Re: Idea for alternative hashcash/antispam implementation.

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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