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

From: "Robert B(dot) Easter" <reaster(at)comptechnews(dot)com>
To: Hannu Krosing <hannu(at)tm(dot)ee>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: [HACKERS] You're on SecurityFocus.com for the cleartext passwords.
Date: 2000-05-07 23:08:33
Message-ID: 00050719104905.04750@comptechnews
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My understanding is that what you get from crypt(pw, salt) =

$1$<salt>$<hashed password>

Please correct me if I wrong. Again, not an expert.

On Sun, 07 May 2000, you wrote:
> "Robert B. Easter" wrote:
> >
> > On Sun, 07 May 2000, Hannu Krosing wrote:
> > >
> > > But how will you know if the data in the field is md5 hashed ?
> >
> > I think they begin with $1$ and that the salt in the hashed string is like this:
>
> how do you distinguish it from a plaintext password thet starts with $1$
> ?
>
> > $1$<salt>$ -- a total of 12 characters of salt if you include the $1$$
> > characters. <salt> is 9 characters. Someone can correct me if this is not
> > true. I'm not an expert. :)
>
> Well in Zope they begin with {MD5} for MD5 hash. The md5 hash itself
> knows
> nothing about salt - it is just fed to the function before the password.
> And the digest can begin with anything, possibly even \0 if not
> {uu|base64}encoded
>
> ------------
> Hannu
--
Robert B. Easter
reaster(at)comptechnews(dot)com

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