On Permutation Layer of Type 1, Source-Heavy, and Target-Heavy Generalized Feistel Structures
Lecture Notes in Computer Science, 2011The Generalized Feistel Structure (GFS) generally uses the sub-block-wise cyclic shift in the permutation layer, the layer between the two F function layers. For Type 2 GFS, at FSE 2010, Suzaki and Minematsu showed that a better diffusion property can be obtained if one uses some other sub-block-wise permutation.
Tetsu Iwata
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Cryptanalysis on Three Kinds of Generalized Feistel Structures with Secret Round Functions
Arabian Journal for Science and Engineering, 2018Since the structural cryptanalysis of SASAS was presented in Eurocrypt’01 for the first time, a series of studies focusing on the substitution–permutation structures and Feistel structures with secret inner components have sparked cryptanalysts’ great interests.
Ting Cui, Jiyan Zhang, Jin Chenhui
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Construction of $${\text {MDS}}$$ matrices from generalized Feistel structures
Designs, Codes and Cryptography, 2021zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mahdi Sajadieh, Mohsen Mousavi
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The development of generic key recovery attack on Feistel structure
Theoretical and Natural Science, 2023Feistel structure was firstly proposed in 1973, and because its structure has a great avalanche effect and similar encryption and decryption, it was used in many encryption schemes, like DES, AES, CAST. According to the ambiguity of the intermediate state, Feistel structures are separately named as Feistel-1, Feistel-2 and Feistel-3.Even though some of
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Structural Evaluation for Generalized Feistel Structures and Applications to LBlock and TWINE
2015The generalized Feistel structure GFS is the variant of Feistel structure with $$m>2$$m>2 branches. While the GFS is widely used, the security is not well studied. In this paper, we propose a generic algorithm for searching integral distinguishers. By applying the algorithm, we prove that the low bound for the length of integral distinguishers is $$m^2+
Huiling Zhang, Wenling Wu
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A New Method for Finding Impossible Differentials of Generalized Feistel Structures
Chinese Journal of Electronics, 2018Impossible differential cryptanalysis is one of the most powerful attacks against modern block ciphers. In most cases, the resistance of a block cipher against impossible differential cryptanalysis can be measured by the length of the longest impossible differentials.
Ting Cui, Chenhui Jin, Jing Ma
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Accurate Estimation of the Full Differential Distribution for General Feistel Structures
2016Statistical cryptanalysis is one of the most powerful tools to analyze symmetric key cryptographic primitives such as block ciphers. One of these attacks, the differential attack has been demonstrated to break a wide range of block ciphers. Block cipher proposals previously obtain a rough estimate of their security margin against differential attacks ...
Jiageng Chen +3 more
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GFLE: a low-energy lightweight block cipher based on a variant of generalized Feistel structure
Physica ScriptaAbstract Low-energy lightweight block ciphers are essential for applications with extremely resource-constrained to reduce energy and maintain security. The trade-off between diffusion property and area is a widely studied issue in the design of low-energy block ciphers.
Minhua Hu +3 more
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An image encryption algorithm based on circular rotation and generalized Feistel structure
Soft Computing, 2023Yafei Wang, Lin Teng, Xingyuan Wang
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Improved quantum attack on several generalized unbalanced Feistel structures
2022 International Conference on Networks, Communications and Information Technology (CNCIT), 2022Zou Kun, Dong Xinfeng, Zhang Fuzhong
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