>Getting a "receipt" is also problematic: You should never be able to prove you voted A over B or vice versa since that opens up ways to intimidate people to vo

>Getting a "receipt" is also problematic: You should never be able to prove you voted A over B or vice versa since that opens up ways to intimidate people to vote one way and coerce them to prove it. Your receipt does not have to mention who you voted for in a way that's verifiable by a third party. But this problem is also a problem for mail-in ballots. >using somewhat public things like SSN, "numbers in your street address" and a credit card number is a terrible idea. Agreed, this does not mean that it is not feasible. You could use some zero-knowledge based proof that ensure that the person is allowed to vote and has voted only once without knowing his identity. Mail-in ballots are also problematic in that regard. I dislike that people say evoting is a bad idea when we already have things like mail in ballots which are analogous to a poor e voting system. >Also requiring a credit card or home to vote would almost certainly be unconstitutional. But don't you need a registered address to vote?