Update Crunch – Wordlist generator V-3.4

Change version 3.4 : 

  •  test compile using Ubuntu 12.10 and fixed the following issues:
  • reorder flags in Makefile so crunch can compile successfully
  • remove finall variable from printpercentage
  • Remove loaded from main
  • fix -e problem reported by hajjid
Crunch is a wordlist generator where you can specify a standard character set or a character set you specify. crunch can generate all possible combinations and permutations.


  • crunch generates wordlists in both combination and permutation ways
  • it can breakup output by number of lines or file size
  • now has resume support
  • pattern now supports number and symbols
  • pattern now supports upper and lower case characters separately
  • adds a status report when generating multiple files
  • new -l option for literal support of @,%^
  • new -d option to limit duplicate characters see man file for details
  • now has unicode support

TODO: Listed in no particular order
add resume support to permute (I am not sure this is possible)
make permute more intelligent (min, max) (I am not sure this is possible either)
support SIGINFO when Linux supports it, use SIGUSR1 until SIGINFO is available
finalbytecount isn’t currently correct for unicode chars unless -p used
let user specify placeholder characters (@,%^)
add date support?
specify multiple charset names using -f i.e. -f charset.lst + ualpha 123 +
make permute use -e
revamp compression part of renamefile 7z doesn’t delete original file
maybe fork compression part of renamefile
size calculations are wrong when min or max is larger than 12
newer gcc complains about pidret as not being used

usage: ./crunch [charset]
e.g: ./crunch 3 7 abcdef

This example will compute all passwords between 3 and 7 chars
using ‘abcdef’ as the character set and dump it to stdout.

usage: ./crunch[-fcharset-name] [-o wordlist.txt or START] [-t [FIXED]@@@@] [-s startblock]

-b          : maximum bytes to write to output file. depending on the blocksize
files may be some bytes smaller than specified but never bigger.
-c          : numbers of lines to write to output file, only works if “-o START”
is used, eg: 60  The output files will be in the format of starting
letter – ending letter for example:
crunch 1 5 -f /pentest/password/charset.lst mixalpha -o START -c 52
will result in 2 files: a-7.txt and 8- .txt  The reason for the
slash in the second filename is the ending character is space and
ls has to escape it to print it.  Yes you will need to put in
the when specifying the filename.
-d          : specify -d [n][@,%^] to suppress generation of strings with more
than [n] adjacent duplicates from the given character set. For example:
./crunch 5 5 -d 2@
Will print all combinations with 2 or less adjacent lowercase duplicates.
-e          : tells crunch to stop generating words at string.  Useful when piping
crunch to another program.
-f          : path to a file containing a list of character sets, eg: charset.lst
name of the character set in the above file eg:
-i          : inverts the output so the first character will change very often
-l          : literal characters to use in -t @,%^
-o          : allows you to specify the file to write the output to, eg:
-p          : prints permutations without repeating characters.  This option
CANNOT be used with -s.  It also ignores min and max lengths.
-q          : Like the -p option except it reads the strings from the specified
file.  It CANNOT be used with -s.  It also ignores min and max.
-r          : resume a previous session.  You must use the same command line as
the previous session.
-s          : allows you to specify the starting string, eg: 03god22fs
-t [FIXED]@,%^  : allows you to specify a pattern, eg: @@god@@@@
where the only the @’s will change with lowercase letters
the ,’s will change with uppercase letters
the %’s will change with numbers
the ^’s will change with symbols
-u          : only print words; supress file size information, aka unheard
-z          : adds support to compress the generated output.  Must be used
with -o option.  Only supports gzip, bzip, lzma, and 7z.

This code can be easily adapted for use in brute-force attacks
against network services or cryptography.

Compiles on: linux (32 and 64 bit Ubuntu for sure, 32 and 64 bit Linux in
general works.  I have received word that crunch compiles on MacOS.
It should compile on freebsd and the other Unix and Linux OSs but I don’t
don’t have access to any of the those systems.  Please let me know.

Download : crunch-3.4.tgz (38.4 kB) 
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