private static int inv_mcol(int x) { int t0, t1; t0 = x; t1 = t0 ^ shift(t0, 8); t0 ^= FFmulX(t1); t1 ^= FFmulX2(t0); t0 ^= t1 ^ shift(t1, 16); return t0; }
private static int inv_mcol(int x) { int t0, t1; t0 = x; t1 = t0 ^ shift(t0, 8); t0 ^= FFmulX(t1); t1 ^= FFmulX2(t0); t0 ^= t1 ^ shift(t1, 16); return t0; }