Handle label prefix

Author: Steve Syfuhs

Samples/KerbDumpCore/MessageTreeView.cs

@@ -144,12 +144,26 @@ item.OwnerItem is ToolStripItem parentItem &&
                 }
             }
 
-            if (!string.IsNullOrWhiteSpace(text) && text.StartsWith("Data = "))
+            if (!string.IsNullOrWhiteSpace(text))
             {
-                text = text["Data = ".Length..];
+                foreach (var prefix in LabelPrefixes)
+                {
+                    if (text.StartsWith(prefix))
+                    {
+                        text = text[prefix.Length..];
+                        break;
+                    }
+                }
             }
         }
 
+        private static readonly IEnumerable<string> LabelPrefixes = new[]
+        {
+            "Data = ",
+            "Value = ",
+            "Cipher = "
+        };
+
         private void OnClickDecodeAsAdWin2kPac(object sender, EventArgs e)
         {
             ParseNode(sender, out string text, out TreeNode parentNode);