Results 181 to 190 of about 2,969,359 (203)

On Bias Estimation in Linear Cryptanalysis

2000
Security analysis of block ciphers against linear cryptanalysis has virtually always been based on the bias estimates obtained by the Piling-Up Lemma (PUL) method. Despite its common use, and despite the fact that the independence assumption of the PUL is known not to hold in practice, accuracy of the PUL method has not been analyzed to date.
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Differential-Multiple Linear Cryptanalysis

2010
Differential-linear cryptanalysis was introduced by Langford et al in 1994. After that, Biham et al proposed an enhanced differential-linear cryptanalysis in 2002. In this paper, we present an extension to the enhanced differential-linear cryptanalysis, called differential-multiple linear cryptanalysis, in which a differential characteristic can be ...
Zhiqiang Liu 0001, Dawu Gu, Jing Zhang, Wei Li 0013   +3 more
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Linear Cryptanalysis Using Multiple Linear Approximations

2011
In this article, the theory of multidimensional linear attacks on block ciphers is developed and the basic attack algorithms and their complexity estimates are presented. As an application, Cho's multidimensional linear distinguisher for the block cipher PRESENT is discussed in detail.
Miia Hermelin, Kaisa Nyberg
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Linear Cryptanalysis

2023
Nyberg, Kaisa, Florez Gutierrez, Antonio
  +5 more sources

On Large Distributions for Linear Cryptanalysis

2007
Calculating the distribution of certain functions during the linear cryptanalysis of stream ciphers is a frequently encountered problem. Let a function N (or a noise variable) be expressed via k mutually independent and uniformly distributed n-bit random variables X1,X2, . . . , Xk.
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Linear cryptanalysis of LOKI and s 2DES

1995
This paper discusses linear cryptanalysis of LOKI89, LOKI91 and s2DES. Our computer program based on Matsui's search algorithm has completely determined their best linear approximate equations, which tell us applicability of linear cryptanalysis to each cryptosystem.
Toshio Tokita, Tohru Sorimachi, Mitsuru Matsui   +2 more
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Experimenting Linear Cryptanalysis

2011
Linear cryptanalysis is one of the most investigated attack against modern block ciphers. It has significantly influenced the design of symmetric encryption algorithms. However, because of the large cardinality of the problems they raise, security evaluations against these attacks frequently rely on a number of simplifying assumptions. In this chapter,
Collard Baudoin, Standaert François-Xavier   +1 more
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Linear Cryptanalysis: The Idea

2011
After differential cryptanalysis, linear cryptanalysis provides the most important general technique for analysing a block cipher. Generally speaking it tends to be far less successful than differential cryptanalysis, the most prominent exception to this rule of thumb being DES; see Chap. 2.
Lars R. Knudsen, Matthew J. B. Robshaw
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Quantum linear cryptanalysis on a toy cipher

Pramana - Journal of Physics, 2023
Namita Tiwari, Ashwini Malviya
exaly  

Exponential Sums in Linear Cryptanalysis

Journal of Cryptology
Tim Beyne, Clémence Bouvier
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