diff -r 7a7a8b800fa4 -r 053de9a4e738 web/event_list.php
--- a/web/event_list.php	Mon Nov 25 18:54:00 2013 +0100
+++ b/web/event_list.php	Mon Nov 25 19:06:54 2013 +0100
@@ -6,8 +6,8 @@
 
 if(isset($_REQUEST['delete']) && !empty($_REQUEST['delete'])) {
 	$delete_enc = base64_decode($_REQUEST['delete']);
-	$iv = substr($delete_enc, 0, openssl_cipher_iv_length('aes256'));
-	$delete_dec = openssl_decrypt(substr($delete_enc, openssl_cipher_iv_length('aes256')), 'aes256', hash('sha256', SECRET, true), 0, $iv);
+	$iv = substr($delete_enc, 0, $C_openssl_cipher_iv_length);
+	$delete_dec = openssl_decrypt(substr($delete_enc, $C_openssl_cipher_iv_length), 'aes256', hash('sha256', SECRET, true), 0, $iv);
 	if(is_file($dir."/".$delete_dec)) {
 		unlink($dir."/".$delete_dec);
 	}
@@ -96,7 +96,7 @@
 		<ul class="event-list">
 		<?php
 		$files = scandir($dir);
-		$iv = openssl_random_pseudo_bytes(openssl_cipher_iv_length('aes256'));
+		$iv = openssl_random_pseudo_bytes($C_openssl_cipher_iv_length);
 		
 		foreach($files as $ind_file) {
 			if (stripos($ind_file, '.') !== 0) {