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Analysis of ARX Functions: Pseudo-linear Methods for Approximation, Differentials, and Evaluating Diffusion
ARX block ciphers hash functions
2016/1/6
This paper explores the approximation of addition mod 2n
by addition mod 2w, where
1 ≤ w ≤ n, in ARX functions that use large words (e.g., 32-bit words or 64-bit words). Three main areas
are explor...
Pseudo-Linear Approximations for ARX Ciphers: With Application to Threefish
secret-key cryptography Threefish Skein ARX cipher linear cryptanalysis
2010/7/13
The operations addition modulo 2^n and exclusive-or have recently been combined to obtain an efficient mechanism for nonlinearity in block cipher design. In this paper, we show that ciphers using this...