Re: You're on SecurityFocus.com for the cleartext passwords.

From: Vince Vielhaber <vev(at)michvhf(dot)com>
To: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, The Hermit Hacker <scrappy(at)hub(dot)org>, "Sverre H(dot) Huseby" <sverrehu(at)online(dot)no>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: You're on SecurityFocus.com for the cleartext passwords.
Date: 2000-05-06 16:56:57
Message-ID: Pine.BSF.4.21.0005061253300.13987-100000@paprika.michvhf.com
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general pgsql-hackers

On Sat, 6 May 2000, Bruce Momjian wrote:

> > > Also, MD5 is not ideal for passwords. Seems the standard unix-style
> > > password crypting is the standard, so it should be used to crypt our own
> > > passwords in pg_shadow. I am sure someone would find some problem with
> > > us using md5 for password storage.
> >
> > FreeBSD uses MD5 by default since at least ver 2.2, possibly earlier.
> >
> > > We already use the unix-style password crypt to send passwords over the
> > > wire. Why not use it for storage too?
> >
> > Can ALL clients we support use it over the wire?
>
> Yes, I think so. Java has its own, and the others use libpq do to it.
> The beauty of my suggesting is that all we have to do is pass the
> pg_shadow salt along with the random salt, and call the crypt code
> twice, first with the pg_shadow salt, then with the random salt.
>
> The server pass the pg_shadow version through the random salt crypt, and
> compares.
>
> Now, I we want to move all the stuff to use MD5 rather than the standard
> unix password crypt, that is another option, though I am not sure what
> value it would have.
>
>

How about ODBC? This is from the ODBC driver source connection.c:

self->errormsg = "Password crypt authentication not supported";

Is that because of the platform it's running on or what it's talking
to?

Vince.
--
==========================================================================
Vince Vielhaber -- KA8CSH email: vev(at)michvhf(dot)com http://www.pop4.net
128K ISDN from $22.00/mo - 56K Dialup from $16.00/mo at Pop4 Networking
Online Campground Directory http://www.camping-usa.com
Online Giftshop Superstore http://www.cloudninegifts.com
==========================================================================

In response to

Responses

Browse pgsql-general by date

  From Date Subject
Next Message Bruce Momjian 2000-05-06 17:02:47 Re: You're on SecurityFocus.com for the cleartext passwords.
Previous Message Sverre H. Huseby 2000-05-06 16:45:26 Re: You're on SecurityFocus.com for the cleartext passwords.

Browse pgsql-hackers by date

  From Date Subject
Next Message Tom Lane 2000-05-06 16:59:55 Re: http://www.postgresql.org/doxlist.html (fwd)
Previous Message Sverre H. Huseby 2000-05-06 16:45:26 Re: You're on SecurityFocus.com for the cleartext passwords.