Making an encrypted DVD image

gistfile1.sh

# All the code from http://billauer.co.il/blog/2010/10/encrypted-iso-dvd-luks-dm-crypt-fedora-linux/

MB_COUNT=100
VOL_NAME=MyVolName
DIR_TO_COPY=/tmp/mydir

# Make a 100MB disk image
dd if=/dev/zero of=disk.img bs=1M count=$MB_COUNT

# become root
sudo su

# write to the image
# ****** NOTE that you'll be prompted three times for a passphrase
losetup /dev/loop1 disk.img && \
  cryptsetup luksFormat /dev/loop1 && \
  cryptsetup luksOpen /dev/loop1 mybackupdisk && \
  genisoimage -R -J -joliet-long -graft-points -V $VOL_NAME -o /dev/mapper/mybackupdisk $DIR_TO_COPY

# close the device
cryptsetup luksClose /dev/mapper/mybackupdisk && \
  losetup -d /dev/loop1

# Now you have disk.img that can be burned to a CD/DVD, or just mount it in Linux.
# You'll be prompted for the passphrase each time you mount it.

Hi @sowbug !
Finally I've found a working procedure for creation of cdrom/dvd encrypted using DM-CRYPT!
I searched a lot on the net, finding only guides that were obsolete or didn't work, I had also asked in the DM-CRYPT mailing list (https://www.saout.de/pipermail/dm-crypt/2020-November/006628.html) but without arriving at the expected result, and finally, when I was giving up hope, I found this yours page that saved me! :-)
I've only changed disk.img to disk.iso, and burned it, and success!

Thanks again ;-)

Davide
Italy

You're welcome. I'm glad it worked for you.

…

On Wed, Nov 18, 2020, 9:20 AM David ***@***.***> wrote: ***@***.**** commented on this gist. ------------------------------ Hi @sowbug <https://github.com/sowbug> ! Finally I've found a working procedure for creation of cdrom/dvd encrypted using DM-CRYPT! I searched a lot on the net, finding only guides that were obsolete or didn't work, I had also asked in the DM-CRYPT mailing list ( https://www.saout.de/pipermail/dm-crypt/2020-November/006628.html) but without arriving at the expected result, and finally, when I was giving up hope, I found this yours page that saved me! :-) I've only changed disk.img to disk.iso, and burned it, and success! Thanks again ;-) Davide Italy — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <https://gist.github.com/c7f83140581fbe3e6a9b3ddf24891e77#gistcomment-3531970>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAAHMVB47OSPNLOTY4EPMJTSQP66PANCNFSM4T2ILDAQ> .