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Two New Techniques of Side-Channel Cryptanalysis
Biryukov, Alex; Khovratovich, Dmitry
2007In Cryptographic Hardware and Embedded Systems - CHES 2007
Peer reviewed
 

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Keywords :
side channel attack; collision attack; masking; AES
Abstract :
[en] We describe two new techniques of side-channel cryptanalysis which we call the impossible collision attack and the multiset collision attack. These are inspired by the state-of-the-art cryptanalytic techniques of impossible differential attacks [BihamBS99] and partial-function collision attacks [GilbertM00] respectively. Using these techniques on an example of the AES we show that one has to mask all the rounds of a 128-bit key AES in order to prevent such attacks. For example these attacks can be used to break a recent proposal by Schramm et al. [SchrammP06] of high order masking for the AES, since it protects only 3 external rounds.
Disciplines :
Computer science
Identifiers :
UNILU:UL-ARTICLE-2007-003
Author, co-author :
Biryukov, Alex ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC)
Khovratovich, Dmitry ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC)
Language :
English
Title :
Two New Techniques of Side-Channel Cryptanalysis
Publication date :
2007
Event name :
Cryptographic Hardware and Embedded Systems - CHES 2007
Event date :
2007
Audience :
International
Main work title :
Cryptographic Hardware and Embedded Systems - CHES 2007
Pages :
195-208
Peer reviewed :
Peer reviewed
Available on ORBilu :
since 17 January 2014

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