BRPI0604544A - método de embaralhamento e desembaralhamento de unidades de dados - Google Patents

método de embaralhamento e desembaralhamento de unidades de dados

Info

Publication number
BRPI0604544A
BRPI0604544A BRPI0604544-8A BRPI0604544A BRPI0604544A BR PI0604544 A BRPI0604544 A BR PI0604544A BR PI0604544 A BRPI0604544 A BR PI0604544A BR PI0604544 A BRPI0604544 A BR PI0604544A
Authority
BR
Brazil
Prior art keywords
blocks
sequence
sequences
data
stream
Prior art date
Application number
BRPI0604544-8A
Other languages
English (en)
Inventor
Antonius Van Der Ven
Original Assignee
Irdeto Access Bv
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 Irdeto Access Bv filed Critical Irdeto Access Bv
Publication of BRPI0604544A publication Critical patent/BRPI0604544A/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
    • H04L9/06—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
    • 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
    • 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
    • H04L2209/20—Manipulating the length of blocks of bits, e.g. padding or block truncation
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Storage Device Security (AREA)
  • Error Detection And Correction (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)

Abstract

MéTODOS DE EMBARALHAMENTO E DESEMBARALHAMENTO DE UNIDADES DE DADOS. A presente invenção refere-se a um método de embaralhamento de um fluxo de dados que inclui: obtenção do fluxo de uma sucessão de primeiras seqüências (29, 30) de blocos (Pi) de dados; inversão da ordem dos blocos (Pi) em cada uma das primeiras seqüências (29, 30) de blocos para formar respectivas segundas seqüências (31, 37) de blocos de dados; e criptografação dos blocos em cada segunda seqüência (31, 37) de blocos, usando uma linguagem cifrada (Ek) no modo de encadeamento de blocos, inicializado com um respectivo vetor de inicialização (IV~ 3~, IVn) para cada segunda seqüência (31, 37) de blocos. Para uma sucessão de primeiras seqüências (29, 30) de blocos incluídas em uma unidade (26) de dados dentro do fluxo, pelo meno um vetor de inicialização (IVn) para criptografação de uma segunda seqüência (37) de blocos formados de uma primeira seqüência (30) de blocos na unidade é gerado na dependência de pelo menos um bloco em uma primeira seqüência precedente (29) de blocos da unidade.
BRPI0604544-8A 2005-11-08 2006-11-08 método de embaralhamento e desembaralhamento de unidades de dados BRPI0604544A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05110495A EP1783948B1 (en) 2005-11-08 2005-11-08 Methods of scrambling and descrambling units of data

Publications (1)

Publication Number Publication Date
BRPI0604544A true BRPI0604544A (pt) 2007-08-28

Family

ID=36204375

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0604544-8A BRPI0604544A (pt) 2005-11-08 2006-11-08 método de embaralhamento e desembaralhamento de unidades de dados

Country Status (16)

Country Link
US (1) US8300812B2 (pt)
EP (2) EP2015506B1 (pt)
JP (1) JP4976107B2 (pt)
KR (1) KR101345569B1 (pt)
CN (1) CN1992589B (pt)
AT (2) ATE495600T1 (pt)
AU (1) AU2006235899B2 (pt)
BR (1) BRPI0604544A (pt)
CA (1) CA2567229C (pt)
DE (2) DE602005022001D1 (pt)
ES (1) ES2376818T3 (pt)
MX (1) MXPA06012926A (pt)
MY (1) MY146334A (pt)
RU (1) RU2439668C2 (pt)
TW (1) TW200835340A (pt)
ZA (1) ZA200608879B (pt)

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US8538012B2 (en) * 2007-03-14 2013-09-17 Intel Corporation Performing AES encryption or decryption in multiple modes with a single instruction
EP2192773A1 (en) * 2008-12-01 2010-06-02 Irdeto Access B.V. Content decryption device and encryption system using an additional key layer
KR101066661B1 (ko) * 2009-10-27 2011-09-22 한국조폐공사 스마트 카드 데이터 암호화 방법
US8938619B2 (en) 2010-12-29 2015-01-20 Adobe Systems Incorporated System and method for decrypting content samples including distinct encryption chains
JP2013011702A (ja) * 2011-06-28 2013-01-17 Dainippon Printing Co Ltd 暗号化方法、暗号化プログラム、暗号化装置、復号方法、復号プログラム、復号装置
US9038194B2 (en) * 2011-11-30 2015-05-19 Red Hat, Inc. Client-side encryption in a distributed environment
US8879731B2 (en) * 2011-12-02 2014-11-04 Adobe Systems Incorporated Binding of protected video content to video player with block cipher hash
US8903088B2 (en) 2011-12-02 2014-12-02 Adobe Systems Incorporated Binding of protected video content to video player with encryption key
US20150113286A1 (en) * 2012-03-21 2015-04-23 Irdeto Canada Corporation Method and system for chain transformation
US9425959B1 (en) * 2012-10-03 2016-08-23 Altera Corporation Security variable scrambling
US9064318B2 (en) 2012-10-25 2015-06-23 Adobe Systems Incorporated Image matting and alpha value techniques
US10638221B2 (en) 2012-11-13 2020-04-28 Adobe Inc. Time interval sound alignment
US9355649B2 (en) 2012-11-13 2016-05-31 Adobe Systems Incorporated Sound alignment using timing information
US9201580B2 (en) 2012-11-13 2015-12-01 Adobe Systems Incorporated Sound alignment user interface
US9076205B2 (en) 2012-11-19 2015-07-07 Adobe Systems Incorporated Edge direction and curve based image de-blurring
US10249321B2 (en) 2012-11-20 2019-04-02 Adobe Inc. Sound rate modification
US8897588B2 (en) 2012-11-20 2014-11-25 Adobe Systems Incorporated Data-driven edge-based image de-blurring
US9451304B2 (en) 2012-11-29 2016-09-20 Adobe Systems Incorporated Sound feature priority alignment
US10455219B2 (en) 2012-11-30 2019-10-22 Adobe Inc. Stereo correspondence and depth sensors
US9135710B2 (en) 2012-11-30 2015-09-15 Adobe Systems Incorporated Depth map stereo correspondence techniques
US10249052B2 (en) 2012-12-19 2019-04-02 Adobe Systems Incorporated Stereo correspondence model fitting
US9208547B2 (en) 2012-12-19 2015-12-08 Adobe Systems Incorporated Stereo correspondence smoothness tool
US9214026B2 (en) 2012-12-20 2015-12-15 Adobe Systems Incorporated Belief propagation and affinity measures
CN104637039B (zh) * 2013-11-07 2020-07-07 深圳市腾讯计算机系统有限公司 一种图片处理的方法及装置
US9386067B2 (en) * 2013-12-30 2016-07-05 Sonic Ip, Inc. Systems and methods for playing adaptive bitrate streaming content by multicast
TWI554908B (zh) 2015-11-03 2016-10-21 澧達科技股份有限公司 資料加密系統
SG11201809115RA (en) * 2016-04-29 2018-11-29 Nchain Holdings Ltd Implementing logic gate functionality using a blockchain
US11330465B2 (en) 2016-05-11 2022-05-10 Huawei Technologies Co., Ltd. Method and apparatus for indicating control information in a wireless frame
JP7198012B2 (ja) * 2018-07-31 2022-12-28 キヤノン株式会社 通信装置、制御方法、及びプログラム
US12010066B2 (en) * 2019-07-16 2024-06-11 Nokia Technologies Oy Apparatus, method, and computer program for scrambling a transport blocked based on whether a previous transport block was successfully received
US11646804B2 (en) 2019-08-06 2023-05-09 John C. S. Koo Light-based data encoding and/or decoding device
CN111031322B (zh) * 2019-10-24 2021-09-28 五邑大学 自同步混沌流密码的bmp图像加解密方法和设备
CN114095153B (zh) * 2020-08-05 2024-12-17 迈络思科技有限公司 密码数据通信装置

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Publication number Priority date Publication date Assignee Title
NL9301784A (nl) 1993-10-14 1995-05-01 Irdeto Bv Systeem voor het versleutelen en ontsleutelen van digitale informatie.
US5673319A (en) * 1995-02-06 1997-09-30 International Business Machines Corporation Block cipher mode of operation for secure, length-preserving encryption
RU2103829C1 (ru) * 1997-04-02 1998-01-27 Государственное унитарное предприятие "Специализированный центр программных систем "Спектр" Способ шифрования информации, представленной двоичным кодом
US6061449A (en) * 1997-10-10 2000-05-09 General Instrument Corporation Secure processor with external memory using block chaining and block re-ordering
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KR100927322B1 (ko) * 2001-12-19 2009-11-19 이르데토 액세스 비.브이. 디지털 콘텐트 분배 시스템
US6950517B2 (en) * 2002-07-24 2005-09-27 Qualcomm, Inc. Efficient encryption and authentication for data processing systems
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JP2005167635A (ja) * 2003-12-02 2005-06-23 Ntt Docomo Inc 装置、及び、データ送受信方法

Also Published As

Publication number Publication date
MXPA06012926A (es) 2007-05-07
US20080025509A1 (en) 2008-01-31
KR20070049592A (ko) 2007-05-11
DE602005022001D1 (de) 2010-08-05
CA2567229A1 (en) 2007-05-08
TW200835340A (en) 2008-08-16
EP2015506A1 (en) 2009-01-14
MY146334A (en) 2012-07-31
ATE495600T1 (de) 2011-01-15
AU2006235899A1 (en) 2007-05-24
EP2015506B1 (en) 2010-06-23
EP1783948B1 (en) 2011-01-12
ES2376818T3 (es) 2012-03-20
ZA200608879B (en) 2009-02-25
ATE472212T1 (de) 2010-07-15
EP1783948A1 (en) 2007-05-09
HK1104134A1 (en) 2008-01-04
CA2567229C (en) 2015-01-06
KR101345569B1 (ko) 2014-01-15
US8300812B2 (en) 2012-10-30
DE602005025891D1 (de) 2011-02-24
RU2439668C2 (ru) 2012-01-10
CN1992589B (zh) 2011-09-07
JP2007133400A (ja) 2007-05-31
CN1992589A (zh) 2007-07-04
JP4976107B2 (ja) 2012-07-18
AU2006235899B2 (en) 2011-01-27
RU2006139126A (ru) 2008-05-20

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved

Owner name: IRDETO B.V. (NL)

B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 12A ANUIDADE.

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 2487 DE 04-09-2018 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.