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Constructing TI-friendly Substitution Boxes using Shift-Invariant Permutations
Shift-invariant Threshold implementation Sbox
2018/11/7
The threat posed by side channels requires ciphers that can be efficiently protected in both software and hardware against such attacks. In this paper, we proposed a novel Sbox construction based on i...
Relating Undisturbed Bits to Other Properties of Substitution Boxes
block cipher substitution box undisturbed bits
2016/1/6
Recently it was observed that for a particular nonzero input
difference to an S-Box, some bits in all the corresponding output
differences may remain invariant. These specific invariant bits are cal...