Re: Is there anybody there?

["Eric A. Anderson" <eanders+@CMU.EDU>]

"Michael Graff" <explorer@iastate.edu> writes:
> >The problem with clients being smarter is a classic one,  the netrek
> >solution is to have binaries distributed which have a "key" to connect
> >them to servers so that the client and servers can mutually
> >authenticate.  There's not a lot you can do about this problem other
> >than that solution.
> 
> The problem with this is that the RSA code used to both generate and use the
> keys cannot be exported from the USA, and any binaries made with this sort of
> thing cannot be exported either.
> 
> Export laws suck, but they are laws...  :(
So don't do it with RSA.  Since you are doing security through
obscurity anyway(someone could just disassemble the code), you perform
any algorithm you want to on the i.p. addr of the server, and the
packet it sends you and then you send the information back.  The
server just checks to make sure you did what you were supposed to have
done. 
          -Eric 
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