TL;DR: If you need one earlier than we build one - feel free to build your own, we’re happy to help!

(Long boring manager answer ahead)

Themis feature changes are driven by two main drivers:

• our own internal needs - Themis is baseline component in all our products. In this regard - as soon as any of our tools require C#/NET API (that’s typically customer-driven), there will be a C# API. This general vector has been outlined in docs in couple of places, I believe.
• open source contributions - anyone is welcome to build/improve wrappers, we are happy to help do that properly.

In fact, MS ecosystem has some love already - Themis builds on Windows well (I suspect all infra for that will surface in upcoming releases), one of our customers uses it, but via NodeJS + Electron bindings, but this might not be very helpful if you want C# one.

@dodikk thank you for the question! do you have some specific needs for Themis on C#?

@dodikk thank you for the question! do you have some specific needs for Themis on C#?

That's a mobile app built with xamarin which obviously needs some security improvements.
The back end might migrate to ASP.NET web API some day, so server side .NET has a lower priority so far (for my case).

FYI: Here is a proof of concept for xamarin which adds themis as binding projects.
https://github.com/dodikk/themis-xamarin-prototype

P.S. An example for cross-platform code (Xamarin.Forms or .NET Standard) will follow soon in that repo. And some slightly more beautiful interfaces too.
P.P.S. No plans for maintaining a nuget package yet.

wow, that's something very special. Thank you, @dodikk! We'll take a look

P.S. An example for cross-platform code (Xamarin.Forms or .NET Standard) will follow soon in that repo. And some slightly more beautiful interfaces too.

Done for a subset of TSCellSeal / SecureCell API.

@vixentael here is another demo for the .net MAUI toolchain.
https://github.com/dodikk/themis-maui-prototype

I hope it might be used as a step towards your C#/.net related guides and docs some day.

P.S. Around 2024 microsoft is going to deprecate xamarin so MAUI will be their main mobile framework.