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Date: Sat, 14 May 2011 12:38:59 -0500
From: "JimF" <jfoug@....net>
To: <john-dev@...ts.openwall.com>
Subject: Changes to john's unique program.
I am posting this noticication here ot john-dev, and not to john-users. If
it needs to also go to users, I will post it there also.
I have placed a patch to the unique.c (unique program) This patch can be
placed over 1.7.7-jumbo1 (or the jumbo-2-rc1). It adds this to unique:
Changes to unique (different than original 1.7.7-jumbo1). The unique code
will be in the soon to be released jumbo-3-RCx patch.
1. added -v screen outputs number of lines starting and finishing.
(mingw builds always output this)
2. -inp=fname Allows using without being a filter. Fixes some Win32
issued (embedded EOF, last line missing EOL, etc). Note, even in the
rockYou word list, there is an EOF character.
3. -ex_file=fname A 2nd file that is also used to unique the data against.
Only unique data in input file also NOT in this file will be written.
4. -ex_file_only=fn Same as -ex_file BUT assumes current data is already
unique, thus does not perform unique on original input data.
5. -cut=num Cut the lines to num bytes long (or shorter). Also,
the -ex_file data is cut when read, so it properly uniques data.
6. -cut=LM This will cut words to 7 bytes, AND if longer than 7
bytes, will grab the next 7 bytes. Also, data is upcased. NOTE, this
operation is NOT performed on the -ex_file data. To use -ex_file, it should
already be in LM format.
7. -mem=num A number from 13 to 25 (default john build is 20). This
controls size of hash buffer, and input building buffer. Default of 20 is
hash is 1 million items, and buffer of 64MB. Each number up is 2x larger,
each num down is 1/2 size.
Additional information:
The command line swiches need to be in full, so -cut=lm
or -ex_file_o=filename are not valid.
The "=num" is a valid number. for the -mem=, it is [13,25] for -cut= num
must be in range of [1,LINE_BUFFER_SIZE] which is [1,1024]
fname (or fn) is to be replaced with the name of a file.
if using -mem, be careful not to use to large of a number, (i.e. more than
1/2 your memory, or about that). Crashes will likely occur, if using over
this, and obviously speed will be greatly reduced (due to memory thrashing).
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