<br><br><div class="gmail_quote">2012/2/22 Kathy Dopp <span dir="ltr"><<a href="mailto:kathy.dopp@gmail.com">kathy.dopp@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Jameson,<br>
<br>
If you want to make a modest pretense of caring about the<br>
integrity/verifiability of the vote tallies, you need to retain and<br>
report the number of ballots cast and vote tallies for each type and<br>
location of ballot cast. I.e. for precincts or ballot definition<br>
types. Not that any on-line voting system could be verified as<br>
accurate, but if you simply report the aggregated results, then any<br>
suspicious-looking patterns in the data will be entirely hidden.<br>
<br>
Kathy<br></blockquote><div><br></div><div>Actually, the cryptography of Helios is pretty good at that stuff already. Each vote is recorded in encrypted format, with either a voter ID or a voter alias, as well as precinct info. Each voter has a receipt for their vote and can use an easy-to-use program, running in their own web browser on a trusted machine, to mathematically verify that their vote was included in the total, and that all the votes in the total were reported. It is insecure against trojans on the voters machine at the time of the initial vote, unless the voter takes some rather extreme precautions; and it depends for security on some fraction of voters being awake enough to perform the checks and make noise if something doesn't check out; but it takes no special expertise to do so, it's just a matter of pressing some buttons and checking the result independently. And as long as some small fraction of the voters do that, it's really pretty solid security; not something I'd trust for public elections, but certainly far, far more security than many systems actually in use (which I don't trust), including some fully-manual processes.</div>
<div><br></div><div>So anyway, the question really is not "should it keep a tally of how many people vote", but "should it keep a tally of how many people specifically rated each individual candidate, as opposed to leaving that candidate unmarked/defaulted to 0."</div>
<div><br></div><div>Jameson</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
> Date: Wed, 22 Feb 2012 16:15:01 -0600<br>
> From: Jameson Quinn <<a href="mailto:jameson.quinn@gmail.com">jameson.quinn@gmail.com</a>><br>
<div class="im">><br>
> I'm working on sketching out data structures so that Helios<br>
</div>> Voting<<a href="https://vote.heliosvoting.org/" target="_blank">https://vote.heliosvoting.org/</a>>,<br>
<div><div class="h5">> an online, open-source, cryptographically-verifiable voting system, can use<br>
> advanced voting procedures such as Range, Majority Judgment, and SODA.<br>
> (Condorcet is a significantly harder problem but probably doable, and IRV<br>
> is essentially impossible).<br>
><br>
> My question is: for the Range voting structures, is it acceptable to just<br>
> keep one tally (total score) for each candidate, or do you also need a<br>
> tally of number of voters who rated/didn't rate a candidate? The latter<br>
> would be used for average-based schemes; so this question is equivalent to<br>
> asking, are such schemes important enough to be worth making the data<br>
> structures more complex? Since I'm the one signing up for the programming<br>
> work here, I'd appreciate it if answers that ask me to do more work have a<br>
> reasoning and a strength (ie, "I'd kinda prefer it" versus "I think it is<br>
> absolutely necessary").<br>
><br>
</div></div>> Jameson--<br>
<br>
Kathy Dopp<br>
<a href="http://electionmathematics.org" target="_blank">http://electionmathematics.org</a><br>
Town of Colonie, NY 12304<br>
"One of the best ways to keep any conversation civil is to support the<br>
discussion with true facts."<br>
"Renewable energy is homeland security."<br>
<br>
Fundamentals of Verifiable Elections<br>
<a href="http://kathydopp.com/wordpress/?p=174" target="_blank">http://kathydopp.com/wordpress/?p=174</a><br>
<br>
View some of my research on my SSRN Author page:<br>
<a href="http://ssrn.com/author=1451051" target="_blank">http://ssrn.com/author=1451051</a><br>
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</blockquote></div><br>