Results 11 to 20 of about 284 (159)
Survey on approaches of stream cipher cryptanalysis
Cryptanalysis plays an essential role in the design of ciphers algorithm.Based on this, the common approaches were reviewed and investigated to clarify their relations.These approaches were categorized into four classes according to their main techniques,
Zhaocun ZHOU, Dengguo FENG
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Algebraic Techniques in Differential Cryptanalysis [PDF]
In this paper we propose a new cryptanalytic method against block ciphers, which combines both algebraic and statistical techniques. More specifically, we show how to use algebraic relations arising from differential characteristics to speed up and improve key-recovery differential attacks against block ciphers.
Albrecht, Martin, Cid, Carlos
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Algebraic Side Channel Attack on Trivium and Grain Ciphers
Solving a system of multivariate quadratic equations obtained through algebraic cryptanalysis is a nondeterministic polynomial time-complete problem. Owing to the trend of stream ciphers based on nonlinear update, the success of algebraic attacks has ...
Asif Raza Kazmi +4 more
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An algorithm for constructing S-boxes for block symmetric encryption
This article presents an algorithm for the generation of S-boxes with the maximum algebraic immunity and high nonlinearity. The algorithm is founded method of the permutation of output element of S-box. On basis of the proposed method, $S(8\times 8)$-box
Alijon Bozorbayevicha Sattarov +1 more
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A White-Box Masking Scheme Resisting Computational and Algebraic Attacks
White-box cryptography attempts to protect cryptographic secrets in pure software implementations. Due to their high utility, white-box cryptosystems (WBC) are deployed by the industry even though the security of these constructions is not well defined ...
Okan Seker +2 more
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Using Linearizing Sets to Solve Multivariate Quadratic Equations in Algebraic Cryptanalysis
In this paper we describe a class of cryptographic guess-and-determine attacks which is based on the notion of a linearizing set. A linearizing set-based attack is applied to a system of Multivariate Quadratic equations (MQ) over $GF(2)$ field, which ...
Alexander Semenov +3 more
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Algebraic Collision Attacks on Keccak
In this paper, we analyze the collision resistance of the two smallest versions of Keccak which have a width of 200 and 400 bits respectively. We show that algebraic and linearization techniques can serve collision cryptanalysis by using some interesting
Rachelle Heim Boissier +2 more
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Security analysis of an encryption scheme based on nonpositional polynomial notations
The aim of the research was to conduct a cryptographic analysis of an encryption scheme developed on the basis of nonpositional polynomial notations to estimate the algorithm strength. Nonpositional polynomial notations (NPNs) are residue number systems (
Kapalova Nursulu +1 more
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Algebraic Techniques in Linear Cryptanalysis
Linear cryptanalysis is a statistical analysis method. Linear cryptanalysis constructs probabilistic patterns first and then distinguishes the cipher from a random permutation using lots of plaintext-ciphertext pairs. Linear cryptanalysis has a big data complexity. Algebraic attack attempts to exploit the algebraic structure of the cipher by expressing
Hong Ru Wei, Ya Fei Zheng
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Generation of Nonlinear Substitutions by Simulated Annealing Algorithm
The problem of nonlinear substitution generation (S-boxes) is investigated in many related works in symmetric key cryptography. In particular, the strength of symmetric ciphers to linear cryptanalysis is directly related to the nonlinearity of ...
Alexandr Kuznetsov +7 more
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