Date: Sun, 18 Sep 2011 14:22:24 +0400 From: Solar Designer <solar@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: integer limit reached On Sun, Sep 18, 2011 at 11:54:31AM +0200, Pablo Fernandez wrote: > That specific question was actually about JTR itself, not about the external > modes. 32 bit integers actually seem quite small number for certain hashes, > so, I was wondering if John can actually work in the incremental mode on those > orders of magnitude. My first guess is that, since each word is generated by > the previous one, you don't need to "count" the words so far... but what > happens with the sessions, for example? John uses 64-bit ints from math.[ch] there. > I actually got myself around the 32bit limit in my external mode, by adding > two variables: turns_min and turn_max, that carry the number of times my > counter has to turn around 31 bits (to avoid sign). So, as soon as the > autoincrement becomes negative (MAX_INT / 2), I decrease the number of turns, > and set the counter to 0. It's not perfect, but it works! Yes, this was one of the options I suggested. > Thanks for the patch, I have just tried with long long int, and it seems to > work fine. Thanks for letting me know. Alexander
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