13 Sep 2017
I’ve been asked about a number of ideas lately involving voting systems and blockchains. This blog piece talks about all the security properties that a voting system needs to have, where blockchains help, and where they don’t.
Let’s start off a decade ago, when Daniel Sandler and I first wrote a paper saying blockchains would be useful for voting systems. We observed that voting machines running on modern computers have overwhelming amounts of CPU and storage, so let’s use it in a serious way. Let’s place a copy of every vote on every machine and let’s use timeline entanglement (Maniatis and Baker 2002), so every machine’s history is protected by hashes stored on other machines. We even built a prototype voting system called VoteBox that used all of this, and many of the same ideas now appear in a design called STAR-Vote, which we hope could someday be used by real voters in real elections.
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