hashcash spam prevention & firewalls

[Uhh...this is Joe [Randall Farmer]]

...
> So, we would need about 44 hours of CPU time each day.

Well, have a system of certified remailers trusted to force their users to burn
up time at the sending end, so the ultimate recipient accepts their messages
w/o postage. One certified remailer accepts messages from others without any
postage, so only the original sender has to use up CPU time. 

>   -- Robert Costner                  Phone: (770) 512-8746
>      Electronic Frontiers Georgia    mailto:pooh at efga.org  
>      http://www.efga.org/            run PGP 5.0 for my public key

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Randall Farmer
    rfarmer at hiwaay.net
    http://hiwaay.net/~rfarmer