Date: Fri, 20 Feb 2009 21:05:35 +0300 From: Solar Designer <solar@...nwall.com> To: john-users@...ts.openwall.com Subject: Re: my incremental mode On Fri, Feb 20, 2009 at 02:39:17PM +0100, antuan 55 wrote: > But this mode use majuscule ?no? No, the pre-defined Alnum mode uses 10 digits and 26 lower-case letters only. > And another thing: > > CharCount=1 ---> 1 > CharCount=2 ---> 2 > CharCount=3 ---> 3 > ............................ > CharCount=10 ---> a > CharCount=11 ---> b > CharCount=12 ---> c > > Is true? No, it is not (if I understood you correctly). By reducing CharCount, you tell JtR to only try this-many most-frequent characters, separately for each position and depending on two preceding characters. The actual number of different characters tried will usually be higher than CharCount, because different characters are the most frequent ones in different positions and after different preceding characters - but the total effort will be exactly the same as that of trying CharCount different characters. I understand that this is difficult to grasp. I'll illustrate it with an example: [Incremental:Alnum-3-2] File = $JOHN/alnum.chr MinLen = 3 MaxLen = 3 CharCount = 2 ./john -i=alnum-3-2 --stdout pmc dog don def dea pat pam pm1 words: 8 time: 0:00:00:00 w/s: 800 current: pm1 It is usually not a good idea to restrict CharCount. In fact, you don't have to specify it at all, and the only reason to specify "CharCount = 36" for "Alnum" is to get JtR to print a warning if this turns out to be inconsistent with the .chr file. Finally, please be careful to quote only relevant context of the preceding discussion. This time, you quoted the message you were replying to in its entirety - including even the mailing list manager's unsubscribe notice. (I hear that Gmail may sometimes hide quoted text, yet send it along with the message.) I had to remove the extraneous quoting by editing your message in the moderation queue. On some other occasions, I am simply rejecting improperly formatted messages like that. http://www.netmeister.org/news/learn2quote.html Thanks, Alexander -- To unsubscribe, e-mail john-users-unsubscribe@...ts.openwall.com and reply to the automated confirmation request that will be sent to you.
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