From 5d9fa0fb6ee9838e5742e629926e5f7c29bfbe56 Mon Sep 17 00:00:00 2001
From: Tal Aloni <tal.aloni.il@gmail.com>
Date: Thu, 2 Mar 2017 15:27:37 +0200
Subject: [PATCH] IndependentNTLMAuthenticationProvider: Set KeyExchange NTLM
 flag if client request it

---
 .../NTLM/IndependentNTLMAuthenticationProvider.cs           | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/SMBLibrary/Authentication/NTLM/IndependentNTLMAuthenticationProvider.cs b/SMBLibrary/Authentication/NTLM/IndependentNTLMAuthenticationProvider.cs
index b962f1b..2a5a198 100644
--- a/SMBLibrary/Authentication/NTLM/IndependentNTLMAuthenticationProvider.cs
+++ b/SMBLibrary/Authentication/NTLM/IndependentNTLMAuthenticationProvider.cs
@@ -105,6 +105,12 @@ namespace SMBLibrary.Authentication.NTLM
                     challengeMessage.NegotiateFlags |= NegotiateFlags.Use128BitEncryption;
                 }
             }
+
+            if ((negotiateMessage.NegotiateFlags & NegotiateFlags.KeyExchange) > 0)
+            {
+                challengeMessage.NegotiateFlags |= NegotiateFlags.KeyExchange;
+            }
+
             challengeMessage.TargetName = Environment.MachineName;
             challengeMessage.ServerChallenge = serverChallenge;
             challengeMessage.TargetInfo = AVPairUtils.GetAVPairSequence(Environment.MachineName, Environment.MachineName);