man losetup
losetup /dev/loop0 /dev/hdxx -e DES
mke2fs /dev/loop0
mount /dev/loop0 /mnt/
On Sat, 21 Apr 2001, Tamas Nagy wrote:
> Hello,
>
> Lot of people would like to know their data in secure place, and the
> frequent usage of compression softwares could be time-consuming and boring
> sometime.
>
> Idea:
> extend the current file-system with an optional plug-in system, which allows
> for file-system level encryption instead of file-level. This could be used
> transparently for applications or even for file-system drivers. This
> doesn't mean an encrypted file-system, but a transparent encryption of a
> media instead.
>
> Advantages:
> #1: optional security level for every data, without user interaction.
> #2: if this idea is used e.g. for portable media (like cdrom), your backup
> could be in safe also.
> #3: (almost;)) everybody could create own security plugin for their data,
> and not have to trust on the designers of a secure file systems.
>
> I suspect that this idea may appeared in the past:(, but I haven't heard
> about it;).
>
> So, what do you think about this? Is Linux kernel enough flexible to do
> this? What changes are necessary to do such a thing? Is there any other way,
> to have own security for file-systems or portable medias? Is this
> implementation could be used in the US?
>
> Best regards,
> Tamas Nagy
>
>
>
>
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