JP2006279644A - 暗号化システム、暗号化装置、復号化装置、暗号化・復号化方法、暗号化方法および復号化方法 - Google Patents

暗号化システム、暗号化装置、復号化装置、暗号化・復号化方法、暗号化方法および復号化方法 Download PDF

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Publication number
JP2006279644A
JP2006279644A JP2005096841A JP2005096841A JP2006279644A JP 2006279644 A JP2006279644 A JP 2006279644A JP 2005096841 A JP2005096841 A JP 2005096841A JP 2005096841 A JP2005096841 A JP 2005096841A JP 2006279644 A JP2006279644 A JP 2006279644A
Authority
JP
Japan
Prior art keywords
data
encryption
frame
unit
chain
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.)
Pending
Application number
JP2005096841A
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English (en)
Japanese (ja)
Other versions
JP2006279644A5 (enExample
Inventor
Satoru Takahashi
哲 高橋
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP2005096841A priority Critical patent/JP2006279644A/ja
Priority to EP05255048A priority patent/EP1708484A3/en
Priority to US11/206,187 priority patent/US20060233366A1/en
Publication of JP2006279644A publication Critical patent/JP2006279644A/ja
Publication of JP2006279644A5 publication Critical patent/JP2006279644A5/ja
Pending legal-status Critical Current

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Classifications

    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42653—Internal components of the client ; Characteristics thereof for processing graphics
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/4143—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a Personal Computer [PC]
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4367—Establishing a secure communication between the client and a peripheral device or smart card
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • 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
    • H04N21/4408—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 encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • 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
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Graphics (AREA)
  • General Engineering & Computer Science (AREA)
  • Storage Device Security (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
JP2005096841A 2005-03-30 2005-03-30 暗号化システム、暗号化装置、復号化装置、暗号化・復号化方法、暗号化方法および復号化方法 Pending JP2006279644A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2005096841A JP2006279644A (ja) 2005-03-30 2005-03-30 暗号化システム、暗号化装置、復号化装置、暗号化・復号化方法、暗号化方法および復号化方法
EP05255048A EP1708484A3 (en) 2005-03-30 2005-08-16 Encryption system, encryption device and decryption device
US11/206,187 US20060233366A1 (en) 2005-03-30 2005-08-18 Encryption system, encryption device and decryption device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005096841A JP2006279644A (ja) 2005-03-30 2005-03-30 暗号化システム、暗号化装置、復号化装置、暗号化・復号化方法、暗号化方法および復号化方法

Publications (2)

Publication Number Publication Date
JP2006279644A true JP2006279644A (ja) 2006-10-12
JP2006279644A5 JP2006279644A5 (enExample) 2007-11-22

Family

ID=36649550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005096841A Pending JP2006279644A (ja) 2005-03-30 2005-03-30 暗号化システム、暗号化装置、復号化装置、暗号化・復号化方法、暗号化方法および復号化方法

Country Status (3)

Country Link
US (1) US20060233366A1 (enExample)
EP (1) EP1708484A3 (enExample)
JP (1) JP2006279644A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014219548A (ja) * 2013-05-08 2014-11-20 国立大学法人島根大学 暗号処理システム

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8094814B2 (en) * 2005-04-05 2012-01-10 Broadcom Corporation Method and apparatus for using counter-mode encryption to protect image data in frame buffer of a video compression system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2006A (en) * 1841-03-16 Clamp for crimping leather
JPH03123244A (ja) * 1989-10-06 1991-05-27 Matsushita Electric Ind Co Ltd 通信装置
NL9301784A (nl) * 1993-10-14 1995-05-01 Irdeto Bv Systeem voor het versleutelen en ontsleutelen van digitale informatie.
US6061449A (en) * 1997-10-10 2000-05-09 General Instrument Corporation Secure processor with external memory using block chaining and block re-ordering
US7778418B1 (en) * 1998-01-08 2010-08-17 Samsung Electronics Co., Ltd. System and method for copy protection for digital signals
US7058179B1 (en) * 2000-03-29 2006-06-06 Sony Corporation Method and system for a secure high bandwidth bus in a transceiver device
JP2001339732A (ja) 2000-05-26 2001-12-07 Victor Co Of Japan Ltd 動画像符号化復号化装置、及び動画像符号化復号化方法
US7349539B2 (en) * 2001-05-04 2008-03-25 Hewlett-Packard Development Company, L.P. Encoding and encrypting devices for secure scalable data streaming
US7380130B2 (en) * 2001-12-04 2008-05-27 Microsoft Corporation Methods and systems for authentication of components in a graphics system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014219548A (ja) * 2013-05-08 2014-11-20 国立大学法人島根大学 暗号処理システム

Also Published As

Publication number Publication date
EP1708484A2 (en) 2006-10-04
US20060233366A1 (en) 2006-10-19
EP1708484A3 (en) 2006-10-11

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