From: Bill Stewart <stewarts@ix.netcom.com>
Date: Mon, 20 Oct 1997 16:05:08 +0800
To: "Andrew Wiggin" <cypherpunks@toad.com
Subject: Re: Been tried before?
In-Reply-To: <19971018052525.20913.qmail@hotmail.com>
Message-ID: <3.0.3.32.19971020004751.006c4c04@popd.ix.netcom.com>
MIME-Version: 1.0
Content-Type: text/plain



At 10:25 PM 10/17/1997 PDT, Andrew Wiggin wrote:
>I had an idea for a key system using graphics files. Has that been tried 
>before? The basic idea was to use a graphics file with a color depth of 
>24-bit or higher. Then, using the rgb values of, say, every prime pixel 

What are you trying to accomplish?  Having a non-obvious place
to store passwords?  After all, your suggestion is really equivalent
to a bunch of numbers stored in a file.

What has usefully been done is to take numbers and hide them as
low-order bits in a graphic file, with various implementations
getting fancy about either just sticking them there or looking
at the palette values from the picture and finding something
visually better matching.
				Thanks!
					Bill
Bill Stewart, stewarts@ix.netcom.com
Regular Key PGP Fingerprint D454 E202 CBC8 40BF  3C85 B884 0ABE 4639