RE: john the ripper

[Tony Kava <securityfocus () pottcounty com>]

-----Original Message-----
> From: Giacomo [mailto:badgiaco () supereva it] 
> Sent: Thursday, 04 December, 2003 05:21
> To: fbr
> Cc: pen-test () securityfocus com
> Subject: Re: john the ripper
>
>
> fbr wrote:
>
> > The following benchmarks are all "FreeBSD MD5 [32/32]" tests done with 
> > john.
> >
> > Intel(R) Pentium(R) 4 CPU 3.20GHz
> > 5903 c/s real, 5903 c/s virtual
> >
> > Intel(R) Pentium(R) 4 CPU 2.40GHz
> > 4094 c/s real, 4355 c/s virtual
> >
> > Pentium III (Coppermine)
> > 2455 c/s real, 2455 c/s virtual
> >
> > Can anyone provide any Athlon benchmarks?
> >
> > -Forrest
> >
> > On Tuesday 02 December 2003 04:52 am, Giacomo wrote:
> >  
>
> I think that test isn't true, how It can know the speed to crack 2 or 8 
> character password ?
> In my cpu athlon xp 2500 barton (1833mhz) john -test show me 5308c/s 
> (real and virtual) but in the reality it is cracking at 3500c/s 
> (incremental:All after days)

The test is just a benchmark.  Your mileage may vary.  You should notice a
gradual decrease in speed as your incremental cracking works it way up to
more complex passwords.  I put together my own Perl-based system to
distribute cracking with a web interface for monitoring the progress.  Using
MRTG to graph the rate will show you a nice downward curve.  If you are
trying all characters you may want to reconsider based on the system from
which the password was taken.

--
Tony Kava
Network Administrator
Pottawattamie County, Iowa

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