DES_orginal_core
................\Expansion_Permutation.v
................\Initial_Permutation.v
................\Inverse_Initial_Permutation.v
................\Key_Generation.v
................\Key_Top.v
................\Permuatation.v
................\Permuted_Choice2.v
................\Reg32.v
................\Round1.v
................\Sbox_Output.v
................\Sbox_Rom1.v
................\Sbox_Rom2.v
................\Sbox_Rom3.v
................\Sbox_Rom4.v
................\Sbox_Rom5.v
................\Sbox_Rom6.v
................\Sbox_Rom7.v
................\Sbox_Rom8.v
................\Swap.v
................\Top.v
................\Xor_Operation.v
................\Xor_Permutation.v