Q$-1$: Using the algorithm given below encrypt the following ASCII message using the ASCII key given below:

Message: $\text{'}$X$4$zr$\text{'}($You$\text{'}1$l need to encrypt $2$ blocks to complete this message$)$

Algorithm: Feistel

Block Size: $16$ bits

Number of Rounds: $2$

Key Round $1={?}^{{?}^{\text{'}}}B\text{'}$

Key Round $2={?}^{\text{'}}e\text{'}$

Function: Key $\{$:$)>4$

NOTE: $*$ is regular multiplication operator and $+$ is LOGICAL OR Operator,

$i=$ round number $($where$,$ when $i=0$;$L{E}_0,R{E}_0$ are inputs to round $1)$

$>$ means bit$-$shift right meaning binary value $010011114$ becomes $00000100$ : $1111$ bits shifted out

and zeros shifted in$.$

SHOW FEISTEL STRUCTURE below with the values of $L{E}_i,R_i,$ the result of $F$ and the result of $o+E_i$ for each

round and block of encryption.

What is the transmitted ciphertext $($provide in hexadecimal$)$

For any coding if at all, use Java!