Date: Sat, 24 Apr 2010 01:30:54 +0400 From: Solar Designer <solar@...nwall.com> To: john-users@...ts.openwall.com Subject: Re: Re-ordered 'Single Mode' Ruleset Matt, Here's an additional comment: It is not clear whether you have full (or any) separation between your training and test sets when you re-order the rules. (You do say that you have such separation for your "UnLock" test, but that's another one.) In other words, the improvement from "Original Single Rules" to "Edited Single Version 2" that you've demonstrated might be partially attributable to you training (re-ordering) the rules on the same set that you later test them on. FYI, the original rules were similarly trained (re-ordered) on Unix crypt(3) hashes in 1990s, although they have since been revised in many ways. (The revision with JtR 1.7.4, while appearing like a major one, was actually mostly limited to making use of the new preprocessor capabilities, which allowed for a 30% reduction in the number of ruleset lines while producing essentially the same candidate passwords.) On Thu, Apr 22, 2010 at 11:32:24PM -0400, Matt Weir wrote: > http://reusablesec.blogspot.com/2010/04/optimizing-john-rippers-single-mode-for.html Thanks again, Alexander
Powered by blists - more mailing lists
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.