Re: Hashcash for IM2000

* Charles Cazabon <[email protected]> [2003-09-05T21:07:59]
> D. J. Bernstein <[email protected]> wrote:
> > 
> > Depends what you mean by ``large.'' One-hour hashcash is comparable to
> > one-penny postage.
> 
> With the sidenote that monetary inflation makes one-penny postage cheaper much
> less quickly than CPU power "inflation" makes a given hashing problem
> "cheaper".
> 
> I still prefer djb's IM2000/postage ideas over hashcash and other proposed
> ideas.

Agreed, largely for that reason -- especially since the proposer of
hashcash is not pushing for one-hour postage, but one-second postage.
86,400 spam messages a day still strikes me as too many.

Disclaimer: I have no idea how many messages a batch of spam usually
includes.

-- 
rjbs

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