Re: Rejecting weak passwords

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Mark Mielke <mark(at)mark(dot)mielke(dot)cc>, Dave Page <dpage(at)pgadmin(dot)org>, Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>, Andrew Dunstan <andrew(at)dunslane(dot)net>, Marko Kreen <markokr(at)gmail(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, Greg Stark <gsstark(at)mit(dot)edu>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, mlortiz <mlortiz(at)uci(dot)cu>, Albe Laurenz <laurenz(dot)albe(at)wien(dot)gv(dot)at>
Subject: Re: Rejecting weak passwords
Date: 2009-10-16 15:29:50
Message-ID: 200910161529.n9GFTol04475@momjian.us
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Tom Lane wrote:
> Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> > If we were using some kind of real public key system and someone
> > suggested breaking it to add password complexity checking, I would
> > understand the outrage here. But I don't understand why everyone is
> > so worked up about having an *optional* *flag* to force plaintext
> > instead of MD5. I might be wrong here, but can't a determined
> > attacker brute-force an MD5 anyway? The very fact that people are
> > suggesting that password checking might be feasible even on a
> > pre-MD5'd password by using a dictionary suggests that we're not
> > getting a whole lot of real security here. And even if not, dude,
> > it's an *optional* *flag*.
>
> Yes, and it's an optional flag that could perfectly well be implemented
> in the plugin that I think we do have consensus to add a hook for.
> The argument is over why do we need to litter the core system with it.

So, are we agreed to provide a hook on the server side, but to use it
you have to configure your system with SSL and 'password'? I can add
that to the TODO list.

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

+ If your life is a hard drive, Christ can be your backup. +

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