Penetration Testing mailing list archives
Optimized attacking for NTLM authentication
From: Hidenobu Seki <seki () atc yamatake co jp>
Date: 6 May 2004 00:27:54 -0000
For your information: In October 2003, SecurityFriday developed a system for analyzing the new NTLM authentication that Windows XP SP1 and 2000 SP4 use by default, in real time (within a couple of seconds.). The system configuration is as follows: OS: Windows XP CPU: Pentium 4 - 1.6GHz Memory: 128MB Hard disk space for precomputation: 1,632GB The number of passwords to be analyzed: Approximately 630 billion The technology used for this system is based on "Optimized Attack" described in the document below: Cryptanalysis of Microsoft's Point-to-PointTunneling Protocol (PPTP) http://www.schneier.com/paper-pptp.pdf Thank you. urity at SecurityFriday.com ------------------------------------------------------------------------------ Ethical Hacking at the InfoSec Institute. Mention this ad and get $545 off any course! All of our class sizes are guaranteed to be 10 students or less to facilitate one-on-one interaction with one of our expert instructors. Attend a course taught by an expert instructor with years of in-the-field pen testing experience in our state of the art hacking lab. Master the skills of an Ethical Hacker to better assess the security of your organization. Visit us at: http://www.infosecinstitute.com/courses/ethical_hacking_training.html -------------------------------------------------------------------------------
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- Optimized attacking for NTLM authentication Hidenobu Seki (May 06)