Date: Sun, 11 Oct 2015 20:43:25 +0200 From: magnum <john.magnum@...hmail.com> To: john-users@...ts.openwall.com Subject: Re: External subsets mode On 2015-09-02 00:03, magnum wrote: > On 2015-09-01 23:39, Luis Rocha wrote: >> I was trying the --external=subsets mode with a different character but I >> get a segmentation fault when changing the character range in john.conf: >> >> >> /* This defines the character set */ >> i = 0; >> c = 0xc2a1; >> while (c <= 0xcdaf) >> charset[i++] = c++; >> >> >> $ ./john /tmp/hashes --internal-encoding=utf-8 --encoding=utf-8 >> --format=nt >> --external=subsets >> Segmentation fault (core dumped) >> >> >> Any idea what it could be? > > You probably forgot to bump the declaration "int charset[0x100];" to > something larger. But you can't use Unicode characters like that anyway. > Have a look at dumb16.conf and/or dumb32.conf for a way to do it: Those > two modes work with UTF-16 and UTF-32 internally and has a final > conversion from that into UTF-8. Not sure why it took me so long realizing the potential here. Latest bleeding-jumbo now supports using UTF-32 in external mode. To enable it, simply set "utf32 = 1" in the external mode's init() function and then code like the above will work fine. The word will be encoded to whatever target encoding is in use. The dumb16/32 and repeats16/32 modes were updated to use this feature (instead of converting in their filter function) and got a 4x boost. magnum
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