Re: [Asrg] Re: "HashStamp" == hashcash? (Re: Stamping)

On Fri, 21 Mar 2003 14:28:31 CST, Scott A Crosby said:

> Thus, I can afford to make the hashcash stamps incredibly expensive,
> on the order of tens of minutes, because few messages ever use them.
...
> Also, since MUA's may mint arbitrary stamps and bulk mailers may send
> a control message requesting the same, bulk emailers do not require
> users to implement an exception mechanism.
"Hi.. I'm a bulk mailer.  Cound you send me 5 or 10 stamps?"
"Hi.. I'm some other bulk mailer.  Could you send me 5 or 10 stamps?"

Lather, rinse, repeat.  DOS. ;)

(Yes, it can probably be fixed/rate limited, but you're screwed if you don't
fix that problem....)

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