How to create an online poll
my friend wants to create a poll in the internet. Her requirements are:
1. data-security for the people who vote in the poll.
2. everybody can only vote one time
3. it should for my friend (but not the voters) be possible to find out who voted.
4. Up to 1200 voters.
5. Free of cost.
It is only one question with three possible answers.
Does anyone of you know which site in the internet provides such polls. We found some sites, but they are not secure or allow only for a small number of voters.
Does anyone have experience with such polls?
Any other ideas?
Thanks in advance