Re: Hashcash for IM2000
"D. J. Bernstein" <[email protected]>
| Newsgroups | gmane.mail.im2000 |
|---|---|
| Message-ID | <[email protected]> |
Hashcash isn't as good (i.e., isn't as closely aligned with the actual economics of the situation) as a payment to the receiver, but it doesn't hurt as an add-on. Ricardo SIGNES writes: > What keeps a spammer from computing a large number of hashes Depends what you mean by ``large.'' One-hour hashcash is comparable to one-penny postage. ---D. J. Bernstein, Associate Professor, Department of Mathematics, Statistics, and Computer Science, University of Illinois at Chicago