If there were one aspect of electronic voting I could change it would be the following: allow electronic votes to be reviewed by each individual at a later date, from two independent organizations. Each vote gets sent to two independent electronic counting organizations, and each let you verify your vote after the election, with an (anonymous) confirmation number issued at voting time.
If enough people cry foul to rule out a large group collectively lying or forgetting their confirmation numbers, fraud would be much easier to establish and localize. Moreover, requiring each independent database of votes to match to within some margin would also decrease the likelihood of fraud by requiring collusion between both organizations.
EDIT: Note that the confirmation number would be issued to you anonymously and sans receipt - there would be no way to prove your vote - you could have found some random confirmation number, and no recourse for a single citizen crying foul. The point, rather, is that if several hundred or thousand individuals noticed that their vote seemed to have changed, the likelihood that they were all making it up or forgetting their confirmation numbers would decrease substantially.
If enough people cry foul to rule out a large group collectively lying or forgetting their confirmation numbers, fraud would be much easier to establish and localize. Moreover, requiring each independent database of votes to match to within some margin would also decrease the likelihood of fraud by requiring collusion between both organizations.
EDIT: Note that the confirmation number would be issued to you anonymously and sans receipt - there would be no way to prove your vote - you could have found some random confirmation number, and no recourse for a single citizen crying foul. The point, rather, is that if several hundred or thousand individuals noticed that their vote seemed to have changed, the likelihood that they were all making it up or forgetting their confirmation numbers would decrease substantially.