I need to have a program that decrypts the cipher text from the code below. The code needs to be in python. The only function of this program will be to decrypt the cipher text and output the original message. Will need to retrieve the cipher text from user then convert the cipher text back to plain text.

Below is the python3 code for mentioned problem statement:

import random def primeNumberChecker(num): if num > 1: for i in range(2, num): if (num % i) == 0: return False break else: return True else: return False def gcd(a, b): while b != 0: a, b = b, a % b return a #Euclid's extended algorithm for finding the multiplicative inverse of two numbers def multiplicative_inverse(e, phi): d = 0 x1 = 0 x2 = 1 y1 = 1 temp_phi = phi while e > 0: temp1 = temp_phi // e temp2 = temp_phi - temp1 * e temp_phi = e e = temp2 x = x2 - temp1 * x1 y = d - temp1 * y1 x2 = x1 x1 = x d = y1 y1 = y if temp_phi == 1: return d + phi def generate_keypair(p, q): n = p * q # Phi is the totient of n phi = (p - 1) * (q - 1) # Choose an integer e such that e and phi(n) are coprime 1