Results 1 to 10 of about 68 (50)
Improved related‐tweakey rectangle attacks on round‐reduced Deoxys‐BC
IET Information Security, 2023 Deoxys‐BC is the internal tweakable block cipher of the authenticated encryption (AE) Deoxys family, in which Deoxys‐II is the primary choice for the use case of ‘Defence in depth’ among the portfolio of CAESAR competition.
Lin Tan, Hong Xu
exaly +3 more sources
Security Analysis of SKINNY under Related-Tweakey Settings
IACR Transactions on Symmetric Cryptology, 2017 In CRYPTO’16, a new family of tweakable lightweight block ciphers - SKINNY was introduced. Denoting the variants of SKINNY as SKINNY-n-t, where n represents the block size and t represents the tweakey length, the design specifies t ∈ {n, 2n, 3n}. In this
Guozhen Liu, Mohona Ghosh, Ling Song
doaj +7 more sources
Zero-Correlation Attacks on Tweakable Block Ciphers with Linear Tweakey Expansion [PDF]
IACR Transactions on Symmetric Cryptology, 2019 The design and analysis of dedicated tweakable block ciphers is a quite recent and very active research field that provides an ongoing stream of new insights.
Ralph Ankele +5 more
doaj +7 more sources
New Related-Tweakey Boomerang and Rectangle Attacks on Deoxys-BC Including BDT Effect
IACR Transactions on Symmetric Cryptology, 2019 In the CAESAR competition, Deoxys-I and Deoxys-II are two important authenticated encryption schemes submitted by Jean et al. Recently, Deoxys-II together with Ascon, ACORN, AEGIS-128, OCB and COLM have been selected as the final CAESAR portfolio ...
Boxin Zhao, Xiaoyang Dong, Keting Jia
doaj +6 more sources
Tweaks and Keys for Block Ciphers: The TWEAKEY Framework [PDF]
Lecture Notes in Computer Science, 2014 We propose the TWEAKEY framework with goal to unify the design of tweakable block ciphers and of block ciphers resistant to related-key attacks. Our framework is simple, extends the key-alternating construction, and allows to build a primitive with arbitrary tweak and key sizes, given the public round permutation (for instance, the AES round ...
Ivica Nikolic +2 more
exaly +3 more sources
MILP-Aided Related-Tweak/Key Impossible Differential Attack and its Applications to QARMA, Joltik-BC
IEEE Access, 2019 In this paper, we study the relation of related-tweak/key impossible differentials with single-key ones. Following a heuristic strategy, we can derive longer related-tweak/key impossible differentials from single-key ones. We implement this strategy with
Xiaoyang Dong, Rui Zong
exaly +3 more sources
Impossible differential cryptanalysis of lightweight tweakable block cipher CRAFT
CybersecurityThe CRAFT cipher is a lightweight tweakable block cipher introduced at FSE 2019. Its design aims to incorporate countermeasures against Differential Fault Attacks at the algorithmic level.
Yongqiang Li +2 more
exaly +2 more sources
On Large Tweaks in Tweakable Even-Mansour with Linear Tweak and Key Mixing
IACR Transactions on Symmetric Cryptology, 2023 In this paper, we provide the first analysis of the Iterated Tweakable Even-Mansour cipher with linear tweak and key (or tweakey) mixing, henceforth referred as TEML, for an arbitrary tweak(ey) size kn for all k ≥ 1, and arbitrary number of rounds r ≥ 2.
Benoît Cogliati +3 more
doaj +1 more source
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 +1 more source
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 +1 more source