Results 31 to 40 of about 145 (76)

Tweaks and Keys for Block Ciphers: the TWEAKEY Framework [PDF]

open access: yes, 2015
. 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 ...
Jérémy Jean   +2 more
core  

Related-Tweakey Impossible Differential Attack on Reduced-Round Deoxys-BC-256 [PDF]

open access: yes, 2018
Deoxys-BC is the internal tweakable block cipher of Deoxys, a third-round authenticated encryption candidate at the CAESAR competition. In this study, by adequately studying the tweakey schedule, we seek a six-round related-tweakey impossible ...
Xiaoyang Dong, Xiaoyun Wang, Rui Zong
core  

Differential Power Analysis of the SKINNY Family of Block Ciphers [PDF]

open access: yes, 2020
The SKINNY family of lightweight block ciphers is well-researched in terms of standard cryptanalysis, but little has been done in the field of power analysis attacks. By sequentially dividing and conquering, univariate Differential Power Analysis attacks
Tverråen, Martin
core  

uKNIT: Breaking Round-Alignment for Cipher Design

open access: yesIACR Transactions on Symmetric Cryptology
Automated cryptanalysis has seen a lot of attraction and success in the past decade, leading to new distinguishers or key-recovery attacks against various ciphers.
Kai Hu   +3 more
doaj   +1 more source

Cryptanalysis of QARMAv2

open access: yesIACR Transactions on Symmetric Cryptology
QARMAv2 is a general-purpose and hardware-oriented family of lightweight tweakable block ciphers (TBCs) introduced in ToSC 2023. QARMAv2, as a redesign of QARMAv1 with a longer tweak and tighter security margins, is also designed to be suitable for ...
Hosein Hadipour, Yosuke Todo
doaj   +1 more source

Impossible Differential Cryptanalysis of Reduced-Round SKINNY [PDF]

open access: yes, 2017
SKINNY is a new lightweight tweakable block cipher family proposed by Beierle $et$ $al$. in CRYPTO 2016. SKINNY-$n$-$t$ is a block cipher with $n$-bit state and $t$-bit tweakey (key and tweak).
Mohamed Tolba   +2 more
core  

The Deoxys AEAD family

open access: yes, 2021
We present the Deoxys family of authenticated encryption schemes, which consists of Deoxys-I and Deoxys-II. Both are nonce-based authenticated encryption schemes with associated data and have either 128- or 256-bit keys. Deoxys-I is similar to OCB: It is
Jean, Jérémy   +3 more
core   +1 more source

Computing the Differential Probability of a Word-Based Block Cipher

open access: yesCryptography
Differential cryptanalysis is one of the fundamental cryptanalysis techniques to evaluate the security of the block cipher. In many cases, resistance to differential cryptanalysis is proven through the upper bound of the differential characteristic ...
Dawoon Kwon, Junghwan Song
doaj   +1 more source

Biased differential distinguisher – Cryptanalysis of reduced-round SKINNY

open access: yes, 2021
SKINNY is a lightweight tweakable block cipher which received a great deal of cryptanalytic attention due to its elegant structure and efficiency. Despite the cryptanalytic efforts the security margins are remaining high.
Huang, Senyang,   +7 more
core   +1 more source

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