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Date: Tue, 24 Jul 2012 04:13:38 +0200
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: Re: Current -fixes GPU formats vs TS

Output from new version:

$ ./pw_len_finder.sh mscash_tst.in
num	len	sum
1	0	1
3	1	4
16	4	20
16	5	36
14	6	50
41	7	91
97	8	188
200	9	388
218	10	606
212	11	818
232	12	1050
181	13	1231
120	14	1351
79	15	1430
38	16	1468
8	17	1476
2	21	1478
14	24	1492
8	25	1500

>From using this tool and looking at --list=format-details I see this:

mscash-cuda should find 1500, finds 1216.
mscash2-cuda should find 1500, finds 1050.

All three raw-sha2-cuda formats should find 1476, and do. Same goes for
raw-sha512-opencl and xsha512-opencl. I will fix TS and these five are set.

pwsafe-cuda should find 1500, finds none.
md5crypt-opencl should find 1500, finds none.
phpass-opencl should find 1470, finds none.
nt-opencl should find 1478, finds none.

Some of the last four had wrong figures in TS too, I will fix that.

magnum


On 2012-07-24 03:38, magnum wrote:
> That script does not work well. For example, it considers this a
> password from mscash_tst.in:
> 
> "characters__17:mscash (user name required for salt in john's format):"
> 
> where the actual password is just "characters__17".
> 
> I think this is better for most files:
> grep -v '^#!comment:' $1 | cut -d: -f5 | perl -ne 'use bytes; chomp;
> print length, "\n"' | sort -n | uniq -c | sort -nk2
> 
> I think I'll update the script and add a sum column too.
> 
> magnum
> 
> 
> On 2012-07-23 23:12, jfoug wrote:
>> There is a script in the TS that can 'help'.  It is called pw_len_finder.sh
>>
>> Run it on the input file for the format in question, then add up all lines to the max password allowed.  That is the value that needs to be place into the TS data file for that format.
>>
>> NOTE, multi byte encoding (utf8) will cause that silly little script to not work right.  Also note, there may be 1 more 'zero' or negative lengths, than there should be. I need to fix the script to ignore the first line, if it is a comment, and does not contain the required field.
>>
>> Jim.
>>
>>> From: magnum [mailto:john.magnum@...hmail.com]
>>>
>>> These actually look like the formats had their max lengths increased, so
>>> maybe we should just adjust the Test Suite? If so, please give me or Jim
>>> a notice. I really do not have time to chase information from the source
>>> code.

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