Index: branches/5.2.x/core/install/prerequisites.php
===================================================================
diff -u -N -r16432 -r16691
--- branches/5.2.x/core/install/prerequisites.php	(.../prerequisites.php)	(revision 16432)
+++ branches/5.2.x/core/install/prerequisites.php	(.../prerequisites.php)	(revision 16691)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: prerequisites.php 16432 2016-11-18 09:30:26Z alex $
+* @version	$Id: prerequisites.php 16691 2021-03-18 14:29:44Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -145,6 +145,9 @@
 			$ret['mysql'] = function_exists('mysqli_connect');
 			$ret['json'] = function_exists('json_encode');
 
+			// Unable to properly use "SecurityEncrypter::cipherAvailable" method, because no factory here.
+			$ret['openssl'] = function_exists('openssl_encrypt') && in_array('aes-128-cbc', openssl_get_cipher_methods(), true);
+
 			$output = shell_exec('java -version 2>&1');
 			$ret['java'] = stripos($output, 'java version') !== false;