Obfuscation/Hiding C# dll code

Good morning,

I am working on an C# application with Visual Studio 2017 and I have a question concerning the obfuscation process.

See below an explanation of what I would like to do :

I have a C# solution which generates a .dll file. I use this .dll file inside another project with using as a reference. Then I have some questions :

- With Visual Studio, with using "Object browser", each classes and functions of the dll are visible to anyone ; then my question is how to hide those informations ?

- Also, I have try to deassembly the .dll with a specific tool and I can see all the code ; then I would like to know how to hide the code. I have taken a look to the obfuscation process with Dotfuscator integrated directly in Visual but I need some help to use it because I didn't succeed to hide something.

Thank you in advance for any advice.

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Pusting6y ago
Basically, obfuscators will rename the private and/or internal members to something else and thus make it harder to read one's code.
However, there are obfuscators that can additionally change the control flow, replace your compiled CIL with functionally equivalent instructions that may cause some decompilers to break.

I have previously used Eazfuscator.NET:
https://www.gapotchenko.com/eazfuscator.net

Its older versions are free (I think the last one is 3.3).
However, those older versions don't work with .NET Core and .NET Standard.