diff -r 6edc6ebb3b39 -r d0fe7acaf0e8 plugins/yubikey/auth.php
--- a/plugins/yubikey/auth.php	Thu Feb 26 01:19:45 2009 -0500
+++ b/plugins/yubikey/auth.php	Thu Feb 26 11:30:17 2009 -0500
@@ -1,5 +1,8 @@
 <?php
 
+if ( getConfig('yubikey_enable', '1') != '1' )
+    return true;
+
 // hook into auth
 $plugins->attachHook('login_process_userdata_json', 'return yubikey_auth_hook_json($userinfo, $req["level"], @$req["remember"]);');
 // hook into special page init
@@ -189,6 +192,9 @@
   global $db, $session, $paths, $template, $plugins; // Common objects
   global $lang;
   
+  if ( getConfig('yubikey_enable', '1') != '1' )
+    return true;
+  
   $paths->add_page(array(
       'name' => $lang->get('yubiauth_specialpage_yubikey'),
       'urlname' => 'Yubikey',