On Wed 04/06/2025 14:25, Christoph Liebender wrote:
> Am 03.06.25 um 15:53 schrieb Christoph Liebender:
> > I will probably submit a PR to upstream that disables this test on
> > OpenBSD altogether, when I find time...
> 
> Upstream was very responsive and integrated that into 10.4.2.
> 
> > In any case, comments w.r.t. the --tls-ech-enable feature are welcome.
> 
> Which is supposed to mean that I cannot make this work on my setup, and
> right now I am not sure whether it is due to an upstream bug, packaging bug
> or issue with my setup. Can ECH be considered a niche feature anyway? If so,
> it might also make sense to not use aws-lc-rs as a crypto provider and fall
> back to native TLS at some point.

I'm far from being an expert here, so there are multiple options for me
to be wrong:
- ECH uses Hybrid Public Key Encryption
- HPKE is provided by aws-lc-rs
- On OpenBSD, aws-lc-rs is not used. Instead ring is used as backend
  [0].

Long story short, no ECH with wstunnel on OpenBSD.

[0] 
https://github.com/erebe/wstunnel/blob/eba8f8609423c3d4afc155cf2989cef72242e3eb/Cargo.toml#L64-L72

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