CA2728687A1 - Methods and apparatuses for selective data encryption - Google Patents

Methods and apparatuses for selective data encryption Download PDF

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Publication number
CA2728687A1
CA2728687A1 CA2728687A CA2728687A CA2728687A1 CA 2728687 A1 CA2728687 A1 CA 2728687A1 CA 2728687 A CA2728687 A CA 2728687A CA 2728687 A CA2728687 A CA 2728687A CA 2728687 A1 CA2728687 A1 CA 2728687A1
Authority
CA
Canada
Prior art keywords
message
bits
encryption
encrypted
length
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.)
Abandoned
Application number
CA2728687A
Other languages
English (en)
French (fr)
Inventor
Ayoub Massoudi
Frederic Lefebvre
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.)
Thomson Licensing SAS
Original Assignee
Thomson Licensing SAS
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 Thomson Licensing SAS filed Critical Thomson Licensing SAS
Publication of CA2728687A1 publication Critical patent/CA2728687A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/002—Countermeasures against attacks on cryptographic mechanisms
    • 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
    • H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
    • 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
    • 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
    • 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
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/12—Details relating to cryptographic hardware or logic circuitry
    • 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
    • H04L2209/34—Encoding or coding, e.g. Huffman coding or error correction
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Storage Device Security (AREA)
CA2728687A 2008-06-30 2009-06-30 Methods and apparatuses for selective data encryption Abandoned CA2728687A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP08305364.5 2008-06-30
EP08305364A EP2141923A1 (en) 2008-06-30 2008-06-30 Methods and apparatuses for selective data encryption
PCT/EP2009/058161 WO2010000727A1 (en) 2008-06-30 2009-06-30 Methods and apparatuses for selective data encryption

Publications (1)

Publication Number Publication Date
CA2728687A1 true CA2728687A1 (en) 2010-01-07

Family

ID=40566230

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2728687A Abandoned CA2728687A1 (en) 2008-06-30 2009-06-30 Methods and apparatuses for selective data encryption

Country Status (10)

Country Link
US (1) US8625791B2 (enExample)
EP (2) EP2141923A1 (enExample)
JP (1) JP5615273B2 (enExample)
KR (1) KR101578055B1 (enExample)
CN (1) CN102077592A (enExample)
AU (1) AU2009265724B2 (enExample)
CA (1) CA2728687A1 (enExample)
MX (1) MX2010013710A (enExample)
RU (1) RU2505931C2 (enExample)
WO (1) WO2010000727A1 (enExample)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2403244A1 (en) 2010-07-01 2012-01-04 Thomson Licensing Secure encryption method for electronic content distribution
EP2568711A1 (en) 2011-09-12 2013-03-13 Thomson Licensing Methods and devices for selective format-preserving data encryption
EP2611064A1 (en) 2011-12-29 2013-07-03 Thomson Licensing Method for selectively scrambling bit-streams
WO2013114166A1 (en) * 2012-02-01 2013-08-08 Nds Limited Known plaintext attack protection
US9066117B2 (en) * 2012-02-08 2015-06-23 Vixs Systems, Inc Container agnostic encryption device and methods for use therewith
US20130259395A1 (en) * 2012-03-30 2013-10-03 Pascal Massimino System and Method of Manipulating a JPEG Header
DE102013106121A1 (de) * 2013-06-12 2014-12-18 Appbyyou Gmbh Verfahren zur Verschlüsselung von Daten
US9794230B2 (en) * 2013-07-20 2017-10-17 Ittiam Systems (P) Ltd. Method and system for encrypting multimedia streams
RU2666326C2 (ru) * 2014-07-29 2018-09-06 Хуавей Текнолоджиз Ко., Лтд. Устройство и способ шифрования и передачи данных
KR102287946B1 (ko) * 2014-09-05 2021-08-09 삼성전자주식회사 데이터 암호화 방법 및 장치
US9672025B2 (en) 2014-12-10 2017-06-06 Ford Global Technologies, Llc Encryption for telematics flashing of a vehicle
US9688244B2 (en) 2015-06-15 2017-06-27 Ford Global Technologies, Llc Autonomous vehicle theft prevention
EP3654576B1 (en) * 2018-11-16 2021-07-28 Siemens Aktiengesellschaft Computer-implemented method for error-correction-encoding and encrypting of a file
US11399286B2 (en) * 2019-08-20 2022-07-26 Qualcomm Incorporated Scrambling for wireless communications
US11363059B2 (en) * 2019-12-13 2022-06-14 Microsoft Technology Licensing, Llc Detection of brute force attacks
US20210152530A1 (en) * 2020-12-22 2021-05-20 Praveen Prasad Nair Tiered access to regions of interest in video frames
CN112865961B (zh) * 2021-01-06 2022-04-29 湖南遥昇通信技术有限公司 一种基于加权概率模型的对称加密方法、系统和设备
CN115297363B (zh) * 2022-10-09 2022-12-27 南通商翼信息科技有限公司 基于霍夫曼编码的视频数据加密传输方法
CN119210904B (zh) * 2024-11-27 2025-03-21 上海芯力基半导体有限公司 一种网络安全数据处理系统及交换机

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JPH10145773A (ja) * 1996-11-14 1998-05-29 Toshiba Corp 動画像データの暗号化方法およびその方法が適用されるコンピュータシステム並びに動画像データ符号化／復号化装置
SE513356C2 (sv) * 1998-11-20 2000-08-28 Ericsson Telefon Ab L M Förfarande och anordning för kryptering av bilder
EP1252738A2 (en) * 2000-01-31 2002-10-30 VDG Inc. Block encryption method and schemes for data confidentiality and integrity protection
US7165175B1 (en) * 2000-09-06 2007-01-16 Widevine Technologies, Inc. Apparatus, system and method for selectively encrypting different portions of data sent over a network
US7215770B2 (en) * 2002-01-02 2007-05-08 Sony Corporation System and method for partially encrypted multimedia stream
EP1359758A1 (en) * 2002-04-12 2003-11-05 Hewlett Packard Company, a Delaware Corporation Efficient encryption of image data
US7167560B2 (en) * 2002-08-08 2007-01-23 Matsushita Electric Industrial Co., Ltd. Partial encryption of stream-formatted media
JP4371663B2 (ja) 2003-01-14 2009-11-25 キヤノン株式会社 情報処理装置、情報処理方法
US7634002B2 (en) * 2003-11-26 2009-12-15 Hewlett-Packard Development Company, L.P. Method and apparatus for updating sequences in a bitstream
ES2345388T3 (es) * 2004-02-12 2010-09-22 Irdeto Access B.V. Metodo y sistema de almacenamiento de datos externo.
SG138452A1 (en) * 2004-05-18 2008-01-28 Victor Company Of Japan Content presentation
JP4237131B2 (ja) * 2004-11-29 2009-03-11 株式会社日立国際電気 暗号化データ通信装置
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JP4846449B2 (ja) 2006-05-23 2011-12-28 サンデン株式会社 通信機器用の接続装置
US8239680B2 (en) * 2006-07-26 2012-08-07 Japan Science And Technology Agency Secret communication method and secret communication device thereof
JP2008048050A (ja) * 2006-08-11 2008-02-28 Hitachi Kokusai Electric Inc 暗号化データ通信システム
JP2008147926A (ja) 2006-12-08 2008-06-26 Nippon Telegr & Teleph Corp <Ntt> 暗号化装置および復号化装置および方法

Also Published As

Publication number Publication date
EP2141923A1 (en) 2010-01-06
EP2297948A1 (en) 2011-03-23
WO2010000727A1 (en) 2010-01-07
MX2010013710A (es) 2011-02-15
CN102077592A (zh) 2011-05-25
AU2009265724A1 (en) 2010-01-07
RU2011103192A (ru) 2012-08-10
US8625791B2 (en) 2014-01-07
AU2009265724B2 (en) 2013-07-18
US20110119480A1 (en) 2011-05-19
JP5615273B2 (ja) 2014-10-29
KR20110040779A (ko) 2011-04-20
JP2011526697A (ja) 2011-10-13
KR101578055B1 (ko) 2015-12-16
RU2505931C2 (ru) 2014-01-27

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Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20140603

FZDE Discontinued

Effective date: 20170921