Add hash in configuration

application/config/aauth.php

@@ -115,7 +115,9 @@ $config_aauth["default"] = array(
 
 	'verification'                   => false,
 	'verification_link'              => '/account/verification/',
-	'reset_password_link'            => '/account/reset_password/'
+	'reset_password_link'            => '/account/reset_password/',
+
+	'hash'							 =>	'sha256'
 );
 
 $config['aauth'] = $config_aauth['default'];

application/libraries/Aauth.php

@@ -1145,7 +1145,7 @@ class Aauth {
 	function hash_password($pass, $userid) {
 
 		$salt = md5($userid);
-		return hash('sha256', $salt.$pass);
+		return hash($this->config_vars['hash'], $salt.$pass);
 	}
 
 	########################