kangana/application/config/auth.php.example

<?php defined('SYSPATH') OR die('No direct access allowed.');

return array(

	'driver'       => 'File',
  'users'        => array(
      'admin' => 'password-hash'
      // generate the hash using hash_hmac('sha256', $str, "hashing_key")
  ),
	'hash_method'  => 'sha256',
	'hash_key'     => "hashing_key",
	'lifetime'     => 1209600,
	'session_key'  => 'auth_user',

);