Magic Money -> Chaum Cash

Based on Eric's long and mathematical explanation, which I did not fully understand and was therefore convinced by,

An example of reputation-based proof by obscurity. I hope the main point came out, though. There are lots of parameters to pick from, and therefore lots of attacks can be contemplated.

I have changed the program to use full Chaum cash.

Be careful when you say this. Chaum has worked on lots of cash protocols. Better to say that you're now using a non-multiplicative signature. Eric