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Re: Re: Encrypting pg_shadow passwords

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Frank Ch(dot) Eigler" <fche(at)redhat(dot)com>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Re: Encrypting pg_shadow passwords
Date: 2001-06-27 15:34:34
Message-ID: 8434.993656074@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
"Frank Ch. Eigler" <fche(at)redhat(dot)com> writes:
> Having scanned over the discussion again, my understanding is that Jim's
> proposed changes don't affect backwards compatibility.  As long as user
> passwords continue to be passed in plaintext to the server, the server
> can store encrypted passwords in the authentication table.

The 'passwd' mode wouldn't be affected, but the 'crypt' mode would be;
it would become less secure than it is now, because the server would be
forced to send the same salt always, and so a captured encrypted
password would be just as useful as a captured plaintext one.  That's
the step backwards.

			regards, tom lane

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