LKBEN10808: Howto create an assembly key file with a strong name in .NET programming

This article has not been checked!

LKB | Created: 02/04/2020 | Version: 0 | Language: EN | Rating: 0 | Outdated: False | Marked for deletion: False

Author: Wim Peeters - Keskon GmbH & Co. KG


The strong name is used for uniqueness of the assembly and for security. It also makes shure that the right assembly gets loaded.


This is by design


Assemblies use a cryptographic signature (also call a strong name) to share an assembly among applications on the local machine.

Use the sn.exe tool to create a key file:
sn -k StrongNameFile.snk

If your path environment variables aren't set, you'll have to go to the C:\Program Files\Microsoft.NET\FrameworkSDK\Bin\ directory to run sn.exe)
The filename "StrongNameFile.snk" can be any name you want.

To use the key you can use the following in c# programming:
using System;
using System.Reflection;


For more information have a look at the microsoft SDK. (= software development kit)

About the Author

Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux in different European countries and different European languages. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform where he is one of the most important contributors and the main developer.


The information provided in this document is intended for your information only. Lubby makes no claims to the validity of this information. Use of this information is at own risk!