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See http://en.wikipedia.org/wiki/Punchscan http://en.wikipedia.org/wiki/Punchscan for an example of one such system which preserves the secret ballot property.
by njs12345 14y ago
See http://en.wikipedia.org/wiki/Punchscan http://en.wikipedia.org/wiki/Punchscan for an example of one such system which preserves the secret ballot property.
- kybernetikos 14y agoFrom reading the wiki article it seems that Punchscan allows the voter to prove which way they voted.
- trhtrsh 14y agoThat is incorrect. Why do you think so? Are you thinking of this: ". The voter can look up her ballot by typing in the serial number and she can check that information held by the election authority matches her ballot. " The voter must retain her vote (A or B) in human memory, which cannot be externally verified, except by brain scan, etc... but that detail is rather unsolvable. Punchscan is a bit impractical for verifying large ballots, but large contested ballots are rare.
- kybernetikos 14y agoYou're right, only the piece you've already kept, which by itself is not enough to prove which way you voted is kept. I was confused because it said that it showed you something which could prove that a vote was 'counted as cast', and I don't see how you can prove that without the system proving to you that it knew how you cast your vote.
- dbaupp 14y agoWow! That is a really elegant solution. I wonder what (if any) pitfalls it has, other than the increased complexity and less obvious correctness (i.e. it would be hard to convince a non-mathematically inclined person that it works properly).