Re: cryptoloop as user?

[ernst <ernst@bluezone.no>]

Nop, can't do.

I have an crypted fil created with 'dd' and ciper blowfish. this file is
mounted at loop0.

when I mount with the 'mount' command, debian understand that this is my
/folder/cryptfile.

when I try to do this in fstab, it doesn't understand that loop0 is
cryptfile or vice versa, so it need to know about them bouth. and that's
where my problem is, how to put 'cryptfile' 'loop0' and mountpoint in
fstab so that debian understands it, and with the right permission.

so what I did was that I just created a couple of scripts, one that mounts
and set the right permission, and one that umount and detach the loop
device, this is working fine.

the odd thing was when I tryed your solution, it didn't even give me an
error:)

thanks anyway

/ernst



On 11 Dec 2002, Matthias Hentges wrote:

> Am Die, 2002-12-10 um 16.20 schrieb Rob Weir:
> > On Mon, Dec 09, 2002 at 07:15:08PM +0100, ernst wrote:
> > > Hi
> > >
> > > I'm useing cryptoloop to protect my data on a ibmx20 laptop. Im running
> > > 2.4.19 kernel with the cryptoloop and cryptoapi modules innstalled.
> > >
> > > As root, I have created a file with dd, used blowfish as cipher and
> > > mounted it trough loop0, so far so good.
> > >
> > > But I am wondering if there is an easyer way to du this, I would like to
> > > do this in bootup, as user.
> > >
> > > The way I'm doint it now is (as root):
> > > losetup -e blowfish -k 128 /dev/loop0 /usr/tmp/my_crypt_file
> > > mount /dev/loop0 /home/ernst/mnt/my_crypt_file
> > > chown -R ernst:users /home/ernst/mnt/crypt
> > >
> > > Then I'm there, I can work on my docs as a user, but I'm wondering if
> > > there is an easyer way of soing it?
> > >
> > > To release this again I'm doing :
> > > umount /dev/loop0
> > > losetup -d /dev/loop0
> >
> > There isn't really any way to delegate this sort of authority under
> > Linux at the moment,
>
> Yes there is. Edit your fstab and you are done.
>
> /home/$USER/crypto0     /some/dir       reiserfs           \
> defaults,noauto,loop,encryption=twofish,user    0 0
>
> [...]
>
> --
>
> Matthias Hentges
> [www.hentges.net] -> PGP + HTML are welcome
> ICQ: 97 26 97 4   -> No files, no URLs
>
> My OS: Debian Woody: Geek by Nature, Linux by Choice
>
>
>
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