[System] Replace NetworkCredential with referencesource

Fixes an issue where the Mono implementation wasn't converting
between the SecureString and the plaintext version of the password.

Fixes https://bugzilla.xamarin.com/show_bug.cgi?id=44109

1 files changed, 16 insertions, 0 deletions

diff --git a/mcs/class/System/Test/System.Net/NetworkCredentialTest.cs b/mcs/class/System/Test/System.Net/NetworkCredentialTest.cs
index dbe3255cd68..e5c46f8f901 100644
--- a/mcs/class/System/Test/System.Net/NetworkCredentialTest.cs
+++ b/mcs/class/System/Test/System.Net/NetworkCredentialTest.cs
@@ -28,6 +28,7 @@
 
 using System;
 using System.Net;
+using System.Security;
 
 using NUnit.Framework;
 
@@ -99,6 +100,21 @@ namespace MonoTests.System.Net {
 			nc = new NetworkCredential ("user", "********", "dom");
 			CheckCustom (nc);
 		}
+
+		[Test]
+		public void DecipherSecureString ()
+		{
+			// many code snippets suggest using the following to get the decrypted string from a SecureString
+			var ss = new SecureString ();
+			ss.AppendChar('h');
+			ss.AppendChar('e');
+			ss.AppendChar('l');
+			ss.AppendChar('l');
+			ss.AppendChar('o');
+ 
+			string plain = new NetworkCredential (string.Empty, ss).Password;
+			Assert.AreEqual ("hello", plain);
+		}
 	}
 }