From 1ba024df94e920bd8f1bd9b945a6fdfdedce8cd4 Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@gmail.com>
Date: Thu, 17 Feb 2022 22:50:56 -0600
Subject: [PATCH] Crypt/Base: use sodium_increment in _increment_str

---
 phpseclib/Crypt/Base.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/phpseclib/Crypt/Base.php b/phpseclib/Crypt/Base.php
index 287b9fc9..aca2554d 100644
--- a/phpseclib/Crypt/Base.php
+++ b/phpseclib/Crypt/Base.php
@@ -2007,6 +2007,11 @@ class Crypt_Base
      */
     function _increment_str(&$var)
     {
+        if (function_exists('sodium_increment')) {
+            sodium_increment($var);
+            return;
+        }
+
         for ($i = 4; $i <= strlen($var); $i+= 4) {
             $temp = substr($var, -$i, 4);
             switch ($temp) {