From 8f31e59efaaa0de31449d97e4470cb5d3bc09c81 Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@gmail.com>
Date: Sat, 20 Mar 2021 06:00:23 -0500
Subject: [PATCH 1/2] ...

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

diff --git a/phpseclib/Crypt/Common/SymmetricKey.php b/phpseclib/Crypt/Common/SymmetricKey.php
index c56d44b3..7281d00f 100644
--- a/phpseclib/Crypt/Common/SymmetricKey.php
+++ b/phpseclib/Crypt/Common/SymmetricKey.php
@@ -2447,6 +2447,8 @@ abstract class SymmetricKey
                         self::MODE_STREAM => MCRYPT_MODE_STREAM,
                     ];
 
+                    set_error_handler(function() {});
+
                     $this->demcrypt = mcrypt_module_open($this->cipher_name_mcrypt, '', $mcrypt_modes[$this->mode], '');
                     $this->enmcrypt = mcrypt_module_open($this->cipher_name_mcrypt, '', $mcrypt_modes[$this->mode], '');
 
@@ -2456,6 +2458,8 @@ abstract class SymmetricKey
                     if ($this->mode == self::MODE_CFB) {
                         $this->ecb = mcrypt_module_open($this->cipher_name_mcrypt, '', MCRYPT_MODE_ECB, '');
                     }
+
+                    restore_error_handler();
                 } // else should mcrypt_generic_deinit be called?
 
                 if ($this->mode == self::MODE_CFB) {

From 78364b0127ae773e220ddd23d2f99ff6c35faee5 Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@gmail.com>
Date: Sat, 20 Mar 2021 06:09:38 -0500
Subject: [PATCH 2/2] ...

---
 phpseclib/Crypt/Common/SymmetricKey.php | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/phpseclib/Crypt/Common/SymmetricKey.php b/phpseclib/Crypt/Common/SymmetricKey.php
index 7281d00f..605458e0 100644
--- a/phpseclib/Crypt/Common/SymmetricKey.php
+++ b/phpseclib/Crypt/Common/SymmetricKey.php
@@ -2436,6 +2436,8 @@ abstract class SymmetricKey
             case self::ENGINE_MCRYPT:
                 $this->enchanged = $this->dechanged = true;
 
+                set_error_handler(function() {});
+
                 if (!isset($this->enmcrypt)) {
                     static $mcrypt_modes = [
                         self::MODE_CTR    => 'ctr',
@@ -2447,8 +2449,6 @@ abstract class SymmetricKey
                         self::MODE_STREAM => MCRYPT_MODE_STREAM,
                     ];
 
-                    set_error_handler(function() {});
-
                     $this->demcrypt = mcrypt_module_open($this->cipher_name_mcrypt, '', $mcrypt_modes[$this->mode], '');
                     $this->enmcrypt = mcrypt_module_open($this->cipher_name_mcrypt, '', $mcrypt_modes[$this->mode], '');
 
@@ -2459,12 +2459,14 @@ abstract class SymmetricKey
                         $this->ecb = mcrypt_module_open($this->cipher_name_mcrypt, '', MCRYPT_MODE_ECB, '');
                     }
 
-                    restore_error_handler();
                 } // else should mcrypt_generic_deinit be called?
 
                 if ($this->mode == self::MODE_CFB) {
                     mcrypt_generic_init($this->ecb, $this->key, str_repeat("\0", $this->block_size));
                 }
+
+                restore_error_handler();
+
                 break;
             case self::ENGINE_INTERNAL:
                 $this->setupKey();