Re: BUG #17760: SCRAM authentication fails with "modern" (rsassaPss signature) server certificate

From: "Gunnar \"Nick\" Bluth" <gunnar(dot)bluth(at)pro-open(dot)de>
To: pgsql-bugs(at)lists(dot)postgresql(dot)org
Subject: Re: BUG #17760: SCRAM authentication fails with "modern" (rsassaPss signature) server certificate
Date: 2023-01-31 12:27:59
Message-ID: e0504455-25b3-3b1d-08c0-f3e28f78a545@pro-open.de
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Am 25.01.23 um 12:32 schrieb PG Bug reporting form:

> I have to say that I'm not all too deep into crypto stuff. I couldn't even
> tell how to create one such certificate, let alone what that PSS stuff is
> all about ;-/
>
> Maybe this is even fixed with recent OpenSSL versions (client has 1.1.1f,
> Ubuntu 20.04)? Though that line was introduced in 2010...
>
> I do think however that this is an oversight on our side and has to be
> addressed. If not in code, the docs should point out that certain server
> certificate types (PSS) may not work with SCRAM auth (or libpq needs to be
> compiled against a minimum version of OpenSSL, if that's the root cause).

Nobody willing to enlighten me on this one? :(

--
Gunnar "Nick" Bluth

Eimermacherweg 106
D-48159 Münster

Mobil +49 172 8853339
Email: gunnar(dot)bluth(at)pro-open(dot)de
__________________________________________________________________________
"Ceterum censeo SystemD esse delendam" - Cato

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