Was your vote counted? Our crypto expert weighs in

How can we sure that our votes have been accurately counted? 

According to CSAIL cryptography expert Ron Rivest, the key is to give everyone encrypted
How can we sure that our votes have been accurately counted? According to CSAIL cryptography expert Ron Rivest, the key is to give everyone encrypted "receipts".

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How can we sure that our votes have been accurately counted?

According to CSAIL cryptography expert Ron Rivest, the key is to give everyone encrypted "receipts".

Voters can then go to an online database that lists their encrypted receipt and shows that it matches up with the one they picked up at the ballot box.

Watch Professor Rivest explain the concept on Numberphile: