diff --git a/php/classes/WebServer.php b/php/classes/WebServer.php
index 3c05fce..0bae591 100644
--- a/php/classes/WebServer.php
+++ b/php/classes/WebServer.php
@@ -5,6 +5,9 @@
 * 
 *   @version $Id: WebServer.php 2968 2015-06-29 13:17:00Z natacha $ 
 */
+
+require_once '../config.php';
+
 class WebResultMgr
 {
   private $resDOM;
@@ -83,7 +86,6 @@ class WebServer
   private $wsUserMgr;
   private $resultMgr, $myParamsInfoMgr;
   private $dataFileName;
-  private $timeLimitQuery; // Time interval between 2 queries before to ask for a new authentification, in seconds.
 
   function __construct() {
     $this->userID  = 'impex';
@@ -91,7 +93,6 @@ class WebServer
     $this->sessionID = $this->userID;
     $this->myParamsInfoMgr =  new ParamsInfoMgr();
     $this->resultMgr = new WebResultMgr();
-	$this->timeLimitQuery = 30;
   }
  
   protected function init($data) {
@@ -551,7 +552,8 @@ class WebServer
 
   public function getNewToken() {
 	  $timeStamp = (new DateTime())->getTimestamp();
-	  $newToken = md5((int)($timeStamp/30));
+	  // generate token from timeStamp and some salt
+	  $newToken = md5(1321 * (int)($timeStamp/timeLimitQuery));
   	return array('success' => true, 'token' => $newToken);
   }
 
diff --git a/php/config.php b/php/config.php
index 9400594..3cd931a 100644
--- a/php/config.php
+++ b/php/config.php
@@ -118,6 +118,9 @@ $SERVER_NAME =  $_SERVER['SERVER_NAME'] ? $_SERVER['SERVER_NAME'] : gethostname(
 
 define('webAlias',"http://".$SERVER_NAME.APACHE_ALIAS);
 define('wsdl_AMDA', webAlias."public/wsdl/Methods_AMDA.wsdl");
+
+// Time interval between 2 queries before to ask for a new authentification, in seconds.
+define ('timeLimitQuery', 600);
 /*-------------------END WEB SERVICES section ---------*/
 
 // AKKA - KERNELBIN is now the new kernel bin dir
diff --git a/php/rest/auth.php b/php/rest/auth.php
index 515a2ce..da2f819 100644
--- a/php/rest/auth.php
+++ b/php/rest/auth.php
@@ -12,7 +12,7 @@
   require_once '../config.php';
 
   $amda_ws = new WebServer();
-  $result = $amda_ws->auth($_GET);
+  $result = $amda_ws->getNewToken($_GET);
 
  if ($result['success']){
 	 echo $result['token'];
--
libgit2 0.21.2