Q$\mathrm{.}6$ Set. $($A$)$ Considering p $=383,$ q $=503,$ and s $=101355,$ identify the $16-$bit pseudorandom

sequence of the Blum Blum Shub $($BBS$)$ generator. Divide the generated bit sequence

B $=\{$B$0,$ B$1,$ B$2...$B$15\}$ into four sub$-$sequences $\{$B$0,$ B$1,$ B$2,$ B$3\},\{$B$4,$ B$5$ B$6,$ B$7\},$

$\{$B$8,$ B$9$ B$10,$ B$11\}$ and $\{$B$12,$ B$13,$ B$14,$ B$15\},$ each of four bits in length. Now, using

the decimal equivalent of the generated sequences $($represented as D$0,$ D$1,$ D$2,$ and

D$3),$ encrypt the secret plaintext $$metaverse$$ using the below key defined for Ceaser

cipher:

$=(0+1+2+3)26$