From 5a915391486ac96c7ef2f2f8ea9b0d80b3ade6c3 Mon Sep 17 00:00:00 2001
From: terrafrost <terrafrost@php.net>
Date: Mon, 29 Dec 2014 22:10:26 -0600
Subject: [PATCH] SSH2: rm unsupported algorithms if OpenSSL is being used

---
 phpseclib/Net/SSH2.php | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/phpseclib/Net/SSH2.php b/phpseclib/Net/SSH2.php
index a02c57d6..53b110d8 100644
--- a/phpseclib/Net/SSH2.php
+++ b/phpseclib/Net/SSH2.php
@@ -1091,7 +1091,9 @@ class Net_SSH2
         $identifier = 'SSH-2.0-phpseclib_0.3';
 
         $ext = array();
-        if (extension_loaded('mcrypt')) {
+        if (extension_loaded('openssl')) {
+            $ext[] = 'openssl';
+        } elseif (extension_loaded('mcrypt')) {
             $ext[] = 'mcrypt';
         }
 
@@ -1164,6 +1166,14 @@ class Net_SSH2
                  //'none'         // OPTIONAL          no encryption; NOT RECOMMENDED
             );
 
+            if (extension_loaded('openssl')) {
+                // OpenSSL does not support arcfour256
+                $encryption_algorithms = array_diff(
+                    $encryption_algorithms,
+                    array('arcfour256')
+                );
+            }
+
             if (phpseclib_resolve_include_path('Crypt/RC4.php') === false) {
                 $encryption_algorithms = array_diff(
                     $encryption_algorithms,