Q.5. (Marks:20) New Data Seal has the structure shown in figure below. Consider a scenario with n = 4 and r = 2 rounds. Messages are of length 2n= 8 bits. Calculate the output for the following construct. The design parameters are giben below: So: perform bitwise complement. Si: be the identity. Permutation Box: writes the bits in reverse order Suppose the key k is a mapping k: {0, 1}2 {0, 1}2 is defined by k(00) = 11 k(01) = 01 k(10)=10 k(11)=00 consider an input message m = (m0,m1)=(1001, 0101) and m2 = mo f(m). Calculate the final encrypted message at the end of 2 rounds. So k Permutation -12 (m)