Resistance of a CAST-Like Encryption Algorithm to Linear and Differential Cryptanalysis

J. Lee, H. M. Heys () and S. E. Tavares ()
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J. Lee: Queen’s University, Department of Electrical and Computer Engineering
H. M. Heys: Memorial University of Newfoundland, Faculty of Engineering and Applied Science
S. E. Tavares: Queen’s University, Department of Electrical and Computer Engineering

A chapter in Selected Areas in Cryptography, 1997, pp 55-70 from Springer

Abstract: Abstract Linear cryptanalysis and differential cryptanalysis are two recently introduced, powerful methodologies for attacking private-key block ciphers. In this paper, we examine the application of these two cryptanalysis techniques to a CAST-like encryption algorithm. It is shown that, when randomly generated substitution boxes (s-boxes) are used in a CAST-like encryption algorithm, the resulting cipher is resistant to both the linear attack and the differential attack.

Keywords: private key ciphers; linear cryptanalysis; differential cryptanalysis; CAST; S-boxes (search for similar items in EconPapers)
Date: 1997
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-1-4615-5489-9_5

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DOI: 10.1007/978-1-4615-5489-9_5

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