shadow and password , can you help me ?

[Jeff Vian]

On Mon, 2004-09-06 at 01:01, priou wrote:
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> 
> Le lundi 06 Septembre 2004 00:43, Alexander Dalloz a écrit :
> > Am So, den 05.09.2004 schrieb priou um 23:10:
> > >         i ve need to read , some passwd in my serveur ftp , but they are
> > > crypted with shadow and i would like to make this :
> > >
> > >                 password_shadow ----> password_read_humain (printed on my
> > > screen )
> > >
> > >         exemple :
> > >                 $1$59BDQjvM$WCC3rboNRyuRsDzV.bHHF1  =>  dodou
> >
> > That is impossible. You can't revert crypted passwords back to the
> > original string.
> >
> > See "man crypt".
> >
> > Alexander
> 
> ok :( 
> our  ftp customers will not be happy ...
> thank for your answer 
> 
> alexandre 

It is possible to recover some of the passwords with a lot of processing
power if you use crack on the password files (on a system where you have
permission to do so). However, it is a brute force crack and not a
decrypt method.