Re: decrypted pwd

From: "scott(dot)marlowe" <scott(dot)marlowe(at)ihs(dot)com>
To: "Don V(dot) Soledad" <don(dot)soledad(at)uratex(dot)com(dot)ph>
Cc: <pgsql-general(at)postgresql(dot)org>
Subject: Re: decrypted pwd
Date: 2003-09-08 14:53:26
Message-ID: Pine.LNX.4.33.0309080851460.11416-100000@css120.ihs.com
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On Sat, 6 Sep 2003, Don V. Soledad wrote:

> good day!
>
> is there a way to retrieve a user's decrypted password, just like when i
> issued a "SELECT * FROM pg_shadow;" in the earlier version of postgresql?

Sure, here's the simple method:

1: Generate a list of all possible passwords.
2: Generate an md5 sig for each one.
3: Compare your infinite number of md5 sigs to the one stored for the
user. When they match, you've got the original password, or at least a
password that will work just like the original.

I think the total computer time required to do this is something on the
order of a few thousand years, so it might take a rather large farm of
machines in a cluster to do this.

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