public inbox for [email protected]  

help / color / mirror / Atom feed

From: Andres Freund <[email protected]>
To: Tom Lane <[email protected]>
Cc: Jeff Davis <[email protected]>
Cc: samay sharma <[email protected]>
Cc: [email protected]
Subject: Re: Proposal: Support custom authentication methods using hooks
Date: Fri, 25 Feb 2022 11:49:02 -0800
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <CAJxrbyxTRn5P8J-p+wHLwFahK5y56PhK28VOb55jqMO05Y-DJw@mail.gmail.com>
	<[email protected]>
	<[email protected]>
	<[email protected]>
	<[email protected]>
	<[email protected]>
	<[email protected]>

Hi,

On 2022-02-25 14:10:39 -0500, Tom Lane wrote:
> I'm happy to add support for custom auth methods if they can use
> a protocol that's safer than cleartext-password.  But if that's the
> only feasible option, then we're just encouraging people to use
> insecure methods.

It looks like scram can be used without much trouble. All the necessary
infrastructure to implement it without duplication appears to be public.  The
plugin would need to get a secret from whereever and call
  CheckSASLAuth(&pg_be_scram_mech, port, shadow_pass, logdetail);

or if it needs to do something more complicated than CheckSASLAuth(), it can
use AUTH_REQ_SASL{,_FIN CONT} itself.

Of course whether it's viable depends on what the custom auth method wants to
do. But it's not a restriction of the authentication plugin model.

Greetings,

Andres Freund

view thread (24+ messages)  latest in thread

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: [email protected]
  Cc: [email protected], [email protected], [email protected], [email protected], [email protected]
  Subject: Re: Proposal: Support custom authentication methods using hooks
  In-Reply-To: <[email protected]>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox