Focus on Microsoft
TGP Password Strength Checker online Jul 13 2010 05:08AM
Thor (Hammer of God) (thor hammerofgod com) (3 replies)
RE: TGP Password Strength Checker online Jul 15 2010 11:01AM
Keith Langmead (keith vpwsys net) (1 replies)
RE: TGP Password Strength Checker online Jul 16 2010 12:21AM
Thor (Hammer of God) (thor hammerofgod com)
Re: TGP Password Strength Checker online Jul 14 2010 08:53AM
Alexander Klimov (alserkli inbox ru) (1 replies)
RE: TGP Password Strength Checker online Jul 16 2010 01:32AM
Murda (murdamcloud bigpond com) (1 replies)
RE: TGP Password Strength Checker online Jul 16 2010 05:40PM
Wayne Anderson (wfrazee wynweb net) (1 replies)
I would love to see some basic option to configure what your assumption is
for compute resources to apply.

Maybe a drop box with a couple of presets predicated on example
configurations. E.g. a choice of "A modern desktop", "A modern multi-proc
server", "A modern single HPC Server", "a distributed 10-server array", and
[insert one of the top 10 from the current list of supercomputers here,
preferably one government owned]

I think the password strength tool is almost as useful (when mature) as the
rest of the offering.

-W

-----Original Message-----
From: listbounce (at) securityfocus (dot) com [email concealed] [mailto:listbounce (at) securityfocus (dot) com [email concealed]] On
Behalf Of Murda
Sent: Thursday, July 15, 2010 7:33 PM
To: focus-ms (at) securityfocus (dot) com [email concealed]
Subject: RE: TGP Password Strength Checker online

I like the idea behind the tool, somewhat, but I don't know how exact it can
be. I think Alexander's reasoning below has some strength behind it. Is it
something like trying to predict when a random number might come up. Keep
rolling an n-faced die for long enough and sometimes your number may come up
near the 'beginning' or near the 'end'. Who can say? Obviously, that all
depends on how the program is actually implemented to brute force. Is it
purely sequentially?
Which also makes me wonder, what is the 'seconds to crack' based on? A
single machine? An array of distributed machines etc?
I think you can give some 'good' idea of how strong the passphrase is but
maybe not as exact as you hope. I could be wrong(and often am).

-----Original Message-----
From: listbounce (at) securityfocus (dot) com [email concealed] [mailto:listbounce (at) securityfocus (dot) com [email concealed]] On
Behalf Of Alexander Klimov
Sent: Wednesday, July 14, 2010 6:54 PM
To: focus-ms (at) securityfocus (dot) com [email concealed]
Subject: Re: TGP Password Strength Checker online

On Tue, 13 Jul 2010, Thor (Hammer of God) wrote:
> However, what IS different is that you can actually get an idea of
> exactly how many iterations it will take to crack both a particular
> password specifically and the keyspace it "lives" in, apply that to
> actual TIME required to crack it. I like that part, and have found it
> to be valuable, so here it is in case you do as well.

An incorrect precise number is worse than no number at all: if you assure
user that it takes 129,052,722,140 iterations to guess password "password",
or 2,322,220,814,264,750,000 to guess "qwerty123456", it only misleads. The
real attackers start guessing not from "a", but in the most-probable-first
order.
What is this order depends on the traits of the mark: the first password to
try, can as well be "password", "qwerty123456", or "salasana".

--
Regards,
ASK

[ reply ]
RE: TGP Password Strength Checker online Jul 17 2010 02:22AM
Thor (Hammer of God) TGP (tgp hammerofgod com)
Re: TGP Password Strength Checker online Jul 13 2010 08:52PM
Ansgar Wiechers (bugtraq planetcobalt net) (2 replies)
RE: TGP Password Strength Checker online Jul 15 2010 04:48PM
Tom Walsh - lists (mailinglist expresshosting net)
RE: TGP Password Strength Checker online Jul 15 2010 04:12PM
Thor (Hammer of God) (thor hammerofgod com)


 

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