Results 11 to 20 of about 145 (76)
A Note on Related-Tweakey Impossible Differential Attacks [PDF]
IACR Communications in CryptologyIn this note we review the technique proposed at ToSC 2018 by Sadeghi et al. for attacks built upon several related-tweakey impossible differential trails. We show that the initial encryption queries are improper and lead the authors to misevaluate a filtering value in the key recovery phase.
Bonnetain, Xavier, Lallemand, Virginie
core +6 more sources
Cryptanalysis of Reduced round SKINNY Block Cipher
IACR Transactions on Symmetric Cryptology, 2018 SKINNY is a family of lightweight tweakable block ciphers designed to have the smallest hardware footprint. In this paper, we present zero-correlation linear approximations and the related-tweakey impossible differential characteristics for different ...
Sadegh Sadeghi +2 more
doaj +3 more sources
Differential Attacks on CRAFT Exploiting the Involutory S-boxes and Tweak Additions
IACR Transactions on Symmetric Cryptology, 2020 CRAFT is a lightweight tweakable block cipher proposed at FSE 2019, which allows countermeasures against Differential Fault Attacks to be integrated into the cipher at the algorithmic level with ease.
Hao Guo +6 more
doaj +3 more sources
Improved Rectangle Attacks on SKINNY and CRAFT
IACR Transactions on Symmetric Cryptology, 2021 The boomerang and rectangle attacks are adaptions of differential cryptanalysis that regard the target cipher E as a composition of two sub-ciphers, i.e., E = E1 ∘ E0, to construct a distinguisher for E with probability p2q2 by concatenating two short ...
Hosein Hadipour +2 more
doaj +3 more sources
Impossible Boomerang Attacks Revisited
IACR Transactions on Symmetric CryptologyThe impossible boomerang (IB) attack was first introduced by Lu in his doctoral thesis and subsequently published at DCC in 2011. The IB attack is a variant of the impossible differential (ID) attack by incorporating the idea of the boomerang attack. In
Jianing Zhang, Haoyang Wang, Deng Tang
doaj +2 more sources
Clustering Related-Tweak Characteristics: Application to MANTIS-6 [PDF]
IACR Transactions on Symmetric Cryptology, 2018 The TWEAKEY/STK construction is an increasingly popular approach for designing tweakable block ciphers that notably uses a linear tweakey schedule. Several recent attacks have analyzed the implications of this approach for differential cryptanalysis and ...
Maria Eichlseder, Daniel Kales
doaj +2 more sources
Cryptanalysis of Forkciphers [PDF]
IACR Transactions on Symmetric Cryptology, 2020 The forkcipher framework was designed in 2018 by Andreeva et al. for authenticated encryption of short messages. Two dedicated ciphers were proposed in this framework: ForkAES based on the AES (and its tweakable variant Kiasu-BC), and ForkSkinny based on
Augustin Bariant +2 more
doaj +2 more sources
A Security Analysis of Deoxys and its Internal Tweakable Block Ciphers
IACR Transactions on Symmetric Cryptology, 2017 In this article, we provide the first independent security analysis of Deoxys, a third-round authenticated encryption candidate of the CAESAR competition, and its internal tweakable block ciphers Deoxys-BC-256 and Deoxys-BC-384.
Carlos Cid +4 more
doaj +3 more sources
A Meet-in-the-middle Attack Method of Deoxys-BC [PDF]
Jisuanji kexueThe Deoxys-BC adopting the SPN structure and TWEAK framework is a lightweight tweakable block cipher published at ASIACRPYPT 2014.By researching the internal characteristic and key schedule of the Deoxys-BC,a 6-round meet-in-the-middle distinguisher ...
LI Zheng, LI Manman, CHEN Shaozhen
doaj +2 more sources
Practical Key-Recovery Attack on MANTIS5
IACR Transactions on Symmetric Cryptology, 2017 MANTIS is a lightweight tweakable block cipher published at CRYPTO 2016. In addition to the full 14-round version, MANTIS7, the designers also propose an aggressive 10-round version, MANTIS5.
Christoph Dobraunig +3 more
doaj +3 more sources