P3. Show the P-Box defined by the following table: 8 1 2 3 4 5 6 7 P4. Determine whether each of the P-boxes with the following permutation table is a straight P-box, a compression P-box, or an expansion P-box. Detail your reason. a) P-box:1 1 2 3 4 4 b) P-box: 1 3 5 67 c) P-box:123456