Retrieve remote static key?

[CertainLach]

How can I get other party static key (for authentication) while using X patterns?

This method exists in other noise protocol implementations, but I can't find it in this one.

https://docs.rs/snow/latest/snow/struct.HandshakeState.html#method.get_remote_static
https://docs.rs/noise-protocol/0.2.0/noise_protocol/struct.HandshakeState.html#method.get_rs

[jmlepisto]

Thanks for pointing this out! Clatter is definitely missing this feature.

I'm just finishing up other changes for v1.1.0 so you can expect a fix for this also in a few days :)

[CertainLach]

Remote ephemeral key would also be useful for noise pipe implementation (However, I'm not sure if it is already possible to implement noise pipe here?)

[david415]

How can I get other party static key (for authentication) while using X patterns?

This method exists in other noise protocol implementations, but I can't find it in this one.

https://docs.rs/snow/latest/snow/struct.HandshakeState.html#method.get_remote_static https://docs.rs/noise-protocol/0.2.0/noise_protocol/struct.HandshakeState.html#method.get_rs

This feature is absolutely required for anything I would do with Noise.
Wait wait wait... actually ACTUALLY is it even possible to perform authentication without this feature!?

[CertainLach]

Wait wait wait... actually ACTUALLY is it even possible to perform authentication without this feature!?

You can pre-share static key and use K pattern instead of X as the form of authn. Wireguard does that (Noise_IK)

[david415]

Wait wait wait... actually ACTUALLY is it even possible to perform authentication without this feature!?

You can pre-share static key and use K pattern instead of X as the form of authn. Wireguard does that (Noise_IK)

Okay that makes sense. I'm very biased here because my mixnet project, Katzenpost has been using Noise XX variations for many years now.

[jmlepisto]

Sorry for the wait! I got sidetracked by Nyquist interoperability testing which proved to be unexpectedly difficult with some findings. Anyway, the changes are now in and I'm going to bake a new release very soon.