#ifndef SBUFFER_H
#define SBUFFER_H
#include <iostream>
#include <fstream>
#include "buffer04.h"

using namespace std;


class SecureBuffer: public Buffer{// inherits many goodies from Buffer
 public:
   void encrypt(Buffer& key);
   SecureBuffer(char* cp, Buffer& key): Buffer(cp){encrypt(key);}
   SecureBuffer():Buffer(){}//empty buffer 
};


void SecureBuffer::encrypt(Buffer& id)
{
	const int key = 119; const int key2=5;
	for(int i = 0; i < 8; i++)
	{
		const int p=buffer[i];// p stands for 'power'
		int e=id[i];

		for(int j=1; j<=p; j++)
			e = char(key*e+key2+i);

		buffer[i]= e;

	}
	return;
}
//ToBeDone: should also encrypt the length of the buffered data!

#endif