Using Babel Obfuscator in a multi-DLL setup

Using Babel Obfuscator for .NET, the basic approach to proper obfuscation of a yFiles WPF-powered application that has a multi-DLL setup with the yFiles WPF Algorithms DLL and your application's primary DLL is as follows:

• do not merge the yFiles WPF Algorithms assembly with any other assembly
• use an XML rules file to ensure that all yFiles public parts are obfuscated by Babel Obfuscator for .NET
• let Babel Obfuscator produce an XML map file from the yFiles obfuscation
• use this XML map file when obfuscating your primary application assembly

The contents of the XML rules file:

<?xml version="1.0" encoding="utf-8"?>
<!-- publicRules.xml -->
<Rules version="2.0">
  <Rule name="Obfuscate public" exclude="false">
    <Access>Public</Access>
    <Pattern isRegEx="false">*</Pattern>
    Obfuscate all public symbols.
  </Rule>
</Rules>

The yFiles WPF Algorithms assembly is obfuscated as follows, producing a map file:

babel.exe yWorks.yFilesWPF.Algorithms.dll --rules publicRules.xml --mapout yWorks.yFilesWPF.Algorithms.dll.map.xml

Using the XML mapping file generated above, your application's primary assembly is then obfuscated as follows:

babel.exe MyApplication.dll --mapin yWorks.yFilesWPF.Algorithms.dll.map.xml

This process is documented on page 118 of the Babel Obfuscator User's Guide [PDF].