At 02:12 PM 04/10/2001 -0700, Morlock Elloi wrote:

There is something deeply disturbing here (3 hat thing) http://channel.NYTimes.com/2001/04/10/science/10MATH.html that will possibly lead to a generic solution for Feistel nets.

Interesting problem, but how is it related to Feistel nets? Is there other work that you know about (not referenced in the NYTimes article) that suggests it? Hamming codes are the standard error-correcting code things.