fractal encryption -- decoding?

nomadreid

I have read (sorry, I don't have the references handy, but they were vague anyway) two brief descriptions of fractal encryption. The first one is to use a strange attractor to generate pseudo-random numbers, and to use these numbers in a standard coding scheme. The second one is to encode the information into the initial values in the generating function. In both cases, the coding is clear. In neither case is the decoding mechanism clear. Can anyone explain that in one or both of the cases? Thanks.