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" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED] 10/19/2004 04:42 PM
|
To: "Pavel Kankovsky" <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]> 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: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Pavel Kankovsky
> Sent: Sunday, October 17, 2004 2:21 PM
> To: [EMAIL PROTECTED]
> 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.
> Charter: http://lists.netsys.com/full-disclosure-charter.html
>
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