Re: Making sslrootcert=system work on Windows psql

From: Christoph Berg <myon(at)debian(dot)org>
To: George MacKerron <george(at)mackerron(dot)co(dot)uk>
Cc: Daniel Gustafsson <daniel(at)yesql(dot)se>, Jacob Champion <jacob(dot)champion(at)enterprisedb(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Making sslrootcert=system work on Windows psql
Date: 2025-04-03 13:28:12
Message-ID: Z-6M7Dx7s6IX_ipL@msg.df7cb.de
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Re: George MacKerron
> (3) Any other ideas?

I'm not a fan of "security by adding more connection parameters".

What are the chances of making "use the system/os default CA store"
the default? "sslmode=require" would then already actually "require" a
certificate if I'm reading the docs right. This would match user
expectation for POLA.

This default could then be pointed at the correct locations (plural)
on all operating systems. (sslrootcert=system:wincert:otherlocation?)

The "default default" would still be sslmode=prefer so it wouldn't
break today's normal case. Users of sslmode=require will understand
that supplying a CA certificate is no longer optional.

Perhaps add a sslmode=require-weak could be added as a workaround.

Christoph

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