On Tue, Dec 2, 2008 at 6:12 AM, John Leslie <john(_at_)jlc(_dot_)net> wrote:
Bart Schaefer <schaefer(_at_)brasslantern(_dot_)com> wrote:
Since this is a research group, here's a pointer to some research done
by someone else:
http://arxiv.org/abs/0802.0832
I would further claim that it would be simple enough, in the case
of ePostage, to have the receiving MTA specify a set of acceptable
issuing banks and ensure that each of them _could_ be involved at
the time of the transaction (which happens at SMTP time). This would
eliminate the double-spending problem between the only two parties
that must be able to interact without previous arrangement.
And by decentralizing, it mitigates the giant database problem.
Thanks for the link,
Gerald
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