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Abstract: In this paper, we give a general framework for the analysis of block ciphers using the statistical technique of likelihood estimation. We show how various recent successful cryptanalyses of block ciphers can be regarded in this framework. By analysing the SAFER block cipher in this framework we expose a cryptographic weakness of that cipher. Key Words. Statistical Inference, Likelihood Estimation, Block Ciphers, DES, SAFER, Cryptanalysis, Differential Cryptanalysis, Linear Cryptanalysis.... (Update)
Context of citations to this paper: More
.... Step 4 implements the maximum likelihood decision rule for the last round key when the counts are considered to be the observation [MPWW94]. The basic attack must in practice be speeded up by exploiting key equivalence . Two keys k; k 0 2 K are equivalent if g r Gamma1...
...cryptanalysis. Interestingly several researchers have highlighted a duality between linear and differential cryptanalysis [103]. This duality is also exhibited during the design of techniques to construct good differential characteristics and linear approximations...
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BibTeX entry: (Update)
Sean Murphy, Fred Piper, M. Walker, and P. Wild. Likelihood estimation for block cipher keys. submitted for publication, 1994. http://citeseer.ist.psu.edu/murphy94likelihood.html More
@misc{ murphy94likelihood,
author = "S. Murphy and F. Piper and M. Walker and P. Wild",
title = "Likelihood estimation for block cipher keys",
text = "Sean Murphy, Fred Piper, M. Walker, and P. Wild. Likelihood estimation
for block cipher keys. submitted for publication, 1994.",
year = "1994",
url = "citeseer.ist.psu.edu/murphy94likelihood.html" }
Citations (may not include all citations):288 Linear Cryptanalysis Method for DES Cipher (context) - Matsui - 1994
241 Communication Theory of Secrecy Systems (context) - Shannon - 1949
202 Data Encryption Standard (context) - of - 1977
155 Differential Cryptanalysis of DES-like Cryptosystems - Biham, Shamir - 1991
84 New Types of Cryptanalytic Attacks using Related Keys - Biham - 1994
80 The First Experimental Cryptanalysis of the Data Encryption .. (context) - Matsui - 1994
39 Linear Cryptanalysis using Multiple Approximations (context) - Kaliski, Robshaw - 1994
25 Chapman and Hall (context) - Silvey - 1975
17 Linear Structures in Block Ciphers (context) - Evertse - 1988
16 A new Method of Known Plaintext Attack of the FEAL cipher (context) - Matsui, Yamagishi - 1993
15 Pairs and Triplets of DES S-Boxes - Davies, Murphy - 1995
6 Convergence of a Bayesian Iterative Error--correction Procee.. (context) - Mihaljevi'c, Goli'c - 1993
5 Cryptanalysis of the CFB mode of DES with a Reduced Number o.. - Preneel, Nuttin et al. - 1994
4 the Cryptanalysis of Rotor Machines and Substitution--Permut.. (context) - Andelman, Reeds - 1982
4 A Statistical Attack of the FEAL-8 Cryptosystem (context) - Gilbert, Chass'e - 1991
4 DES has no Per Round Linear Factors (context) - Reeds, Manferdelli - 1985
2 Cryptanalysis of DES with a Reduced Number of Rounds : Seque.. (context) - Chaum, Evertse - 1986
2 Journal of Cryptology (context) - Murphy, of - 1995
1 Analysis of the Security and New Algorithms for Modern Indus.. (context) - Desmedt - 1984
1 Markov Ciphers and Differential Crytpanalysis (context) - Lai, Massey et al. - 1991
1 Hypothesenprufung in der Kryptologie (context) - Brynielsson - 1992
1 Maximum Likelihood Estiamtion Applied to Cryptanalysis (context) - Andelman - 1979
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