From 9fae7ec89d9c28b5f35911a78ef3775b79ca2e47 Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@gmail.com>
Date: Wed, 13 Jul 2022 09:06:33 -0500
Subject: [PATCH] RSA: loading keys could error out if xml extension wasn't
 installed

---
 phpseclib/Crypt/RSA.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/phpseclib/Crypt/RSA.php b/phpseclib/Crypt/RSA.php
index 03022492..b0211994 100644
--- a/phpseclib/Crypt/RSA.php
+++ b/phpseclib/Crypt/RSA.php
@@ -1470,6 +1470,10 @@ class Crypt_RSA
             // http://en.wikipedia.org/wiki/XML_Signature
             case CRYPT_RSA_PRIVATE_FORMAT_XML:
             case CRYPT_RSA_PUBLIC_FORMAT_XML:
+                if (!extension_loaded('xml')) {
+                    return false;
+                }
+
                 $this->components = array();
 
                 $xml = xml_parser_create('UTF-8');