Forcing unsigned calculations

[Mango]

But my problem still stands: I'm CHR$()ing the result...And the result turns out to be negative. So, stil,l there is a problem.

My point is...why not do your underlying manipulations to the integers instead of bytes?? It will be much faster. There's nothing you can do to a byte that you can't do as well to a word.

An aside...to be any good a crypto-system has to stand up *EVEN* when an attacker has your source code!!!

EDIT...to expose myself to criticism...Here's my convoluted crypto-mess.....
http://home.bellsouth.net/p/PWP-brightwave



Cheers