4. Consider a cryptographic system in which a message is list of 5 real numbers: n = [n_1, ... n_5].
The numbers are encrpyted by multiplication with a fixed 5x5 encryption matrix M:
e=[M ]∗n
where "e" is a vector containing the encrypted numbers.
Given
e = [19, 3 , 6 ,11 , 23 ]
and
M=[3...