Binary bi-braces and applications to cryptography

arXiv:2404.09315v1 Announce Type: cross
Abstract: In a XOR-based alternating block cipher the plaintext is masked by a sequence of layers each performing distinct actions: a highly nonlinear permutation, a linear transformation, and the bitwise key addition. When assessing resistance against classical differential attacks (where differences are computed with respect to XOR), the cryptanalysts must only take into account differential probabilities introduced by the nonlinear layer, this being the only one whose differential transitions are not deterministic. The temptation of computing …

actions addition applications arxiv attacks binary bitwise block cipher cryptography cs.cr key linear math.gr performing plaintext respect transformation xor