Ultrametric integral cryptanalysis [PDF]
A systematic method to analyze \emph{divisibility properties} is proposed. In integral cryptanalysis, divisibility properties interpolate between bits that sum to zero (divisibility by two) and saturated bits (divisibility by $2^{n - 1}$ for $2^n$ inputs)
Michiel Verbauwhede, Tim Beyne
core
BEANIE – A 32-bit Cipher for Cryptographic Mitigations against Software Attacks [PDF]
In modern CPU architectures, various security features to mitigate software attacks can be found. Examples of such features are logical isolation, memory tagging or shadow stacks.
Artur Folwarczny +9 more
core
Optimizing Rectangle and Boomerang Attacks: A Unified and Generic Framework for Key Recovery [PDF]
The rectangle attack has shown to be a very powerful form of cryptanalysis against block ciphers. Given a rectangle distinguisher, one expects to mount key recovery attacks as efficiently as possible.
Danping Shi +7 more
core
An Automated Model to Search For Differential Meet-In-The-Middle Attack: Applications to AndRX Ciphers [PDF]
Differential meet-in-the-middle (MITM) cryptanalysis, recently introduced by Boura et al., has emerged as a powerful and versatile technique for assessing the security of modern block cipher designs.
Debasmita Chakraborty +3 more
core
uKNIT: Breaking Round-alignment for Cipher Design -- Featuring uKNIT-BC, an Ultra Low-Latency Block Cipher [PDF]
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
core
Finding Complete Impossible Differential Attacks on AndRX Ciphers and Efficient Distinguishers for ARX Designs [PDF]
The impossible differential (ID) attack is one of the most important cryptanalytic techniques for block ciphers. There are two phases to finding an ID attack: searching for the distinguisher and building a key recovery upon it.
Debasmita Chakraborty +3 more
core
Revisiting Differential-Linear Attacks via a Boomerang Perspective with Application to AES, Ascon, CLEFIA, SKINNY, PRESENT, KNOT, TWINE, WARP, LBlock, Simeck, and SERPENT [PDF]
In 1994, Langford and Hellman introduced differential-linear (DL) cryptanalysis, with the idea of decomposing the block cipher E into two parts, EU and EL, such that EU exhibits a high-probability differential trail, while EL has a high-correlation ...
Hosein Hadipour +2 more
core
The Large Block Cipher Family Vistrutah [PDF]
Vistrutah is a large block cipher with block sizes of 256 and 512 bits. It iterates a step function that applies two AES rounds to each 128-bit block of the state, followed by a state-wide cell permutation.
Bishwajit Chakraborty +2 more
core