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Date: Sun, 14 Nov 2004 14:25:33 -0800
From: Kris Kennaway <kris@obsecurity.org>
To: Ivan Voras <ivoras@fer.hr>
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cc: current@freebsd.org
Subject: Re: Passwd format?
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On Sat, Nov 13, 2004 at 05:42:53PM +0100, Ivan Voras wrote:
> The Handbook and crypt(3) say passwords in master.passwd are MD5 hashes=
=20
> if they start with $1$, for example:
>=20
> $1$DP.s8oCc$VJo0/026/S5ng6HlD1Sz8/
>=20
> the format is $1$salt$rest. I have several questions:
>=20
> How are the values encoded? This looks something like base64.
>=20
> Is it possible to actually verify the password against this format using=
=20
> only a bare implementation of the md5 algorithm?
>=20
> Actually, the reason for these questions is that I'm considering using=20
> LDAP authentication on a machine with lots of users and I'm wondering if=
=20
> existing passwd information could be transported to LDAP. Any=20
> experiences/docs on this?

man 3 crypt, or see the source code

Kris

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