[dm-crypt] recovering forgotten password

Arno Wagner arno at wagner.name
Wed Aug 17 21:40:28 CEST 2011

On Wed, Aug 17, 2011 at 09:35:13PM +0200, Arno Wagner wrote:
> To try a password, use somethin like
>   cryptsetup luksOpen /dev/sda3

Needs a device of course, so 
    cryptsetup luksOpen /dev/sda3 e1
for /dev/mapper/e1

> If you need enough tries to automatize this, you can
> read the passphrase from file (or stdin) with something 
> like this
>   cryptsetup --key-file=<some file> luksOpen /dev/sda3

Same as above:
   cryptsetup --key-file=<some file> luksOpen /dev/sda3  e1

and with reading from stdin

   cryptsetup --key-file="-" luksOpen /dev/loop0 e1 

Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno at wagner.name 
GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25 338F
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