Binary Level

binary-100.cpp

#include<iostream>
#include<cstring>
#include<cstdlib>
#include<ctime>
using namespace std;
int check(char*);
char* md5_custom(char*);
main(int argv,char **argc)
{		
	if(argv >3)
	{	
		srand(time(NULL));
		int size = argv<<3 , select = rand() % (argv-1) +1 ;
		char password[size] ; 
		char *size_pass = password  ;
		char *check_pass = size_pass + sizeof(password) ; 
		*check_pass = '0'; 
		strcpy(password,argc[select]); 

		if (check(md5_custom( password))) 
			*check_pass = '1' ;
	
		if(*check_pass == '1') 
			cout<<" ####################  is the password ! . Good Job ! "<<endl;
		else 
			cout<<"Md5-custom Trolls ! Collide the 3 millionth one ! "<<endl; 
	}	
	else
	{
		cout<<"  I Want More Passwords !!!"<<endl ;
	}	
}

char* md5_custom(char* password)
{ 
	// Here comes a large code that calculates '  md5(password)   '
	// return the hash ;
}

int check(char* hash)
{
	 for(int i = 0 ; i < 32 ; i++)
	 { 
		 if(hash[i] != "f2332291a6e1e6154f3cf4ad8b7504d8"[i])
		 	return 0 ;
	 }
	 return 1 ;
}