decoder wrote:
basically, it is a per recipient hash generation that assures that a
specific amount of time was required to compute this hash per
recipient. Spammers don't have this time, they send thousands of mails
per minute.
A great solution... for 2002.
These days, when most spam is sent through zombies, the spammer isn't
using their own CPU time, they're using some random person's home CPU.
They can send the same amount of spam in the same amount of time *and*
add the hashcash signatures just by using a bigger botnet.
--
Kelson Vibber
SpeedGate Communications <www.speed.net>
