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Efficient Search for Optimal Diffusion Layers of Generalized Feistel Networks
Diffusion Round Feistel Permutations
2019/5/23
The Feistel construction is one of the most studied ways of building block ciphers. Several generalizations were then proposed in the literature, leading to the Generalized Feistel Network, where the ...
Meet-in-the-Middle Attacks on 3-Line Generalized Feistel Networks
3-line Feistel Meet-in-the-middle attack Key recovery
2017/11/13
In the paper, we study the security of 3-line generalized Feistel network, which is a considerate choice for some special needs, such as designing a 96-bit cipher based on a 32-bit round function. We ...
Analysis of Impossible, Integral and Zero-Correlation Attacks on Type-II Generalized Feistel Networks using the Matrix Method
block ciphers Feistel like ciphers impossible differential
2016/1/4
While recent publications have shown strong relations between
impossible differential and zero-correlation distinguishers as well as
between zero-correlation and integral distinguishers, we analyze ...
On generalized Feistel networks
block ciphers coupling Feistel networks generalized Feistel networks modes of operation
2010/7/13
We prove beyond-birthday-bound security for the well-known types of generalized Feistel networks, including: (1) unbalanced Feistel networks, where the $n$-bit to $m$-bit round functions may have $n\n...