RE: [Full-Disclosure] Senior M$ member says stop using passwords completely!

["Thomas G O'Reilly" <tgoreilly@xxxxxxxxxxxxx>]

Actually in a Win2003 domain the LM hashes are eliminated by default.  In 
a 2000 domain you can add the NoLMHash value to 
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\LSA  This prevents the 
old LM hashes from being stored from the next time passwords are changed.






"Todd Towles" <toddtowles@xxxxxxxxxxxxxxx>
Sent by: full-disclosure-admin@xxxxxxxxxxxxxxxx
10/19/2004 04:42 PM

 
        To:     "Pavel Kankovsky" <peak@xxxxxxxxxxxxxxxxxxxxxx>, 
<full-disclosure@xxxxxxxxxxxxxxxx>
        cc: 
        Subject:        RE: [Full-Disclosure] Senior M$ member says stop using 
passwords 
completely!


I was under the understand that passwords of over 14 characters were
stored with a more secure hash, therefore 14 characters passwords were
harder to crack, due to the more secure hash. Windows will create two
different hashes for passwords shorting than 14 characters, I do
believe.

Just use a non-printable character in your password and cracking is
useless...if they crack it, they can't read what they cracked. ;) 

> -----Original Message-----
> From: full-disclosure-admin@xxxxxxxxxxxxxxxx 
> [mailto:full-disclosure-admin@xxxxxxxxxxxxxxxx] On Behalf Of 
> Pavel Kankovsky
> Sent: Sunday, October 17, 2004 2:21 PM
> To: full-disclosure@xxxxxxxxxxxxxxxx
> Subject: Re: [Full-Disclosure] Senior M$ member says stop 
> using passwords completely!
> 
> On Sat, 16 Oct 2004, Frank Knobbe wrote:
> 
> > It's a nice recommendation of MS to make (to use long passphrases 
> > instead of passwords). But I don't consider 14 chars a "passphrase".
> > Perhaps they should enable more/all password components to 
> handle much 
> > longer passwords/phrases.
> 
> A passphrase consisting of 7 words and 12 bits of entropy per 
> a word is as guessable as a password with 14 characters and 6 
> bits of entropy per a character. You get 84 bits of total 
> entropy in both cases.
> 
> The only advantage of passphrases is that lusers might find 
> long random sequences of words easier to remember than long 
> random sequences of characters.
> 
> (But wait: 12 bits of entropy per a word--this is equivalent 
> to a uniform choice of one word out of 4096. 4 thousand? That 
> might exceed an average luser's vocabulary by an order of 
> magnitude! ;>)
> 
> --Pavel Kankovsky aka Peak  [ Boycott 
> Microsoft--http://www.vcnet.com/bms ] "Resistance is futile. 
> Open your source code and prepare for assimilation."
> 
> _______________________________________________
> Full-Disclosure - We believe in it.
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