-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The Friday 2007-04-20 at 15:14 +0200, Ludwig Nussel wrote:
- First I generate a zisofs compressed dvd image, using mkzftree (1) and "mkisofs -Z", which I name "zisofs.iso". - Create an xfs image of an encrypted filesystem (losetup, twofish, etc), in file '/Disco40/crypta.xfs.f' - I mount the xfs image, and copy on the resulting filesystem the iso9660/zisofs dvd image created earlier (zisofs.iso). - I umount the xfs image, and burn it to a dvd.
What do you need the xfs image for? You can just burn the result of encrypting zisofs.iso.
I don't know how to encrypt an iso image. The encryption procedure I know is: dd if=/dev/zero of=crypta.file bs=1M count=4482 losetup -T -e twofish256 /dev/loop1 crypta.file mkfs -L "EncriptedBackup" -t xfs /dev/loop1 mount -t xfs /dev/loop1 /mnt/tmp I don't know how i can adapt mkisofs so that it creates an encrypted image. You see, there are man pages on the encryption programs, but I haven't seen a howto on how to combine all of them.
Anyways. Looks like xfs doesn't work with the sector size of a cdrom. It works if you attach a loop device first and then use the loop device for cryptsetup-twofishSL92. e.g. losetup /dev/loop0 /dev/hdc cryptsetup-twofishSL92 foo /dev/loop0
You mean that the devmapping thing will not work? Because I can mount them ok without that (execept the SL92 compatibility problem, that is). Ah, I see! nimrodel:~ # losetup /dev/loop2 /dev/hdc nimrodel:~ # cryptsetup-twofishSL92 foo /dev/loop2 Enter passphrase: nimrodel:~ # mount /dev/mapper/foo foodir/ nimrodel:~ # l foodir/ total 4305612 ... It works! Wow, thanks! - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) Comment: Made with pgp4pine 1.76 iD8DBQFGKQjOtTMYHG2NR9URArmNAJ4w3aSZNprz4FZDmBBXxW8SRc+laQCfRNtv 1nPzGYQ/vuYy+HI52ShNQuU= =Y8qF -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-security+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-security+help@opensuse.org