3DES Mask Attack

[canibalurl]

I need help finding a mask for my key


3DES KEY
5CE21B8AF31407B031CD382DB1C098CC

K1
5CE21B8AF31407B0

K2
31CD382DB1C098CC

K3 = K1

5CE21B8AF31407B0

K1 K2 K3
5CE21B8AF31407B031CD382DB1C098CC5CE21B8AF31407B0

how do i put the mask for k1 to be equal to k3, so i would have to find only k1 and k2

[hd7111]

K1 = 11 22 33 44 55 66 77 88
K2 = AA BB CC DD EE FF 11 22
K3 = 11 22 33 44 55 66 77 88

so the k1=k3
No matters, this get same result.
3DES-ABA(24)==3DES(16)
11 22 33 44 55 66 77 88 AA BB CC DD EE FF 11 22 or 11 22 33 44 55 66 77 88 AA BB CC DD EE FF 11 22 11 22 33 44 55 66 77 88