webD.js

/*  USAGE:
    node webD.js [dictionaryfile] [hashalgo]
*/

var crypto = require('crypto');
var fs = require('fs');

/* SETUP */
var target = 'xQj73CykeTXZoUXgeMxvh9IdBIk';

var header64 = 'eyJ1c2VyIjoiNDAwNDAwIn0';
var body64 = '1YljWG';

var encodeSecret = true;



var text = header64 + ':' + body64;
console.log("Text: "+text);

var b64 = function(s){
    return new Buffer(s).toString('base64').replace(/=/g, '');
};

var cryptAlgo = process.argv[3];

var dictionary = fs.readFileSync(process.argv[2]).toString().split('\n');

var hashes = dictionary.map(function(word){
    var word64 = (encodeSecret && b64(word)) || word;
    var hash = crypto.createHmac(cryptAlgo, word64).update(text).digest('base64').replace(/=/g, '');
    return (hash.slice(0, target.length) === target && hash) || false; 

}).filter(Boolean);

console.log(hashes);