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Re: Election status



On Thu, Apr 04, 2002 at 10:59:51AM -0500, Andrew Pimlott wrote:
> On Fri, Apr 05, 2002 at 01:44:13AM +1000, Anthony Towns wrote:
> > On Thu, Apr 04, 2002 at 10:10:39AM -0500, Andrew Pimlott wrote:
> > > I grant you that it is susceptible to someone who "gets to" you
> > > before the vote.  This seems very hard to defend: the enemy can just
> > > insist that you send him your signed vote, and let him submit it.
> > > To beat this, you would have to be able to revoke the coerced vote
> > > in a way that makes the enemy think the vote he sent was counted,
> > > but makes you certain that yours was counted and his was not.  Too
> > > hard for me.
> > Actually, it's pretty easy. As part of the vote, you have an "order id",
> > and whichever of these is highest, no matter what order the votes were
> > received in, is accepted. So you give the bully the vote he wants, with
> > `one bazillion' in the order field, and then submit the vote you really
> > wanted with `one bazillion and one' in the order field. You need to be
> > careful with your acks and naks in this case though.
> But he will see that his vote wasn't counted, and punish you.  How
> can you foil him, without him knowing you foiled him?

How will he see that, exactly? There weren't any tallies posted at the
end to let people verify things, and every correctly formatted, signed
vote gets an ack, whether it actually gets counted or not.

Getting both verifiability and deniability is difficult. Getting one or
the other is quite possible, though, which was the point of the above.

Cheers,
aj

-- 
Anthony Towns <aj@humbug.org.au> <http://azure.humbug.org.au/~aj/>
I don't speak for anyone save myself. GPG signed mail preferred.

                        Vote [1] Bdale!

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