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Already Tried:
This is what I have so far (not sure if it is correct though):
#include <fstream>
#include <cstdlib>
#include <iostream>
#include <string>


using namespace std;




void encrypt ();
void decrypt ();

void main ()
{
char choice;
cout << "Do you want to encrypt or decrypt?" << endl;
cout << "Enter E for encrypt or D for decrypt:    ";
cin >> choice;

if (choice =='E')
    encrypt ();
else
    decrypt ();
}             & nbsp;                                           //good to this point

void encrypt ()
{
     ifstream sourceFile;
    ofstream encryptFile;
    string userFile;
    string tempFile;
    char randKey = rand();

    cout << "Please enter the name of the file you wish to encrypt: ";               //source1--need to check if exists
     cin >> userFile;
    sourceFile.open(userFile.c_str());
     cout << "Enter the name of the file you wish to store your encrypted file in: ";
     cin >> tempFile;
    &nb sp;encryptFile.open(tempFile.c_str());                                        //good to this point
     encryptFile << randKey;

     while (randKey ^ userFile)
     
     
}

                

void decrypt ()
{}