From: "Konstantin Bläsi" <ktrackfd@googlemail.com>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] piping password to cryptsetup
Date: Thu, 18 Sep 2014 15:45:15 +0200 [thread overview]
Message-ID: <541AE1EB.5010201@gmail.com> (raw)
In-Reply-To: <1411000175.17610.0@smtp.gmail.com>
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On 09/18/2014 02:29 AM, frodowiz wrote:
> i have been to so many forums to find a solution to this. all the
> variations are confusing me and none are working.
> i am trying to pipe a passphrase to cryptsetup using yad.
>
> pass1=`yad --form --title="Enter container passphrase" --height=50
> --width=350 --field=Password:H`
>
> then i strip out the pipe character present between yad variables
>
> pass="${pass1//|}"
>
> at this point the variable pass appears to be exactly what i want.
>
> later on i invoke cryptsetup with the passphrase variable piped to it.
>
> echo "$pass" | cryptsetup --cipher aes-xts-plain --key-size 512 --hash
> sha512 --iter-time 5000 --use-random luksFormat "$container" -
>
> after a moment, i see the device pop into the selection in my file
> manager then it dissapears.
>
> the funny thing is, i wrote a terminal only version using the same
> methods minus the yad things and it works fine(see attached)
>
> terminal version requires 3 confirmations YES, passphrase, passphrase.
> do i need to reproduce these confirmations even with a minus sign at
> the end of the cryptsetup line?
>
> if so, would echo "YES"$'\n'"$pass"$'\n'"$pass"'\n' do this?
>
> also, if i replace the echo "$pass" pipe with xterm -e cryptsetup....
> it works fine. basically, i am not getting the password format piped
> correctly. ive seen 7 different variations on this pipe and nothing is
> working. its probably something with spaces but i am resorting to
> email to lower my bloodpressure. also avoiding forums to lower my
> heart rate :)
>
> thanks to anyone reading this.
> Erik
>
>
> _______________________________________________
> dm-crypt mailing list
> dm-crypt@saout.de
> http://www.saout.de/mailman/listinfo/dm-crypt
Hi Erik,
you want to use "echo -n" for piping the password without a trailing
newline and "cryptsetup -q ..." in your scripts to avoid any additional
user input.
Konstantin
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next prev parent reply other threads:[~2014-09-18 13:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-18 0:29 [dm-crypt] piping password to cryptsetup frodowiz
2014-09-18 7:29 ` ken
2014-09-18 13:45 ` Konstantin Bläsi [this message]
2014-09-27 4:20 ` frodowiz
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