Results 1 to 10 of about 61 (45)

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   +4 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   +5 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

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

Cybersecurity
The 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, Huiqin Chen, Yang Wenyin   +2 more
exaly   +2 more sources

Nonce‐misuse resilience of Romulus‐N and GIFT‐COFB

IET Information Security, Volume 17, Issue 3, Page 468-484, May 2023., 2023
Abstract Nonce‐misuse resilience (NMRL) security of Romulus‐N and GIFT‐COFB is analysed, the two finalists of NIST Lightweight Cryptography project for standardising lightweight authenticated encryption. NMRL, introduced by Ashur et al. at CRYPTO 2017, is a relaxed security notion from a stronger, nonce‐misuse resistance notion. The authors have proved
Akiko Inoue, Chun Guo, Kazuhiko Minematsu   +2 more
wiley   +1 more source

Meet‐in‐the‐middle attacks on round‐reduced CRAFT based on automatic search

IET Information Security, Volume 17, Issue 3, Page 534-543, May 2023., 2023
We construct a DS‐MITM automatic search model for CRAFT and use the automatic search model to detect a 9‐round DS‐MITM distinguisher. Based on the 9‐round distinguisher, 19/20‐round DS‐MITM attacks can be presented. Abstract CRAFT is a lightweight block cipher designed by Beierle et al.
Zhangjun Ma, Manman Li, Shaozhen Chen
wiley   +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, Nasour Bagheri, Ling Song   +2 more
doaj   +1 more source

Statistical Model on CRAFT

Chinese Journal of Electronics, Volume 31, Issue 4, Page 698-712, July 2022., 2022
Many cryptanalytic techniques for symmetric‐key primitives rely on specific statistical analysis to extract some secrete key information from a large number of known or chosen plaintext‐ciphertext pairs. For example, there is a standard statistical model for differential cryptanalysis that determines the success probability and complexity of the attack
Caibing WANG, Hao GUO, Dingfeng YE, Ping WANG   +3 more
wiley   +1 more source

Efficient constructions for large‐state block ciphers based on AES New Instructions

IET Information Security, Volume 16, Issue 3, Page 145-160, May 2022., 2022
Abstract Large‐state block ciphers with 256 bits or 512 bits block sizes receive much attention from the viewpoint of long‐term security. Existing large‐state block ciphers, such as Haraka‐v2 and Pholkos, consist of only the AES New Instructions set (AES‐NI) and a word shuffle that can be efficiently executed by SIMD instructions for fast software ...
Rentaro Shiba, Kosei Sakamoto, Takanori Isobe   +2 more
wiley   +1 more source