Re: ADS Password Storage Protection

[Eoin Miller <eoin.miller () trojanedbinaries com>]

eric.baechle () dhs gov wrote:
> Winshel;
>
> Actually, a passphrase is not as secure as a random password.  As you probably have heard, "Don't use dictionary words" over and over again.  Even compound dictionary words 
> are bad, ie: "firedogdalmation".  Compounding dictionary words with spaces, punctuation, and even gramatically correct modifiers in between is really no different than without.  
> It's a very simple substitution to try; "firedogdalmation" and then try "fire dog dalmation", "Fire Dog Dalmation", "Dalmation the Fire Dog", 
> etc.
>
> Using compound dictionary words could come back to bite you very quickly, even when used in long phrases.
>
> Sincerely,
>
> Eric Baechle, CISSP/ISSEP, etc.
> Senior INFOSEC/OPSEC Engineer
> Department of Homeland Security
>
>   
Password length is still extremely important. A completely randomized 8 
character length password is still no match for an attacker with the 
rainbow tables at their disposal. Complexity requirements should still 
be employed, but having a length requirement of less than 12 characters 
is not adaquate. I believe the idea expressed by Winshel of length being 
more important than randomness is a result of these types of precomputed 
hash attacks.

--Eoin

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