A good summary, John.
Receipient rate limiting might take the form of hashcash, although
that seems too easily circumvented so long as the bad guys have
zombies to do their hashing.
This is a quantitative rather than qualitative argument against
hashcash, which is easily answered by increasing the bit count demanded
by the recipient, if it seems it's not having enough effect. This is a
measure that can be implemented by individual recipients who feel it
necessary, rather than needing to be implemented unilaterally.
--------------------------------------------------------------
from: Jonathan "Chromatix" Morton
mail: chromi(_at_)chromatix(_dot_)demon(_dot_)co(_dot_)uk
website: http://www.chromatix.uklinux.net/
tagline: The key to knowledge is not to rely on people to teach you it.
_______________________________________________
Asrg mailing list
Asrg(_at_)ietf(_dot_)org
https://www1.ietf.org/mailman/listinfo/asrg