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Date: Thu, 2 Jan 2014 02:51:31 +0100
From: Frank Dittrich <frank_dittrich@...mail.com>
To: john-dev@...ts.openwall.com
Subject: Strange errors with dynamic formats > dynamic_4999
In my john.local.conf, I added 8 copies of dynamic_1025, naming them
dynamic_2025 - dynamic_9025.
I just changed the format names and the prefixes of the test hashes.
This is expected:
$ ./john --list=subformats |tail
UserFormat = dynamic_2011 type = dynamic_2011: md5($s.md5($p.$s)) (PW >
32 or salt > 23 bytes, sse2)
UserFormat = dynamic_2014 type = dynamic_2014: md5($s.md5($p).$s) (PW >
55 or salt > 11 bytes, sse2)
UserFormat = dynamic_2025 type = dynamic_2025: sha1(md5(md5($pass)))
(first 32 bytes)
UserFormat = dynamic_3025 type = dynamic_3025: sha1(md5(md5($pass)))
(first 32 bytes)
UserFormat = dynamic_4025 type = dynamic_4025: sha1(md5(md5($pass)))
(first 32 bytes)
UserFormat = dynamic_5025 type = dynamic_5025: sha1(md5(md5($pass)))
(first 32 bytes)
UserFormat = dynamic_6025 type = dynamic_6025: sha1(md5(md5($pass)))
(first 32 bytes)
UserFormat = dynamic_7025 type = dynamic_7025: sha1(md5(md5($pass)))
(first 32 bytes)
UserFormat = dynamic_8025 type = dynamic_8025: sha1(md5(md5($pass)))
(first 32 bytes)
UserFormat = dynamic_9025 type = dynamic_9025: sha1(md5(md5($pass)))
(first 32 bytes)
But this isn't:
$ ./john --list=format-details |cut -f 1|grep dynamic_.025
dynamic_1025
dynamic_2025
dynamic_3025
dynamic_4025
$ for n in 5 6 7 8 9
> do
> ./john --list=format-details --format=dynamic_${n}025 |cut -f 1
> done
dynamic_5025
dynamic_6025
dynamic_7025
dynamic_8025
dynamic_9025
$ for n in 5 6 7 8 9; do ./john --test=0 --format=dynamic_${n}025;
doneTesting: dynamic_5025 [sha1(md5(md5($pass))) (first 32 bytes)
128/128 SSE2 10x4x2]... PASS
Testing: dynamic_6025 [sha1(md5(md5($pass))) (first 32 bytes) 128/128
SSE2 10x4x2]... PASS
Testing: dynamic_7025 [sha1(md5(md5($pass))) (first 32 bytes) 128/128
SSE2 10x4x2]... PASS
Testing: dynamic_8025 [sha1(md5(md5($pass))) (first 32 bytes) 128/128
SSE2 10x4x2]... PASS
Testing: dynamic_9025 [sha1(md5(md5($pass))) (first 32 bytes) 128/128
SSE2 10x4x2]... PASS
Then I renamed one format to dynamic_4999, the next one to 5000, and
repeated the tests.
Apparently, dynamic formats with numbers >= 5000 will be ignored by
almost any command unless specified directly.
The only exception is --list=subformats (or the obsolete --subformat=LIST).
Even
$ ./john --test=0 --format=dynamic
or
$ ./john --test=0 --format=dynamic_*
will skip format names >= dynamic_5000.
Since bash completion for dynamic formats uses --list=subformats,
completion will work (but the list is sorted alphabetically, not by
numbers):
(bleeding-jumbo)run $ ./john --format=dynamic_9[tab][tab]
dynamic_9 dynamic_91 dynamic_94 dynamic_97
dynamic_90 dynamic_92 dynamic_95 dynamic_98
dynamic_9025 dynamic_93 dynamic_96
(bleeding-jumbo)run $ ./john --format=dynamic_9
Frank
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