“…The scheme of difference transformation in terms of differential cryptanalysis is called the differential characteristic, or, as in the case of differential attacks on Rijndael-like ciphers, the byte differential characteristic (BDC). The work [12] is devoted to the analysis of BDCs, byte differentials and their probabilities for Rijndael-like ciphers. In [13], an attempt to generalize these results for block ciphers in general was made, and a model of ciphers provably secure against truncated differential attacks was proposed.…”