BRPI1013381A2 - método de gerenciamento de informação de chave, método de transmissão de conteúdo, aparelho de gerenciamento de informação de chave, aparelho de gerenciamento de licença, sistema de transmissão de conteúdo, e aparelho de terminal - Google Patents

método de gerenciamento de informação de chave, método de transmissão de conteúdo, aparelho de gerenciamento de informação de chave, aparelho de gerenciamento de licença, sistema de transmissão de conteúdo, e aparelho de terminal

Info

Publication number
BRPI1013381A2
BRPI1013381A2 BRPI1013381A BRPI1013381A BRPI1013381A2 BR PI1013381 A2 BRPI1013381 A2 BR PI1013381A2 BR PI1013381 A BRPI1013381 A BR PI1013381A BR PI1013381 A BRPI1013381 A BR PI1013381A BR PI1013381 A2 BRPI1013381 A2 BR PI1013381A2
Authority
BR
Brazil
Prior art keywords
appliance
key information
content transmission
information management
terminal
Prior art date
Application number
BRPI1013381A
Other languages
English (en)
Inventor
Koji Ishii
Motoyuki Uchida
Toshio Kaneda
Original Assignee
Ntt Docomo Inc
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 Ntt Docomo Inc filed Critical Ntt Docomo Inc
Publication of BRPI1013381A2 publication Critical patent/BRPI1013381A2/pt

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
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26606—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
    • 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
    • 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]
    • 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
    • H04L9/085—Secret sharing or secret splitting, e.g. threshold schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • 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
    • H04L2209/601—Broadcast encryption
BRPI1013381A 2009-03-30 2010-03-11 método de gerenciamento de informação de chave, método de transmissão de conteúdo, aparelho de gerenciamento de informação de chave, aparelho de gerenciamento de licença, sistema de transmissão de conteúdo, e aparelho de terminal BRPI1013381A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009081793A JP5255499B2 (ja) 2009-03-30 2009-03-30 鍵情報管理方法、コンテンツ送信方法、鍵情報管理装置、ライセンス管理装置、コンテンツ送信システム、及び端末装置
PCT/JP2010/054125 WO2010116845A1 (ja) 2009-03-30 2010-03-11 鍵情報管理方法、コンテンツ送信方法、鍵情報管理装置、ライセンス管理装置、コンテンツ送信システム、及び端末装置

Publications (1)

Publication Number Publication Date
BRPI1013381A2 true BRPI1013381A2 (pt) 2016-03-29

Family

ID=42936132

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI1013381A BRPI1013381A2 (pt) 2009-03-30 2010-03-11 método de gerenciamento de informação de chave, método de transmissão de conteúdo, aparelho de gerenciamento de informação de chave, aparelho de gerenciamento de licença, sistema de transmissão de conteúdo, e aparelho de terminal

Country Status (7)

Country Link
US (1) US20120076300A1 (pt)
JP (1) JP5255499B2 (pt)
KR (1) KR20110132422A (pt)
CN (1) CN102369686A (pt)
BR (1) BRPI1013381A2 (pt)
PE (1) PE20120883A1 (pt)
WO (1) WO2010116845A1 (pt)

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US9602480B2 (en) * 2012-10-26 2017-03-21 Nokia Technologies Oy Methods and apparatus for data access control
EP3207659B1 (en) * 2014-10-15 2021-03-10 Verimatrix, Inc. Securing communication in a playback device with a control module using a key contribution
WO2016115663A1 (en) 2015-01-19 2016-07-28 Nokia Technologies Oy Method and apparatus for heterogeneous data storage management in cloud computing
US10027715B2 (en) 2015-06-03 2018-07-17 Samsung Electronics Co., Ltd. Electronic device and method for encrypting content
CN106599698B (zh) * 2015-10-19 2019-09-20 腾讯科技（深圳）有限公司 一种加密图片、解密图片的方法和装置
CN108260125B (zh) * 2018-01-19 2020-09-18 北京工业大学 一种基于d2d通信的内容分发应用的密钥分发方法
US11025413B2 (en) 2018-09-04 2021-06-01 International Business Machines Corporation Securing a storage network using key server authentication
US11088829B2 (en) 2018-09-04 2021-08-10 International Business Machines Corporation Securing a path at a node
US11038671B2 (en) 2018-09-04 2021-06-15 International Business Machines Corporation Shared key processing by a storage device to secure links
US11038698B2 (en) 2018-09-04 2021-06-15 International Business Machines Corporation Securing a path at a selected node

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JPS60183842A (ja) * 1984-03-02 1985-09-19 Toshiba Corp 伝送方式
US4780905A (en) * 1984-11-26 1988-10-25 Nightwatch, Inc. Computer data encryption system
US5764772A (en) * 1995-12-15 1998-06-09 Lotus Development Coporation Differential work factor cryptography method and system
JPH10336128A (ja) * 1997-05-29 1998-12-18 Mitsubishi Electric Corp ディジタル放送のスクランブルシステム
GB2342022B (en) * 1997-07-28 2002-12-18 Director Government Comm Headq Split-key cryptographic system and method
US6185685B1 (en) * 1997-12-11 2001-02-06 International Business Machines Corporation Security method and system for persistent storage and communications on computer network systems and computer network systems employing the same
US7095852B2 (en) * 1998-02-13 2006-08-22 Tecsec, Inc. Cryptographic key split binder for use with tagged data elements
JPH11298470A (ja) * 1998-04-16 1999-10-29 Hitachi Ltd 鍵の配布方法およびシステム
JP3565715B2 (ja) * 1998-07-02 2004-09-15 松下電器産業株式会社 放送システムと放送送受信装置
EP1075108A1 (en) * 1999-07-23 2001-02-07 BRITISH TELECOMMUNICATIONS public limited company Cryptographic data distribution
JP2002261746A (ja) * 2000-12-28 2002-09-13 Sony Corp 配信方法及び配信システム
DE10129285C2 (de) * 2001-06-18 2003-01-09 Hans-Joachim Mueschenborn Verschlüsselungsverfahren mit beliebig wählbaren Einmalschlüsseln
JP3841337B2 (ja) * 2001-10-03 2006-11-01 日本放送協会 コンテンツ送信装置、コンテンツ受信装置およびコンテンツ送信プログラム、コンテンツ受信プログラム
JP2003152698A (ja) * 2001-11-15 2003-05-23 Nippon Hoso Kyokai <Nhk> コンテンツ利用制御送信方法、コンテンツ利用制御受信方法およびコンテンツ利用制御送信装置、コンテンツ利用制御受信装置ならびにコンテンツ利用制御送信プログラム、コンテンツ利用制御受信プログラム
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Also Published As

Publication number Publication date
JP2010239174A (ja) 2010-10-21
KR20110132422A (ko) 2011-12-07
US20120076300A1 (en) 2012-03-29
WO2010116845A1 (ja) 2010-10-14
CN102369686A (zh) 2012-03-07
JP5255499B2 (ja) 2013-08-07
PE20120883A1 (es) 2012-07-28

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Legal Events

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B08F Application fees: application dismissed [chapter 8.6 patent gazette]

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B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2367 DE 17-05-2016 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.