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XSL attack

In cryptography, the eXtended Sparse Linearization (XSL) attack is a method of cryptanalysis for block ciphers. The attack was first published in 2002 by researchers Nicolas Courtois and Josef Pieprzyk. It has caused some controversy as it was claimed to have the potential to break the Advanced Encryption Standard (AES) cipher, also known as Rijndael…

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Application to block ciphers

SerpentPlaintextCiphertextS-boxInverse function
20 related topics

Solving multivariate quadratic equations

MultivariateNP-hardShamirPublic key algorithmHidden Field Equations
11 related topics

Overview

CryptographyCryptanalysisBlock ciphersNicolas CourtoisJosef Pieprzyk
17 related topics

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Overview

Solving multivariate quadratic equations

Application to block ciphers

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XSL attack

Nodes52
Edges51
Triples52
Avg. degree1.96
Density0.038462
Components1

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XSL attack

Top relations

related to Solving multivariate quadratic equations · 21
XSL attack → AES, Complexity, Courtois, Gaussian, HFE, Hidden Field Equations, However, In, In XSL, Kipnis, Linearization, MQ, NP-hard, One, Re-linearization, Shamir, Solving, The XSL, To, XL
related to Application to block ciphers · 19
XSL attack → AES, Biryukov, Camellia, Courtois, De Cannière, For, KASUMI, KHAZAD, MISTY1, Pieprzyk, Rijndael, Serpent, Subsequently, The, The S-box, The XSL, Their, Unlike, XSL
related to External links · 10
XSL attack → AES, An, Courtois, Crypto-gram, MohCourtois, NOT, Pieprzyk, Quadratic Cryptanalysis, Savard, XSL

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Important terminology

aes equations attack xsl courtois systems doi isbn algorithm block ciphers pp quadratic linearization cryptanalysis key lecture notes computer science

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Gaussian eliminationinstance ofwhich involves replacing each quadratic term with an independent variable and solving the resultant linear system using an algorithm0.80text
AESinstance ofComplexity estimates showed that the XL attack would not work against the equations derived from block ciphers0.80text
XSL attackrelated to Application to block ciphersCourtois0.60section
XSL attackrelated to Application to block ciphersPieprzyk0.60section
XSL attackrelated to Application to block ciphersAES0.60section
XSL attackrelated to Application to block ciphersRijndael0.60section
XSL attackrelated to Application to block ciphersSerpent0.60section
XSL attackrelated to Application to block ciphersThe0.60section
XSL attackrelated to Application to block ciphersThe S-box0.60section
XSL attackrelated to Application to block ciphersSubsequently0.60section
XSL attackrelated to Application to block ciphersBiryukov0.60section
XSL attackrelated to Application to block ciphersDe Cannière0.60section

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