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Salsa20 and Poly1305

See original GitHub issue

I’m putting together a .NET Core Discord client, and the voice connection requires raw opus stream encoded using xsalsa_poly1305.

https://discordapp.com/developers/docs/topics/voice-connections

Not being a crypto guy myself, I am new to NaCl, libsodium, etc, and have stupid questions to ask:

what is xsalsa_poly1305?
can I utilize it using NSec?

😅

Issue Analytics

State:
Created 6 years ago
Comments:5 (3 by maintainers)

Top GitHub Comments

1reaction

ektrahcommented, Oct 12, 2017

NSec is very cutting-edge and uses C# features that still haven’t been announced officially. It looks like they’ll come with .NET Core 2.1/Visual Studio 15.5 release, though. I expect a big reveal at the upcoming connect(); in November. It’s pretty cool!

Until then, there is not really much to do. The actual crypto algorithms are already implemented; NSec relies on libsodium for this. What NSec does is provide fast, usable C# APIs. Most of these are in place already as well; only a few algorithms haven’t been designed an API yet. This includes the xsalsa20_poly1305 algorithm referenced by the Discord spec. I haven’t decided yet how I want to expose it, since it doesn’t seem to have caught on much compared to the standardized AES-GCM and ChaCha20-Poly1305 AEAD constructions.

If you’re willing to experiment with the .NET Core 2.1 alpha bits and accept APIs breaking a bunch of times, I could cook something up quickly to get you started with the Discord spec. Ping me at contact@nsec.rocks.

0reactions

ektrahcommented, Apr 7, 2018

Added to NSec.Experimental in e3723cfa7d109809417d9f3b39aa01fe794c2354

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