Security-related questions

[Larry Hartman]

On Saturday 26 April 2008 10:51:58 pm Andrew Jarrett wrote:
> On Sat, Apr 26, 2008 at 11:07 AM, Martin Laberge <mlsoft at videotron.ca> 
wrote:
> >  Use an encapsulation program to encapsulate your files
> >  in standard jpeg photos.
>
> Ah, the art of hiding data in plain view.  The practice of
> encapsulating files into a picture is called "steganography" (a quick
> google search should return many interesting links).  The most basic
> limit of this practice is that the picture must be a bigger file than
> the hidden one and the visual detectability of alteration to the
> original photo usually depends on how close the size of the files are
> to each other.
>
> For Anyone's Info,
> Andrew
>
> --
> 45 5F E1 04 22 CA 29 C4 93 3F 95 05 2B 79 2A B2

This is really cool stuff, will work for small numbers of files.  Is there any 
efficient solution for larger numbers?