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Binary code decryption

peter9567 (2)
Hello! : )

I am C++ beginner, and i want to write a program that will read a text from a file turn it into a binary code, and save it into the other file. Then my program should generate a password(save it into a second file), ask the user for it and if its good decrypt the binary code file.

Everything work perfect, except decryption. I have no idea how to decrypt my file, and i need help. Sholud I change my encryption method or is it possible to do this my way ? 


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  // 
// doc..

#include <iostream>
#include <iomanip>
#include <fstream>
#include <string>
#include <ctime>
#include <bitset>
using namespace std;

void chartobinary(char);
void decryption(char);
void passwordgenerator(int[]);

ofstream saveresult; // 1* 

int main()
{
	char ch,ch1;
	int i = 0, y=0, p=0,g;
	int x[5], ans[5], ans1[5];
	srand(time(NULL));

	saveresult.open("C:\\Users\\Piotr\\Desktop\\saveresult.txt"); 

	// Read text from a file 
	ifstream encrypt;
	encrypt.open("C:\\Users\\Piotr\\Desktop\\Enigma.txt");
	if (encrypt.is_open())
	{	
		while (!encrypt.eof())
		{			
			encrypt.get(ch);    
			chartobinary(ch); 
			i++;
		}
		encrypt.close();
	}
	else
	{
		cout << "Unable to open file " << endl;
	}	
	
	passwordgenerator(x);
	saveresult.close();
	cout << endl;
	cout << "If you want to decrypt this file you need a password: " <<    endl;
	for (int p = 0;p < 5;++p)
	{
		cin >> ans[p];
	}
	
	ifstream pass;
	pass.open("C:\\Users\\Piotr\\Desktop\\password.txt");
	if (pass.is_open())
	{
		while (pass.good())
		{
			pass >> ans1[y];			
			cout << ans1[y] << endl;
			y++;
		}
		pass.close();
	}

	if (x[0] == ans[0] && x[1] == ans[1] && x[2] == ans[2] && x[3] == ans[3] && x[4] == ans[4]) 
	{
		/*
		ifstream decryption;
		decryption.open("C:\\Users\\Piotr\\Desktop\\saveresult.txt");   
		if (decryption.is_open())
		{
			while (decryption.good())         // Here my program should decrypt file 
			{
				decryption.get(ch1);
				decryption1(ch1);
				p++;
			}
		}
		*/
	}
	else
	{
		cout << "Wrong password " << endl;
	}

	cout << endl;
	system("pause");
	return 0;
}

// Transfer characters into binary 
void chartobinary(char ch)
{
	for (int i = 7; i >= 0; --i)       // <-- THIS IS MY ENCRYPTION METHOD 
	{
       char x = putchar((ch & (1 << i)) ? '1' : '0'); 
	   saveresult << x;
	}
	putchar(' '); 
}

// Decryption function
void decryption1(char ch1) 
{
		for (int i = 0;i < 7;i++)
		{
			// < ==== ????

		}

}
// Password generator - five random numbers from 1 to 9
void passwordgenerator(int x[])
{ 	
	ofstream myfile("C:\\Users\\Piotr\\Desktop\\password.txt");
	if (myfile.is_open())
	{
		for (int i = 0; i < 5; ++i)
		{
			x[i] = (rand() % 9) + 1;
			myfile << x[i];
		}
		myfile.close();
	}
	else
	{
		cout << "Unable to create a file " << endl;
	}
}


Thanks for any help ! : )
peter9567 (2)
Thanks to "fun2code" my problem is solved, thank you very very much ! :)
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