[hashcash] Re: Idea for alternative hashcash/antispam implementation.
- From: "Eric S. Johansson" <esj@xxxxxxxxxx>
- To: hashcash@xxxxxxxxxxxxx
- Date: Thu, 12 May 2005 10:30:16 -0400
Jonathan Morton wrote:
However much we'd like it to be, hashcash by itself does not make an
anti-spam scheme. Initially at least, the best places for it to work
are as a false-positive mitigator (in conjunction with a content filter
or DNSBL) and/or an introducer (in conjunction with a whitelist). I
have in development a scheme which explicitly combines both of these
approaches, and Eric has something broadly similar in CAMRAM.
half agreement. If you look at the camram site and go to the zombie
logic/zombie calculator section, he quickly learn one thing (at lease it
reinforced what I figured was true). By playing with stamp size and
stamp usage patterns, Hashcash (or something like it) will actually
reduce the amount of spam on the net. why? In order to pass as much
spam through stamp filters as what leaks through content filters today
(i.e. roughly 10 percent), spammers would have to produce 1/10 the span
they do today. The only way you can force that is by making stamps big
enough which really isn't all that big. Play with the calculator and
see how it turns out.
Yes, it's also a great false positive mitigated for as long as there is
spam and not everyone generates a stamp, you will need a content filter
for backwards compatibility.
and Jonathan, if your scheme is any good, I will have no qualms about
lifting it and giving proper attribution. We really need to focus on
making this technology easily available to others and I believe the
shortest path that is a devil Linux based CD-ROM.
---eric
---eric
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