Title
Impossible-Differential and Boomerang Cryptanalysis of Round-Reduced Kiasu-BC.
Abstract
Kiasu-BC is a tweakable block cipher proposed by Jean et al. at ASIACRYPT 2014 alongside their TWEAKEY framework. The cipher is almost identical to the AES-128 except for the tweak, which renders it an attractive primitive for various modes of operation and applications requiring tweakable block ciphers. Therefore, studying how the additional tweak input affects security compared to that of the AES is highly valuable to gain trust in future instantiations. This work proposes impossible-differential and boomerang attacks on eight rounds of Kiasu-BC in the single-key model, using the core idea that the tweak input allows to construct local collisions. While our results do not threat the security of the full-round version, they help concretize the security of Kiasu-BC in the single-key model.
Year
DOI
Venue
2017
10.1007/978-3-319-52153-4_12
Lecture Notes in Computer Science
Keywords
DocType
Volume
Symmetric-key cryptography,Cryptanalysis,Tweakable block cipher
Conference
10159
ISSN
Citations 
PageRank 
0302-9743
0
0.34
References 
Authors
12
2
Name
Order
Citations
PageRank
Christoph Dobraunig14716.38
Eik List211113.70