[plug] Not strictly linux ...

[Bill Kenworthy]

Hi Jeremy,
	had a play and this is interesting!  Do you have a refence to using
losetup in this way other than the man/info pages?.  Appears that the
Mandrake 7.2 version supports only xor though I have blowfish installed
separately so I would like to get more info and enable this.  Also there
appears to be potential to use bzip (or other compressor) in a similar
fashion to compress the contents instead of/or as well as encrypt them. 
If practical, this would give a good alternative to virtualCD which is
very handy under windoze due to its compression ability - allows more
data to be transparently stored/served up from a given HD space.

BillK

Jeremy Malcolm wrote:
> 
> >         I have a small text file (script actually) that I have on a floppy for
> > running vnc and tunneling from windows into my home server (Linux of
> > course).  I would like to encrypt this in case I lose the disk (contains
> > port numbers and method to get the IP number of my dialup from another
> > location etc) , what is the easiest most usable way?  Does not need to
> > be totally unbreakable (not that important/risky), but easy to use and
> > portable (the method could also be used on similar files I keep on
> > another Linux system as well.)
> 
> Either GPG with -c option (symmetric cypher rather than public key
> encryption) or mount the floppy as a loopback device with encryption
> (losetup -e blowfish /dev/loop0 /dev/fd0 ; mkfs -t ext2 /dev/loop0 ; mnt
> -t ext2 /dev/loop0 /mnt).
> 
> --
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