Re: WIP: AuthenticationMD5 protocol documentation clarification

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Cyan Ogilvie <cyan(dot)ogilvie(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: WIP: AuthenticationMD5 protocol documentation clarification
Date: 2011-10-14 00:50:05
Message-ID: 201110140050.p9E0o5T21875@momjian.us
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Heikki Linnakangas wrote:
> On 06.06.2011 16:58, Robert Haas wrote:
> > On Sun, Jun 5, 2011 at 11:26 AM, Cyan Ogilvie<cyan(dot)ogilvie(at)gmail(dot)com> wrote:
> >> This is my first patch, so I hope I've got the process right for submitting
> >> patches.
> >
> > You're doing great. I suspect we do want to either (1) reword what
> > you've done in English, rather than writing it as code, or at least
> > (2) add some SGML markup to the code. Our next CommitFest starts in
> > just over a week, so you should receive some more specific feedback
> > pretty soon.
>
> That is quite complicated to explain in plain English, so some sort of
> pseudo-code is probably a good idea. I would recommend not to formulate
> it as a SQL expression, though. It makes you think you could execute it
> from psql or something. Even if you know that's not how to do it, it
> feels confusing. Maybe something like:
>
> <literal>md5</literal> hex_encode(md5(hex_encode(md5(password username)
> salt)
>
> with some extra markup to make it look pretty.

I have applied the attached doc patch to document this. Thanks for the
report --- it was something we certainly needed to document.

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ It's impossible for everything to be true. +

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