publication . Part of book or chapter of book . Conference object . Other literature type . 2016

Square Attack on 7-Round Kiasu-BC

Florian Mendel;
Open Access
  • Published: 19 Jun 2016
  • Publisher: Springer International Publishing
Abstract
Kiasu-BC is a tweakable block cipher presented within the TWEAKEY framework at AsiaCrypt 2014. Kiasu-BC is almost identical to AES-128, the only difference to AES-128 is the tweak addition, where the 64-bit tweak is xored to the first two rows of every round-key. The security analysis of the designers focuses primarily on related-key related-tweak differential characteristics and meet-in-the-middle attacks. For other attacks, they conclude that the security level of Kiasu-BC is similar to AES-128. In this work, we provide the first third-party analysis of Kiasu-BC. We show that we can mount Square attacks on up to 7-round Kiasu-BC with a complexity of about \(2^...
Subjects
free text keywords: Cryptanalysis, law.invention, law, Discrete mathematics, Block cipher, Theoretical computer science, Security analysis, Computer science, Row, Integral cryptanalysis, Security level
Related Organizations
Funded by
EC| HECTOR
Project
HECTOR
HARDWARE ENABLED CRYPTO AND RANDOMNESS
  • Funder: European Commission (EC)
  • Project Code: 644052
  • Funding stream: H2020 | RIA
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publication . Part of book or chapter of book . Conference object . Other literature type . 2016

Square Attack on 7-Round Kiasu-BC

Florian Mendel;