602004029555 D1 DE602004029555 D1 DE 602004029555D1
Authority
DE
Germany
Prior art keywords
storage medium
end unit
container system
terminal method
terminal
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
DE602004029555T
Other languages
English (en)
Inventor
Toshihisa Nakano
Motoji Ohmori
Natsume Matsuzaki
Makoto Tatebayashi
Naoki Yamamoto
Hideshi Ishihara
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.)
Panasonic Corp
Original Assignee
Panasonic 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 Panasonic Corp filed Critical Panasonic Corp
Publication of DE602004029555D1 publication Critical patent/DE602004029555D1/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
    • H04L63/06—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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • 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
    • 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)
    • H04L9/0822—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) using key encryption key
    • 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
    • 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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • 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
    • H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
    • H04L2463/101—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying security measures for digital rights management
    • 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
DE602004029555T 2003-01-15 2004-01-13 Inhaltsschutzsystem, endgerät, endgerätmethode und speichermedium Expired - Lifetime DE602004029555D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2003007349 2003-01-15
JP2003101455 2003-04-04
PCT/JP2004/000155 WO2004064313A1 (en) 2003-01-15 2004-01-13 Content protection system, key data generation apparatus, and terminal appparatus

Publications (1)

Publication Number Publication Date
DE602004029555D1 true DE602004029555D1 (de) 2010-11-25

Family

ID=32716403

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004029555T Expired - Lifetime DE602004029555D1 (de) 2003-01-15 2004-01-13 Inhaltsschutzsystem, endgerät, endgerätmethode und speichermedium

Country Status (9)

Country Link
US (2) US7386126B2 (de)
EP (1) EP1593229B1 (de)
JP (1) JP4574175B2 (de)
KR (1) KR101019321B1 (de)
BR (1) BRPI0406777B1 (de)
DE (1) DE602004029555D1 (de)
MX (1) MXPA05007498A (de)
RU (1) RU2369024C2 (de)
WO (1) WO2004064313A1 (de)

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JP4783023B2 (ja) * 2005-01-18 2011-09-28 パナソニック株式会社 記録媒体、再生装置、及びコンテンツ再生方法
KR100717005B1 (ko) 2005-04-06 2007-05-10 삼성전자주식회사 폐기 키를 결정하는 방법 및 장치와 이것을 이용하여복호화하는 방법 및 장치
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JP2007013440A (ja) 2005-06-29 2007-01-18 Toshiba Corp メディア鍵生成方法、メディア鍵生成装置、再生装置、及び記録再生装置
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US7831043B2 (en) * 2006-08-27 2010-11-09 International Business Machines Corporation System and method for cryptographically authenticating data items
US20080226078A1 (en) * 2007-03-12 2008-09-18 Microsoft Corporation Enabling recording and copying data
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US9729316B2 (en) * 2008-02-27 2017-08-08 International Business Machines Corporation Unified broadcast encryption system
US9154364B1 (en) * 2009-04-25 2015-10-06 Dasient, Inc. Monitoring for problems and detecting malware
US8516590B1 (en) 2009-04-25 2013-08-20 Dasient, Inc. Malicious advertisement detection and remediation
US8555391B1 (en) 2009-04-25 2013-10-08 Dasient, Inc. Adaptive scanning
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Also Published As

Publication number Publication date
US7386126B2 (en) 2008-06-10
WO2004064313A1 (en) 2004-07-29
US20040156509A1 (en) 2004-08-12
RU2005125741A (ru) 2006-01-10
KR20050091763A (ko) 2005-09-15
US8144869B2 (en) 2012-03-27
RU2369024C2 (ru) 2009-09-27
MXPA05007498A (es) 2005-09-21
KR101019321B1 (ko) 2011-03-07
US20080205652A1 (en) 2008-08-28
BRPI0406777A (pt) 2006-01-17
JP4574175B2 (ja) 2010-11-04
BRPI0406777B1 (pt) 2017-12-26
EP1593229B1 (de) 2010-10-13
JP2004320719A (ja) 2004-11-11
EP1593229A1 (de) 2005-11-09

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