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Efficient Computation of Algebraic Immunity for Algebraic and Fast Algebraic Attacks [PDF]

open access: yes, 2006
In this paper we propose several efficient algorithms for assessing the resistance of Boolean functions against algebraic and fast algebraic attacks when implemented in LFSR-based stream ciphers. An algorithm is described which permits to compute the algebraic immunity d of a Boolean function with n variables in $\mathcal{O}(D^2)$ operations, for $D ...
Armknecht, Frederik   +5 more
openaire   +3 more sources

Algebraic entropy for algebraic maps [PDF]

open access: yes, 2015
We propose an extension of the concept of algebraic entropy, as introduced by Bellon and Viallet for rational maps, to algebraic maps (or correspondences) of a certain kind. The corresponding entropy is an index of the complexity of the map.
Hone, A. N. W.   +4 more
core   +1 more source

Extreme Algebraic Attacks [PDF]

open access: yesIACR Cryptol. ePrint Arch.
When designing filter functions in Linear Feedback Shift Registers (LFSR) based stream ciphers, algebraic criteria of Boolean functions such as the Algebraic Immunity (AI) become key characteristics because they guarantee the security of ciphers against the powerful algebraic attacks.
MEAUX, Pierrick, Wang Qingju,
openaire   +2 more sources

A short history of algebraic statistics [PDF]

open access: yes, 2008
In algebraic statistics, computational techniques from algebraic geometry become tools to address statistical problems. This, in turn, may prompt research in algebraic geometry. The basic ideas at the core of algebraic statistics will be presented. In
Eva Riccomagno, Riccomagno, Eva
core   +1 more source

Algebraic Side-Channel Attacks [PDF]

open access: yes, 2010
In 2002, algebraic attacks using overdefined systems of equations have been proposed as a potentially very powerful cryptanalysis technique against block ciphers. However, although a number of convincing experiments have been performed against certain reduced algorithms, it is not clear whether these attacks can be successfully applied in general and ...
Mathieu Renauld   +1 more
openaire   +3 more sources

Accelerated surgery versus standard care in hip fracture (HIP ATTACK): an international, randomised, controlled trial

open access: yes, 2020
Observational studies have suggested that accelerated surgery is associated with improved outcomes in patients with a hip fracture.
(HIP ATTACK Investigators), Landoni G.
core   +1 more source

Revisiting the Computation Analysis against Internal Encodings in White-Box Implementations

open access: yesTransactions on Cryptographic Hardware and Embedded Systems, 2023
White-box implementations aim to prevent the key extraction of the cryptographic algorithm even if the attacker has full access to the execution environment. To obfuscate the round functions, Chow et al.
Yufeng Tang   +3 more
doaj   +1 more source

Advanced Algebraic Attack on Trivium [PDF]

open access: yes, 2016
This paper presents an algebraic attack against Trivium that breaks 625 rounds using only 4096 bits of output in an overall time complexity of $$2^{42.2}$$ Trivium computations. While other attacks can do better in terms of rounds 799, this is a practical attack with a very low data usage down from $$2^{40}$$ output bits and low computation time down ...
Frank-M. Quedenfeld, Christopher Wolf
openaire   +3 more sources

Quadratic forms and linear algebraic groups [PDF]

open access: yes, 2009
Topics discussed at the workshop Quadratic Forms and Linear Algebraic Groups included besides the algebraic theory of quadratic and Hermitian forms and their Witt groups several aspects of the theory of linear algebraic groups and homogeneous varieties ...
Harbater, David   +3 more
core   +1 more source

The Switching Generator: New Clock-Controlled Generator with Resistance against the Algebraic and Side Channel Attacks

open access: yesEntropy, 2015
Since Advanced Encryption Standard (AES) in stream modes, such as counter (CTR), output feedback (OFB) and cipher feedback (CFB), can meet most industrial requirements, the range of applications for dedicated stream ciphers is decreasing.
Jun Choi   +3 more
doaj   +1 more source

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