JP5747758B2 - 情報処理装置、および情報処理方法、並びにプログラム - Google Patents

情報処理装置、および情報処理方法、並びにプログラム Download PDF

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Publication number
JP5747758B2
JP5747758B2 JP2011202186A JP2011202186A JP5747758B2 JP 5747758 B2 JP5747758 B2 JP 5747758B2 JP 2011202186 A JP2011202186 A JP 2011202186A JP 2011202186 A JP2011202186 A JP 2011202186A JP 5747758 B2 JP5747758 B2 JP 5747758B2
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JP
Japan
Prior art keywords
content
information
encryption key
storage block
block
Prior art date
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Expired - Fee Related
Application number
JP2011202186A
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English (en)
Japanese (ja)
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JP2013065089A5 (enExample
JP2013065089A (ja
Inventor
久野　浩
浩 久野
義行 小林
義行 小林
隆道 林
隆道 林
克美 村松
克美 村松
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Sony Corp
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Sony Corp
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Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP2011202186A priority Critical patent/JP5747758B2/ja
Priority to EP12180770.5A priority patent/EP2571025B1/en
Priority to US13/593,824 priority patent/US9053739B2/en
Priority to CN2012103288223A priority patent/CN102999445A/zh
Publication of JP2013065089A publication Critical patent/JP2013065089A/ja
Publication of JP2013065089A5 publication Critical patent/JP2013065089A5/ja
Application granted granted Critical
Publication of JP5747758B2 publication Critical patent/JP5747758B2/ja
Expired - Fee Related legal-status Critical Current
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Classifications

    • 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 OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory
    • G06F12/1416—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights
    • 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]
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    • 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
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    • G11B20/00217—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 the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00253—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 the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
    • G11B20/00297—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 the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in a management area, e.g. the video manager [VMG] of a DVD
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    • G11B20/00485—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 characterised by a specific kind of data which is encrypted and recorded on and/or reproduced from the record carrier
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    • H—ELECTRICITY
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    • 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
    • H04L63/0435—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 wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption
    • 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
    • H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
    • 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]
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    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
    • H04N21/4184—External card to be used in combination with the client device, e.g. for conditional access providing storage capabilities, e.g. memory stick
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04N21/432—Content retrieval operation from a local storage medium, e.g. hard-disk
    • H04N21/4325—Content retrieval operation from a local storage medium, e.g. hard-disk by playing back content from the storage medium
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    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
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    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
    • H—ELECTRICITY
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    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management e.g. creating a master electronic programme guide from data received from the Internet and a Head-end or controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
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    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
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    • H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Computing Systems (AREA)
  • Technology Law (AREA)
  • Storage Device Security (AREA)
  • Television Signal Processing For Recording (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
JP2011202186A 2011-09-15 2011-09-15 情報処理装置、および情報処理方法、並びにプログラム Expired - Fee Related JP5747758B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2011202186A JP5747758B2 (ja) 2011-09-15 2011-09-15 情報処理装置、および情報処理方法、並びにプログラム
EP12180770.5A EP2571025B1 (en) 2011-09-15 2012-08-17 Memory card with protected network access to usage rights rules via unprotected pointers
US13/593,824 US9053739B2 (en) 2011-09-15 2012-08-24 Information processing apparatus, information processing method and program
CN2012103288223A CN102999445A (zh) 2011-09-15 2012-09-07 信息处理设备、信息处理方法和程序

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011202186A JP5747758B2 (ja) 2011-09-15 2011-09-15 情報処理装置、および情報処理方法、並びにプログラム

Publications (3)

Publication Number Publication Date
JP2013065089A JP2013065089A (ja) 2013-04-11
JP2013065089A5 JP2013065089A5 (enExample) 2014-09-25
JP5747758B2 true JP5747758B2 (ja) 2015-07-15

Family

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JP2011202186A Expired - Fee Related JP5747758B2 (ja) 2011-09-15 2011-09-15 情報処理装置、および情報処理方法、並びにプログラム

Country Status (4)

Country Link
US (1) US9053739B2 (enExample)
EP (1) EP2571025B1 (enExample)
JP (1) JP5747758B2 (enExample)
CN (1) CN102999445A (enExample)

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JP2015207152A (ja) 2014-04-21 2015-11-19 アルパイン株式会社 アプリケーションの有効期限認証システム、有効期限認証装置および有効期限認証方法
CN104978502A (zh) * 2015-07-10 2015-10-14 上海斐讯数据通信技术有限公司 一种智能终端本地文件的加密系统及方法
CN106469124A (zh) * 2015-08-20 2017-03-01 深圳市中兴微电子技术有限公司 一种存储器访问控制方法和装置
CN106961435B (zh) * 2017-03-22 2019-12-13 北京深思数盾科技股份有限公司 一种访问保护方法和系统
CN113010817B (zh) * 2019-12-18 2024-05-10 深圳市雅阅科技有限公司 内容有效期的调整方法、装置、服务器及存储介质

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