🚀 go-pugleaf

In article <1992Aug20.160528.2155@nessie.mcc.ac.uk>, segr@nessie.mcc.ac.uk (Simon Read) writes:
> I can't see how Rivest Shamir and Adleman can have a patent on
> performing exponentiation (patents cannot cover maths).

They patented a ``cryptographic communications system'' based on the
RSA equations.  They didn't claim either exponentiation or any particular
way of doing it.  As a consequence, if you found a new use for those
exponentiations that's neither claimed by the patent, nor a derivative
of any of its claims, you wouldn't infringe, even though you were
doing the exact same things.

> If anyone has a US patent Number for RSA can they let me know and
> I'll go and have a read. I'm too poor to pay for the search, and
> too busy to do it myself.

4,405,829.