Welcome to the resource topic for 2013/235
Title:
Ballot secrecy and ballot independence: definitions and relations
Authors: Ben Smyth, David Bernhard
Abstract:We study ballot independence for election schemes. First, we formally define ballot independence as a cryptographic game and prove that ballot secrecy implies ballot independence. Secondly, we introduce a notion of controlled malleability and prove that it is sufficient for ballot independence. We also prove that non-malleable ballots are sufficient for ballot independence. Thirdly, we prove that ballot independence is sufficient for ballot secrecy in a special case. Our results show that ballot independence is necessary in election schemes satisfying ballot secrecy. Furthermore, our sufficient conditions enable simpler proofs of ballot secrecy.
ePrint: https://eprint.iacr.org/2013/235
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