//This is a very specific password cracker for bcrypt.
//It cracks from 0A0 to 99z999 and thus is probably useless for you.
//Made for https://redd.it/4dqeyz
var util=require("util");
var bcrypt=require("bcrypt");
var cluster=require("cluster");
var numCPUs=require("os").cpus().length;;

var charset="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz".split("");
var hash="$2a$10$Cv/hHXntAbMoFbZ9.fFNbeNdi26sc15eo04ruHTfk8xhuza88.xq6";
var id=0;
var last=null;

charset=charset.reverse().join("");

//The master process needs to do different stuff
if(cluster.isMaster)
{
	var childs=[];
	var hashes=[];
	var count=0;
	var total=0;
	var start=Date.now();
	//spawn one slave for each CPU code in our system.
	for (var i = 0; i < numCPUs; i++)
	{
		childs.push(cluster.fork());
	}
	//display stats once a second
	setInterval(function(){
		//clears screen and moves cursor to top left
		util.print("\u001b[2J\u001b[0;0H");
		console.log("H/s",count);
		console.log("Total",total);
		console.log("Runtime:",((Date.now()-start)/1000)|0,"sec");
		hashes.forEach(function(v,i){
			console.log(i,v);
		});
		count=0;
	},1000);
	//hook to message events from children
	childs.forEach(function(v,i){
		v.on("message",function(m)
		{
			if(m.msg==="count")
			{
				++count;
				++total;
			}
			hashes[i]=m.hash;
		});
	});
}
else if(cluster.isWorker)
{
	id=cluster.worker.id;
	console.log(id,"started");
	//counts down from 99 to 0 (1st part of password)
	for(var i=99;i>=0;i--)
	{
		//counts down all possible letters (2nd part of password)
		for(var k=0;k<charset.length;k++)
		{
			//counts down from 999 to 0 (3rd part of password)
			//here we don't subtract only one and we have different starting values.
			//Each slave will thus have a different password to test
			for(var j=999-id;j>=0;j-=numCPUs)
			{
				//if the password is correct, print it and then exit
				if(bcrypt.compareSync(i+charset[k]+j,hash))
				{
					console.log("DONE! Password:",i+charset[k]+j);
					process.exit();
				}
				process.send({msg:"count",hash:i+charset[k]+j});
			}
		}
	}
}