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Toggle question / Emulate shift - mahoganyduck - 07-02-2018
So I'm trying to reduce duplicates in password processing, specifically around case toggling.
I'm generating a 4 char keywalk with kwprocessor including shifts, lowercase everything, sort and remove dupes. Then using prince I can make comboes and let rules handle all the case toggling (much faster than std in or a fat list).
Considering that many of these combinations have 1 or more non-letters, the toggle rule has no effect on the plain (there is no lowercase $ or 1) and a dupe is processed... at least as far as I can tell a dupe is processed. If a rule doesn't change a candidate, is there logic to skip it? I'm guessing not as it's probably faster to plow ahead than check.
Based on that assumption, I would like to figure out a way to emulate a shift: Ie 1<=>! 2<=>@ a<=>A
Is there somethng like that already?
Thanks.
RE: Toggle question / Emulate shift - philsmd - 07-02-2018
see https://hashcat.net/wiki/doku.php?id=rule_based_attack#implemented_specific_functions for ascii increment/decrement and shift left/right rule functions.
RE: Toggle question / Emulate shift - undeath - 07-02-2018
I think the goal is to replace certain characters with certain others. That's not possible with rules. hashcat-legacy had a table lookup mode which did exactly this.
RE: Toggle question / Emulate shift - mahoganyduck - 07-02-2018
undeath has it right, thanks.
The positional replace is kinda close, but trying to use it the way I'm thinking would be horrible. https://hashcat.net/wiki/doku.php?id=rule_based_attack#using_p_nth_instance_of_a_character_with_positional_rules
The table lookup would be perfect, although I imagine there's a performance related reason they did away with it.
RE: Toggle question / Emulate shift - mahoganyduck - 07-02-2018
Hmm, there might be hope?
https://github.com/hashcat/hashcat/issues/67