#12 Protocol Help

[Jeed890]

Hey, i saw you wrote about the protocol used but where
you say:

$Key CLIENT This is the Clients first message to the server.
the client sends a Key. this key will be calculated from the
<lockcode>.

How does it calculate the Key code from the Lock code?

If you could email me with a answer id be grateful.
My email is jeed890 AT gmail DOT com

Thanks.