Date: Sat, 9 Jan 2016 14:42:05 +0100 From: magnum <john.magnum@...hmail.com> To: john-users@...ts.openwall.com Subject: Re: -min-len / -max-len oddities with accented letters On 2016-01-08 20:41, Patrick Proniewski wrote: > Hello, > > I'm pretty sure it's known problem: I'm currently using JohnTheRipper-bleeding-jumbo, compiled the 7th of december, on FreeBSD 10.x, and I'm trying to crack passwords with those options: > > ./john --fork=4 --session=MYSESS --rules=ALL --wordlist=mots_francais_plus_plus_alpha.dic -min-len=15 -max-len=16 PWDDUMP.20151205 > > I've just cracked a 14 char length password, with an accented letter. > Earlier, playing with -min-len=13 -max-len=14 I've cracked a 12 char password, with an accented letter too. > > Is that to be expected? Yes. The -min/max-len options are actually counting bytes and using UTF-8 any non-ASCII character take between two and four bytes. We've had wild ideas about making a fork of Jumbo that internally uses UTF-32 for all character handling. That would remove some bottlenecks and limitations but introduce others. But it would make things like this more consistent. magnum
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