Re: What the heck is this? Optical noise encryption?

Ethan D Schartman says:

One solution to this problem might be to use a recursive equation to generate a source from a small (one-hundred+ digit) seed, and the number of iterations necessary to reproduce the source. The nice thing about this is that the equation could also be customized, something like: x= (k)(x^2)+a, where "a" and "k" are constants that may be

And at this point I've just built an ordinary PRNG+Xor based stream cipher and the usual techniques to break it all apply. All this "encryption with chaos" stuff just adds up to "look at my fancy PRNG", which of course is a game that crypto people have been playing for a long time. I'm starting to get alarm bells go off every time "chaos" is mentioned. Perry