GETU32
s0 = GETU32(ct ) ^ rk[0];
s1 = GETU32(ct + 4) ^ rk[1];
s2 = GETU32(ct + 8) ^ rk[2];
s3 = GETU32(ct + 12) ^ rk[3];
rk[0] = GETU32(cipherKey );
rk[1] = GETU32(cipherKey + 4);
rk[2] = GETU32(cipherKey + 8);
rk[3] = GETU32(cipherKey + 12);
rk[4] = GETU32(cipherKey + 16);
rk[5] = GETU32(cipherKey + 20);
rk[6] = GETU32(cipherKey + 24);
rk[7] = GETU32(cipherKey + 28);
s0 = GETU32(pt ) ^ rk[0];
s1 = GETU32(pt + 4) ^ rk[1];
s2 = GETU32(pt + 8) ^ rk[2];
s3 = GETU32(pt + 12) ^ rk[3];