Commented Unassigned: Improvement for signing with PFX files & WPF problems [15]

Hi there! :)
Congratulations for your Project! :)
I am trying to obfuscate a WPF app and apart from the problems that I will mention at the end, I have an improvement that will allow signing with PFX files. Here is the improvement:

Project.cs, Line 118 (replaced old code with this and added a "PfxPsw" element in the configuration XML)

```

} else {
try
{
var keyFile = vars.GetValue("KeyFile", null);
var bytes = File.ReadAllBytes(keyFile);
var ext = Path.GetExtension(keyFile);
if (ext!=null && ext.ToLower() == ".pfx")
{
bytes = Pfx2Snk(bytes, vars.GetValue("PfxPsw", null));
}
else
{
}
keyvalue = CryptoConvert.FromCapiKeyBlob(bytes);
} catch (Exception ex) {
throw new ObfuscarException (String.Format ("Failure loading key file \"{0}\"", vars.GetValue ("KeyFile", null)), ex);
}
```
```
/// <summary>
/// Converts .pfx file to .snk file.
/// </summary>
/// <param name="pfxData">.pfx file data.</param>
/// <param name="pfxPassword">.pfx file password.</param>
/// <returns>.snk file data.</returns>
public static byte[] Pfx2Snk(byte[] pfxData, string pfxPassword)
{
// load .pfx
var cert = new X509Certificate2(pfxData, pfxPassword, X509KeyStorageFlags.Exportable);

// create .snk
var privateKey = (RSACryptoServiceProvider)cert.PrivateKey;
return privateKey.ExportCspBlob(true);
}
```



Now to the WPF problems:
I use this XML configuration that should not change the assemblies at all:

```
<?xml version='1.0'?>
<Obfuscator>
<Var name="InPath" value="C:\Users\Me\" />
<Var name="OutPath" value="$(InPath)\Obfuscar_Output" />

<Var name="MarkedOnly" value="true" />
<Var name="KeepPublicApi" value="true" />
<Var name="HidePrivateApi" value="false" />
<Var name="ReuseNames" value="false" />
<Var name="HideStrings" value="false" />
<Var name="OptimizedMethods" value="false" />
<Var name="RenameProperties" value="false" />
<Var name="RenameEvents" value="false" />
<Var name="XmlMapping" value="true" />
<Var name="PfxPsw" value="myPfxPassword" />
<Var name="KeyFile" value=".\Key.pfx" />

<Module file="$(InPath)\Dll1.dll" />
<Module file="$(InPath)\Dll2.dll" />
<Module file="$(InPath)\EXE1.exe" />
<Module file="$(InPath)\EXE2.exe" />
</Obfuscator>
```
However, when i start the WPF app, it crashes and in the event log I see this:

> Exception Info: System.Windows.Markup.XamlParseException
Stack:
at System.Windows.Markup.WpfXamlLoader.Load(System.Xaml.XamlReader, System.Xaml.IXamlObjectWriterFactory, Boolean, System.Object, System.Xaml.XamlObjectWriterSettings, System.Uri)
at System.Windows.Markup.WpfXamlLoader.LoadBaml(System.Xaml.XamlReader, Boolean, System.Object, System.Xaml.Permissions.XamlAccessLevel, System.Uri)
at System.Windows.Markup.XamlReader.LoadBaml(System.IO.Stream, System.Windows.Markup.ParserContext, System.Object, Boolean)
at System.Windows.Application.LoadComponent(System.Object, System.Uri)
at KEL_Building_Manager.App.Main()

Comments: Thanks. The PFX support is optional. You should import the PFX file using sn.exe in .NET SDK, (sn -i) http://msdn.microsoft.com/en-us/library/k5b5tt23(v=vs.110).aspx Then in Obfuscar configuration you can specify `KeyContainer` option to let Obfuscar use the key container to sign the assemblies. The password should never live in Obfuscar configuration file. About the XAML issue, can you share the binaries with me via support@lextm.com?