john-users - rule: >NN , format=cuda-mscash, filters, --make-charset segfault

Follow @Openwall on Twitter for new release announcements and other news

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date: Wed, 29 Feb 2012 19:26:25 +0100
From: buawig@...il.com
To: john-users@...ts.openwall.com
Subject: rule: >NN  , format=cuda-mscash, filters, --make-charset segfault

Hi,

I would have a few questions:

a)
I'd like to write rules that contain length checks, where the length
value would be bigger than 9 and therefore consists of two digits. For
example:

>10

but that's not a valid rule. Is there a way around that or does john
support only values up to 9 (1 digit values)?

b) I would be interested in a filter that match the following
characteristics:
- 3 out of 4 character classes are used
- minimum length check

Is there already a filter around that match these properties?

I read on the list that one has to make a trade of between computational
overhead created by the filter itself and cpu power saved via the
filter. In my case computational overhead caused by the filter is not an
issue because I intend to write the output to disk and use it in future
directly with -w

c) I'm running john 1.7.9-jumbo-5 (mpi) + cuda patch [1]
but when starting john:
mpiexec -np 8 ./john --format=cuda-mscash -w=... --rules hashes.txt

I'm getting:
No password hashes loaded (see FAQ)

the same hashes file works fine using --format=mscash

[1]
http://openwall.info/wiki/_media/john/john-1.7.9/jumbo5/john-1.7.9-jumbo-5-cuda-1.diff?id=john%3Apatches&cache=cache

Any idea what the issue could be?

thanks in advance,
buawig

ver: 1.7.9-jumbo-5_mpi [linux-x86-64-cuda]

CHARSET_MAX			0xFF
CHARSET_LENGTH			16

[host:02589] *** Process received signal ***
[host:02589] Signal: Segmentation fault (11)
[host:02589] Signal code: Address not mapped (1)
[host:02589] Failing at address: 0x1
[host:02589] [ 0] /lib/x86_64-linux-gnu/libpthread.so.0(+0x10060)
[0x7fede355f060]
[host:02589] [ 1] ./john() [0x4ae5d8]
[host:02589] [ 2] ./john() [0x48ef26]
[host:02589] [ 3] ./john() [0x48f0b3]
[host:02589] [ 4] ./john() [0x48e41e]
[host:02589] [ 5] ./john() [0x48d600]
[host:02589] [ 6] ./john() [0x48dbe1]
[host:02589] [ 7] ./john(main+0x1e3) [0x48e16f]
[host:02589] [ 8]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed) [0x7fede31d130d]
[host:02589] [ 9] ./john() [0x40e329]
[host:02589] *** End of error message ***
Segmentation fault

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.