BRPI0417450A - método e sistema para prestar uma função de processamento de sinal digital e dispositivo de execução - Google Patents

método e sistema para prestar uma função de processamento de sinal digital e dispositivo de execução

Info

Publication number
BRPI0417450A
BRPI0417450A BRPI0417450-0A BRPI0417450A BRPI0417450A BR PI0417450 A BRPI0417450 A BR PI0417450A BR PI0417450 A BRPI0417450 A BR PI0417450A BR PI0417450 A BRPI0417450 A BR PI0417450A
Authority
BR
Brazil
Prior art keywords
functions
function
signal processing
execution device
digital signal
Prior art date
Application number
BRPI0417450-0A
Other languages
English (en)
Inventor
Paulus M H M A Gorissen
Joachim A Trescher
Antonius A M Staring
Willem C Mallon
Menno A Treffers
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Publication of BRPI0417450A publication Critical patent/BRPI0417450A/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
    • 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
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0625—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation with splitting of the data block into left and right halves, e.g. Feistel based algorithms, DES, FEAL, IDEA or KASUMI
    • 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
    • H04L2209/16—Obfuscation or hiding, e.g. involving white box

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)
  • Stored Programmes (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Computer And Data Communications (AREA)

Abstract

"MéTODO E SISTEMA PARA PRESTAR UMA FUNçãO DE PROCESSAMENTO DE SINAL DIGITAL E DISPOSITIVO DE EXECUçãO". Em um sistema (600), um servidor (610) presta uma função de processamento de sinal digital <sym> para um dispositivo de execução (620) em uma forma obscurecida. A função <sym> inclui uma função em cascata de funções de processamento de sinal<sym>~ 1~ 1 <243> <sym> <242> N para a fórmula (I). O servidor inclui um processador (612) para selecionar uma série de 2N permutações inversíveis P~ i,i~ 1 <243> <sym> <242> 2N; calculando uma série de N funções g,, onde g, é funcionalmente equivalente à fórmula (II) para 1 <243> <sym> <242> N; e calcular uma sén'e de N-1 funções h~ i~, onde h~ i~ é funcionalmente equivalente à fórmula (III) para 2<243> <sym> 2N. O servidor inclui dispositivos (614) para equipar o dispositivo de execução com uma função em cascata de dispositivo de execução que inclui a fórmula (IV) onde y~ 1~,...,y~ N~ são parâmetros de função para a fórmula (V) e dispositivos (616) para prestar as funções g~ 1~,...,g~ N~ para o dispositivo de execução. O dispositivo de execução inclui recursos (626) para obter as funções g~ 1~, .... g~ N~ e um processador (622) para carregar a função em cascata do dispositivo de execução e aplicar a função em cascata do dispositivo de execução às funções g~ 1~,...,g~ N~ (ED,(g~ 1~,...,g~ N~)).
BRPI0417450-0A 2003-12-11 2004-11-30 método e sistema para prestar uma função de processamento de sinal digital e dispositivo de execução BRPI0417450A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03104643 2003-12-11
PCT/IB2004/052607 WO2005060147A1 (en) 2003-12-11 2004-11-30 Block ciphering system, using permutations to hide the core ciphering function of each encryption round

Publications (1)

Publication Number Publication Date
BRPI0417450A true BRPI0417450A (pt) 2007-04-10

Family

ID=34684571

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0417450-0A BRPI0417450A (pt) 2003-12-11 2004-11-30 método e sistema para prestar uma função de processamento de sinal digital e dispositivo de execução

Country Status (10)

Country Link
US (1) US8023651B2 (pt)
EP (1) EP1712032B1 (pt)
JP (2) JP4884976B2 (pt)
KR (1) KR101079565B1 (pt)
CN (1) CN1890914B (pt)
AT (1) ATE509442T1 (pt)
BR (1) BRPI0417450A (pt)
MX (1) MXPA06006464A (pt)
RU (1) RU2370897C2 (pt)
WO (1) WO2005060147A1 (pt)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE509442T1 (de) 2003-12-11 2011-05-15 Irdeto Bv Blockchiffriersystem unter verwendung von permutationen zum verbergen der kernchiffrierfunktion jeder verschlüsselungsrunde
KR20060107282A (ko) * 2005-04-07 2006-10-13 엘지전자 주식회사 데이터 재생방법, 데이터 기록재생 플레이어 및 데이터전송방법
EP1997265B1 (en) * 2006-03-10 2020-08-05 Irdeto B.V. Integrity of a data processing system using white-box for digital content protection
JP2007298847A (ja) * 2006-05-02 2007-11-15 Kddi Corp プログラム内データの保護装置、保護方法およびプログラム
EP2044723A2 (en) 2006-07-12 2009-04-08 Koninklijke Philips Electronics N.V. Verifying authenticity of an execution environment
TW200903296A (en) * 2007-05-22 2009-01-16 Koninkl Philips Electronics Nv Data security
EP2173056A1 (fr) * 2008-09-04 2010-04-07 Gemplus Procédé de contre-mesure dans un composant électronique mettant en ouvre un algorithme de cryptographie à clef secrète
EP2393292A1 (en) * 2010-06-01 2011-12-07 Nagravision S.A. A method and apparatus for decrypting encrypted content
EP2405650A1 (en) * 2010-07-09 2012-01-11 Nagravision S.A. A method for secure transfer of messages
US9111072B1 (en) 2011-08-23 2015-08-18 Tectonic Labs, LLC Anti-reverse engineering unified process
US9594769B2 (en) * 2012-12-21 2017-03-14 Koninklijke Philips N.V. Computing device configured with a table network
CN103595539B (zh) * 2013-11-26 2016-08-24 南开大学 保留格式的数值型个人识别信息的加密方法
CN106031079B (zh) * 2013-12-20 2019-10-11 皇家飞利浦有限公司 加密算法中的运算符提升
US9405919B2 (en) * 2014-03-11 2016-08-02 Qualcomm Incorporated Dynamic encryption keys for use with XTS encryption systems employing reduced-round ciphers
US10184974B2 (en) * 2015-09-22 2019-01-22 Raytheon Company Systems and methods for determining whether a circuit is operating properly
RU2708439C1 (ru) * 2015-12-15 2019-12-06 Конинклейке Филипс Н.В. Вычислительное устройство и способ
CN107517206A (zh) * 2017-08-18 2017-12-26 北京北信源软件股份有限公司 一种安全通信的方法、装置、可读介质和存储控制器

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582174B1 (fr) * 1985-05-15 1990-03-09 Thomson Csf Dispositif de chiffrement par substitutions-permutations
US5699512A (en) 1994-04-28 1997-12-16 Nippon Telegraph And Telephone Corp. Software analysis protection method for changing the software pattern on the memory of a user terminal
JP3463963B2 (ja) * 1994-04-28 2003-11-05 日本電信電話株式会社 ソフトウェア解析保護方法
US5838794A (en) * 1996-01-11 1998-11-17 Teledyne Electronic Technologies Method and apparatus for inter-round mixing in iterated block substitution systems
US5949884A (en) * 1996-11-07 1999-09-07 Entrust Technologies, Ltd. Design principles of the shade cipher
JP4739465B2 (ja) 1997-06-09 2011-08-03 インタートラスト テクノロジーズ コーポレイション ソフトウェアセキュリティを増強するための混乱化技術
KR100573180B1 (ko) * 1997-07-29 2006-04-24 루센트 테크놀러지스 인크 개선된 변환을 사용한 개선된 셀룰러 메시지 암호화 알고리즘을 위한 방법 및 장치
WO1999008411A2 (en) * 1997-08-08 1999-02-18 Jonathan Stiebel New operation for key insertion with folding
JP2001067270A (ja) * 1999-08-27 2001-03-16 Nippon Telegr & Teleph Corp <Ntt> コンテンツ共有管理システムおよびコンテンツ保護方法およびこの方法を記録した記録媒体
CA2327911A1 (en) * 2000-12-08 2002-06-08 Cloakware Corporation Obscuring functions in computer software
ATE509442T1 (de) 2003-12-11 2011-05-15 Irdeto Bv Blockchiffriersystem unter verwendung von permutationen zum verbergen der kernchiffrierfunktion jeder verschlüsselungsrunde

Also Published As

Publication number Publication date
WO2005060147A1 (en) 2005-06-30
KR101079565B1 (ko) 2011-11-04
RU2006120479A (ru) 2007-12-27
CN1890914A (zh) 2007-01-03
CN1890914B (zh) 2011-07-27
MXPA06006464A (es) 2006-08-23
US8023651B2 (en) 2011-09-20
JP2007514193A (ja) 2007-05-31
JP4884976B2 (ja) 2012-02-29
US20080285744A1 (en) 2008-11-20
KR20060123298A (ko) 2006-12-01
JP2012037904A (ja) 2012-02-23
RU2370897C2 (ru) 2009-10-20
EP1712032B1 (en) 2011-05-11
JP5453367B2 (ja) 2014-03-26
ATE509442T1 (de) 2011-05-15
EP1712032A1 (en) 2006-10-18

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: IRDETO B.V. (NL)

Free format text: TRANSFERIDO DE: KONINKLIJKE PHILIPS ELECTRONICS N.V,

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

Free format text: REFERENTE A 9A 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: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2260 DE 29/04/2014.