Hi Christoph,

On 1/10/26 00:42, Christoph via dnsdist wrote:
someone reached out to us and asked whether we could support
post-quantum safe TLS 1.3 options on our public resolvers.

Since most browsers have support for X25519MLKEM768
https://developers.cloudflare.com/ssl/post-quantum-cryptography/pqc- support/
and openssl 3.5 in debian stable supports it,
I was wondering how to enable it in dnsdist
but I didn't find any parameter in addDOHLocal()
to configure ECDHE curves?
https://www.dnsdist.org/reference/config.html#addDOHLocal

Is this currently supported?

I don't think we have any way to configure this today, no. I opened an issue [1] on our bug tracker. If it's as easy as it seems to be I would be ready to backport this change to 2.0.x.

[1]: https://github.com/PowerDNS/pdns/issues/16715

Best regards,

--
Remi Gacogne
PowerDNS.COM BV - https://www.powerdns.com/

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