Results 21 to 30 of about 1,782,571 (254)
Efficient Computation of Algebraic Immunity for Algebraic and Fast Algebraic Attacks [PDF]
, 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
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Algebraic Attacks Galore! [PDF]
Groups – Complexity – Cryptology, 2009 Summary: This is the first in a two-part survey of current techniques in algebraic cryptanalysis. After introducing the basic setup of algebraic attacks and discussing several attack scenarios for symmetric cryptosystems, public key cryptosystems, and stream ciphers, we discuss a number of individual methods. The XL, XSL, and MutantXL attacks are based
openaire +1 more source
A new approach based on quadratic forms to attack the McEliece cryptosystem [PDF]
IACR Cryptology ePrint Archive, 2023 We bring in here a novel algebraic approach for attacking the McEliece cryptosystem. It consists in introducing a subspace of matrices representing quadratic forms.
Alain Couvreur, Rocco Mora, J. Tillich
semanticscholar +1 more source
Polynomial Time Key-Recovery Attack on High Rate Random Alternant Codes [PDF]
IEEE Transactions on Information Theory, 2023 A long standing open question is whether the distinguisher of high rate alternant codes or Goppa codes from Faugère, Gauthier-Uma na, Otmani, Perret, and Tillich in 2011 can be turned into an algorithm recovering the algebraic structure of such codes ...
M. Bardet, Rocco Mora, J. Tillich
semanticscholar +1 more source
Revisiting the Computation Analysis against Internal Encodings in White-Box Implementations
Transactions 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
Entropy, 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
IEEE Access, 2022 In this paper, we propose and evaluate a method for generating key-dependent feedback configurations (KDFC) for $\sigma $ -LFSRs. $\sigma $ -LFSRs with such configurations can be applied to any stream cipher that uses a word-based LFSR.
Subrata Nandi +3 more
doaj +1 more source
Algebraic Side-Channel Attacks [PDF]
, 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
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An efficient deep learning model for brain tumour detection with privacy preservation
CAAI Transactions on Intelligence Technology, EarlyView., 2023 Abstract Internet of medical things (IoMT) is becoming more prevalent in healthcare applications as a result of current AI advancements, helping to improve our quality of life and ensure a sustainable health system. IoMT systems with cutting‐edge scientific capabilities are capable of detecting, transmitting, learning and reasoning.
Mujeeb Ur Rehman +8 more
wiley +1 more source
Algebraic Attacks on Combiners with Memory [PDF]
, 2003 Recently, algebraic attacks were proposed to attack several cryptosystems, e.g. AES, LILI-128 and Toyocrypt. This paper extends the use of algebraic attacks to combiners with memory. A (k,l)-combiner consists of k parallel linear feedback shift registers (LFSRs), and the nonlinear filtering is done via a finite automaton with k input bits and l memory ...
Armknecht, Frederik, Krause, Matthias
openaire +1 more source