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On Lai–Massey and quasi-Feistel ciphers
Designs, Codes, and Cryptography, 2010 For finite sets \(\mathcal{X}\), \(\mathcal{Y}\) a combiner over \((\mathcal{X},\mathcal{Y})\) is a parameterized family \(\Gamma = {\{ {\Gamma _z}\} _{z \in \mathcal{Y}}}\) of quasigroups \({\Gamma _z}:{\mathcal{X}^2} \to \mathcal{X}\), denote \({\Gamma _z}(x,y) = \Gamma \left[\left[ {x*y|z} \right]\right]\). Let \(b > 1\), \(r > 1\) be fixed integers,
Jooyoung Lee, Aaram Yun, Je Hong Park
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, 2017 International audience ; This book provides a survey on different kinds of Feistel ciphers, with their definitions and mathematical/computational properties. Feistel ciphers are widely used in cryptography in order to obtain pseudorandom permutations and secret-key block ciphers. In Part 1, we describe Feistel ciphers and their variants. We also give a
Valerie Nachef +2 more
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Secure Quaternion Feistel Cipher for DICOM Images
IEEE Transactions on Image Processing, 2019An improved and extended version of a quaternion-based lossless encryption technique for digital image and communication on medicine (DICOM) images is proposed. We highlight and address several security flaws present in the previous version of the algorithm originally proposed by Dzwonkowski et al. (2015).
Mariusz Dzwonkowski
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A chaos-based block cipher with Feistel structure
2014 IEEE 13th International Conference on Cognitive Informatics and Cognitive Computing, 2014In this paper, based on chaotic systems and balanced Feistel network structure, a symmetric block cipher with 256-bit secret key is proposed. The cipher operates on 64-bit plaintext blocks through 16 rounds computing. Within the kernel component of the cipher, i.e., round function F, a hyperchaotic system with four-wing attractors is used to improve ...
Jun Peng, Qi Han
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Feistel ciphers in East Germany in the communist era
Cryptologia, 2018Feistel ciphers (balanced and unbalanced) represent the most popular symmetric cipher type in modern cryptography.
Nicolas Courtois, Klaus Schmeh
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Modified Generalized Feistel Network Block Cipher for the Internet of Things
Symmetry, 2023 With the advent of the Internet-of-Things (IoT) technologies, millions of low-resource devices are constantly used at the network’s edge. As a result, the large amount of private and sensitive data generated by these devices must be securely ...
Faieza Samat +2 more
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Formalizing the Effect of Feistel Cipher Structures on Differential Cache Attacks
IEEE Transactions on Information Forensics and Security, 2013 The success of a side-channel attack depends mainly on three factors, namely, the cipher algorithm, the attack platform, and the measurement noise. In this paper, we consider a class of side-channel attacks known as differential cache attacks on Feistel ...
Chester Rebeiro, Debdeep Mukhopadhyay
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Quantum attacks on some feistel block ciphers
Designs, Codes and Cryptography, 2020zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xiaoyang Dong 0001 +2 more
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Quasigroup Representation of Some Feistel and Generalized Feistel Ciphers
2013There are several block ciphers designed by using Feistel networks or their generalization, and some of them allow to be represented by using quasigroup transformations, for suitably defined quasigroups. We are interested in those Feistel ciphers and Generalized Feistel ciphers whose round functions in their Feistel networks are bijections.
Aleksandra Mileva, Smile Markovski
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Information leakage of Feistel ciphers
IEEE Transactions on Information Theory, 2001Summary: The author examines the information leakage between sets of plaintext and ciphertext bits in symmetric-key block ciphers. The paper demonstrates the effectiveness of information leakage as a measure of cipher security by relating information leakage to linear cryptanalysis and by determining a lower bound on the amount of data required in an ...
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