Just a minor update.

You can find code-signed versions of each component in their respective nugets or installers:

Kerberos.NET: https://www.nuget.org/packages/Kerberos.NET

The DLLs are code signed!

Bruce: https://www.nuget.org/packages/Bruce

Kerberos Extension for Fiddler: https://github.com/dotnet/Kerberos.NET/releases/tag/v4.5.45

And the installer is also code-signed!