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[liberationtech] How to stop online proxy vote?

Sahar Massachi Sahar at
Wed Jul 17 13:28:18 PDT 2013

Seconding Florian.

You could try finding lists of free proxy servers and preventatively block
them. You could set up a rule that looks for many votes coming in either
all at once or once every X seconds.
You could try requiring cookies and captchas.

But all of these methods can be circumvented, even by bored compsci majors.

Requiring an identity token from an provider like facebook, twitter, etc
really seems to be your best bet.

On Wed, Jul 17, 2013 at 4:14 PM, Florian Weimer <fw at> wrote:

> * Buddhadeb Halder:
> > However it looks some people are misusing the online voting system. Could
> > you please let me know how to prevent such proxy voting?
> I think proxy voting is a technical term with a totally different
> meaning (a proxy is someone who casts a vote on behalf of someone who
> is absent but otherwise eligible for voting; this may come with or
> without a mandate to vote in a particular way).
> One way to avoid double-voting is to associate each vote with an
> identity from an identity provider such as Facebook.  This may not be
> what you want, though.
> Secure online voting is really quite hard, particularly if you want
> anonymity, secrecy, resistance to coercion, prevention of
> double-voting, and an audit trail.
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Sahar Massachi

c: (585) 313-6649
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