I don't need to prove to the nefarious party. The nefarious party needs to prove to me that my vote was properly counted. I have all the cards. Its a bit like using numbers as standins for signatures on taxes when one files electronically. The taxpayer holds all the proofs that the number is his signature on her computer.
The first step, before you can propose any kind of solution, is to understand the problem.
Let's take a look at this again:
So what we do is treat electronic voting just the same as we treat paper voting. I don't think so. Voters can and should get personal copies of what they voted.There should be ways to rectify such errors by process which is both simple and quick. Verification methods should be robust and not include include near sighted people who need extra light to verify votes.
In fact it seems the government should not be in the business of supplying computers at sites for voters unless voters don't have computers connected to the internet. All the voter does is check in and vote, then when votes are to be counted queries should made to the voter's computer to verify his vote. against the voter's verification routine.
Absolutely not.
Voting should be immune to coercion and bribery and that necessitates not being able to prove to a coercer how you voted.
Blahface is envisaging duress - imagine, for example, that your family has been kidnapped, and are held at gunpoint, while the kidnapper sends you off to cast a ballot for his preferred candidate, Candidate B. He and his friends are doing this to families of voters who support Candidate A all across your swing state, to try to get their guy elected instead. But in order to be an effective coercion strategy, our villain needs to know that you didn't vote for his opponent - he needs evidence that you voted the way he told you too, or there is no point in kidnapping your family - you can vote for candidate A, and simply lie; by
saying you voted for B, you convince him to let your family go free.
Or perhaps a more likely scenario - a big employer in town gets his 10,000 workers together the day before the vote, and says 'Everyone must bring in their voting slip next week, showing that they voted for candidate B. Anyone who doesn't bring in a slip, or who voted for A, will be fired'.
If voters get personal copies of what they voted, then this scenario becomes a real possibility; but without those personal records, it is impossible - the voters can pick the candidate they like, and their boss has no way to coerce them to do otherwise.
The nefarious party in these scenarios is not the government, or the vote-counting organisation; it is a third party with influence over a number of voters.