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BRUTEFORCE-LUKS(1) Bruteforce LUKS encrypted volume BRUTEFORCE-LUKS(1)

NAME

bruteforce-luks - try to find the password of a LUKS volume

SYNOPSIS

bruteforce-luks [options] <path to LUKS volume>

DESCRIPTION

The purpose of this program is to try to find the password of a LUKS encrypted volume.

It can be used in two ways:

• brute force attack: try all the possible passwords given a character set. It is especially useful if you know something about the password (i.e. you forgot a part of your password but still remember most of it). Finding the password of a volume without knowing anything about it would take way too much time (unless the password is really short and/or weak).

• dictionary attack: try all the passwords in a file.

The program can use several threads (the number of threads can be specified with the -t command line option).

Sending a USR1 signal to a running bruteforce-luks process makes it print progress info to standard error and continue.

OPTIONS

-b <string>
Beginning of the password.
Default: ""
-e <string>
End of the password.
Default: ""
-f <file>
Read the passwords from a file instead of generating them.
-h
Show help and quit.
-l <length>
Minimum password length (beginning and end included).
Default: 1
-m <length>
Maximum password length (beginning and end included).
Default: 8
-s <string>
Password character set.
Default: "0123456789ABCDEFGHIJKLMNOPQRSTU
          VWXYZabcdefghijklmnopqrstuvwxyz"
-t <n>
Number of threads to use.
Default: 1
-v <n>
Print progress info every n seconds.
-w <file>
Restore the state of a previous session if the file exists,
then write the state to the file regularly (~ every minute).

EXAMPLES

Try to find the password of a LUKS encrypted volume using 4 threads, trying only passwords with 5 characters: 

    bruteforce-luks -t 4 -l 5 -m 5 /dev/sdb1


Try to find the password of a LUKS encrypted volume using 8 threads, trying only
  passwords with 5 to 10 characters beginning with "W4l" and ending
  with "z":



    bruteforce-luks -t 8 -l 5 -m 10 -b "W4l" -e "z" /dev/sda2




Try to find the password of a LUKS encrypted volume using 8 threads, trying only
  passwords with 10 characters using the character set
  "P情8ŭ":



    bruteforce-luks -t 8 -l 10 -m 10 -s "P情8ŭ" /dev/sdc3




Try to find the password of a LUKS encrypted volume using 6 threads, trying the
  passwords contained in a dictionary file:



    bruteforce-luks -t 6 -f dictionary.txt /dev/sdd1




Instead of passing a block device to the program, you can copy the beginning of
  the LUKS volume to a file and pass this file to the program:



    sudo dd if=/dev/sda1 of=/tmp/luks-header bs=1M count=10
    bruteforce-luks -t 4 -l 5 -m 5 /tmp/luks-header




Print progress info:



    pkill -USR1 -f bruteforce-luks




Print progress info every 30 seconds:



    bruteforce-luks -t 6 -f dictionary.txt -v 30 /dev/sdd1




Save/restore state between sessions:



    bruteforce-luks -t 6 -f dictionary.txt -w state.txt /dev/sdd1
      (Let the program run for a few minutes and stop it)
    bruteforce-luks -t 6 -w state.txt /dev/sdd1








  

    July 2017
    BRUTEFORCE-LUKS 1.3.1