"Perry E. Metzger" <pmetzger@lehman.com> wrote:
Amateurs regularly develop systems and claim fantastic things for them. They then turn out to be trivial to break. This has made people who are even semi-pro like some of the folks on this list shake their heads and say "oh no, not another one" every time someone who hasn't read the literature claims to have come up with "the new great cryptosystem". This is the reason that people tend to be so skeptical of the constant stream of new proposals from such individuals. Its nothing personal -- its just the sort of jaded attitude you get when this sort of thing happens repeatedly.
This is true. If you were specifically referring to the example I posted, it could probably be broken from the data presented if you really put your mind to it. However it is a fairly clever PRNG, and it takes quite a bit of data to get the exact pattern. It might not be feasible to create a cryptosystem using fractals and chaos functions, but I think the possibility could be explored a bit further...