Bruteforce dm-crypt using dictionary

cat dictionary.txt|while read a; do echo $a|cryptsetup luksOpen /dev/sda5 sda5 $a && echo KEY FOUND: $a; done
Lost your luks passphrase? You can always bruteforce from the command line. See the sample output, a simple command using a dictionary.
Sample Output
# cat dictionary.txt|while read a; do echo $a; echo $a|cryptsetup luksOpen /dev/sda5 $a && echo KEY FOUND; done
pass
No key available with this passphrase.
PasS
No key available with this passphrase.
PASs
No key available with this passphrase.
PA5s
No key available with this passphrase.
P4s5
KEY FOUND
...

# ls -l /dev/mapper/
total 0
crw------T 1 root root 10, 236 Apr 16 19:49 control
lrwxrwxrwx 1 root root       7 Apr 16 20:34 P4s5 -> ../dm-1

0
By: rodolfoap
2014-04-16 18:49:53

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  • This one uses dictionary.com


    13
    pronounce(){ wget -qO- $(wget -qO- "http://dictionary.reference.com/browse/$@" | grep 'soundUrl' | head -n 1 | sed 's|.*soundUrl=\([^&]*\)&.*|\1|' | sed 's/%3A/:/g;s/%2F/\//g') | mpg123 -; }
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What Others Think

cat overload! while read a; do echo $a|cryptsetup luksOpen /dev/sda5 sda5 $a && echo KEY FOUND: $a; done < /etc/dictionary.txt
mpb · 217 weeks and 4 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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