... MD5STEP(F4(b,c,d), a, b, c, d, in[0] + 0xf4292 244 L, 6); MD5STEP(F4(a,b,c), d, a, b, c, in[7] + 0x432aff97L, 10); MD5STEP(F4(d,a,b), c, d, a, b, in[ 14] + 0xab 942 3a7L, 15); MD5STEP(F4(c,d,a), ... in[0] + 0xf4292 244 , 6); MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10); MD5STEP(F4, c, d, a, b, in[ 14] + 0xab 942 3a7, 15); MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21); MD5STEP(F4, a, b, ... mối quan hệ sau: J11 = Y1 U1 J13 = Y3 U3 J12 = Y2 U2 J 14 = Y 4 U 4 Ta có: J11 = Y1 Z 49 -1 = W81 Z 49 Z 49 -1 = W81 139V83 = I12 V 84 = I 14 Vì...