搜索结果: 1-11 共查到“Feistel networks”相关记录11条 . 查询时间(0.062 秒)
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 ...
Generic Round-Function Recovery for Feistel Networks over Small Domains
feistel networks format-preserving encryption
2018/1/31
Feistel Networks (FN) are now massively being used to encrypt credit card numbers through format-preserving encryption. In our work, we focus on FN with two branches, entirely unknown round functions,...
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 ...
Feistel Networks: Indifferentiability at 10 Rounds
Feistel Networks Indifferentiability Rounds
2016/1/22
We prove that a (balanced) 10-round Feistel network is indifferentiable from a random permutation. In a previous seminal result, Holenstein et al. [17] had established indifferentiability of Feistel a...
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 ...
Cryptanalysis of Feistel Networks with Secret Round Functions
Feistel Network Yoyo Generic Attack
2015/12/24
Generic distinguishers against Feistel Network with up to 5
rounds exist in the regular setting and up to 6 rounds in a multi-key
setting. We present new cryptanalyses against Feistel Networks with ...
We prove that a (balanced) 10-round Feistel network is indifferentiable from a random permutation. In a previous seminal result, Holenstein et al. had established indifferentiability of Feistel at 14 ...
Indifferentiability of 8-Round Feistel Networks
Indifferentiability 8-Round Feistel Networks
2015/12/21
We prove that a balanced 8-round Feistel network is indifferentiable from a random permutation.
This result comes on the heels of (and is part of the same body of work as) a 10-round
indifferentiabi...
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...
2-round Substitution-Permutation and 3-round Feistel Networks have bad Algebraic Degree
2-round Substitution-Permutation 3-round Feistel Networks Algebraic Degree
2010/2/20
We study algebraic degree profile of reduced-round block cipher schemes.
We show that the degree is not maximal with elementary combinatorial
and algebraic arguments. We discuss on how it can be tur...
Lai-Massey Scheme and Quasi-Feistel Networks (Extended Abstract)
Lai-Massey scheme Feistel network Luby-Rackoff
2008/5/29
We introduce the notion of quasi-Feistel network, which is generalization of the
Feistel network, and contains the Lai-Massey scheme as an instance.