code: function genPass(opts, cb) {
      // generate a 10-bytes password
      crypto.randomBytes(10, function(err, buffer) {
        if (buffer) {
          opts.password = buffer.toString("base64");
        }
        cb(err, opts);
      });
    }
docs: Generates a new password
  
  @api private
  @param {Object} opts The options (where the new password will be stored)
  @param {Function} cb The callback