var crypto = require('crypto')
  , moment = require('moment')

exports.getKey = function () {
  var key = ''
    , length = 18
    , current_date = moment().unix().toString()
    , random = Math.random().toString()

  key = crypto.createHash('sha1').update(current_date + random).digest('hex');


  return key.slice(1, length);
};