Security Basics mailing list archives

Re: Password statistics and standards


From: Ansgar -59cobalt- Wiechers <bugtraq () planetcobalt net>
Date: Thu, 19 Oct 2006 01:37:50 +0200

On 2006-10-17 John Lightfoot wrote:
Dathan wrote:
I don't understand what you mean.  Rainbow tables have been generated
for 14-character NTLM passwords.  Check out the Project RainbowCrack
homepage (http://www.antsight.com/zsl/rainbowcrack/).  Are you
referring to the 8-character set available for MD5?

My understanding of how NTLM stores passwords is by storing the first
7 characters in one location and up to 7 more characters in a second.
reason rainbow tables can crack the fourteen digit passwords is
because they're really cracking two 7 character passwords.

That's LM, not NTLM.

Regards
Ansgar Wiechers
-- 
"All vulnerabilities deserve a public fear period prior to patches
becoming available."
--Jason Coombs on Bugtraq

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