From: "F. Senault" <fred@...>
Date: 2007-01-14T00:55:16+09:00
Subject: Re: MD5 BSD like passwords

Le 13 janvier 2007 � 14:41, Felipe Cruxen a �crit :

> I'm coding a "postfixadmin" using ruby, so, all the passwords are stored
> in DB using a bsd like md5 hash. Is there any simple way I could
> generate passwords like that (the same hash could be used to generate
> shadow pass?)?.

If that's really a BSD-like password (in the form $n$aaaaaaa$aa...), the
crypt function should be able to generate it on a unix system, as long
as you pass the entire salt ($ included) :

>> "password".crypt("$1$Eou1PtvJ$")
=> "$1$Eou1PtvJ$bh2HAitLkEOwoU6Fjuh8i0"

If you take a look at the manpage of the crypt system function (man 3
crypt or http://www.freebsd.org/cgi/man.cgi?query=crypt&sektion=3 ),
you'll see an explanation of the hash format.

I have no idea of the portability of that function, though.  For
instance, it doesn't work on my Windows box, but it works well enough
with FreeBSD and Linux.

Fred
-- 
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