Hi all,
I'd like to crypt CDROMs, but can't get it working with ISO9660. Any other
filesystem does work!
What I did:
#> modprobe cryptoloop
#> dd if=/dev/urandom of=/tmp/cryptfile bs=2048 count=333000
#> echo "my_passwort" | \
losetup -e aes --keybits 256 -p 0 /dev/loop1 /tmp/cryptfile
#> mkisofs -v -r -o /dev/loop1 /home/backup
#> mount -t iso9660 -o ro /dev/loop1 /mnt/cdrom
mount: Falscher Dateisystemtyp, ungültige Optionen, der
»Superblock« von /dev/loop1 ist beschädigt oder es sind
zu viele Dateisysteme gemountet
It doesn't recognise the filesystem as a valid ISO9660 filesystem. If I use
ext2 or reiserfs anything is fine.
In my next test I use the loop device again, this time without the chipper:
#> losetup /dev/loop1 /tmp/cryptfile
#> mkisofs -v -r -o /dev/loop1 /home/backup
#> mount -t iso9660 -o ro /dev/loop1 /mnt/cdrom
So what's wrong with ISO9660 on crypted files? Is this a fault of mkisofs,
cryptoapi or the filesystem driver?
--
Dipl.-Ing. Erik Kunze Phone: +49 - 89 - 32 14 07 41
PHILOSYS Software GmbH Fax: +49 - 89 - 32 14 07 12
Edisonstr. 6 Email: Erik.Kunze@philosys.de
D-85716 Unterschleissheim WWW: www.philosys.de/~kunze
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Linux-crypto: cryptography in and on the Linux system
Archive: http://mail.nl.linux.org/linux-crypto/
