Paper 2021/851

Multiple Candidates Coercion-Resistant Blockchain-Based E-Voting Protocol With Receipts

Riccardo Longo and Chiara Spadafora

Abstract

This paper extends the two-candidate's protocol of Spadafora et al. to the multi-candidate case, making it applicable to elections where each voter expresses $P$ preferences among $M$ possible choices. The generalized protocol still achieves coercion and vote-selling resistance while being transparent, fully verifiable and receipt-based. The protocol relies on a generic blockchain with standard properties, and we prove the security of the construction under the standard Decisional Diffie Hellman assumption.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint. Minor revision.
Keywords
e-votingblockchainDDHelection schemeszero knowledge
Contact author(s)
riccardolongomath @ gmail com
c spadaf @ libero it
History
2021-06-22: received
Short URL
https://ia.cr/2021/851
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2021/851,
      author = {Riccardo Longo and Chiara Spadafora},
      title = {Multiple Candidates Coercion-Resistant Blockchain-Based E-Voting Protocol With Receipts},
      howpublished = {Cryptology ePrint Archive, Paper 2021/851},
      year = {2021},
      note = {\url{https://eprint.iacr.org/2021/851}},
      url = {https://eprint.iacr.org/2021/851}
}
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