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Title: Improved SQUARE Attacks against Reduced-Round HIEROCRYPT
Authors: Barreto, PSLM
Rijmen, Vincent
Nakahara, Jorge
Preneel, Bart
Vandewalle, Joos
Kim, H
Issue Date: 2002
Publisher: Springer-Verlag
Host Document: Lecture Notes in Computer Science vol:2355 pages:165-173
Conference: FSE 2001 date:April 02-04, 2001
Abstract: We present improved SQUARE attacks against the NESSIE and ECTP candidate block ciphers HIEROCRYPT-3 and HIEROCRYPT-L1, designed by Toshiba. We improve over the previous best known attack on five S-box layers of HIEROCRYPT-3 by a factor of 2(128) computational steps with an attack on six layers for 128-bit keys, and extend it to seven S-box layers for longer keys. For HIEROCRYPT-L1 we are able to improve previous attacks up to seven S-box layers (out of twelve).
URI: 
ISSN: 0302-9743
Publication status: published
KU Leuven publication type: IC
Appears in Collections:ESAT - STADIUS, Stadius Centre for Dynamical Systems, Signal Processing and Data Analytics

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