ATE509442T1 - Blockchiffriersystem unter verwendung von permutationen zum verbergen der kernchiffrierfunktion jeder verschlüsselungsrunde - Google Patents

Blockchiffriersystem unter verwendung von permutationen zum verbergen der kernchiffrierfunktion jeder verschlüsselungsrunde

Info

Publication number
ATE509442T1
ATE509442T1 AT04799288T AT04799288T ATE509442T1 AT E509442 T1 ATE509442 T1 AT E509442T1 AT 04799288 T AT04799288 T AT 04799288T AT 04799288 T AT04799288 T AT 04799288T AT E509442 T1 ATE509442 T1 AT E509442T1
Authority
AT
Austria
Prior art keywords
function
cipherizer
functions
permutations
hide
Prior art date
Application number
AT04799288T
Other languages
German (de)
English (en)
Inventor
Paulus Gorissen
Joachim Trescher
Antonius Staring
Willem Mallon
Menno Treffers
Original Assignee
Irdeto 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 Bv filed Critical Irdeto Bv
Application granted granted Critical
Publication of ATE509442T1 publication Critical patent/ATE509442T1/de

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
AT04799288T 2003-12-11 2004-11-30 Blockchiffriersystem unter verwendung von permutationen zum verbergen der kernchiffrierfunktion jeder verschlüsselungsrunde ATE509442T1 (de)

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
ATE509442T1 true ATE509442T1 (de) 2011-05-15

Family

ID=34684571

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04799288T ATE509442T1 (de) 2003-12-11 2004-11-30 Blockchiffriersystem unter verwendung von permutationen zum verbergen der kernchiffrierfunktion jeder verschlüsselungsrunde

Country Status (10)

Country Link
US (1) US8023651B2 (US08023651-20110920-P00014.png)
EP (1) EP1712032B1 (US08023651-20110920-P00014.png)
JP (2) JP4884976B2 (US08023651-20110920-P00014.png)
KR (1) KR101079565B1 (US08023651-20110920-P00014.png)
CN (1) CN1890914B (US08023651-20110920-P00014.png)
AT (1) ATE509442T1 (US08023651-20110920-P00014.png)
BR (1) BRPI0417450A (US08023651-20110920-P00014.png)
MX (1) MXPA06006464A (US08023651-20110920-P00014.png)
RU (1) RU2370897C2 (US08023651-20110920-P00014.png)
WO (1) WO2005060147A1 (US08023651-20110920-P00014.png)

Families Citing this family (17)

* 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
US8479016B2 (en) 2006-03-10 2013-07-02 Irdeto B.V. Method and system for obfuscating a cryptographic function
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
CN101491000B (zh) * 2006-07-12 2011-12-28 耶德托公司 用于混淆密码函数的方法和系统
EP2153365A1 (en) * 2007-05-22 2010-02-17 Koninklijke Philips Electronics N.V. 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
CN104919750B (zh) * 2012-12-21 2017-06-06 皇家飞利浦有限公司 计算关于函数‑输入值的数据函数的计算设备和方法
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
US10075290B2 (en) * 2013-12-20 2018-09-11 Koninklijke Philips N.V. Operator lifting in cryptographic algorithm
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
US11070358B2 (en) 2015-12-15 2021-07-20 Koninklijke Philips N.V. Computation device and method
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
CA2266665A1 (en) * 1997-07-29 1999-02-11 Lucent Technologies Inc. Methods and apparatus for enhanced cmea employing enhanced transformations
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
US8023651B2 (en) 2011-09-20
EP1712032A1 (en) 2006-10-18
MXPA06006464A (es) 2006-08-23
JP5453367B2 (ja) 2014-03-26
CN1890914A (zh) 2007-01-03
US20080285744A1 (en) 2008-11-20
KR101079565B1 (ko) 2011-11-04
JP2007514193A (ja) 2007-05-31
RU2370897C2 (ru) 2009-10-20
RU2006120479A (ru) 2007-12-27
EP1712032B1 (en) 2011-05-11
CN1890914B (zh) 2011-07-27
BRPI0417450A (pt) 2007-04-10
JP4884976B2 (ja) 2012-02-29
KR20060123298A (ko) 2006-12-01
JP2012037904A (ja) 2012-02-23
WO2005060147A1 (en) 2005-06-30

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