I have a .net windows application in which I am using dotfuscator to prevent reverse engineering. So my dll's are protected. The new requirement was to sign the dll's. But when I do sign the dll, my signing does not happen when I do dotfuscation where as when I remove the dlls from dotfuscated xml, then the digital signing of dlls happens. Any idea or solution how I can tackle this problem
Dotfuscator works by disassembling and re-assembling your assemblies (.dll files). You will need to re-sign your assemblies after Dotfuscator re-assembles them.
If you're using Dotfuscator Professional, Dotfuscator can do some of this signing automatically. See the User Guide for instructions to re-apply Authenticode signing and Strong Name signing.
If you're using the free Dotfuscator Community included with Visual Studio, you will need to re-sign your assemblies using tools like signtool and sn.
(I am a developer on the Dotfuscator team and am answering this question in that capacity.)