Re: ecdh support causes unnecessary roundtrips

From: Daniel Gustafsson <daniel(at)yesql(dot)se>
To: Jacob Champion <jacob(dot)champion(at)enterprisedb(dot)com>
Cc: Andres Freund <andres(at)anarazel(dot)de>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Marko Kreen <markokr(at)gmail(dot)com>, Adrian Klaver <adrian(dot)klaver(at)gmail(dot)com>, Peter Eisentraut <peter_e(at)gmx(dot)net>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>
Subject: Re: ecdh support causes unnecessary roundtrips
Date: 2025-03-13 21:41:12
Message-ID: 1BD20EFE-D748-4E36-AC52-86267AB85B7A@yesql.se
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> On 13 Mar 2025, at 22:39, Jacob Champion <jacob(dot)champion(at)enterprisedb(dot)com> wrote:
>
> On Tue, Mar 4, 2025 at 4:05 PM Daniel Gustafsson <daniel(at)yesql(dot)se> wrote:
>>> On 4 Mar 2025, at 20:19, Daniel Gustafsson <daniel(at)yesql(dot)se> wrote:
>>> Thanks for the reminder, this is sitting on my must-have TODO for 18 and I
>>> agree that we should add x25519 to the default set.
>>
>> And to add some code for that proposal, the attached adds it to the default set.
>
> In mundane-annoyances news, LibreSSL apparently does not accept
> "x25519" and wants "X25519" instead. :D

OpenSSL 3.4 also doesn't like it and AFAICT neither does the upcoming 3.5, just
haven't had the cycles yet to ship out a new patch with all the time-consuming
testing it requires =)

--
Daniel Gustafsson

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