ATE347762T1 - Verfahren und vorrichtung zur verschlüsselung und entschlüsselung eines datenstromes - Google Patents

Verfahren und vorrichtung zur verschlüsselung und entschlüsselung eines datenstromes

Info

Publication number
ATE347762T1
ATE347762T1 AT04101698T AT04101698T ATE347762T1 AT E347762 T1 ATE347762 T1 AT E347762T1 AT 04101698 T AT04101698 T AT 04101698T AT 04101698 T AT04101698 T AT 04101698T AT E347762 T1 ATE347762 T1 AT E347762T1
Authority
AT
Austria
Prior art keywords
data stream
encrypting
decrypting
encryption attributes
encrypted
Prior art date
Application number
AT04101698T
Other languages
English (en)
Inventor
Rong Yan
Jian Zhang
Dong Xie
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Application granted granted Critical
Publication of ATE347762T1 publication Critical patent/ATE347762T1/de

Links

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
    • H04N21/43—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
    • H04N21/44055—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 by partially decrypting, e.g. decrypting a video stream that has been partially encrypted
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/70—Media network packetisation
    • 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
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0637—Modes of operation, e.g. cipher block chaining [CBC], electronic codebook [ECB] or Galois/counter mode [GCM]
    • 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
    • H04L9/088—Usage controlling of secret information, e.g. techniques for restricting cryptographic keys to pre-authorized uses, different access levels, validity of crypto-period, different key- or password length, or different strong and weak cryptographic 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
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
    • H04N21/23476—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption by partially encrypting, e.g. encrypting the ending portion of a movie
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Storage Device Security (AREA)
  • Time-Division Multiplex Systems (AREA)
AT04101698T 2003-05-06 2004-04-28 Verfahren und vorrichtung zur verschlüsselung und entschlüsselung eines datenstromes ATE347762T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB03123416XA CN100483992C (zh) 2003-05-06 2003-05-06 数据流的加密、解密方法和装置

Publications (1)

Publication Number Publication Date
ATE347762T1 true ATE347762T1 (de) 2006-12-15

Family

ID=33163878

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04101698T ATE347762T1 (de) 2003-05-06 2004-04-28 Verfahren und vorrichtung zur verschlüsselung und entschlüsselung eines datenstromes

Country Status (6)

Country Link
US (2) US7436955B2 (de)
EP (1) EP1487147B1 (de)
CN (1) CN100483992C (de)
AT (1) ATE347762T1 (de)
DE (1) DE602004003520T2 (de)
ES (1) ES2276222T3 (de)

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US9958228B2 (en) 2013-04-01 2018-05-01 Yardarm Technologies, Inc. Telematics sensors and camera activation in connection with firearm activity
US10390732B2 (en) 2013-08-14 2019-08-27 Digital Ally, Inc. Breath analyzer, system, and computer program for authenticating, preserving, and presenting breath analysis data
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US9253452B2 (en) 2013-08-14 2016-02-02 Digital Ally, Inc. Computer program, method, and system for managing multiple data recording devices
US9159371B2 (en) 2013-08-14 2015-10-13 Digital Ally, Inc. Forensic video recording with presence detection
CN104639500A (zh) * 2013-11-08 2015-05-20 江良洲 双不对称加密提高移动互联网信息传输安全性的方法
WO2016064893A1 (en) 2014-10-20 2016-04-28 Taser International, Inc. Systems and methods for distributed control
WO2016100356A1 (en) 2014-12-15 2016-06-23 Yardarm Technologies, Inc. Camera activation in response to firearm activity
KR101647104B1 (ko) * 2014-12-18 2016-08-10 권영민 하이브리드 전송 프로토콜
CN104581201A (zh) * 2014-12-31 2015-04-29 乐视网信息技术（北京）股份有限公司 一种视频加密方法及装置
US9841259B2 (en) 2015-05-26 2017-12-12 Digital Ally, Inc. Wirelessly conducted electronic weapon
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CN108881291B (zh) * 2018-07-19 2020-12-22 上海海事大学 一种基于分层授权机构的权重属性基加密方法
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Also Published As

Publication number Publication date
EP1487147A3 (de) 2005-09-07
CN100483992C (zh) 2009-04-29
EP1487147B1 (de) 2006-12-06
US8121288B2 (en) 2012-02-21
EP1487147A2 (de) 2004-12-15
US7436955B2 (en) 2008-10-14
US20090034721A1 (en) 2009-02-05
CN1549491A (zh) 2004-11-24
DE602004003520D1 (de) 2007-01-18
DE602004003520T2 (de) 2007-09-27
ES2276222T3 (es) 2007-06-16
US20040223611A1 (en) 2004-11-11

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RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties