#### @Steven Knox

``Your set of requirements for e-voting is impossible to meet, specifically: Receipt-freeness and Individual verifiability"

This seems quite bizarre, but cryptography can help us here. Okamoto has developed one such scheme which claims to provide both receipt-freeness and individual verifiability: http://citeseer.ist.psu.edu/129743.html

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Chevallier-Mames, Fouque, Pointcheval, Stern & Traore have claimed that [in their standard model] the following properties cannot be met simultaneously:

* Universal verifiability and privacy

* Universal verifiability and receipt-freeness

(It may of course be possible to achieve these properties if different assumptions are made. I haven't looked at what they define as the "standard model," hence I cannot offer judgement as to whether such a model is realistic.) See http://www.di.ens.fr/~fouque/pub/wote06.pdf

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For further academic research you may be interested in the following survey papers:

http://www.math.temple.edu/~wds/homepage/cryptovot.pdf

http://www.ksp.sk/~zuzka/elevote.pdf

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Further links can be found from Helger Lipmaa's voting page:

http://www.adastral.ucl.ac.uk/~helger/crypto/link/protocols/voting.php