#LEA128 3 Rounds
connection relations
x_1_0, x_0_0, k_0, x_0_1, k_1
x_1_1, x_0_1, k_2, x_0_2, k_1
x_1_2, x_0_2, k_3, x_0_3, k_1
x_1_3, x_0_0
x_2_0, x_1_0, k_0, x_1_1, k_1
x_2_1, x_1_1, k_2, x_1_2, k_1
x_2_2, x_1_2, k_3, x_1_3, k_1
x_2_3, x_1_0
x_3_0, x_2_0, k_0, x_2_1, k_1
x_3_1, x_2_1, k_2, x_2_2, k_1
x_3_2, x_2_2, k_3, x_2_3, k_1
x_3_3, x_2_0
known
x_0_0
x_0_1
x_0_2
x_0_3
x_3_0
x_3_1
x_3_2
x_3_3
end